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- 저자 : Chinatsu Mori (검색결과 3 건)
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Tsuyoshi Takeda,Takashi Sasaki,Takafumi Mie,Takeshi Okamoto,Chinatsu Mori,Takaaki Furukawa,Yuto Yamada,Akiyoshi Kasuga,Masato Matsuyama,Masato Ozaka,Naoki Sasahira 대한소화기내시경학회 2022 Clinical Endoscopy Vol.55 No.4
Background/Aims: Digital single-operator cholangioscopy (DSOC)-guided mapping biopsy (DMB) and tube-assisted mapping biopsy(TMB) are two techniques used for preoperative evaluation of biliary tract cancer (BTC). However, data regarding the diagnostic performanceof these techniques are limited. Methods: We retrospectively examined consecutive patients with BTC who underwent either technique at our institution between2018 and 2020. We evaluated the technical success rate, adequate tissue acquisition rate, and diagnostic performance of these techniquesfor the evaluation of lateral spread of BTC. Results: A total of 54 patients were included in the study. The technical success rate of reaching the target sites was 95% for DMB and100% for TMB. The adequate tissue acquisition rate was 61% for DMB and 69% for TMB. The adequate tissue acquisition rate was low,especially for target sites beyond the secondary biliary radicles. The sensitivity of DMB alone was 39%, which improved to 65% whencombined with visual impression. Experts demonstrated a higher negative predictive value and diagnostic accuracy with respect toboth DSOC visual impression and DMB for the evaluation of lateral spread of BTC compared to trainees. Conclusions: Adequate tissue acquisition rates were similar between the two techniques. Since DMB requires expertise, TMB may bean acceptable option when DSOC is unavailable or when DSOC expertise is limited.
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Takeshi Okamoto,Takashi Sasaki,Tsuyoshi Takeda,Takafumi Mie,Chinatsu Mori,Takaaki Furukawa,Yuto Yamada,Akiyoshi Kasuga,Masato Matsuyama,Masato Ozaka,Naoki Sasahira 대한소화기내시경학회 2024 Clinical Endoscopy Vol.57 No.1
Background/Aims: Selective bile duct or pancreatic duct cannulation remains a significant initial hurdle in endoscopic retrograde cholangiopancreatography (ERCP) despite advances in endoscopy and accessories. This study evaluated our experience with a rotatable sphincterotome in cases of difficult cannulation. Methods: We retrospectively reviewed ERCP cases using TRUEtome, a rotatable sphincterotome, as a rescue device for cannulation at a cancer institute in Japan from October 2014 to December 2021. Results: TRUEtome was used in 88 patients. Duodenoscopes were used for 51 patients, while single-balloon enteroscopes (SBE) were used for 37 patients. TRUEtome was used for biliary and pancreatic duct cannulation (84.1%), intrahepatic bile duct selection (12.5%), and strictures of the afferent limb (3.4%). Cannulation success rates were similar in the duodenoscope and SBE groups (86.3% vs. 75.7%, p=0.213). TRUEtome was more commonly used in cases with steep cannulation angles in the duodenoscope group and in cases requiring cannulation in different directions in the SBE group. There were no significant differences in adverse events between the two groups. Conclusions: The cannulation sphincterotome was useful for difficult cannulations in both unaltered and surgically altered anatomies. It may be an option to consider before high-risk procedures such as precut and endoscopic ultrasound-guided rendezvous techniques.
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Takafumi Mie,Takashi Sasaki,Takeshi Okamoto,Tsuyoshi Takeda,Chinatsu Mori,Yuto Yamada,Takaaki Furukawa,Akiyoshi Kasuga,Masato Matsuyama,Masato Ozaka,Naoki Sasahira 대한소화기내시경학회 2024 Clinical Endoscopy Vol.57 No.2
Background/Aims: Hepaticojejunostomy anastomotic stricture (HJAS) is a feared adverse event associated with hepatopancreatobiliary surgery. Although balloon dilation for benign HJAS during endoscopic retrograde cholangiopancreatography with balloon-assisted enteroscopy has been reported to be useful, the treatment strategy remains controversial. Therefore, we evaluated the outcomes and risk factors of recurrent stenosis after balloon dilation alone for benign HJAS. Methods: We retrospectively analyzed consecutive patients who underwent balloon-assisted enteroscopy-endoscopic retrograde cholangiopancreatography for benign HJAS at our institution between July 2014 and December 2020. Results: Forty-six patients were included, 16 of whom had recurrent HJAS after balloon dilation. The patency rates at 1 and 2 years after balloon dilation were 76.8% and 64.2%, respectively. Presence of a residual balloon notch during balloon dilation was an independent predictor of recurrence (hazard ratio, 2.80; 95% confidence interval, 1.01–7.78; p=0.048), whereas HJAS within postoperative 1 year tended to be associated with recurrence (hazard ratio, 2.43; 95% confidence interval, 0.85–6.89; p=0.096). The patency rates in patients without a residual balloon notch were 82.1% and 73.1% after 1 and 2 years, respectively. Conclusions: Balloon dilation alone may be a viable option for patients with benign HJAS without residual balloon notches on fluoroscopy.
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