Uirá Teixeira - Academia.edu (original) (raw)

Papers by Uirá Teixeira

Research paper thumbnail of Porta hepatis schwannoma diagnosed by endoscopic ultrasound-guided fine-needle biopsy

Research paper thumbnail of Primitive Neuroectodermal Tumor of the Pancreas: A Case Report and Review of the Literature

Case reports in surgery, 2015

Primitive neuroectodermal tumors (PNETs) are presented as rare malignant neoplasms. In unusual ca... more Primitive neuroectodermal tumors (PNETs) are presented as rare malignant neoplasms. In unusual cases, those neoplasms may arise in solid organs containing neuroendocrine cells, such as the pancreas. Herein the case of a 28-year-old patient that underwent gastroduodenopancreatectomy after the diagnosis of a huge mass (PNET) located in both head and body of the pancreas is reported. This is the 19th case of pancreatic PNET reported in literature.

Research paper thumbnail of LOW MORTALITY RATE IN 97 CONSECUTIVE PANCREATICODUODENECTOMIES: the experience of a group

Arquivos de Gastroenterologia, 2014

Context -Pancreaticoduodenectomy is the procedure of choice for resectable cancer of the periampu... more Context -Pancreaticoduodenectomy is the procedure of choice for resectable cancer of the periampullary region. These tumors account for 4% of deaths from cancer, being referred to as one of the lowest survival rates at 5 years. Surgery remains a complex procedure with substantial morbidity and mortality. Despite reports of up to 30% mortality rates, in centers of excellence it have been identified as less than 5%. Recent studies show that pancreaticojejunostomy represents the "Achilles' heel" of the procedure. Objective -To evaluate the post-operative 30 days morbidity and mortality rates. Methods -Retrospective analysis of 97 consecutive resected patients between July, 2000 and December, 2012. All patients were managed by the same group, and datawere obtained from specific database service. The main objective was to evaluate the 30-day mortality rate, but we also studied data of surgical specimen, need for vascular resection and postoperative complications (gastric stasis, pancreatic fistula, pneumonia and reoperation rate). Results -Thirty-day mortality rate was 2.1% (two patients). Complete resection with no microscopic residual tumor was obtained in 93.8% of patients, and in 67.3% of cases pathology did not detected metastatic nodes. Among postoperative complications were reported 6% of prolonged gastric stasis, 10.3% of pneumonia, 10.3% of pancreatic fistula and 1% of infection in the drain pathway. Two patients underwent reoperation due to bleeding and infected hematoma caused by pancreatic fistula, and another for intestinal obstruction because of adhesions at postoperative day 12. Conclusion -The pancreaticoduodenectomy as treatment procedure for periampullary cancers has a low morbidity and mortality rate in services with experience in Hepato-Pancreato-Biliary surgery, remaining as first-line treatment in resectable patients. HEADINGS -Pancreatic neoplasms. Pancreaticoduodenectomy. Mortality.

Research paper thumbnail of Porta hepatis schwannoma diagnosed by endoscopic ultrasound-guided fine-needle biopsy

Research paper thumbnail of Primitive Neuroectodermal Tumor of the Pancreas: A Case Report and Review of the Literature

Case reports in surgery, 2015

Primitive neuroectodermal tumors (PNETs) are presented as rare malignant neoplasms. In unusual ca... more Primitive neuroectodermal tumors (PNETs) are presented as rare malignant neoplasms. In unusual cases, those neoplasms may arise in solid organs containing neuroendocrine cells, such as the pancreas. Herein the case of a 28-year-old patient that underwent gastroduodenopancreatectomy after the diagnosis of a huge mass (PNET) located in both head and body of the pancreas is reported. This is the 19th case of pancreatic PNET reported in literature.

Research paper thumbnail of LOW MORTALITY RATE IN 97 CONSECUTIVE PANCREATICODUODENECTOMIES: the experience of a group

Arquivos de Gastroenterologia, 2014

Context -Pancreaticoduodenectomy is the procedure of choice for resectable cancer of the periampu... more Context -Pancreaticoduodenectomy is the procedure of choice for resectable cancer of the periampullary region. These tumors account for 4% of deaths from cancer, being referred to as one of the lowest survival rates at 5 years. Surgery remains a complex procedure with substantial morbidity and mortality. Despite reports of up to 30% mortality rates, in centers of excellence it have been identified as less than 5%. Recent studies show that pancreaticojejunostomy represents the "Achilles' heel" of the procedure. Objective -To evaluate the post-operative 30 days morbidity and mortality rates. Methods -Retrospective analysis of 97 consecutive resected patients between July, 2000 and December, 2012. All patients were managed by the same group, and datawere obtained from specific database service. The main objective was to evaluate the 30-day mortality rate, but we also studied data of surgical specimen, need for vascular resection and postoperative complications (gastric stasis, pancreatic fistula, pneumonia and reoperation rate). Results -Thirty-day mortality rate was 2.1% (two patients). Complete resection with no microscopic residual tumor was obtained in 93.8% of patients, and in 67.3% of cases pathology did not detected metastatic nodes. Among postoperative complications were reported 6% of prolonged gastric stasis, 10.3% of pneumonia, 10.3% of pancreatic fistula and 1% of infection in the drain pathway. Two patients underwent reoperation due to bleeding and infected hematoma caused by pancreatic fistula, and another for intestinal obstruction because of adhesions at postoperative day 12. Conclusion -The pancreaticoduodenectomy as treatment procedure for periampullary cancers has a low morbidity and mortality rate in services with experience in Hepato-Pancreato-Biliary surgery, remaining as first-line treatment in resectable patients. HEADINGS -Pancreatic neoplasms. Pancreaticoduodenectomy. Mortality.