Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 18 de 18
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
World J Surg Oncol ; 11(1): 194, 2013 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-23945398

RESUMO

BACKGROUND: The aim of this study was to evaluate the recurrence pattern after skin-sparing mastectomy (SSM) and immediate breast reconstruction (IBR) using transverse rectus abdominis musculocutaneous (TRAM) flap in patients with invasive breast cancer. METHODS: From 1995 to 2010, patients with invasive breast cancer who underwent SSM followed by IBR using TRAM flap were retrospectively reviewed. The pattern of the first recurrence event was recorded. RESULTS: We identified 249 consecutive patients with invasive breast cancer, two-thirds of whom (67.1%) were diagnosed with stage II or stage III disease. During a median follow-up period of 53 months, three (1.2%) local, 13 (5.2%) regional, 34 (13.7%) distant, and five (2.0%) concurrent locoregional and distant recurrences were observed. The median time to recurrences was 26 months (range, 2 to 70 months) for all recurrences, 23 months (range, 2 to 64 months) for locoregional recurrences, and 26 months (range, 8 to 70 months) for distant recurrences. All local recurrent lesions were detectable by careful physical examination, and detection of local recurrence suggested the presence of distant metastasis (60.0%). In contrast to distant metastasis, the risk of locoregional recurrence did not increase significantly with an increase in disease stage. The 5-year overall, locoregional relapse-free, and distant relapse-free survival rates were 89.7%, 90.8%, and 81.6%, respectively. CONCLUSIONS: SSM followed by immediate reconstruction using TRAM flap is an oncologically safe procedure even in patients with advanced-stage disease. Detection of local recurrence is crucial and can be aided by a thorough physical examination.


Assuntos
Neoplasias da Mama/cirurgia , Mamoplastia , Mastectomia/efeitos adversos , Recidiva Local de Neoplasia/etiologia , Complicações Pós-Operatórias , Reto do Abdome/transplante , Retalhos Cirúrgicos , Adenocarcinoma Mucinoso/mortalidade , Adenocarcinoma Mucinoso/patologia , Adenocarcinoma Mucinoso/cirurgia , Adulto , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/mortalidade , Carcinoma Ductal de Mama/patologia , Carcinoma Ductal de Mama/cirurgia , Carcinoma Lobular/mortalidade , Carcinoma Lobular/patologia , Carcinoma Lobular/cirurgia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Invasividade Neoplásica , Recidiva Local de Neoplasia/diagnóstico , Recidiva Local de Neoplasia/mortalidade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
2.
Ann Surg ; 255(1): 8-17, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22104564

RESUMO

OBJECTIVE: To investigate the clinical efficacy of adjuvant interferon alfa-2b (IFNα-2b) therapy on recurrence-free survival (RFS) of patients with postoperative viral hepatitis-related hepatocellular carcinoma (HCC). BACKGROUND: Despite most individual trials have failed to meet their primary endpoint, recent pooled-data meta-analyses suggest that adjuvant IFN therapy may significantly reduce the incidence of recurrence in curatively ablated HCC. METHODS: Patients with curative resection of viral hepatitis-related HCC were eligible, and were stratified by underlying viral etiology and randomly allocated to receive either 53 weeks of adjuvant IFNα-2b treatment or observation alone. The primary endpoint of this study was RFS. RESULTS: A total of 268 patients were enrolled with 133 in the IFNα-2b arm and 135 in the control arm. Eighty percent of them were hepatitis B surface antigen seropositive. At a median follow-up of 63.8 months, 154 (57.5%) patients had tumor recurrence and 84 (31.3%) were deceased. The cumulative 5-year recurrence-free and overall survival rates of intent-to-treat cohort were 44.2% and 73.9%, respectively. The median RFS in the IFNα-2b and control arms were 42.2 (95% confidence interval [CI], 28.1-87.1) and 48.6 (95% CI, 25.5 to infinity) months, respectively (P = 0.828, log-rank test). Adjuvant IFNα-2b treatment was associated with a significantly higher incidence of leucopenia and thrombocytopenia. Thirty-four (24.8%) of treated patients required dose reduction, and 5 (3.8%) of these patients subsequently withdrew from therapy because of excessive toxicity. Adjuvant IFNα-2b only temporarily suppressed viral replication during treatment period. CONCLUSIONS: In this study, adjuvant IFNα-2b did not reduce the postoperative recurrence of viral hepatitis-related HCC. More potent antiviral therapy deserves to be explored for this patient population. This study is registered at ClinicalTrials.gov and carries the identifier NCT00149565.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/cirurgia , Hepatectomia , Interferon-alfa/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Antineoplásicos/toxicidade , Carcinoma Hepatocelular/mortalidade , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Quimioterapia Adjuvante , Intervalo Livre de Doença , Feminino , Seguimentos , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/mortalidade , Hepatite B Crônica/cirurgia , Humanos , Interferon alfa-2 , Interferon-alfa/toxicidade , Leucopenia/induzido quimicamente , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/prevenção & controle , Observação , Pacientes Desistentes do Tratamento , Proteínas Recombinantes/uso terapêutico , Proteínas Recombinantes/toxicidade , Taxa de Sobrevida , Taiwan , Trombocitopenia/induzido quimicamente , Resultado do Tratamento , Carga Viral , Replicação Viral/efeitos dos fármacos
3.
J Hepatol ; 50(5): 958-68, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19303160

