Innovative method for the diagnosis of bile duct lesions using a novel tapered-tip sheath system to facilitate biliary biopsies

Matsumori, Tomoaki; Uza, Norimitsu; Okada, Hirokazu; Shiokawa, Masahiro; Maruno, Takahisa; Kuwada, Takeshi; Yoshida, Hiroyuki; Yasuda, Muneji; Yamazaki, Hiroyuki; Taura, Kojiro; Hatano, Etsuro; Kodama, Yuzo; Seno, Hiroshi

doi:10.1016/j.gie.2023.02.005

Cited by 4 publications

(5 citation statements)

References 41 publications

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“…The novel endoscopic tapered sheath (EndoSheather) was initially designed to acquire biopsy samples to diagnose biliary strictures 4 . This device facilitates the smooth insertion of biopsy forceps to the targeted lesion during endoscopic retrograde cholangiopancreatography.…”

Section: Discussionmentioning

confidence: 99%

“…The novel endoscopic tapered sheath (EndoSheather) was initially designed to acquire biopsy samples to diagnose biliary strictures. 4 This device facilitates the smooth insertion of biopsy forceps to the targeted lesion during endoscopic retrograde cholangiopancreatography. It also features a tapered tip on the inner catheter and a closely fitting outer sheath, which ensures excellent pushability and serves as a dilation device.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, we have developed a novel stent deployment technique using an endoscopic tapered sheath (EndoSheather; Piolax, Inc.) 3,4 ; this device serves as a dilation tool and a delivery system, allowing for mechanical dilation of the needle tract and the smooth insertion F I G U R E 1 Appearance of the endoscopic tapered sheath (EndoSheather). (a) Minimal difference in caliber between the inner catheter and the outer sheath at the device tip.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, we have developed a novel stent deployment technique using an endoscopic tapered sheath (EndoSheather; Piolax, Inc.) 3 , 4 ; this device serves as a dilation tool and a delivery system, allowing for mechanical dilation of the needle tract and the smooth insertion of a drainage stent through its indwelling outer sheath, which effectively bridges the gap to the target space. This eliminates the need to remove the dilation device and can prevent bile leakage in EUS‐BD.…”

Section: Introductionmentioning

confidence: 99%

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The novel technique of drainage stenting using a tapered sheath dilator in endoscopic ultrasound‐guided biliary drainage

Kato,

Yoshida,

Hori

et al. 2023

DEN Open

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During endoscopic ultrasound‐guided biliary drainage (EUS‐BD), there is a risk for bile leakage until stent deployment, which can result in severe peritonitis, particularly when passing a drainage stent becomes challenging despite tract dilation. There is no established method or dedicated device to optimize EUS‐BD. Therefore, we have developed a novel stent deployment technique using the tapered sheath dilator. To address the safety and technical aspects of the EUS‐BD technique, we retrospectively analyzed 11 consecutive patients who underwent EUS‐BD using the tapered sheath dilator. The procedure involved the insertion of a guidewire, followed by mechanical dilation using the tapered sheath dilator. Subsequently, the inner catheter was removed and drainage stents (up to 6 Fr in diameter) were deployed through the outer sheath. We found a 100% technical success rate for tract dilation and stent deployment; moreover, all patients achieved clinical success. The median time for dilation was 40 s (range, 8–198), whereas the median time from dilation to stent deployment was 10 min (range, 6–19). Notably, no cases of bile leakage or peritonitis were observed. In conclusion, the use of the integrated device for tract dilation and stent delivery system might provide a safe and straightforward technique for drainage stenting during EUS‐BD.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Therefore, we have developed a novel stent deployment technique using an endoscopic tapered sheath (EndoSheather; Piolax, Inc.) 3 , 4 ; this device serves as a dilation tool and a delivery system, allowing for mechanical dilation of the needle tract and the smooth insertion of a drainage stent through its indwelling outer sheath, which effectively bridges the gap to the target space. This eliminates the need to remove the dilation device and can prevent bile leakage in EUS‐BD.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The novel technique of drainage stenting using a tapered sheath dilator in endoscopic ultrasound‐guided biliary drainage

Kato,

Yoshida,

Hori

et al. 2023

DEN Open

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show abstract

“…However, thick guidewires tend to have a poor seeking ability, and passing through a long and strong stenosis is often a challenge. Recently, Matsumori et al 1 . reported that a novel tapered‐tip sheath system (EndoSheather; Piolax Medical Devices, Kanagawa, Japan; Fig.…”

Section: Brief Explanationmentioning

confidence: 99%