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Tsukasa Yasuda,Kazuo Hara,Nobumasa Mizuno,Shin Haba,Takamichi Kuwahara,Nozomi Okuno,Yasuhiro Kuraishi,Takafumi Yanaidani,Sho Ishikawa,Masanori Yamada,Toshitaka Fukui 대한소화기내시경학회 2024 Clinical Endoscopy Vol.57 No.2
Background/Aims: Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (EUS-HGS) is useful for patients with biliary cannulation failure or inaccessible papillae. However, it can lead to serious complications such as bile peritonitis in patients with ascites; therefore, development of a safe method to perform EUS-HGS is important. Herein, we evaluated the safety of EUS-HGS with continuous ascitic fluid drainage in patients with ascites. Methods: Patients with moderate or severe ascites who underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after the procedure at our institution between April 2015 and December 2022, were included in the study. We evaluated the technical and clinical success rates, EUS-HGS-related complications, and feasibility of re-intervention. Results: Ten patients underwent continuous ascites drainage, which was initiated before EUS-HGS and terminated after completion of the procedure. Median duration of ascites drainage before and after EUS-HGS was 2 and 4 days, respectively. Technical success with EUS-HGS was achieved in all 10 patients (100%). Clinical success with EUS-HGS was achieved in 9 of the 10 patients (90%). No endoscopic complications such as bile peritonitis were observed. Conclusions: In patients with ascites, continuous ascites drainage, which is initiated before EUS-HGS and terminated after completion of the procedure, may prevent complications and allow safe performance of EUS-HGS.
Nakano, Yoshiharu,Ishiwata, Tetsuya,Yamaguchi, Satoshi,Toki, Masanori,Igarashi, Minoru,Usui, Yoshiharu,Miyamae, Hiroshi,Yamada, Yoichi,Yasuda, Heinosuke Korean Society of Photoscience 1999 Journal of Photosciences Vol.6 No.4
Various arylidene- or alkylidenemalononitriles are condensed with electrophilic ethylenes to obtain polycyanoaniline derivatives. All the anilines showed strong fluorescence and the fluorescence intensities was evaluated to the effect of substituents.
Yasuhiro Kuraishi,Kazuo Hara,Shin Haba,Takamichi Kuwahara,Nozomi Okuno,Takafumi Yanaidani,Sho Ishikawa,Tsukasa Yasuda,Masanori Yamada,Nobumasa Mizuno 대한소화기내시경학회 2023 Clinical Endoscopy Vol.56 No.4
Background/Aims: Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) is the most common and serious complication of endoscopic retrograde cholangiopancreatography. To prevent this event, a unique precutting method, termed opening window fistulotomy, was performed in patients with a large infundibulum as the primary procedure for biliary cannulation, whereby a suprapapillary laid-down H-shaped incision was made without touching the orifice. This study aimed to assess the safety and feasibility of this novel technique. Methods: One hundred and ten patients were prospectively enrolled in this study. Patients with a papillary roof size ≥10 mm underwent opening window fistulotomy for primary biliary access. In addition, the incidence of complications and success rate of biliary cannulation were evaluated. Results: The median size of the papillary roof was 6 mm (range, 3–20 mm). Opening window fistulotomy was performed in 30 patients (27.3%), none of whom displayed PEP. Duodenal perforation was recorded in one patient (3.3%), which was resolved by conservative treatment. The cannulation rate was high (96.7%, 29/30 patients). The median duration of biliary access was 8 minutes (range, 3–15 minutes). Conclusions: Opening window fistulotomy demonstrated its feasibility for primary biliary access by achieving great safety with no PEP complications and a high success rate for biliary cannulation.
Endoscopic ultrasound-guided drainage for an abscess cavity
Nozomi Okuno,Kazuo Hara,Nobumasa Mizuno,Shin Haba,Takamichi Kuwahara,Yasuhiro Kuraishi,Takafumi Yanaidani,Sho Ishikawa,Tsukasa Yasuda,Masanori Yamada,Toshitaka Fukui 소화기인터벤션의학회 2022 International journal of gastrointestinal interven Vol.11 No.4
Endoscopic ultrasound (EUS)-guided interventions, including EUS-guided biliary drainage and EUS-guided cystic drainage, are now well developed and in widespread use. Intraperitoneal abscess requires drainage because mortality associated with an undrained abscess is high. Percutaneous or surgical drainage has traditionally been performed, but there have been numerous reports of EUS-guided drainage for intraperitoneal abscesses in recent years. EUS-guided abscess drainage has the advantage of being less invasive and enabling direct access to the cavity via the trans-luminal route as well as clear visualization of interposed vessels using color Doppler ultrasonography. It is necessary to consider the advantages and disadvantages when selecting a drainage method. This article reviews the current status of EUS-guided abscess drainage at three sites: the liver, pelvis, and mediastinum.
Endoscopic ultrasound-guided drainage for an abscess cavity
Nozomi Okuno,Kazuo Hara,Nobumasa Mizuno,Shin Haba,Takamichi Kuwahara,Yasuhiro Kuraishi,Takafumi Yanaidani,Sho Ishikawa,Tsukasa Yasuda,Masanori Yamada,Toshitaka Fukui 소화기인터벤션의학회 2022 Gastrointestinal Intervention Vol.11 No.4
Endoscopic ultrasound (EUS)-guided interventions, including EUS-guided biliary drainage and EUS-guided cystic drainage, are now well developed and in widespread use. Intraperitoneal abscess requires drainage because mortality associated with an undrained abscess is high. Percutaneous or surgical drainage has traditionally been performed, but there have been numerous reports of EUS-guided drainage for intraperitoneal abscesses in recent years. EUS-guided abscess drainage has the advantage of being less invasive and enabling direct access to the cavity via the trans-luminal route as well as clear visualization of interposed vessels using color Doppler ultrasonography. It is necessary to consider the advantages and disadvantages when selecting a drainage method. This article reviews the current status of EUS-guided abscess drainage at three sites: the liver, pelvis, and mediastinum.