RESUMO

BACKGROUND/AIMS: Hepatocellular carcinoma recurrence after curative treatment adversely influences clinical outcome. It is important to explore adjuvant therapies. This phase II/stage 1 multi-center, randomized trial investigated the safety, optimal dosage and preliminary efficacy of PI-88, a novel heparanase inhibitor, in the setting of post-operative recurrence of HCC according to a Simon's 2-stage design. METHODS: Three groups were included: one untreated arm (Group A) and two PI-88 arms (Group B: 160 mg/day; Group C: 250 mg/day). Treatment groups received PI-88 over nine 4-week treatment cycles, followed by a 12-week treatment-free period. Safety and optimal dosage were assessed. RESULTS: Overall, 172 patients were randomized and 168 were included in the intention-to-treat (ITT) population. Treatment-related adverse effects included cytopenia, injection site hemorrhage, PT prolongation, etc. Four serious adverse events were possibly related to PI-88 treatment. One (1.8%) group B patients and six (10.5%) group C had hepatotoxicity-related withdrawals. Among the ITT population, 29 patients (50%) in Group A, 35 (63%) in Group B, and 22 (41%) in Group C remained recurrence-free at completion. Calculated T(1) value suggested 160 mg/day treatment satisfied the criteria for the next stage of the trial. CONCLUSIONS: PI-88 at 160 mg/day is optimal and safe, and shows preliminary efficacy as an adjunct therapy for post-operative HCC.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/cirurgia , Inibidores Enzimáticos/uso terapêutico , Glucuronidase/antagonistas & inibidores , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/cirurgia , Oligossacarídeos/uso terapêutico , Adulto , Idoso , Quimioterapia Adjuvante , Terapia Combinada , Relação Dose-Resposta a Droga , Inibidores Enzimáticos/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/prevenção & controle , Oligossacarídeos/efeitos adversos , Resultado do Tratamento
4.
J Formos Med Assoc ; 107(8): 616-26, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18678545

RESUMO

BACKGROUND/PURPOSE: Hepatectomy remains the standard treatment for primary hepatocellular carcinoma (HCC). However, its role in the treatment of multinodular HCC (MNHCC) is unknown. METHODS: The study consisted of 599 patients undergoing curative hepatic resection for HCC between October 1990 and June 2006, in which 112 patients had MNHCC (tumor number > or = 2). The type of MNHCC was classified into: A, nodules involving one or two adjoining segments; B, large tumor with satellite nodules involving three or more segments; C, three or fewer nodules that are scattered in remote segments; and D, more than three separate tumors. Univariate and multivariate analyses were used to identify the prognostic factors related to postoperative survival. During the same period of time, and from our database of 178 patients with pathologically proven MNHCC who were undergoing nonsurgical multidisciplinary therapy, 48 patients with serum albumin level > or = 3.5 g/dL, total bilirubin < 2 mg/dL, tumor number < or = 3, and tumor size < or = 5 cm were compared with 38 patients with the same condition treated with hepatectomy, in which 16 received one-block resection and 22 underwent multiple-site resection. RESULTS: The overall 1-, 3- and 5-year survival rates for patients with single-tumor HCC and MNHCC were 88.0%, 69.2% and 58.4%, and 86.1%, 55.5% and 29.9%, respectively (p < 0.001). Alpha-fetoprotein > 400 ng/mL, total tumor size > 5 cm, largest tumor size > 5 cm, total tumor number > 3, microvascular invasion, non-A type MNHCC and multiple-site resection were poor prognostic factors for MNHCC in the hepatectomy group. Multivariate analysis revealed that only multiple-site hepatic resection was an independent adverse factor related to postoperative survival. In addition, patients who underwent one-block resection had significantly better survival compared with the nonsurgical group (p = 0.0016), but the multiple-site resection subgroup did not. CONCLUSION: The prognosis of MNHCC is poor in comparison with that of single-nodular HCC. Hepatectomy is the treatment of choice if the tumors can be removed by one-block resection and liver function reserve is acceptable.


