Osamu Togawa
Overview
Explore the profile of Osamu Togawa including associated specialties, affiliations and a list of published articles.
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74
Citations
1175
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Recent Articles
11.
Hamada T, Nakai Y, Lau J, Moon J, Hayashi T, Yasuda I, et al.
Scand J Gastroenterol
. 2017 Oct;
53(1):46-55.
PMID: 28982258
Objective: Endoscopic transpapillary or endoscopic ultrasound (EUS)-guided stent placement is used for nonresectable distal malignant biliary obstruction. We conducted a retrospective study to evaluate endoscopic biliary drainage in patients with...
12.
Takahara N, Isayama H, Nakai Y, Yoshida S, Saito T, Mizuno S, et al.
Gut Liver
. 2017 Feb;
11(4):481-488.
PMID: 28208004
Background/aims: Endoscopic placement of self-expandable metal stents (SEMSs) has emerged as a palliative treatment for malignant gastric outlet obstruction (GOO). Although covered SEMSs can prevent tumor ingrowth, frequent migration of...
13.
Takahara N, Isayama H, Nakai Y, Sasaki T, Ishigaki K, Saito K, et al.
Invest New Drugs
. 2017 Jan;
35(3):269-276.
PMID: 28124197
Objective This study aimed to compare the safety and efficacy of the combination therapy of gemcitabine and S-1 (GS) versus gemcitabine and cisplatin (GC) in patients with advanced biliary tract...
14.
Hamada T, Isayama H, Nakai Y, Togawa O, Takahara N, Uchino R, et al.
Gut Liver
. 2016 Jun;
11(1):142-148.
PMID: 27282268
Background/aims: In distal malignant biliary obstruction, an antireflux metal stent (ARMS) with a funnel-shaped valve is effective as a reintervention for metal stent occlusion caused by reflux. This study sought...
15.
Sasahira N, Hamada T, Togawa O, Yamamoto R, Iwai T, Tamada K, et al.
World J Gastroenterol
. 2016 Apr;
22(14):3793-802.
PMID: 27076764
Aim: To determine the optimal method of endoscopic preoperative biliary drainage for malignant distal biliary obstruction. Methods: Multicenter retrospective study was conducted in patients who underwent plastic stent (PS) or...
16.
Hamada T, Isayama H, Nakai Y, Togawa O, Kogure H, Takahara N, et al.
Surg Laparosc Endosc Percutan Tech
. 2015 Apr;
25(3):212-7.
PMID: 25856131
An antireflux metal stent (ARMS) for distal malignant biliary obstruction has been reported to be useful, but the effectiveness of a flared-end structure to prevent migration on ARMS remains unclear....
17.
Sasahira N, Kawakami H, Isayama H, Uchino R, Nakai Y, Ito Y, et al.
Endoscopy
. 2015 Jan;
47(5):421-9.
PMID: 25590186
Background And Study Aims: There are no guidelines for the timing of conversion from a single-guidewire to a double-guidewire technique to facilitate selective bile duct cannulation and reduce post-endoscopic retrograde...
18.
Sasaki T, Isayama H, Nakai Y, Takahara N, Hamada T, Mizuno S, et al.
Dig Endosc
. 2014 Jul;
27(1):37-43.
PMID: 24995858
Background And Aim: To evaluate the efficacy and safety of secondary gastroduodenal stent placement after first stent dysfunction for malignant gastric outlet obstruction. Methods: We conducted a retrospective analysis to...
19.
Hamada T, Isayama H, Nakai Y, Kogure H, Yamamoto N, Kawakubo K, et al.
Dig Dis Sci
. 2014 May;
59(8):1931-8.
PMID: 24839917
Background: Self-expandable metal stents (SEMS) are widely utilized to relieve symptoms of malignant gastric outlet obstruction (GOO), but GOO is frequently complicated by nonresectable distal biliary obstruction. The optimal endoscopic...
20.
Nakai Y, Isayama H, Kogure H, Hamada T, Togawa O, Ito Y, et al.
J Gastroenterol Hepatol
. 2014 Apr;
29(9):1744-9.
PMID: 24720610
Background And Aim: Covered metallic stents (CMSs) were developed to overcome tumor ingrowth in uncovered metallic stents (UMSs) for malignant biliary obstruction, but superiority of CMSs over UMSs is still...