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Introduction: Radical resection is the only potentially curative treatment for pancreatic adenocarcinoma; however, only a minor fraction of patients are eligible for resection. Induction therapy may be offered to patients, but the response rate in cases with significant vascular involvement is limited. This study aimed to evaluate the efficacy and safety of modified of FOLFIRINOX chemotherapy (mFFX) + stereotactic body radiotherapy (SBRT) in combination as induction therapy for locally advanced pancreatic carcinoma. The primary endpoints were the resection rate and one-year overall survival (OS). The secondary endpoints were progression-free survival (PFS), toxicity, and quality of live (QoL). Material and methods: Thirty patients with locally advanced pancreatic adenocarcinoma were treated with 6 cycles of mFFX, followed by SBRT and additional 3 cycles of mFFX. The response was measured prior to SBRT and after regimen completion. In the absence of disease progression, the patients were referred for surgery. The patients were requested to complete quality of life questionnaires (QLQ)-C30 and QLQ-PAN26 questionnaires biweekly. Results: On the first evaluation, disease control was noted in 26 (86.7%) patients. Stereotactic body radiotherapy was performed in 20 patients. Twelve patients underwent laparotomy, with radical resection possible in 3 cases. The one-year OS rate was 63.3%. Overall, 11 grade ≥ 3 adverse events were noted. No deterioration in the overall QoL was observed. The median PFS was 7.53 months. Conclusions: The expected resection rate of ≥ 30% was not achieved. However, the combination was associated with good local control, low adverse event rate, and good QoL, which advocate its further investigation in this clinical situation.
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AIM OF THE STUDY: Metastases from renal cell carcinoma represent between 0.25% and 3.00% of all resected pancreatic tumours. The aim of this study was to review 13 patients with renal cell carcinoma metastatic to the pancreas. MATERIAL AND METHODS: Clinical data, time from initial presentation, operative outcome, long-term survival, tumour size, presence of lymphatic invasion, and surgical margin status were evaluated. RESULTS: The median age of the patients was 62 years (mean 60.9). The median time for appearance of metastatic disease following resection of the primary tumour was 9 years (mean 8.38). Pancreatic metastases were located in the head of the pancreas in four patients, in the body in three, in the tail in two patients, and four patients had multiple pancreatic localisations. Four (30.7%) pancreatoduodenectomies, 5 (38.5%) distal resections, 2 (15.3%) total pancreatectomies, 1 (7.6%) enucleation, and 1 (7.6%) Roux duodenojejunostomy were performed. Two patients (15.3%) had postoperative complications. Operative mortality was 0%. Surgical margins were microscopically positive in 1 (8.3%) patient, and lymph nodes were positive in 2 (16.6%) patients. In our group of 7 deceased patients the mean survival was 19 months (median 16 months). CONCLUSIONS: Renal cell carcinoma metastatic to the pancreas can occur several years after nephrectomy. In our series a large number of patients with occurrence of symptoms, advancement of tumours, metastases to lymph node, and positive margin were connected with short survival period. Early detection of primary tumour, long and thorough patient care, and radical resections give patients a chance for a prolonged life.
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BACKGROUND: The aim of this study was to evaluate the efficacy of a compression anastomosis clip (CAC) for gastrojejunostomy and comparison of a novel technique with a hand-sewn anastomosis. METHODS: Sixty-six patients underwent gastrojejunostomy with the CAC or hand-sewn anastomosis. The time of bowel function recovery, the duration of nasogastric drainage, the time of initiation of oral feeding, the duration of postoperative hospital stay, the time needed to expel the clip, and the observation of any complications were recorded. RESULTS: Neither group had anastomotic complications such as leakage or obstruction. Anastomosis time was shorter in the CAC group than in the control group (P < 0.01). The mean time of clip expulsion was 15.1 ± 6.04 d. There was no statistical difference in postoperative results between the two groups. There was a moderate positive correlation between the day of first bowel movement and the day of clip expulsion (r = 0.536) and a strong correlation between the duration of nasogastric drainage and the day of clip expulsion (r = 0.881). CONCLUSIONS: The method of using a CAC appeared to be safe, easy, inexpensive, and less time consuming. It should be taken into consideration that intra-abdominal complications may cause delayed CAC expulsion.