Assuntos
Carcinoma Hepatocelular/cirurgia , Hepatectomia , Neoplasias Hepáticas/cirurgia , Adulto , Idoso , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Feminino , Humanos , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/cirurgia , Prognóstico
5.
World J Gastroenterol ; 13(26): 3645-8, 2007 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-17659720

RESUMO

Inflammatory myofibroblastic tumor (IMT) of the alimentary tract often occurs in children or young adults, but may occur at any age. Symptoms are nonspecific and depend on the location of the tumor. The most often involved sites are small bowel mesentery especially the distal ileum, mesotransverse colon, or great omentum. Recurrence appears to be more frequent in the extrapulmonary lesion. Herein we demonstrate a 63-year-old male patient with mesenteric IMT, with an early recurrence after his first operation. We should be aware that if the tumor is larger than 8 cm, multinodular, omental, with ill-defined margin, with pathologically atypia, or ganglion-like cells, a close surveillance after primary surgery with image study might be necessary to detect the tumor recurrence early. Tumor recurrence may be asymptomatic, and it may act like a malignant tumor with a poor prognosis.


Assuntos
Mesentério , Recidiva Local de Neoplasia/cirurgia , Neoplasias Peritoneais/cirurgia , Neoplasias de Tecidos Moles/cirurgia , Humanos , Laparotomia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Neoplasias Peritoneais/patologia , Prognóstico , Reoperação , Neoplasias de Tecidos Moles/patologia
6.
J Chin Med Assoc ; 70(8): 352-5, 2007 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-17698438

RESUMO

Angiosarcoma is a rare soft-tissue neoplasm that occurs most often in the skin and the subcutaneous tissues but very rarely in the gastrointestinal tract. We report a case of primary intestinal angiosarcoma with severe gastrointestinal bleeding. This patient was referred to our institute for shock with tarry-bloody stool and severe anemia. Panendoscopy revealed multiple duodenal polypoid tumors, and initial biopsy specimen showed poorly differentiated adenocarcinoma. The tumors were treated with pancreaticoduodenectomy, but the patient died 2 weeks after the operation as a result of acute respiratory distress syndrome. The pathology was consistent with angiosarcoma of the duodenum. In our experience, this tumor may cause severe bleeding, and surgery should be performed as soon as possible to prevent complications of hypovolemic shock.


Assuntos
Neoplasias Duodenais/complicações , Hemorragia Gastrointestinal/etiologia , Hemangiossarcoma/complicações , Idoso , Neoplasias Duodenais/patologia , Hemangiossarcoma/patologia , Humanos , Masculino
7.
AJR Am J Roentgenol ; 187(4): 940-3, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16985138

