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1.
Rev. argent. cir ; 114(2): 117-123, jun. 2022. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1387595

ABSTRACT

RESUMEN Antecedentes: el cáncer gástrico constituye una enfermedad con una alta incidencia y mortalidad en Uruguay. El grupo sanguíneo A ha sido considerado un factor de riesgo así como de mayor prevalencia en esta enfermedad. Objetivo: El objetivo del trabajo es comparar el porcentaje entre el grupo sanguíneo A en pacientes con diagnóstico de cáncer gástrico y población donante de sangre en Uruguay. Material y métodos: se trata de un estudio observacional y retrospectivo. El tamaño muestral se determinó mediante la fórmula de comparación de proporciones con un nivel de confianza de 95% y una potencia de 80%. El número calculado fue de 149 para cada grupo. Se incluyeron todos los pacientes del Hospital Maciel y la Cooperativa Médica de Florida que cumplieron con los criterios de ingreso y una población de donantes de sangre de ambas instituciones. El análisis se realizó mediante la prueba de χ2 (chi cuadrado) estableciéndose un nivel de significación de 0,05. Resultados: se incluyeron 153 pacientes y usuarios en cada grupo. El grupo sanguíneo A presentó menor porcentaje en los pacientes con cáncer gástrico (35,9%) en relación con la población donante de sangre (36,6%). La diferencia no fue estadísticamente significativa entre los grupos estudiados. Conclusiones: se encontró que no hay diferencia significativa entre los porcentajes del grupo sanguíneo A de los grupos comparados.


ABSTRACT Background: Gastric cancer has high incidence and mortality in Uruguay. Blood group A has been considered a risk factor for gastric cancer and has high prevalence in this disease. Objective: The aim of this study is to compare the percentage of blood group A in patients with gastric cancer and in blood donors in Uruguay. Material and methods: We conducted an observational and retrospective study. We used the sample size calculation for comparing proportions with a confidence of 95% and 80% power. The number calculated was 149 for each group. We included all the patients from Hospital Maciel and Cooperativa Médica de Florida who met the admission criteria and a population of blood donors from both institutions. The chi-square test was used and a p value < 0.05 was considered statistically significant. Results: A total of 153 patients and blood donors were included in each group. Blood group A was less common in gastric cancer patients than in blood donors (35.9% vs. 36.6%). The difference was not statistically significant between the groups studied. Conclusions: We did not find any significant difference in the percentage of blood group A in the groups compared.

2.
Med. UIS ; 35(1): 31-42, ene,-abr. 2022. tab, graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1394430

ABSTRACT

Resumen La infección por Helicobacter pylori se asocia con enfermedades gastroduodenales como gastritis crónica, úlcera péptica y adenocarcinoma gástrico. Actualmente se dispone de diferentes esquemas terapéuticos, sin embargo, el uso indiscriminado de antibióticos generó resistencia en este agente, razón para estudiar alternativas y reevaluar los criterios que determinan la selección de un esquema en específico. El objetivo de esta revisión fue describir los principios generales de tratamiento de acuerdo a guías de referencia y recomendaciones de autores independientes, y exponer el uso de la rifabutina como alternativa terapéutica. En la búsqueda bibliográfica se usaron los términos "Helicobacter pylori" AND "rifabutin", en las bases de datos PubMed, SciELO y el motor de búsqueda Google Scholar®. La evidencia actual sugiere que el uso de rifabutina como terapia de rescate es apropiado y seguro, y sería la alternativa ideal en casos de multirresistencia o difícil acceso a pruebas de susceptibilidad antibiótica. MÉD.UIS.2022;35(1): 31-42.


Abstract Helicobacter pylori infection is associated with gastroduodenal diseases such as chronic gastritis, peptic ulcer, and gastric adenocarcinoma. Nowadays, there are different therapeutic regimens, however, the indiscriminate use of antibiotics generated resistance in this agent, reason to study alternatives and reevaluate the criteria that determines the selection of a specific regimen. The aim of this review was to describe the general principles of treatment according to reference guidelines and recommendations of independent authors, and to present the use of rifabutin as a therapeutic alternative. The bibliographic search was performed using the terms "Helicobacter pylori" AND "rifabutin" in the databases PubMed, SciELO and the search engine Google Scholar®. Current evidence suggests that the use of rifabutin as rescue therapy is appropriate and safe, and would be an ideal alternative in cases of multidrug resistance or difficult access to antibiotic susceptibility tests. MÉD.UIS.2022;35(1): 31-42.

3.
Medicina UPB ; 41(1): 51-60, mar. 2022. tab
Article in Spanish | LILACS, COLNAL | ID: biblio-1362696

ABSTRACT

Helicobacter pylori es un carcinógeno tipo I resistente a múltiples antibióticos y con alta prioridad en salud pública. La infección por este microorganismo está influenciada por una interacción compleja entre la genética del huésped, el entorno y múltiples factores de virulencia de la cepa infectante. Afecta al 50 % de la población mundial, provocando afecciones gastroduodenales graves, la mayoría de forma asintomática. El 20 % de los individuos con H. pylori pueden desarrollar a través del tiempo lesiones gástricas preneoplásicas y el 2 % de ellos un cáncer gástrico. Las manifestaciones clínicas gastrointestinales y extragastrointestinales están asociadas a su virulencia y a la respuesta del sistema inmunológico con la liberación de citosinas proinflamatorias, tales como TNF-alfa, IL-6, IL-10 e IL-8, causantes de inflamación aguda y crónica. Múltiples factores de virulencia han sido estudiados como el gen A asociado a la citotoxina (CagA) y la citotoxina vacuolante (VacA), los cuales juegan un rol importante en la aparición del cáncer gástrico. Dada la resistencia cada vez mayor a los antibióticos utilizados, las líneas de estudio en el futuro inmediato deben estar encaminadas en establecer la utilidad de los nuevos antibióticos y la determinación de profagos colombianos en todo el país. Esta revisión tiene como objetivo hacer una puesta al día sobre las características del H. pylori, los mecanismos patogénicos, genes de virulencia, su asociación con el mayor riesgo de cáncer gástrico, farmacorresistencia microbiana y su erradicación.


Helicobacter pylori is recognized as a class I carcinogen resistant to multiple antibiotics and with high priority in public health. The infection caused by this microorganism is influenced by a complex interaction between host genetics, environment, and multiple virulence factors of the infecting strain. It affects 50% of the world population, causing severe gastroduodenal conditions, most of them asymptomatic. Through time, 20% of individuals with H. pylori may develop preneoplastic gastric lesions and 2% of them develop gastric cancer. The gastrointestinal and extra-gastrointestinal clinical manifestations are associated with its virulence and the response of the immune system with the release of pro-inflammatory cytokines, such as TNF-alpha, IL-6, IL-10 and IL-8, which cause acute and chronic inflammation. Multiple virulence factors have been studied, such as cytotoxin-associated gene A (CagA) and vacuolating cytotoxin A (VacA), which play an important role in the development of gastric cancer. Due to the increasing antibiotics resistance, the research in the immediate future should be aimed at establishing the usefulness of the new antibiotics and the determination of Colombian prophages throughout the country. This paper aims to update the characteristics of H. pylori, its pathogenic mechanisms, virulence genes, its association with the increased risk of gastric cancer, microbial drug resistance, and eradication.