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Derivação Gástrica/instrumentação , Níquel , Neoplasias Pancreáticas/cirurgia , Pancreatite Crônica/cirurgia , Instrumentos Cirúrgicos , Titânio , Adulto , Idoso , Anastomose Cirúrgica/instrumentação , Anastomose Cirúrgica/métodos , Fístula Anastomótica , Desenho de Equipamento , Feminino , Derivação Gástrica/métodos , Humanos , Complicações Intraoperatórias , Masculino , Pessoa de Meia-Idade , Pressão , Infecção da Ferida Cirúrgica , Técnicas de SuturaRESUMO
The aim of the study was to present a clinical use of compression anastomosis clip (CAC) implants made of shape memory materials--nickel titanium alloys (NiTi). The concept involved in the use of CAC was to compress 2 bowel walls together, cause necrosis, and detach the CAC from the tissue to be expelled with the stool. The CAC is a double-ring elliptical device with a diameter of 30 mm. The device has the ability to recover its original closed shape when it senses a change in ambient temperature. In all, 20 anastomoses using CACs were performed: 6 of the small with the large bowel and 14 between the small bowel and small bowel. Two patients experienced complications. Although the anastomosis is not difficult to perform, the rules on how to apply the CAC must be well known. Because only a small number of anastomoses have been performed by us to date, this procedure requires further study.
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Anastomose Cirúrgica/instrumentação , Intestinos/cirurgia , Níquel , Suturas , Titânio , Adulto , Idoso , Anastomose Cirúrgica/métodos , Engenharia Biomédica , Desenho de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND/AIMS: Analysis of cystic fluid may be useful in distinguishing between benign and malignant cysts which has significant impact on their management. The aim of our study was to assess the diagnostic utility of carcinoembryonic antigen (CEA) and K-ras gene mutation in pancreatic cysts fluid. METHODS: The study included 56 patients with pancreatic cystic fluid collected for analysis. The cysts were classified as benign (simple cysts, pseudocysts, serous cystadenoma) - 39 patients or premalignant/malignant (mucinous cystadenoma, IPMN, cystadenocarcinoma) - 17 patients. The patients history, CEA fluid concentrations and presence of K-ras mutation were analyzed. RESULTS: CEA were higher in patients with malignant cysts (mean levels 238 ± 12.5 ng/ml; range 32.8-4985 ng/ml) compared to benign lesions (mean levels 34.5 ± 3.7 ng/ml; range 3.9-693 ng/ml; p < 0.001). K-ras mutation correctly classified 11 of 17 patients with premalignant/malignant lesions. It was also detected in 1 patient with final diagnosis of benign cyst (the sensitivity 64.7% and the specificity 97.4%; p < 0.01). If CEA and molecular analysis were combined in that cysts with either CEA level>45 ng/ml or presence of K-ras mutation, than 16 of 17 premalignant/malignant cysts were correctly identified (94.1%). CONCLUSION: Molecular analysis of pancreatic cyst fluid adds diagnostic value to the preoperative diagnosis and should be considered when cyst cytologic examination is negative for malignancy.
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Líquido Cístico/química , Genes ras/genética , Cisto Pancreático/genética , Adulto , Idoso , Antígeno Carcinoembrionário/análise , Cistadenocarcinoma/genética , Cistadenocarcinoma Mucinoso/genética , Cistadenoma Mucinoso/genética , Cistadenoma Seroso/genética , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pâncreas/química , Neoplasias Pancreáticas/genética , Pseudocisto Pancreático/genética , Lesões Pré-Cancerosas/genéticaRESUMO
BACKGROUND: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal neoplasms located in the alimentary tract. Our aim was to assess the influence of prognostic factors on survival in patients surgically treated for GISTs. STUDY: One hundred and five patients treated between January 1989 and December 2008 were available for study. A retrospective analysis of prognostic factors (age, gender, mitotic index, tumor location, tumor size, risk of malignant behavior, and coexisting other neoplasm) was performed. Univariate and multivariate survival analyses were undertaken. RESULTS: Univariate analyses revealed the importance of patient gender (p = 0.007), disease location (p = 0.055), mitotic index (p = 0.054) and coexistence with other neoplasms (p = 0.004). However, multivariate analysis showed 3 independently statistically significant factors: coexistence with other neoplasm (RR = 3.53, p = 0.004), male gender (RR = 2.60, p = 0.011) and mitotic index ≥10/50 HPF, (RR = 2.60, p = 0.042). CONCLUSIONS: Our study has shown that male gender, a high mitotic index ≥10/50 HPF, and coexistence with other malignant neoplasms were independent poor prognostic factors in patients with GIST. The presence of middle or lower gut disease location leads to an increased risk of mortality when compared with the upper gut.