RESUMO

OBJECTIVE: Our purpose was to evaluate the safety and therapeutic efficacy of single-session prolonged alcohol sclerotherapy in treating large hepatic cysts. A therapeutic comparison between 4-hour and 2-hour retention techniques was also studied. MATERIALS AND METHODS: Twenty-seven patients with 31 hepatic cysts were enrolled in this study. Seventeen patients (18 cysts) were treated by alcohol retention for 4 hours (group 1) and 10 patients (13 cysts) for 2 hours (group 2). The mean diameter of the hepatic cysts was 12.4 cm (range, 8-23 cm) with a comparable size range in each group. The sclerosing agent used was 95% alcohol, and the maximum amount was limited to 200 mL. Patients changed position and vital signs were monitored every 10-15 minutes. The blood alcohol concentrations were checked hourly for 5 consecutive hours in the initial nine patients. The nonparametric Mann-Whitney U test was used to compare the difference in characteristics and treatment results of the subjects between these two groups. The level of statistical significance was set at a p value of less than 0.05. RESULTS: All but one patient in group 2 tolerated the entire course of sclerotherapy. The mean aspirated volume and mean injected alcohol volume of the hepatic cysts were 730 mL and 138.3 mL, respectively, in group 1 patients, and 931 mL and 139 mL, respectively, in group 2 patients. The mean maximum blood alcohol concentration was 128.2 mg/dL (range, 60-199 mg/dL) at 3-4 hours after alcohol instillation. The mean posttherapy residual cystic diameter was 2.5 cm (range, 0-6 cm), with an average volume reduction rate of 98.3% and 97.7%, respectively, for patients in group 1 and group 2 after a mean follow-up period of 29.6 months (9-59 months). No statistical differences of the mean reduction rate between the two groups were noted. CONCLUSION: Long retention of the alcohol in a single-injection technique is safe and effective. Two-hour alcohol retention has a comparable efficacy to that of 4-hour retention.


Assuntos
Cistos/terapia , Etanol/administração & dosagem , Hepatopatias/terapia , Soluções Esclerosantes/administração & dosagem , Escleroterapia/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ultrassonografia de Intervenção
8.
Otolaryngol Head Neck Surg ; 155(1): 65-75, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26932961

RESUMO

OBJECTIVE: This study explored how different hospital volumes and surgeon volumes affect thyroidectomy outcomes in terms of length of stay (LOS), costs, and in-hospital mortality. DATA SOURCES: MEDLINE and EMBASE databases. REVIEW METHODS: This study retrospectively analyzed a cohort of 125,037 thyroidectomy patients treated at Taiwan hospitals from 1996 to 2010. Relationships between hospital/surgeon volume and patient outcomes were retrospectively analyzed by propensity score matching. In conjunction with the retrospective study, a systematic review and meta-analysis of the relevant literature also were performed. RESULTS: The mean LOS for all thyroidectomies performed during the study period was 3.3 days, and the mean cost was $1193.5. Both high-volume hospitals and high-volume surgeons were associated with significantly shorter LOS and lower costs compared with their low-volume counterparts (P < .001). Different volume groups had similar in-hospital mortality rates. The meta-analysis results consistently showed that the benefits of high-volume hospitals/surgeons are reduced LOS and costs. However, low in-hospital mortality rates were associated with high-volume surgeons but not with high-volume hospitals. CONCLUSIONS: This meta-analysis showed that patients who received thyroidectomies performed by high-volume hospitals and surgeons had shorter LOS and lower costs compared with those treated by low-volume hospitals and surgeons. In addition, in-hospital survival rates were better in patients treated by high-volume surgeons. Further research is needed to define the learning curve for thyroidectomy and to clarify how hospital volume and surgeon volume affect its success rate.


Assuntos
Tireoidectomia , Custos Hospitalares , Mortalidade Hospitalar , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Hospitais com Alto Volume de Atendimentos , Hospitais com Baixo Volume de Atendimentos , Humanos , Tempo de Internação/economia , Tempo de Internação/estatística & dados numéricos , Pontuação de Propensão , Estudos Retrospectivos , Taxa de Sobrevida , Taiwan , Tireoidectomia/economia , Tireoidectomia/estatística & dados numéricos
9.
J Chin Med Assoc ; 68(7): 327-32, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16038373

RESUMO

BACKGROUND: Intestinal obstruction is one of the most common surgical emergencies. The aim of this study was to identify important management information from the evaluation of patients with intestinal obstruction who had undergone previous laparotomy for non-malignancy. METHODS: Data from 176 patients with previous laparotomy for non-malignancy, and who were operated on for intestinal obstruction, were collected and analyzed retrospectively. RESULTS: Gastroduodenal operations, appendectomy, and obstetric/gynecologic procedures were the 3 most common previous abdominal surgeries. More than half of all bowel obstructions developed within 10 years after previous laparotomy, and particularly within the first 5 years. Most obstructions were related to adhesion, although their etiologies were diverse. The rate of bowel strangulation was much higher in patients with internal herniation, volvulus, intussusception, closed loop, and diaphragmatic hernia than in patients with simple adhesion, bezoar, tumor, and inflammation (48.3% vs 12.2%). The surgical mortality rate correlated significantly with bowel strangulation: the overall rate was 6.8%, that in patients with strangulation was 18.8%, and that in patients without strangulation was 4.2%. CONCLUSION: The etiologies of intestinal obstruction were not only significantly related to bowel strangulation, but were also an important determinant of therapeutic strategy.