Helicobacter pylorié um carcinógeno tipo I resistente a múltiplos antibióticos e com alta prioridade na saúde pública. A infecção por este microrganismo está influenciada por uma interação complexa entre a genética do hospede, o entorno e múltiplos fatores de virulência da cepa infectante. Afeta a 50% da população mundial, provocando afeções gastroduodenais graves, a maioria de forma assintomática. 20% dos indivíduos com H. pylori podem desenvolver através do tempo lesões gástricas pré-neoplásicas e 2% deles um câncer gástrico. As manifestações clínicas gastrointestinais e extragastrointestinais estão associadas à sua virulência e à resposta do sistema imunológico com a liberação de citocinas pró-inflamatórias, tais como TNF-alfa, IL-6, IL-10 e IL-8, causantes de inflamação aguda e crónica. Múltiplos fatores de virulência hão sido estudados como o gene. A associado à citotoxina (CagA) e a citotoxina vacuolante (VacA), os quais jogam um papel importante no aparecimento do câncer gástrico. Dada a resistência cada vez maior aos antibióticos utilizados, as linhas de estudo no futuro imediato devem estar encaminhadas em estabelecer a utilidade dos novos antibióticos e a determinaçãode profagos colombianos em todo o país. Esta revisão tem como objetivo fazer uma atualização sobre as características do H. pylori, os mecanismos patogénicos, genes de virulência, sua associação com o maior risco de câncer gástrico, farmacorresistência microbiana e sua erradicação.


Subject(s)
Humans , Helicobacter pylori , Drug Resistance , Carcinogens , Virulence Factors , Disease Eradication , Immune System , Anti-Bacterial Agents
4.
Article in Chinese | WPRIM | ID: wpr-936100

ABSTRACT

Objective: To explore the feasibility and preliminary technical experience of the double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after total laparoscopic proximal gastrectomy (TLPG) in the treatment of adenocarcinoma of esophagogastric junction (AEG). Methods: A descriptive case series study method was used. Clinical data of 12 AEG patients who underwent the double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after TLPG from January 2021 to June 2021 at the Department of General Surgery, First Medical Center, PLA General Hospital were retrospectively analyzed. Among the 12 patients, the median tumor diameter was 2.0 (1.5-2.9) cm, and the pathological stage was T1-3N0-3aM0. All the patients routinely underwent TLPG and D2 lymph node dissection with double-tract reconstruction combined with π-shaped esophagojejunal anastomosis: (1) Double-tract reconstruction combined with π-shaped esophagojejunal anastomosis: mesentery 25 cm away from the Trevor ligament was treated, and an incision of about 1 cm was made on the mesenteric border of the intestinal wall and the right wall of the esophagus, two arms of the linear cutting closure were inserted, and esophagojejunal side-to-side anastomosis was performed. A linear stapler was used to cut off the lower edge of the anastomosis and close the common opening to complete the esophagojejunal π-shaped anastomosis. (2) Side-to-side gastrojejunostomy anastomosis: an incision of about 1 cm was made at the jejunum to mesenteric border and at the greater curvature of the remnant stomach 15 cm from the esophagojejunostomy, and a linear stapler was inserted to complete the gastrojejunostomy side-to-side anastomosis. (3) Side-to-side jejunojejunal anastomosis: an incision of about 1 cm was made at the proximal and distal jejunum to the mesangial border 40 cm from the esophagojejunostomy, and two arms of the linear stapler were inserted respectively to complete the side-to-side jejunojejunal anastomosis. A midline incision about 4-6 cm in the upper abdomen was conducted to take out the specimen, and an abdominal drainage tube was placed, then layer-by-layer abdominal closure was performed.@*INDICATIONS@#(1) adenocarcinoma of esophagogastric junction (Seiwert type II-III) was diagnosed by endoscopy and pathological examination; (2) ability to preserve at least 1/2 of the distal stomach after R0 resection of proximal stomach was evaluated preoperatively.@*CONTRAINDICATIONS@#(1) evaluation indicated distant metastasis of tumor or invasion of other organs; (2) short abdominal esophagus or existence of diaphragmatic hiatal hernia was assessed during the operation; (3) mesentery was too short or the tension was too high; (4) existence of severe comorbidities before surgery; (5) only palliative surgery was required in preoperative evaluation; (6) poor nutritional status.@*MAIN OUTCOME MEASURES@#operation time, intraoperative blood loss, postoperative complications, time to first flatus and time to start liquid diet, postoperative hospital stay, operation cost, etc. Continuous variables that conformed to normal distribution were presented as mean ± standard deviation, and those that did not conform to normal distribution were presented as median (Q1,Q3). Results: All the patients successfully completed TLPG with double-tract reconstruction combined with π-shaped esophagojejunal anastomosis, and postoperative pathology showed that no cancer cells were found on the upper incision margin. The operation time was (247.9±62.4) minutes, the median intraoperative blood loss was 100.0 (62.5, 100.0) ml, no intraoperative blood transfusion was required, the incision length was (4.9±1.0) cm, and the operation cost was (55.5±0.7) thousand yuan. The median time to start liquid diet was 1.0 (1.0, 2.0) days, and the mean time to flatus was (3.1±0.9) days. All the patients were discharged uneventfully. Only 1 patient developed postoperative paralytic ileus and infectious pneumonia with Clavien-Dindo classification of grade II. The patient recovered after conservative treatment. There was no surgery-related death. The postoperative hospital stay was (8.3±2.1) days. Conclusion: The double-tract reconstruction combined with π-shaped esophagojejunal anastomosis after TLPG is safe and feasible, which can minimize surgical trauma and accelerate postoperative recovery.


Subject(s)
Adenocarcinoma/surgery , Anastomosis, Surgical/methods , Blood Loss, Surgical , Esophagogastric Junction/surgery , Flatulence , Gastrectomy/methods , Humans , Laparoscopy , Retrospective Studies , Stomach Neoplasms/surgery
5.
Article in Chinese | WPRIM | ID: wpr-936099