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Neoplasias Gastrointestinais/mortalidade , Neoplasias Gastrointestinais/cirurgia , Tumores do Estroma Gastrointestinal/mortalidade , Tumores do Estroma Gastrointestinal/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Adulto JovemRESUMO
Serous neoplasms (SN) of the pancreas account for 1-2% of all pancreatic tumours. Six morphological variants of SN were previously recognized: serous microcystic (cyst)adenoma, serous macrocystic (cyst)adenoma, von Hippel-Lindau-associated serous cystic neoplasm, solid serous adenoma/neoplasm, mixed serous-neuroendocrine neoplasm and serous cystadenocarcinoma. It was recently postulated that SN shows a continuous spectrum of morphological patterns rather than distinct clinico-pathological subtypes. To address this issue, we performed a detailed review of 40 SN cases diagnosed at our institution between 1989 and 2011. We found 11 cases of serous microcystic (cyst)adenoma, 5 cases of serous macrocystic (cyst)adenoma, and a single case of von Hippel-Lindau-associated serous cystic neoplasm. Apart from that, we found 20 cases of SN which showed features of both microcystic and macrocystic (cyst)adenomas, 2 cases of small 'incipient' SN and a single case of a mixed microcystic and solid adenoma. In conclusion, we showed that 'borderline' lesions among SNs truly exist and are not rare. The reason for such a wide diversity of morphological patterns of SN remains unknown.
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Adenoma/patologia , Carcinoma Neuroendócrino/patologia , Cistadenocarcinoma Seroso/patologia , Neoplasias Pancreáticas/patologia , Doença de von Hippel-Lindau/patologia , Adenoma/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Neuroendócrino/cirurgia , Cistadenocarcinoma Seroso/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/cirurgia , Doença de von Hippel-Lindau/cirurgiaRESUMO
BACKGROUND: Neopterin and tissue polypeptide-specific antigen (TPS) have been suggested to be useful in differential diagnosis between pancreatic adenocarcinoma (PA) and chronic pancreatitis (CP). The aim of our study was to compare the clinical usefulness of CA19-9, neopterin and TPS serum levels in patients with PA and CP. METHODS: The study included 85 patients with PA, 72 with CP and 50 healthy controls. The serum concentrations of neopterin, TPS and CA19-9 were measured (DRG International, USA). The associations of the analyzed markers and clinical data at diagnosis have been evaluated. RESULTS: Serum levels of neopterin, TPS and CA19-9 were higher in PA patients compared to CP (p < 0.001). TPS and CA19-9 levels were also elevated in patients with CP compared to the control group (p < 0.001). In contrast, there was no difference between neopterin serum levels in CP patients and the control group (p > 0.05). Neopterin showed the best sensitivity and specificity (91.8 and 87.5%) in PA diagnosis compared to CA19-9 (respectively 83.5 and 75%) and TPS (75.3 and 65.3%). CONCLUSION: Our results indicate that neopterin may be potentially useful in differential diagnosis between PA and CP. Assessment of TPS probably adds no significant information to that obtained with CA19-9 and neopterin. and IAP.