Assuntos
Obstrução Intestinal/etiologia , Laparotomia/efeitos adversos , Adulto , Idoso , Seguimentos , Humanos , Pessoa de Meia-Idade
10.
J Am Coll Surg ; 197(5): 730-8, 2003 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-14585406

RESUMO

BACKGROUND: Hepatic resection for huge hepatocellular carcinoma (HCC) is challenging. The role of multimodality nonsurgical therapy for HCC larger than 10 cm is unclear. STUDY DESIGN: We retrospectively investigated 131 HCC patients with main tumors larger than 10 cm in diameter seen between October 1990 and October 2001. Fifty-six patients (group A) underwent hepatectomy and 75 patients (group B) underwent nonsurgical multidisciplinary therapy including hepatic arterial infusion, transcatheter arterial embolization, and percutaneous acetic acid injection. RESULTS: Patients in group B were older, had lower serum albumin levels, and there were more patients with liver cirrhosis and great vessel invasion. Median survivals of group A and B patients were 17 months and 7 months, respectively (p < 0.001). But the 1-, 3-, 5-year survival rates in group B using 38 patients undergoing 3 or more sessions of nonsurgical treatment were not significantly worse than those for group A using 53 patients with followup (57.1%, 19.0%, 16.3% versus 60.7%, 24.5%, 24.5%, respectively). Group A patients had 37.7% and 71.7% recurrence rates at 6 and 12 months, respectively, after operation, and they had a significantly higher frequency of overall extrahepatic recurrence compared with group B patients (43.4% versus 18.7%, p = 0.005). In group B, only 3 of 35 patients younger than 60 years had tumor shrinkage after nonsurgical treatment modalities in comparison to 17 of 40 patients in the elderly group (p = 0.003). Younger patients had a significantly higher prevalence of hepatitis B surface antigen positivity (85.7% versus 47.5%) and infiltrating tumor growth pattern (74.3% versus 45.0%) compared with older patients. CONCLUSIONS: Our study suggests that the advantage of hepatic resection in patients with huge HCC is marginal. An effective adjuvant therapy is needed to improve outcomes after hepatic resection. The experience in using nonsurgical treatment shows that the result is poor in young patients compared with that in elderly patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Hepatocelular/terapia , Quimioembolização Terapêutica , Hepatectomia , Neoplasias Hepáticas/terapia , Ácido Acético/administração & dosagem , Fatores Etários , Idoso , Antibióticos Antineoplásicos/administração & dosagem , Biópsia , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/mortalidade , Quimioembolização Terapêutica/métodos , Cisplatino/administração & dosagem , Feminino , Hepatectomia/métodos , Humanos , Infusões Intra-Arteriais , Injeções Intralesionais , Leucovorina/administração & dosagem , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Mitomicina/administração & dosagem , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/etiologia , Estadiamento de Neoplasias , Seleção de Pacientes , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Análise de Sobrevida , Taiwan/epidemiologia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
11.
Anticancer Res ; 23(4): 3223-9, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12926056

