Jonas Takada
University of São Paulo
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Featured researches published by Jonas Takada.
Gastrointestinal Endoscopy | 2011
Everson L. Artifon; Luciano Okawa; Jonas Takada; Kapil Gupta; Eduardo Guimarães Hourneaux de Moura; Paulo Sakai
Endoscopic transpapillary biliary drainage is the criterion standard procedure for biliary decompression. However, ERCP can fail in 3% to 10% of cases. 1-4 In these cases, percutaneous transhepatic biliary drainage and surgical intervention are the alternatives. 1,3,4 These alternatives have significant morbidity. 5-8 However, a more recent option is EUS-guided biliary drainage (EUS-BD). We describe a case of unresectable pancreatic cancer with biliary obstruction and extensive duodenal invasion that was successfully treated with a variation of the EUS-BD by performing a choledochoantrostomy.
Journal of the Pancreas | 2010
Everson L. Artifon; Jonas Takada; Luciano Okawa; Eduardo Guimarães Hourneaux de Moura; Paulo Sakai
CONTEXT Endoscopic retrograde cholangiopancreatography (ERCP) is the procedure of choice for biliary decompression in patients with unresectable pancreatic cancer. However, it may be unsuccessful in 3 to 10% of cases. When ERCP is unsuccessful, the usual alternatives are percutaneous transhepatic biliary drainage or surgery. Recently, several authors have reported the use of EUS-guided biliary drainage in patients with malignant biliary obstructions, with acceptable success and complication rates. We describe three cases of unresectable pancreatic cancer associated with obstructive jaundice, treated by EUS-guided biliary drainage. CASE REPORT Three patients with unresectable pancreatic cancer, associated with obstructive jaundice, were included. ERCP was unsuccessful because of complete tumor obstruction of the distal common bile duct and papilla invasion. An EUS-guided rendezvous maneuver was attempted, without success. Then, EUS-guided choledochoduodenostomy, with a partially covered self-expanding metal stent, was performed in the same procedure. There were no early complications and the procedure was also clinically effective in relieving jaundice in all cases. CONCLUSIONS EUS-guided biliary drainage is a feasible alternative to percutaneous transhepatic biliary drainage or surgery in unresectable pancreatic cancer with obstructive jaundice when ERCP fails. However, the development of new specific instruments and studies comparing this procedure with percutaneous transhepatic biliary drainage and surgery are needed.
Scandinavian Journal of Gastroenterology | 2013
Everson L. Artifon; Mariana S. V. Frazão; Stephanie Wodak; Fred Olavo Aragão Andrade Carneiro; Jonas Takada; Carolina Rabello; Dayse P. Aparicio; Eduardo Guimarães Hourneaux de Moura; Paulo Sakai; José Pinhata Otoch
Abstract Objective. Describe a case series of endoscopic ultrasound (EUS)-guided choledochoduodenostomy (EUS-CD) associated with duodenal self-expandable metal stents (SEMS) placement using solely the linear echoendoscope in seven patients with obstructive jaundice and duodenal obstruction due to unresectable periampullary cancer. Material and methods. EUS-CD in the first portion of the duodenum, associated with duodenal SEMS placement was performed in seven patients with unresectable periampullary cancer with obstructive jaundice and invasive duodenal obstruction. Laboratory tests and clinical follow-up were performed until patients death. The procedure was performed by an experienced endoscopist under conscious sedation. The puncture position was chosen based on EUS evaluation, at the common bile duct (CBD) above the tumor, through the distal part of the duodenal bulb. After that, the needle was withdrawn and a wire-guided needle knife was used to enlarge the site puncture in the duodenal wall. Then, a partially covered SEMS was passed over the guide, through the choledochoduodenal fistula. Duodenal SEMS placement was performed during the same endoscopic procedure. Results. The procedure was performed in seven patients, ranging between 34 and 86 years. Technical success of EUS-CD, by the stent placement, occurred in 100% of the cases. There were no early complications. Duodenal SEMS placement was effective in 100% of the cases that remained alive after a follow-up of 7 and 30 days. Conclusion. The results suggest therapeutic EUS one-step procedure drainage as an alternative for these patients, with good clinical success, feasible technique and safety.
Revista de gastroenterologia del Peru : organo oficial de la Sociedad de Gastroenterologia del Peru | 2012
Everson L. Artifon; Flavio Coelho; Mariana S. V. Frazão; Sergio Barbosa Marques; Jose B. Paione; Jonas Takada; Paulo Boaventura; Carolina Rebello; José Pinhata Otoch
Digestive Diseases and Sciences | 2011
Everson L. Artifon; Eduardo B. da Silveira; Dayse P. Aparicio; Jonas Takada; Renato Baracat; Christiano Sakai; Ruel T. Garcia; Vanessa Teich; Decio S. Couto
Gastrointestinal Endoscopy | 2011
Everson L. Artifon; Adriana V. Safatle-Ribeiro; Flavio C. Ferreira; Eduardo B. da Silveira; Luciano Okawa; Jonas Takada; Eduardo Guimarães Hourneaux de Moura; Paulo Sakai; Michel Kahaleh
Revista de Gastroenterología del Perú | 2017
Janaina Gatto; Jonas Takada; José Pinhata Otoch; ernanda Kreve; Francisco S. Loss; Everson L. Artifon
Revista de Gastroenterología del Perú | 2017
Fernanda Kreve; Jonas Takada; Janaina Gatto; Francisco S. Loss; Everson L. Artifon
Revista de Gastroenterología del Perú | 2017
Fernanda Kreve; Jonas Takada; Janaina Gatto; Francisco S. Loss; Everson L. Artifon
Revista de Gastroenterología del Perú | 2017
Fernanda Kreve; Jonas Takada; Janaina Gatto; Francisco S. Loss; Everson L. Artifon