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Adenocarcinoma/sangue , Biomarcadores Tumorais/sangue , Antígeno CA-19-9/sangue , Neopterina/sangue , Neoplasias Pancreáticas/sangue , Pancreatite Crônica/sangue , Peptídeos/sangue , Adenocarcinoma/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/diagnóstico , Pancreatite Crônica/diagnóstico , Valor Preditivo dos Testes , Curva ROC , Adulto JovemRESUMO
There are a few studies concerning epidemiology of pancreatic ductal adenocarcinoma (PDAC) in the Polish population. Analysis of age distribution patterns of patients with different types of cancer may be useful for studying their specific biology. In the present study we aimed to describe age distribution patterns of 580 patients with PDAC diagnosed in one centre during a 25-year period. All the histopathological diagnoses were re-reviewed using current histopathological diagnostic criteria. Age distributions of selected subpopulations of patients (defined based on gender, potential tumour resectability and type of the surgery) were compared using mean values, medians, age frequency density plots and logarithmic plots of age-specific frequencies. The mean and median values of patients' age were 60.8 y and 61.0 y, respectively. Females were approximately 2 y older than males at the time of PDAC diagnosis. Females with non-resectable PDAC were approximately 2 y older than females with resectable tumours. Mean age values of males with non-resectable and resectable PDAC were similar. Patients treated with pancreaticoduodenectomy were approximately 2 y older than patients undergoing other types of resections. Age distribution density plots showed that some subgroups of patients studied were somewhat heterogeneous and might include several yet poorly recognized clinico-pathological entities. Logarithmic plots of age-specific frequencies showed that PDAC epidemiology is in concordance with a multistage theory of carcinogenesis. PDAC is an age-dependent cancer. Single-institutional pathology-oriented cancer epidemiological databases may add some information to population-based cancer registries.
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Carcinoma Ductal Pancreático/epidemiologia , Neoplasias Pancreáticas/epidemiologia , Adulto , Distribuição por Idade , Idade de Início , Idoso , Idoso de 80 Anos ou mais , Carcinoma Ductal Pancreático/diagnóstico , Carcinoma Ductal Pancreático/secundário , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pancreatectomia , Neoplasias Pancreáticas/diagnóstico , Polônia/epidemiologia , Adulto JovemRESUMO
INTRODUCTION: Malnutrition is a common problem in hospitalised patients. The immunological, inflammatory, and nutritional status of patients significantly influences the postoperative outcome. AIM: To assess and analyse the influence of the nutritional status on postoperative complications in patients following distal pancreatectomy. MATERIAL AND METHODS: The analysis included 50 patients operated in a large centre of gastrointestinal surgery. The clinicopathological parameters were analysed, and the nutritional status was assessed. The prognostic nutritional index (PNI) was calculated as 10 × serum albumin (g/dl) + 0.005 × total lymphocyte count (per mm3). The immunological parameters, neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), and lymphocyte/monocyte ratio (LMR) were calculated. Patients were divided into two groups according to the presence of early postoperative complications: those without postoperative complications and those with postoperative complications. RESULTS: Early postoperative complications were observed in 15 (30.0%) patients undergoing distal pancreatectomy. Postoperative pancreatic fistula (POPF) was the most frequent complication noted in 11 (22%) patients. Significantly higher Nutritional Risk Screening (NRS) 2002 (p = 0.005) and lower PNI (median value: 56 vs. 41, p = 0.0003) were noted in patients with postoperative complications. In laboratory results, the significantly lower total lymphocyte count (median value: 2.4 vs. 1.4 per mm3, p = 0.01) and serum level of albumin (median value: 4.7 vs. 3.3 g/dl, p = 0.0003) were noted in the complications group. CONCLUSIONS: Nutritional status significantly influences the incidence of postoperative complications in patients following distal pancreatectomy. Assessment of nutritional status using PNI calculation should be the standard management of patients before surgical treatment.