RESUMO

BACKGROUND: The compartment theory has not been well investigated in gastric carcinogenesis. This study was aimed at examining the compartment alterations through the Helicobacter pylori (H. pylori)-related chronic gastritis-intestinal metaplasia-carcinoma sequence, and investigating the long-term effect of bacterial eradication on the compartment changes. PATIENTS AND METHODS: Gastric biopsy specimens were obtained from subjects with H. pylori-negative normal mucosa (N = 12), H. pylori-positive non-metaplastic gastritis (N = 42), H. pylori-positive intestinal metaplasia (N = 21) and intestinal-type adenocarcinoma (N = 20). The specimens were immnostained for monocloncal antibodies against the proliferating cell nuclear antigen (PCNA) for proliferating analysis. Additionally, 50 patients with H. pylori-positive gastritis were enrolled to investigate the long-term effect of bacterial eradication on the compartment changes of gastric epithelium. RESULTS: The mean PCNA labeling indices (L.I.) of non-metaplastic gastritis, intestinal metaplasia and adenocarcinoma were significantly higher than that of normal mucosa (31.1, 49.2 and 40.7 vs. 21.4; p < 0.01, 0.001 and 0.001, respectively). The proliferating zone was principally located in the lower compartment of normal mucosa. In patients with intestinal metaplasia, there was a full expansion (phase 1 change) of proliferating zone to the middle compartment of gastric pits (ratio of L.I. between middle and lower compartment = 1.00). The proliferating cells were evenly distributed in adenocarcinoma (complete loss of compartmentalization). Eradiation of H. pylori led to a reversion of compartment changes of gastric epithelium in patients with chronic gastritis. CONCLUSION: H. pylori-related gastric carcinogenesis is a multistep process involving progressive alterations of proliferating activity as well as loss of compartmentalization. Eradication of H. pylori reverses the changes in growth kinetics of gastric epithelium.


Assuntos
Adenocarcinoma/microbiologia , Gastrite/microbiologia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Neoplasias Gástricas/microbiologia , 2-Piridinilmetilsulfinilbenzimidazóis , Adenocarcinoma/patologia , Idoso , Ciclo Celular/fisiologia , Divisão Celular/fisiologia , Doença Crônica , Progressão da Doença , Quimioterapia Combinada , Feminino , Mucosa Gástrica/microbiologia , Mucosa Gástrica/patologia , Gastrite/patologia , Humanos , Lansoprazol , Masculino , Metaplasia/microbiologia , Metaplasia/patologia , Metronidazol/uso terapêutico , Pessoa de Meia-Idade , Omeprazol/análogos & derivados , Omeprazol/uso terapêutico , Neoplasias Gástricas/patologia , Tetraciclina/uso terapêutico
12.
J Formos Med Assoc ; 102(7): 514-6, 2003 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-14517593

RESUMO

Gastroenterologists are often frustrated in their efforts to deliver a feeding tube by endoscopic guidance into the small bowel because of retrograde migration during the withdrawal of the endoscope. We describe a clip assisted endoscopic method whereby a nasoenteric feeding tube can be reliably delivered into the distal duodenum. A nasoduodenal tube with a 3-0 silk suture sewn on its distal tip is inserted into the stomach. The suture on the feeding tube is grasped by a clip-fixing device. Then, the endoscope with feeding tube is advanced into the distal duodenum and the tube is fixed on a mucosal fold by clipping. We used this technique to successfully place nasoenteric tubes into the distal duodenum in 9 patients. There were no procedure-related complications, and no bleeding or perforation due to removal of the feeding tubes was observed. We conclude that this clip-assisted endoscopic method is a reliable modality for placing nasoenteric tubes.


Assuntos
Duodeno , Endoscopia do Sistema Digestório , Nutrição Enteral/instrumentação , Intubação Gastrointestinal/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
J Chin Med Assoc ; 66(12): 741-6, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-15015824

RESUMO

BACKGROUND: Intestinal obstruction has remained one of the most common surgical emergencies, and its clinical spectrum has shifted in past decades. The factors contributing to its surgical mortality were studied in these selected patients with a view to finding pointers which help surgeons to identify patients with high surgical risk of mortality. METHODS: Those adult patients who had prior laparotomy for non-malignancy and were operated on for intestinal obstruction were included and studied retrospectively. Thirteen possible risk factors, including co-existing medical illness, tachycardia, preoperative shock, age, bowel ischemia, operative complication, leukocytosis, durations from symptom onset to hospitalization, from hospitalization to operation, and from symptom onset to operation, prior laparotomy number, time interval from last laparotomy to this operation, and operation method, were analyzed using univariate analysis and, then, multivariate analysis to find out the independent risk factors for surgical death. RESULTS: Adhesion-related etiologies were the most common. Still, one-tenth of cases were not adhesion-related. Obstruction in the small bowel (172/176) was more frequent than in the large bowel (4/176). The surgical mortality rate was 6.8% (12/176). The independent risk factors of mortality after surgical treatment were co-existing medical illness, bowel ischemia, preoperative shock, and operative complication. Old age seemed to be a risk factor on univariate anlaysis, but not on multivariate analysis. Duration from symptom onset to hospitalization, from hospitalization to operation, or from symptom onset to operation was not significantly related to surgical mortality. CONCLUSIONS: High risk patients could be identified by 4 independent factors: coexisting medical illness, bowel ischemia, preoperative shock, and operative complication. Old age itself was not an independent risk factor.


