Endoscopic ultrasonography-guided gallbladder drainage (EUS-GBD) using the current
plastic stent (PS) system requires multiple steps for stent deployment and carries
the risk of bile leakage from the puncture site. In this study, we developed a single-step
PS system that includes a 3F electrocautery metal tip on the inner sheath mounted
with a 7F/4-cm double-pigtail PS and experimentally evaluated it on a gallbladder
model mimicking EUS-GBD. We assessed procedure time, intra-gallbladder pressure-drop
ratios, and bile leakage using a newly developed single-step PS system, comparing
it with the current PS system during drainage attempts on a gallbladder model. Mean
duration times for the three attempts were 2 minutes 59 seconds and 27 seconds for
the current PS system and the newly developed PS system groups, respectively (P < 0.001). Mean intra-gallbladder pressure-drop ratios were 86.7% in the current PS
system group and 7.6% in the newly developed PS system group (P < 0.001). The newly developed PS system prevented bile leakage from the puncture
site. The newly developed PS system saved significant time, maintained intra-gallbladder
pressure, and prevented bile leakage during the procedure when compared with the current
PS system.
Bibliographical Record
Tesshin Ban, Yoshimasa Kubota, Takashi Joh. Newly developed plastic stent delivery
system for endoscopic ultrasonography-guided gallbladder drainage: Experiments on
gallbladder models. Endosc Int Open 2025; 13: a27340383.
DOI: 10.1055/a-2734-0383