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These recommendations refer to the current management in pancreatic ductal adenocarcinoma (PDAC), a neoplasia characterised by an aggressive course and extremely poor prognosis. The recommendations regard diagnosis, surgical, adjuvant and palliative treatment, with consideration given to endoscopic and surgical methods. A vast majority of the statements are based on data obtained in clinical studies and experts' recommendations on PDAC management, including the following guidelines: International Association of Pancreatology/European Pancreatic Club (IAP/EPC), American Society of Clinical Oncology (ASCO), European Society for Medical Oncology (ESMO), National Comprehensive Cancer Network (NCCN) and Polish Society of Gastroenterology (PSG) and The National Institute for Health and Care Excellence (NICE). All recommendations were voted on by members of the Working Group of the Polish Pancreatic Club. Results of the voting and brief comments are provided with each recommendation.
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Pancreatic endocrine tumors (PETs) are rare neoplasms of this organ. The majority of PETs are tumors without hormonal activity. In this publication, we present the diagnostic and therapeutic guidelines for the management of these tumors proposed by the Polish Network of Neuroendocrine Tumors. These guidelines refer to biochemical and location diagnostics, including scintygraphy of somatostatin receptors, endoscopic ultrasonography and other anatomical and functional imaging methods. High importance is attached to correct histopathological diagnosis which determines further management of patients with PETs. Antitumor therapy requires multidirectional procedure, and therefore the rules of surgical treatment, biotherapy, chemotherapy and peptide receptor radionuclide therapy are discussed.
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Tumores Neuroendócrinos/diagnóstico , Tumores Neuroendócrinos/terapia , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/terapia , Guias de Prática Clínica como Assunto , Biomarcadores Tumorais/análise , Competência Clínica , Endossonografia/métodos , Humanos , Estadiamento de Neoplasias , Exame Físico , Polônia , Fatores de Risco , SomatostatinaRESUMO
Sutures are the most versatile materials used in surgery. Despite recent technological advances and availability of novel materials such as tissue cements, it appears that surgical sutures will continue to be used for many years to come. The objective of this study was to provide an overview of the most common absorbable sutures used in general surgery. The appropriate suture choice for a particular procedure is of key importance for the success of that procedure.
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Dioxanos/normas , Cirurgia Geral/normas , Polidioxanona/normas , Poliésteres/normas , Poliglactina 910/normas , Guias de Prática Clínica como Assunto , Suturas , Feminino , Humanos , MasculinoRESUMO
INTRODUCTION: We undertook a comparative survey of gastric emptying (GE) kinetics after two variants of bypass surgery for upper bowel obstruction. MATERIAL & METHODS: In 10 dogs with experimental upper bowel obstruction, five were randomized to obtain gastrojejunal anastomosis (GA), and the other five received Roux-en-Y duodenojejunal anastomosis (DA). Duplicate scintigraphic measurements of GE of a solid meal were accomplished in every animal before surgery and during the early (2-3 weeks), medium (3 months), and late (6 months) post-operative period. The GE curves were fitted with a power-exponential function to derive the GE half time T½, and the curve shape parameter S. RESULTS: Early after surgery T½ slightly decreased by -18±21 min in the DA group and lengthened by 91±37 min in the GA group (p = 0.042). In both groups an increase in the S parameter was found then. In either group T½ gradually declined towards the basal value during the medium and late post-operative period. On the other hand, net differences relative to the basal situation in the S values appeared to be positive in the GA group (0.32±0.11 at 3 months; 0.64±0.19 at six months), and negative in the DA group (-0.30±0.09 at 3 months; -0.01±0.20 at six months). Hence a statistically significant contrast was found between those differences: p = 0.0022 at 3 months, and p = 0.045 at six months after the surgery. CONCLUSION: Roux-en-Y duodenojejunal anastomosis appears to be superior to the classical gastrojejunal anastomosis while restoring patency of the gastrointestinal passage in the case of upper bowel obstruction.
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Anastomose em-Y de Roux , Duodeno , Derivação Gástrica , Esvaziamento Gástrico , Estômago , Animais , Cães , Duodeno/fisiopatologia , Duodeno/cirurgia , Distribuição Aleatória , Estômago/fisiopatologia , Estômago/cirurgiaAssuntos
Biomarcadores Tumorais/análise , Carcinoma de Células Renais/metabolismo , Neoplasias Renais/metabolismo , Mucina-1/biossíntese , Neoplasias Pancreáticas/metabolismo , Idoso , Carcinoma de Células Renais/secundário , Feminino , Humanos , Imuno-Histoquímica , Neoplasias Renais/patologia , Masculino , Pessoa de Meia-Idade , Mucina-1/análise , Neoplasias Pancreáticas/secundárioRESUMO
The aim of this study was to assess short-term outcomes of surgical treatment of pancreatic cystic tumors (PCTs). MATERIAL AND METHODS: We retrospectively reviewed medical records of 46 patients (31 women and 15 men) who had undergone surgery for pancreatic cystic tumors in our department. RESULTS: Pancreatic cystic tumors were located within the pancreatic head (21), body (11), tail (13), and whole pancreas (1). The following surgical procedures were performed: pancreatoduodenectomy (20), central pancreatectomy (9), distal pancreatectomy (3), distal pancreatectomy with splenectomy (3), distal extended pancreatectomy with splenectomy (2), total pancreatectomy (1), duodenum preserving pancreatic head resection (1), local tumor resection (4), and other procedures (2). Histopathological tumor types were as follows: serous cystadenoma (14), intraductal papillary mucinous adenoma (5), intraductal papillary mucinous carcinoma (5), solid pseudopapillary tumor (5), mucinous cystadenoma (5), mucinous cystadenoma with border malignancy (1), mucinous cystadenocarcinoma (2), adenocarcinoma (4), and other tumors (5). Early postoperative complications were observed in 14 (30.43%) patients. Reoperations were performed in 9 (19.56%) patients. The perioperative mortality rate was 6.52%. CONCLUSIONS: Serous cystadenoma was the most common pancreatic cystic tumor in the analyzed group. PCTs were most frequently located within the pancreatic head. Pancreatic resection was possible in most patients, and pancreatoduodenectomy was the most common pancreatic resection type.
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Cistadenoma Mucinoso/cirurgia , Cistadenoma Seroso/cirurgia , Pâncreas/patologia , Cistadenoma Mucinoso/patologia , Cistadenoma Seroso/patologia , Feminino , Humanos , Masculino , Pancreatectomia/métodos , Cisto Pancreático/patologia , Pancreaticoduodenectomia , Polônia , Estudos Retrospectivos , Resultado do TratamentoRESUMO
Anastomotic leak in the gastrointestinal tract is one of the most important complications of resection. They are the main cause of reoperation, their occurrence worsens the prognosis of the patient, increasing the proportion of direct mortality, as well as being a significant risk factor for recurrence of cancer. The risk of leaks within the gastrointestinal tract is greatly varied, depending on the location and extent of the resection, but also on patient, disease or a surgical procedure, including surgeon. To determine the potential risk of leakage can be significant for introduction some prophylactic actions. Some of them have the character of general recommendations, as proper nutrition of the patient in the perioperative period, while another part is directly connected to the surgical procedure. The second group includes protective stoma, the use of tissue glues, insertion transrectal drain for rectal anastomosis decompression, the use of stents or the use of collagen matrix coated with fibrinogen and thrombin. Important to reduce the proportion of leaks can be more precise and targeted prophylactic recommendations, based on the individualized determination of risk factors leaks. Further research for this purpose are necessary for this purpose, the big hope can be associated with data obtained through mobile applications.
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Fístula Anastomótica/prevenção & controle , Colo/cirurgia , Adesivo Tecidual de Fibrina/uso terapêutico , Fibrinogênio/uso terapêutico , Adesivos Teciduais/uso terapêutico , Anastomose Cirúrgica/métodos , Feminino , Humanos , Masculino , Complicações Pós-Operatórias/prevenção & controleRESUMO
This paper presents the updated Polish Neuroendocrine Tumour Network expert panel recommendations on the management of neuroendocrine neoplasms (NENs) of the stomach and duodenum, including gastrinoma. The recommendations discuss the epidemiology, pathogenesis, and clinical presentation of these tumours as well as their diagnosis, including biochemical, histopathological, and localisation diagnoses. The principles of treatment are discussed, including endoscopic, surgical, pharmacological, and radionuclide treatments. Finally, there are also recommendations on patient monitoring.