Assuntos
Obstrução Intestinal/mortalidade , Obstrução Intestinal/cirurgia , Laparotomia , Adolescente , Adulto , Idoso , Humanos , Obstrução Intestinal/complicações , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Fatores de Risco
14.
World J Gastroenterol ; 20(32): 11384-93, 2014 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-25170226

RESUMO

AIM: To demonstrate that administering heparanase inhibitor PI-88 at 160 mg/d is safe and promising in reducing hepatocellular carcinoma (HCC) recurrence for up to 3 year following curative resection. METHODS: A total of 143 patients (83.1% of the 172 participants in the phase II study) participated in the follow-up study. Of these patients, 50 had received no treatment, 48 had received 160 mg/d PI-88, and 45 had received 250 mg/d PI-88 during the phase II trial. Safety parameters and the following efficacy endpoints were investigated: (1) time to recurrence; (2) disease-free survival; and (3) overall survival. RESULTS: PI-88 at 160 mg/d delayed the onset and frequency of HCC recurrence, and provided a clinically significant survival advantage for up to 3 years after treatment compared with those of the control group: (1) the recurrence-free rate increased from 50% to 63%, and (2) time to recurrence at the 36th percentile was postponed by 78%. The efficacy of administering PI-88 at 250 mg/d was confounded by a high dropout rate (11 out of 54 patients). Additionally, subgroup analyses of patients with (1) multiple tumors or a single tumor ≥ 2 cm; and (2) hepatitis B or C revealed that administering PI-88 at 160 mg/d conferred the most significant survival advantage (56.8% improvement in disease-free survival, P = 0.045) for patients with both risk factors for recurrence. CONCLUSION: Administering PI-88 at 160 mg/d is a safe and well-tolerated dosage that may confer significant clinical benefits for patients with HCC.


Assuntos
Antineoplásicos/administração & dosagem , Carcinoma Hepatocelular/tratamento farmacológico , Inibidores Enzimáticos/administração & dosagem , Glucuronidase/antagonistas & inibidores , Neoplasias Hepáticas/tratamento farmacológico , Oligossacarídeos/administração & dosagem , Adulto , Idoso , Carcinoma Hepatocelular/enzimologia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Quimioterapia Adjuvante , Intervalo Livre de Doença , Esquema de Medicação , Feminino , Glucuronidase/metabolismo , Humanos , Neoplasias Hepáticas/enzimologia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Análise de Sobrevida , Taiwan , Fatores de Tempo , Resultado do Tratamento
15.
J Chin Med Assoc ; 76(8): 425-31, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23796652

RESUMO

BACKGROUND: To evaluate hyperthermic intraperitoneal chemotherapy (HIPEC) as an adjuvant chemotherapy in advanced gastric cancer (AGC) patients with serosal invasion. METHODS: Patients who received radical surgery and palliative surgery between January 2002 and December 2010 were retrospectively examined. Patients were divided into two groups, namely, one group that underwent surgery and another group that underwent surgery with HIPEC. All patients who received HIPEC had suspected serosal invasion on an abdominal computed tomography or by the surgeon's assessment during the operation. RESULTS: The prophylactic groups included 83 patients who underwent gastrectomy alone. A total of 29 patients underwent gastrectomy with HIPEC. The 5-year survival rates were 10.7% and 43.9%, respectively. The 5-year mean survival times were 22.66 (17.55-25.78) and 34.81 (24.97-44.66) months (p = 0.029), respectively. There were 52 patients who had a recurrence of carcinomatosis among 133 patients who had resections (52/133, 39.1%). The 3-year disease-free survival rate for carcinomatosis was 28.87% in the group that received surgery alone, whereas it was 66.03% in the group that received HIPEC. There was no significant difference in the rate of complication between the two groups in the prophylactic group (p = 0.542). Thus, curative surgery with HIPEC had a better prognosis for AGC with serosal invasion. The carcinomatosis recurrence time was longer in patients who underwent gastrectomy with HIPEC and received R0 resection. CONCLUSION: The survival benefit of HIPEC as an adjuvant therapy for gastric cancer patients with serosal invasion should be validated in a large cohort.