ABSTRACT

Objective: Currently, the Overlap anastomosis is one of the most favored reconstruction methods of intracorporeal esophagojejunostomy (EJS). Despite many advantages of the method, it remains some shortcomings to be improved when it comes to the retraction of the esophagus stump, the insertion of the anvil fork of the linear stapler into a "pseudo" lumen, and the closure of the common entry hole. This study aims to investigate the safety and feasibility of a multi-mode modified Overlap anastomosis. Methods: A descriptive case series study was conducted. Medical records of 152 consecutive patients who underwent totally laparoscopic total gastrectomy (TLTG) with our multi-mode modified Overlap EJS method by the same surgical team at our department from February 2017 to June 2020 were retrospectively analyzed. The multi-mode modified Overlap method mainly included (1) After ensuring the safety of tumor resection margin (proximal margin was at least 3 cm from the tumor), the esophagus was partially transected from left to right (with 5-8 mm width esophagus continuation). The specimen was then placed in a plastic bag which was tied up at the mouth using strings with a part of the esophageal wall poking through. Then the plastic bag containing the specimen was transferred to the right lumbar region, while the patient's body position was adjusted so that the abdominal esophagus could be pulled by the gravity of the specimen. (2) Using the "three-direction traction" method. The esophageal lumen was properly exposed, then guided by the gastric tube, the anvil fork was accurately placed into the esophageal lumen for completing the side-to-side EJS. (3) The 3-0 barbed suture was used in the closure of the common entry hole of the stapler from dorsally to ventrally with simple one-layer continuous suture (the stitch going from inside to inside) followed by continuous Lembert's suture (the stitch going from outside to outside). Combined with clinicopathological characteristics, the perioperative outcomes and postoperative complications of the whole group were analyzed and evaluated. Results: The study cohort included 129 men and 23 women, with a mean age of (60.2±9.1) years and a mean body mass index (BMI) of (23.2±3.1) kg/m(2). Of the 152 patients, 23 patients (15.1%) had a history of previous abdominal surgery; dentate line was invaded by tumor in 21 patients (13.8%). The mean length of the proximal resection margin was (3.3±0.3) cm and the postoperative pathological examination indicated negative resection margin tumor. The mean operative time and anastomotic time were (302.1±39.9) minutes and (29.8±5.4) minutes, respectively. The mean estimated blood loss was (87.9±46.4) ml. The mean length of postoperative hospital stay was (12.3±7.3) days. The overall severe postoperative complications (Clavien-Dindo ≥ II) occurred in 22 patients (14.5%). Six cases of pancreatic leakage were successfully recovered by adequate drainage, inhibition of pancreatic exocrine secretion and nutritional support. Ten cases of pneumonia and three cases of abdominal infection were cured with anti-infection and physical therapy. Two patients developed anastomotic leakage postoperatively. One case was caused by excessive tension of the Roux loop of the jejunum and excessive opening on the side of the jejunum after side-to-side anastomosis, and the other case was caused by an accidental intraoperative occurrence of "nasogastric tube stapled to the side-to-side anastomosis". Both of them recovered after conservative treatment including adequate drainage, anti-infection, and adequate nutritional support. One patient underwent immediate open surgery because of Peterson's hernia 7 days after TLTG, and the patient died due to extensive small bowel necrosis. Conclusions: Multi-mode modified overlap method simplifies the operation and reduces the difficulty of EJS. It is a safe and feasible method for EJS.


Subject(s)
Aged , Anastomosis, Surgical/methods , Feasibility Studies , Female , Gastrectomy/methods , Humans , Laparoscopy/methods , Male , Margins of Excision , Middle Aged , Plastics , Postoperative Complications/etiology , Retrospective Studies , Stomach Neoplasms/pathology
6.
Article in Chinese | WPRIM | ID: wpr-936098

ABSTRACT

Objective: To compare the safety and effectiveness of esophagojejunostomy (EJS) through extracorporeal and intracorporeal methods after laparoscopic total gastrectomy (LTG). Methods: A retrospective cohort study was carried out. Clinicopathological data of 261 gastric cancer patients who underwent LTG, D2 lymphadenectomy, and Roux-en-Y EJS with complete postoperative 6-month follow-up data at the General Surgery Department of Nanfang Hospital from October 2018 to June 2021 were collected. Among these 261 patients, 139 underwent EJS with a circular stapler via mini-laparotomy (extracorporeal group), while 122 underwent intracorporeal EJS (intracorporeal group), including 43 with OrVil(TM) anastomosis (OrVil(TM) subgroup) and 79 with Overlap anastomosis (Overlap subgroup). Compared with the extracorporeal group, the intracorporeal group had higher body mass index, smaller tumor size, earlier T stage and M stage (all P<0.05). Compared with the Overlap subgroup, the Orvil(TM) subgroup had higher proportions of upper gastrointestinal obstruction and esophagus involvement, and more advanced T stage (all P<0.05). No other significant differences in the baseline data were found (all P>0.05). The primary outcome was complications at postoperative 6-month. The secondary outcomes were operative status, intraoperative complication and postoperative recovery. Continuous variables with a skewed distribution are expressed as the median (interquartile range), and were compared using Mann-Whitney U test. Categorical variables are expressed as the number and percentage and were compared with the Pearson chi-square, continuity correction or Fisher's exact test. Results: Compared with the extracorporeal group, the intracorporeal group had smaller incision [5.0 (1.0) cm vs. 8.0 (1.0) cm, Z=-10.931, P=0.001], lower rate of combined organ resection [0.8% (1/122) vs. 7.9% (11/139), χ(2)=7.454, P=0.006] and higher rate of R0 resection [94.3% (115/122) vs. 84.9 (118/139), χ(2)=5.957, P=0.015]. The morbidity of intraoperative complication in the extracorporeal group and intracorporeal group was 2.9% (4/139) and 4.1% (5/122), respectively (χ(2)=0.040, P=0.842). In terms of postoperative recovery, the extracorporeal group had shorter time to liquid diet [(5.1±2.4) days vs. (5.9±3.6) days, t=-2.268, P=0.024] and soft diet [(7.3±3.7) days vs. (8.8±6.5) days, t=-2.227, P=0.027], and shorter postoperative hospital stay [(10.5±5.1) days vs. (12.2±7.7) days, t=-2.108, P=0.036]. The morbidity of postoperative complication within 6 months in the extracorporeal group and intracorporeal group was 25.9% (36/139) and 31.1%, (38/122) respectively (P=0.348). Furthermore, there was also no significant difference in the morbidity of postoperative EJS complications [extracorporeal group vs. intracorporeal group: 5.0% (7/139) vs. 82.% (10/122), P=0.302]. The severity of postoperative complications between the two groups was not statistically significant (P=0.289). In the intracorporeal group, the Orvil(TM) subgroup had more estimated blood loss [100.0 (100.0) ml vs.50.0 (50.0) ml, Z=-2.992, P=0.003] and larger incision [6.0 (1.0) cm vs. 5.0 (1.0) cm, Z=-3.428, P=0.001] than the Overlap subgroup, seemed to have higher morbidity of intraoperative complication [7.0% (3/43) vs. 2.5% (2/79),P=0.480] and postoperative complications [37.2% (16/43) vs. 27.8% (22/79), P=0.286], and more severe classification of complication (P=0.289). Conclusions: The intracorporeal EJS after LTG has similar safety to extracorporeal EJS. As for intracorporeal EJS, the Overlap method is safer and has more potential advantages than Orvil(TM) method, and is worthy of further exploration and optimization.


Subject(s)
Anastomosis, Surgical/methods , Gastrectomy/methods , Humans , Intraoperative Complications , Laparoscopy/methods , Postoperative Complications/surgery , Retrospective Studies , Stomach Neoplasms/surgery , Treatment Outcome
7.
Article in Chinese | WPRIM | ID: wpr-936097

ABSTRACT

Objective: To compare clinical efficacy between laparoscopic radical proximal gastrectomy with double-tract reconstruction (LPG-DTR) and laparoscopic radical total gastrectomy with Roux-en-Y reconstruction (LTG-RY) in patients with early upper gastric cancer, and to provide a reference for the selection of surgical methods in early upper gastric cancer. Methods: A retrospective cohort study method was carried out. Clinical data of 80 patients with early upper gastric cancer who underwent LPG-DTR or LTG-RY by the same surgical team at the Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University from January 2018 to January 2021 were retrospectively analyzed. Patients were divided into the DTR group (32 cases) and R-Y group (48 cases) according to surgical procedures and digestive tract reconstruction methods. Surgical and pathological characteristics, postoperative complications (short-term complications within 30 days after surgery and long-term complications after postoperative 30 days), survival time and nutritinal status were compared between the two groups. For nutritional status, reduction rate was used to represent the changes in total protein, albumin, total cholesterol, body mass, hemoglobin and vitamin B12 levels at postoperative 1-year and 2-year. Non-normally distributed continuous data were presented as median (interquartile range), and the Mann-Whitney U test was used for comparison between groups. The χ(2) test or Fisher's exact test was used for comparison of data between groups. The Mann-Whitney U test was used to compare the ranked data between groups. The survival rate was calculated by Kaplan-Meier method categorical, and compared by using the log-rank test. Results: There were no statistically significant differences in baseline data betweeen the two groups, except that patients in the R-Y group were oldere and had larger tumor. Patients of both groups successfully completed the operation without conversion to laparotomy, combined organ resection, or perioperative death. There were no significant differences in the distance from proximal resection margin to superior margin of tumor, postoperative hospital stay, time to flatus and food-taking, hospitalization cost, short- and long-term complications between the two groups (all P>0.05). Compared with the R-Y group, the DTR group had shorter distal margins [(3.2±0.5) cm vs. (11.7±2.0) cm, t=-23.033, P<0.001], longer surgery time [232.5 (63.7) minutes vs. 185.0 (63.0) minutes, Z=-3.238, P=0.001], longer anastomosis time [62.5 (17.5) minutes vs. 40.0 (10.0) minutes, Z=-6.321, P<0.001], less intraoperative blood loss [(138.1±51.6) ml vs. (184.3±62.1) ml, t=-3.477, P=0.001], with significant differences (all P<0.05). The median follow-up of the whole group was 18 months, and the 2-year cancer-specific survival rate was 97.5%, with 100% in the DTR group and 95.8% in the R-Y group (P=0.373). Compared with R-Y group at postoperative 1 year, the reduction rate of weight, hemoglobin and vitamin B12 were lower in DTR group with significant differences (all P<0.05); at postoperative 2-year, the reduction rate of vitamin B12 was still lower with significant differences (P<0.001), but the reduction rates of total protein, albumin, total cholesterol, body weight and hemoglobin were similar between the two groups (all P>0.05). Conclusions: LPG-DTR is safe and feasible in the treatment of early upper gastric cancer. The short-term postoperative nutritional status and long-term vitamin B12 levels of patients undergoing LPG-DTR are superior to those undergoing LTG-RY.


Subject(s)
Albumins , Anastomosis, Roux-en-Y/adverse effects , Cholesterol , Gastrectomy/methods , Hemoglobins , Humans , Laparoscopy/methods , Postoperative Complications/etiology , Retrospective Studies , Stomach Neoplasms/pathology , Treatment Outcome , Vitamin B 12
8.
Article in Chinese | WPRIM | ID: wpr-936096

ABSTRACT

Objective: The pattern of digestive tract reconstruction in radical gastrectomy for gastric cancer is still inconclusive. This study aims to compare mid-term and long-term quality of life after radical gastrectomy for distal gastric cancer between Billroth-I (B-I) and Billroth-II (B-II) reconstruction. Methods: A retrospective cohort study was conducted.Clinicopathological and follow-up data of 859 gastric cancer patients were colected cellected from the surgical case registry database of Gastrointestinal Surgery Center of Sichuan University West China Hospital, who underwent radical distal gastric cancer resection between January 2016 and December 2020. Inclusion criteria: (1) gastric cancer confirmed by preoperative gastroscopy and biopsy; (2) elective radical distal major gastrectomy performed according to the Japanese Society for Gastric Cancer treatment guidelines for gastric cancer; (3) TNM staging referenced to the American Cancer Society 8th edition criteria and exclusion of patients with stage IV by postoperative pathology; (4) combined organ resection only involving the gallbladder or appendix; (5) gastrointestinal tract reconstruction modality of B-I or B-II; (6) complete clinicopathological data; (7) survivor during the last follow-up period from December 15, 2021 to January 15, 2022. Exclusion criteria: (1) poor compliance to follow-up; (2) incomplete information on questionnaire evaluation; (3) survivors with tumors; (4) concurrent malignancies in other systems; (5) concurrent psychiatric and neurological disorders that seriously affected the objectivity of the questionnaire or interfered with patient's cognition. Telephone follow-up was conducted by a single investigator from December 2021 to January 2022, and the standardized questionnaire EORTC QLQ-C30 scale (symptom domains, functional domains and general health status) and EORTC QLQ-STO22 scale (5 symptoms of dysphagia, pain, reflux, restricted eating, anxiety; 4 single items of dry mouth, taste, body image, hair loss) were applied to evaluate postoperative quality of life. In 859 patients, 271 were females and 588 were males; the median age was 57.0 (49.5, 66.0) years. The included cases were divided into the postoperative follow-up first year group (202 cases), the second year group (236 cases), the third year group (148 cases), the fourth year group (129 cases) and the fifth year group (144 cases) according to the number of years of postoperative follow-up. Each group was then divided into B-I reconstruction group and B-II reconstruction group according to procedure of digestive tract reconstruction. Except for T-stage in the fourth year group, and age, tumor T-stage and tumor TNM-stage in the fifth year group, whose differences were statistically significant between the B-I and B-II reconstruction groups (all P<0.05), the differences between the B-I and B-II reconstruction groups in terms of demographics, body mass index (BMI), tumor TNM-stage and tumor pathological grading in postoperative follow-up each year group were not statistically significant (all P>0.05), suggesting that the baseline information between B-I reconstruction group and the B-II reconstruction group in postoperative each year group was comparable. Evaluation indicators of quality of life (EORTC QLQ-C30 and EORTC QLQ-STO22 scales) and nutrition-related laboratory tests (serum hemoglobin, albumin, total protein, triglycerides) between the B-I reconstruction group and B-II reconstruction group in each year group were compared. Non-normally distributed continuous variables were presented as median (Q(1),Q(3)), and compared by using the Wilcoxon rank sum test (paired=False). The χ(2) test or Fisher's exact test was used for comparison of categorical variables between groups. Results: There were no statistically significant differences in all indexes EORTC QLQ-30 scale between the B-I reconstruction group and the B-II reconstruction group among all postoperative follow-up year groups (all P>0.05). The EORTC QLQ-STO22 scale showed that significant differences in pain and eating scores between the B-I reconstruction group and the B-II reconstruction group were found in the second year group, and significant differences in eating, body and hair loss scores between the B-I reconstruction group and the B-II reconstruction group were found in the third year group (all P<0.05), while no significant differences of other item scores between the B-I reconstruction group and the B-II reconstruction group were found in postoperative follow-up of all year groups (P>0.05). Triglyceride level was higher in the B-II reconstruction group than that in the B-I reconstruction group (W=2 060.5, P=0.038), and the proportion of patients with hyperlipidemia (triglycerides >1.85 mmol/L) was also higher in the B-II reconstruction group (19/168, 11.3%) than that in the B-I reconstruction group (0/34) (χ(2)=0.047, P=0.030) in the first year group with significant difference. Albumin level was lower in the B-II reconstruction group than that in the B-I reconstruction group (W=482.5, P=0.036), and the proportion of patients with hypoproteinemia (albumin <40 g/L) was also higher in the B-II reconstruction group (19/125, 15.2%) than that in the B-I reconstruction group (0/19) in the fifth year group, but the difference was not statistically significant (χ(2)=0.341, P=0.164). Other nutrition-related clinical laboratory tests were not statistically different between the B-I reconstruction and the B-II reconstruction in each year group (all P>0.05). Conclusions: The effects of both B-I and B-II reconstruction methods on postoperative mid-term and long-term quality of life are comparable. The choice of reconstruction method after radical resection of distal gastric cancer can be based on a combination of patients' condition, sugenos' eoperience and operational convenience.


Subject(s)
Aged , Albumins , Alopecia/surgery , Female , Gastrectomy/methods , Gastric Bypass , Humans , Male , Middle Aged , Pain , Quality of Life , Registries , Retrospective Studies , Stomach Neoplasms/surgery , Treatment Outcome , Triglycerides
9.
Article in Chinese | WPRIM | ID: wpr-936095

ABSTRACT

With the increasing incidence of upper gastric cancer and early gastric cancer, surgeons have gradually paid attention to the selection of appropriate digestive tract reconstruction methods. At present, the safety of surgery is no longer the main aim pursued by surgeons, and the focus of surgery has gradually changed to postoperative quality of life. Surgical procedures for upper gastric cancer include total gastrectomy (TG) and proximal gastrectomy (PG). Roux-en-Y anastomosis is recommended for digestive tract reconstruction after TG. The classic method of digestive tract reconstruction after PG is distal residual stomach and esophageal anastomosis. However, to prevent esophageal reflux caused by PG, a lot of explorations have been carried out over the years, including tubular gastroesophageal anastomosis, double-flap technique (Kamikawa anastomosis), interposition jejunum, double-tract reconstruction and so on. But the appropriate method of digestive tract reconstruction for upper gastric cancer is still controversial. In this paper, based on literatures and our clinical experience, the selection, surgical difficulties and techniques of digestive tract reconstruction after PG are discussed.


Subject(s)
Anastomosis, Roux-en-Y/methods , Anastomosis, Surgical/methods , Gastrectomy/methods , Gastric Stump/surgery , Humans , Quality of Life , Retrospective Studies , Stomach Neoplasms/surgery , Treatment Outcome
10.
Article in Chinese | WPRIM | ID: wpr-936094

ABSTRACT

There still remain some problemsin digestive tract reconstruction after robotic radical gastrectomy for gastric cancer at present, such as great surgical difficulties and high technical requirements. Based on the surgical experience of the Gastric Surgery Department of Union Hospital, Fujian Medical University and the literatures at home and abroad, relevant issues are discussed in terms of robotic radical distal gastrectomy (Billroth I, Billroth II, and Roux-en-Y gastrojejunostomy), proximal gastrectomy (double-channel and double-muscle flap anastomosis), and total gastrectomy (Roux-en-Y anastomosis, functional end-to-end anastomosis, FEEA, π-anastomosis, Overlap anastomosis, and modified Overlap anastomosis with delayed amputation of jejunum, i.e. later-cut Overlap). This article mainly includes (1) The principles of digestive tract reconstruction after robotic radical gastrectomy for gastric cancer. (2) Digestive tract reconstruction after robotic radical distal gastrectomy: Aiming at the weakness of traditional triangular anastomosis, we introduce the improvement of the technical difficulty, namely "modified triangular anastomosis", and point out that because Billroth II anastomosis is a common anastomosis method in China at present, manual suture under robot is more convenient and safe, and can effectively avoid anastomotic stenosis. (3) Digestive tract reconstruction after robotic proximal gastrectomy: It mainly includes double channel anastomosis and double muscle flap anastomosis, but these reconstruction methods are relatively complicated, and robotic surgery has not been widely carried out at present. (4) Digestive tract reconstruction after robotic total gastrectomy: The most classic one is Roux-en-Y anastomosis, mainly using circular stapler for end-to-side esophagojejunal anastomosis and linear stapler for side-to-side esophagojejunal anastomosis, for which we discuss the solutions to the existing technical difficulties. With the continuous innovation of robotic surgical system and anastomosis instruments, and with the gradual improvement of anastomosis technology, it is believed that digestive tract reconstruction after robotic radical gastrectomy for gastric cancer will have a good application prospect in gastric cancer surgery.


Subject(s)
Anastomosis, Roux-en-Y/methods , Gastrectomy/methods , Humans , Jejunum/surgery , Laparoscopy , Robotic Surgical Procedures , Robotics , Stomach Neoplasms/surgery
11.
Article in Chinese | WPRIM | ID: wpr-936092

ABSTRACT

With the development of instrument, equipment and surgical skills, especially the emergence of a series of high-level medical evidence, the laparoscopic techniques in the field of gastric surgery has been further expanded. Totally laparoscopic total gastrectomy (TLTG) has certain technical difficulties, and more challenges are reflected in the digestive tract reconstruction. The use of linear staplers has reduced the difficulty of digestive tract reconstruction to a certain extent and has strongly promoted the transition from laparoscopic-assisted total gastrectomy to TLTG. However, for TLTG, there are still many details that should be carefully concerned, so as to effectively avoid the surgical pitfalls and ensure the fluency and safety of the procedure. In this article, we discuss the surgical details based on our own experiences, including how to obtain surgical field exposure well, how to manage specific accidents when using linear stapler for esophagojejunostomy, how to prevent intra-abdominal hernias and Roux stasis syndrome, and how to prevent the stapled lines of the esophageal or jejunal stumps from direct contact with aorta.


Subject(s)
Anastomosis, Surgical/methods , Gastrectomy/methods , Humans , Jejunum/surgery , Laparoscopy/methods , Stomach Neoplasms/surgery
12.
Article in Chinese | WPRIM | ID: wpr-936091

ABSTRACT

Digestive tract reconstruction is extremely important during gastric cancer surgery, which is related to long-tern quality of life of patients. The selection of reconstruction methods and the application of reconstruction techniques are major topics in the field of reconstruction-related study of gastric cancer surgery. The clinical research on digestive tract reconstruction needs to be designed and implemented scientifically to comprehensively evaluate the impact of reconstruction methods on surgical safety, long-term survival outcomes, short- and long-term changes in quality of life, endoscopic mucosal changes and postoperative nutritional status. In addition, health economic analysis is also important and should be considered in reconstruction-related studies. In brief, selection of appropriate gastrointestinal reconstruction methods based on individual characteristics of each gastric cancer patients may be an important direction of clinical trials in the future.


Subject(s)
Gastrectomy/methods , Humans , Quality of Life , Retrospective Studies , Stomach Neoplasms/surgery , Treatment Outcome
13.
Article in Chinese | WPRIM | ID: wpr-936089

ABSTRACT

Lymphadenectomy, as one of the controversial foci in clinic, is an extremely important part of radical surgery for gastric cancer. So far, the preliminary consensus has been reached on the scope and number of lymph node dissection, based on the etiological mechanism, disease progression, diagnosis and treatment prognosis of gastric cancer. At present, some clinical issues of lymphadenectomy in curative gastrectomy are still need to be addressed. Firstly, standardized procedure in lymph node dissection for gastric cancer is a prerequisite to decrease the incidence of postoperative complications and to improve the prognosis of gastric cancer patients. Furthermore, the plausible treatment strategy in perioperative phase is also deemed as the other key method to offer a benefit of survival rate for advanced stage patients after lymphadenectomy. Last but not least, the technologies for enhancement the prediction accuracy of lymph node metastasis preoperatively or intraoperatively should be worthy in-depth study.


Subject(s)
Gastrectomy/methods , Humans , Lymph Node Excision/methods , Lymphatic Metastasis , Prognosis , Stomach Neoplasms/pathology
14.
Article in Chinese | WPRIM | ID: wpr-936086

ABSTRACT

Objective: To analyze the association of No.11p posterior lymph node metastasis with clinicopathological features and its prognostic significance in gastric cancer. Methods: A single-center retrospective cohort study was conducted. Clinicopathological data of patients with primary gastric cancers undergoing No.11p posterior lymph node dissection from January 2016 to December 2020 were retrieved from the Database of Gastric Cancer, West China Hospital, Sichuan University. Case inclusion criteria: (1) gastric cancer proved by pathology; (2) radical resection with intraoperative No.11p posterior lymph node dissection; (3) operations performed by the same surgical team; (4) no previous history of other malignant tumors and no concurrent malignant tumors. Those with stump gastric cancer, history of gastrectomy, neoadjuvant chemotherapy, incomplete clinicopathological data and lost to follow-up were excluded. During the operation, the upper edge of the pancreas was retracted forward to expose the area between the upper edge of the pancreas and the splenic vessels. The proximal segment of the splenic artery was skeletonized to remove lymphatic tissue anterior and superior to the splenic artery for No.11p lymph node dissection. For patients with lymphadenopathy in the area between the splenic artery and the splenic vein, dissection was performed. The enlarged lymph nodes were labeled with titanium clips and named as No.11p posterior lymph node. Pathological examination was performed separately after the specimen was isolated. Statistical analysis was performed using R software. Results: A total of 127 gastric cancer patients, who underwent No.11p posterior lymph nodes dissection were included in this study, of which 120 patients without No.11p posterior lymph nodes metastasis (No.11p posterior lymph nodes negative) and 7 patients with No.11p posterior lymph nodes metastasis (No.11p posterior lymph nodes positive). A total of 8 metastatic No.11p posterior lymph nodes were detected in 7 patients, metastasis rate and with a ratio of 5.5% (7/127) and 6.8% (8/127), respectively. In the subgroup analysis of T3-4 stage patients, the metastasis rate and ratio of No.11p posterior lymph nodes were 9.0% (7/78) and 10.7% (8/75), respectively. Compared to negative cases, patients with No.11p posterior lymph nodes metastasis had larger tumor (P=0.002), higher proportion of Borrmann type Ⅲ and Ⅳ tumors (P=0.005), more metastatic lymph nodes (P<0.001), more advanced T stage (P=0.043), N stage (P=0.004) and TNM stage (P=0.015). In survival analysis, patients with No.11p posterior lymph node metastasis had a significantly worse prognosis than those without metastasis after adjusting for TNM stage (hazard ratio=3.009, 95% confidence interval: 1.824-4.964, P<0.001). Conclusions: The No.11p posterior lymph node metastasis in gastric cancer is associated with worse prognosis. For patients of T3-4 stage gastric cancer, No.11p posterior lymph node dissection should be emphasized during radical operation.


Subject(s)
Gastrectomy , Humans , Lymph Node Excision , Lymph Nodes/pathology , Lymphatic Metastasis/pathology , Prognosis , Retrospective Studies , Stomach Neoplasms/pathology
15.
Article in Chinese | WPRIM | ID: wpr-936076

ABSTRACT

The standard lymphadenectomy (D2) is the most important quality control index for the surgical treatment of locally advanced gastric cancer (LAGC). It is debatable whether there is a survival benefit of extended lymphadenectomy beyond D2 dissection. Para-aortic lymph nodes are not included in the range of D2 lymph node dissection. However, the patients with para-aortic node metastasis can get better survival after neoadjuvant chemotherapy and D2+ surgery. Lymph nodes along the superior mesenteric vein (No.14v) are considered as regional nodes, and the prognosis of patients with No.14v metastasis treated with D2+ lymph node dissection is significantly better than that of stage Ⅳ patients undergoing only D2 dissection. No.14v was not included in the D2 lymph node dissection paradigm. In case with nodal metastases in No.6 group, D2+ dissection is recommended. Lymph nodes at the splenic hilum (No.10) are not included in the range of D2 dissection, when the tumor infiltrates the greater curvature of the stomach, D2+ splenectomy or No.10 nodal dissection should be performed. Lymph nodes on the posterior surface of pancreatic head (No.13) do not belong to the D2 range, but the rate of metastasis is significantly higher when distal gastric cancer invades the duodenum, D2+ lymphadenectomy is recommended. Lymph node dissection in the posterior group of the common hepatic artery (No.8p) can improve the patient's long-term survival, but there is no support from of evidence-based medicine. In the era of perioperative treatment and minimally invasive surgery in China, open or laparoscopic D2 lymphadenectomy is recommended for cT3-4N1M0 patients and SOX neoadjuvant chemotherapy plus D2 surgery plus SOX adjuvant chemotherapy should be carried out for patients with cT3-4N2-4M0. Depending on the patient's condition and the experience of the surgical team, open or laparoscopic surgery can be performed.


Subject(s)
Gastrectomy , Humans , Laparoscopy , Lymph Node Excision , Retrospective Studies , Stomach Neoplasms/pathology
16.
Article in Chinese | WPRIM | ID: wpr-936062

ABSTRACT

Standardized surgical management of postoperative specimens of gastric cancer is an important part of the standardized diagnosis and treatment of gastric cancer. It can reflect the accurate number and detailed distribution of lymph nodes in the specimen and lay the foundation for accurate and standardized pathological reports after surgery. Meanwhile, it can evaluate the scope of intraoperative lymph node dissection, the safety of cutting edge, and the standardization of surgery (principle of en-bloc dissection), which is an important means of surgical quality control. It also provides accurate research samples for further research and is an important way for young surgeons to train their clinical skills. The surgical management of postoperative specimens for gastric cancer needs to be standardized, including specimen processing personnel, processing flow, resection margin examination, lymph node sorting, measurement after specimen dissection, storage of biological specimens, documentation of recorded data, etc. The promotion of standardized surgical management of specimens after radical gastrectomy can promote the homogenization of gastric cancer surgical diagnosis and treatment in medical institutions and further promote the high-quality development of gastric cancer surgery in China.


Subject(s)
Gastrectomy , Humans , Laparoscopy , Lymph Node Excision , Lymph Nodes/surgery , Stomach Neoplasms/surgery
17.
Article in Chinese | WPRIM | ID: wpr-936060

ABSTRACT

Objective: To compare the clinical efficacy and quality of life between uncut Roux-en-Y and Billroth II with Braun anastomosis in laparoscopic distal gastrectomy for gastric cancer patients. Methods: A retrospective cohort study was performed. Inclusion criteria: (1) 18 to 75 years old; (2) gastric cancer proved by preoperative gastroscopy, CT and pathological results and tumor was suitable for D2 radical distal gastrectomy; (3) postoperative pathological diagnosis stage was T1-4aN0-3M0 (according to the AJCC-7th TNM tumor stage), and the margin was negative; (4) Eastern Cooperative Oncology Group (ECOG) physical status score <2 points, and American Association of Anesthesiologists (ASA) grade 1 to 3; (5) no mental illness; (6) able to answer questionnaires independently; (7) patients agreed to undergo laparoscopic distal gastrectomy and signed an informed consent. Exclusion criteria: (1) patients with severe chronic diseases and American Association of Anesthesiologists (ASA) grade >3; (2) patients with other malignant tumors; (3) patients suffered from serious mental diseases; (4) patients received neoadjuvant chemotherapy or immunotherapy. According to the above criteria, clinical data of 200 patients who underwent laparoscopic distal gastrectomy at the Department of General Surgery of the First Affiliated Hospital of Army Medical University from January 2016 to December 2019 were collected. Of the 200 patients, 108 underwent uncut Roux-en-Y anastomosis and 92 underwent Billroth II with Braun anastomosis. The general data, intraoperative and postoperative conditions, complications, and endoscopic evaluation 1 year after the surgery were compared. Besides, the quality of life of two groups was also compared using the Chinese version of the European Organization For Research and Treatment of Cancer (EORTC) quality of life questionnaire-Core 30 (QLQ-C30) and quality of life questionnaire-stomach 22 (QLQ-STO22). Results: There were no significant differences in baseline data between the two groups (all P>0.05). All the 200 patients successfully underwent laparoscopic distal gastrectomy without intraoperative complications, conversion to open surgery or perioperative death. There were no significant differences between two groups in operative time, intraoperative blood loss, postoperative complications, time to flatus, time to removal of gastric tube, time to liquid diet, time to removal of drainage tube or length of postoperative hospital stay (all P>0.05). Endoscopic evaluation was conducted 1 year after surgery. Compared to Billroth II with Braun group, the uncut Roux-en-Y group had a significantly lower incidences of gastric stasis [19.8% (17/86) vs. 37.0% (27/73), χ(2)=11.199, P=0.024], gastritis [11.6% (10/86) vs. 34.2% (25/73), χ(2)=20.892, P<0.001] and bile reflux [1.2% (1/86) vs. 28.8% (21/73), χ(2)=25.237, P<0.001], and the differences were statistically significant. The EORTC questionnaire was performed 1 year after surgery, there were no significant differences in the scores of QLQ-C30 scale between the two groups (all P>0.05), while the scores of QLQ-STO22 showed that, compared to the Billroth II with Braun group, the uncut Roux-en-Y group had a lower pain score (median: 8.3 vs. 16.7, Z=-2.342, P=0.019) and reflux score (median: 0 vs 5.6, Z=-2.284, P=0.022), and the differences were statistically significant (all P<0.05), indicating milder symptoms. Conclusion: The uncut Roux-en-Y anastomosis is safe and reliable in laparoscopic distal gastrectomy, which can reduce the incidences of gastric stasis, gastritis and bile reflux, and improve the quality of life of patients after surgery.


Subject(s)
Adolescent , Adult , Aged , Anastomosis, Roux-en-Y/adverse effects , Anastomosis, Surgical/adverse effects , Gastrectomy/methods , Gastroenterostomy/adverse effects , Humans , Laparoscopy/methods , Middle Aged , Postoperative Complications/epidemiology , Quality of Life , Retrospective Studies , Stomach Neoplasms/pathology , Treatment Outcome , Young Adult
18.
Article in Chinese | WPRIM | ID: wpr-936059

ABSTRACT

Objective: To explore the differences of short-term outcomes and quality of life (QoL) for gastric cancer patients between totally laparoscopic total gastrectomy using an endoscopic linear stapler and laparoscopic-assisted total gastrectomy using a circular stapler. Methods: A retrospective cohort study was conducted. Clinicopathological data of patients with stage I to III gastric adenocarcinoma who underwent laparoscopic total gastrectomy from January 2017 to January 2020 were retrospectively collected. Those who were ≥80 years old, had serious complications that could affect the quality of life, underwent multi-organ resections, palliative surgery, emergency surgery due to gastrointestinal perforation, obstruction, bleeding, died or lost to follow-up within 1 year after surgery were excluded. A total of 130 patients were enrolled and divided into circular stapler group (CS group, 77 cases) and linear stapler group (LS group, 53 cases) according to the surgical method. The differences of age, gender, body mass index, number of comorbidities, history of abdominal surgery, ASA, tumor location, degree of differentiation, tumor length, tumor T stage, tumor N stage, tumor pathological stage and preoperative quality of life between the two groups were not statistically significant (all P>0.05). The observation indicators: (1) Surgery and postoperative conditions. (2) Postoperative complications: Any adverse conditions that require conservative treatment or surgical intervention after surgery were defined as postoperative complications, of which, complications occurring within 30 days after surgery were defined as early complications; complications occurring within 30 days to 1 year after surgery were defined as late complications. (3) Postoperative quality of life was assessed by the quality of life core scale (QLQ-C30) and gastric cancer specific module scale (QLQ-STO22). The higher the scores of functional scales and global health status, the better the corresponding quality of life. The higher the scores of symptoms scales, the worse the corresponding quality of life. Results: (1) Surgery and postoperative conditions: Compared with the CS group, the LS group presented less intraoperative blood loss [50.0 (50.0-100.0) ml vs. 100.0 (100.0-100.0) ml, Z=-3.111, P=0.002] and earlier time to flatus [(3.1±0.8) days vs. (3.5±1.1) days, t=-2.490, P=0.014]. However, there were no statistically significant differences between two groups of patients in terms of operation time, time to start a liquid diet and postoperative hospital stay (all P>0.05). (2) Postoperative complications: The early complication rates of the CS group and the LS group were 22.1% (17/77) and 18.9% (10/53), respectively, while the late complication rate were 18.2% (14/77) and 15.1% (8/53), respectively, whose differences were not statistically significant (all P>0.05). (3) Postoperative quality of life: After 1-year follow-up, 7 (5.4%) patients were lost, including 5 in CS group and 2 in LS group. One year after operation, the QLQ-C30 scale showed that the score of financial difficulty of the LS group was significantly higher than that of the CS group [33.3 (0 to 33.3) vs.0 (0 to 33.3), Z=-1.972, P=0.049] with statistically significant difference, and there were no statistically significant differences in the scores of other functional fields and symptom fields between the two groups (all P>0.05). The QLQ-STO22 scale showed that the scores of dysphagia [0 (0 to 5.6) vs. 0 (0 to 11.1), Z=-2.094, P=0.036] and eating restriction were significantly lower [0 (0 to 4.2) vs. 0 (0 to 8.3), Z=-2.011, P=0.044] in patients of the LS group than those of the CS group. There were no significant differences in scores of other symptoms between two groups (all P>0.05). Conclusions: Compared with the circular stapler, the esophagojejunostomy with linear stapler for gastric cancer patients can reduce intraoperative blood loss, shorten the time to flatus after operation, alleviate the symptoms of dysphagia and eating restriction but increase the economic burden to a certain degree.


Subject(s)
Aged, 80 and over , Gastrectomy/methods , Humans , Laparoscopy/methods , Quality of Life , Retrospective Studies , Stomach Neoplasms/pathology , Treatment Outcome
19.
Article in Chinese | WPRIM | ID: wpr-936044

ABSTRACT

Objective: To explore the independent risk factors of lymph node metastasis (LNM) in early gastric cancer, and to use nomogram to construct a prediction model for above LNM. Methods: A retrospective cohort study was conducted. Inclusion criteria: (1) primary early gastric cancer as stage pT1 confirmed by postoperative pathology; (2) complete clinicopathological data. Exclusion criteria: (1) patients with advanced gastric cancer, stump gastric cancer or history of gastrectomy; (2) early gastric cancer patients confirmed by pathology after neoadjuvant chemotherapy; (3) other types of gastric tumors, such as lymphoma, neuroendocrine tumor, stromal tumor, etc.; (4) primary tumors of other organs with gastric metastasis. According to the above criteria, 1633 patients with early gastric cancer who underwent radical gastrectomy at the Department of General Surgery of the Chinese PLA General Hospital First Medical Center from December 2005 to December 2020 were enrolled as training set, meanwhile 239 patients with early gastric cancer who underwent gastrectomy at the Department of General Surgery of the Chinese PLA General Hospital Fourth Medical Center from December 2015 to December 2020 were enrolled as external validation set. Risk factors of LNM in early gastric cancer were identified by using univariate and multivariate logistic regression analyses. A nomogram prediction model was established with significant factors screened by multivariate analysis. Area under the receiver operating characteristic curve (AUC) was used for assessing the predictive value of the model. Calibration curve was drawn for external validation. Results: Among 1633 patients in training set, the mean number of retrieved lymph nodes was 20 (13-28), and 209 patients (12.8%) had lymph node metastasis. Univariate analysis showed that gender, resection range, tumor location, tumor morphology, lymph node clearance, vascular invasion, lymphatic cancer thrombus, tumor length, tumor differentiation, microscopic presence of signet ring cells and depth of tumor invasion were associated with LNM (all P<0.05). Multivariate analysis revealed that females, tumor morphology as ulcer type, vascular invasion, lymphatic cancer thrombus, tumor length≥3 cm, deeper invasion of mucosa, and poor differentiation were independent risk factors for LNM in early gastric cancers (all P<0.05). Receiver operating characteristic curve indicated that AUC of training set was 0.818 (95%CI: 0.790-0.847) and AUC of external validation set was 0.765 (95%CI: 0.688-0.843). The calibration curve showed that the LNM probability predicted by nomogram was consistent with the actual situation (C-index: 0.818 in training set and 0.765 in external validation set). Conclusions: Females, tumor morphology as ulcer type, vascular invasion, lymphatic cancer thrombus, tumor length≥3 cm, deeper invasion of mucosa and poor differentiation are independent risk factors for LNM of early gastric cancer. The establishment of a nomogram prediction model for LNM in early gastric cancer has great diagnostic value and can provide reference for treatment selection.


Subject(s)
Female , Gastrectomy , Humans , Lymph Node Excision , Lymph Nodes , Lymphatic Metastasis , Nomograms , Retrospective Studies , Risk Factors , Stomach Neoplasms/surgery
20.
Chinese Journal of Oncology ; (12): 99-103, 2022.
Article in Chinese | WPRIM | ID: wpr-935188

ABSTRACT

Objective: To describe the epidemic characteristics of stomach cancer mortality in Qidong between 1972 and 2016. Methods: The cancer registry data of stomach cancer death and population during 1972-2016 in Qidong was collected. The mortality of crude rate (CR), China age-standardized rate (CASR), world age-standardized rate (WASR), 35-64 years truncated rate, 0-74 years cumulative rate, cumulative risk, percentage change (PC), annual percent change (APC) were calculated. Results: During 1972-2016, a total of 15 863 (male: 10 114, female: 5 749) deaths occurred attributed to stomach cancer, accounting for 16.04% of all cancers, with CR of 31.37/100 000 (CASR: 12.97/100 000, WASR: 21.39/100 000). The truncated rate of 35-64, cumulative rate of 0-74, and cumulative risk were 28.86/100 000, 2.54%, and 2.51%, respectively. For male, the CR, CASR, WASR were 40.53/100 000, 17.98/100 000, 30.13/100 000, respectively, and for female, the CR, CASR, WASR were 22.45/100 000, 8.52/100 000, 13.92/100 000, respectively. Age-specific mortality analysis showed that the mortality of each age group under 25-year-old group was less than 1/100 000. The CR increased with age. The 50-year-old group reached and exceeded the average mortality of the population, and more than 80-year-old group reached the peak of death. During 1972-2016 in Qidong, The PCs in CR, CASR, and WASR of stomach cancer were 55.43%, -52.02%, -43.60%. The APC were 0.54%, -2.30%, -2.08%, respectively. Period mortality analysis showed that except for the 75-year-old group, the mortality of stomach cancer decreased significantly. Conclusions: The crude mortality of stomach cancer increases slightly in Qidong, while the CASR and WASR decrease significantly. However, stomach cancer is still one of the malignant tumors that most affect health and seriously threat lives.


Subject(s)
Adult , Aged , Aged, 80 and over , China/epidemiology , Female , Humans , Incidence , Male , Middle Aged , Registries , Stomach Neoplasms/epidemiology
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