Assuntos
Antineoplásicos/administração & dosagem , Hipertermia Induzida/métodos , Neoplasias Gástricas/terapia , Adulto , Idoso , Quimioterapia Adjuvante , Feminino , Humanos , Injeções Intraperitoneais , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia
16.
J Chin Med Assoc ; 75(11): 573-80, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23158035

RESUMO

BACKGROUND: The significance of lymph node involvement regarding the prognosis of primary duodenal adenocarcinoma remains controversial. This study aims to evaluate the prognostic accuracy of nodal metastasis using the seventh edition American Joint Committee on Cancer staging system in patients with primary duodenal adenocarcinoma. METHODS: Between 1993 and 2010, 36 patients who had undergone surgical resection for primary duodenal adenocarcinoma at the Kaohsiung Veterans General Hospital were retrospectively reviewed. RESULTS: The median disease-free survival for all patients was 19 months and the median overall survival was 21 months. Lymph node metastases were found in 26 (72%) of the patients, and 14 patients (39%) patients had in excess of three positive lymph nodes (N2). Patients with N2 disease had significantly reduced overall survival, as compared to patients with three or fewer positive lymph nodes (N1; p = 0.036). In univariate analysis, factors including age >75 years, body weight loss, tumor size ≤ 4 cm, N2 disease and lymph node ratio >0.4 predicted shorter overall survival. Multivariate analysis demonstrated that N2 and lymph node ratio >0.4 are significant risk factors associated with overall survival (p = 0.026 and p = 0.042 respectively). N2 is also the only independent predictive factor for disease-free survival (p = 0.023). CONCLUSION: Subdivision of metastatic lymph nodes into N1 and N2 improves predictive ability. The seventh edition American Joint Committee on Cancer staging system is applicable in the present study with regard to the prediction of the prognosis for primary duodenal adenocarcinoma.


Assuntos
Adenocarcinoma/mortalidade , Neoplasias Duodenais/mortalidade , Linfonodos/patologia , Metástase Linfática/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico
17.
J Am Coll Surg ; 211(5): 580-6, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20851644

RESUMO

BACKGROUND: Genotype B and C are the predominant hepatitis B virus (HBV) strains in Taiwan. We aimed to investigate the role of genotype in HBV-related hepatocellular carcinoma (HCC) after resection. STUDY DESIGN: From October 2005 to November 2008, 64 patients who underwent liver resection for HBV-related HCC were enrolled. HBV genotypes were determined by molecular method. Patient characteristics, biochemical, tumor, and viral factors were evaluated for their prognostic significance. RESULTS: During a mean follow-up of 26.6 ± 13.2 months, patients infected with genotype C had higher HBV viral load (p = 0.007) and worse disease-free survival rate (p = 0.028) than patients with genotype B. By univariate analysis, genotype C, alanine transaminase >50 U/L, tumor size ≥5 cm, and microvascular invasion were associated with tumor recurrence. Further multivariate analysis demonstrated genotype C remained a significant risk factor (p = 0.034). CONCLUSIONS: Genotype C is a strong risk factor for HCC recurrence after resection. More intensive monitoring for recurrence should be considered in patients with genotype C.


Assuntos
Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/virologia , Vírus da Hepatite B/genética , Hepatite B/epidemiologia , Hepatite B/virologia , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/virologia , Recidiva Local de Neoplasia/epidemiologia , Carcinoma Hepatocelular/epidemiologia , Causalidade , Causas de Morte , Comorbidade , DNA Viral/isolamento & purificação , Intervalo Livre de Doença , Feminino , Seguimentos , Genótipo , Hepacivirus/imunologia , Humanos , Neoplasias Hepáticas/epidemiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Peliose Hepática , Fatores de Risco , Taxa de Sobrevida , Resultado do Tratamento , Carga Viral
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA