Efficacy of a newly developed guidewire for selective biliary accessopen access
- Authors
- Park, Do Hyun; Han, Joung-Ho; Lee, Tae Hoon; Yang, Jae Kook; Lee, Ji Sung; Lee, Yong Hun; Takenaka, Mamoru; Park, Sang-Heum
- Issue Date
- May-2023
- Publisher
- Nature Publishing Group
- Citation
- Scientific Reports, v.13, no.1
- Journal Title
- Scientific Reports
- Volume
- 13
- Number
- 1
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/25172
- DOI
- 10.1038/s41598-023-34846-w
- ISSN
- 2045-2322
- Abstract
- A clinical efficacy study of 0.025-inch guidewires (GWs) according to mechanical property analysis has not been reported yet. This study was designed to evaluate the clinical efficacy of a newly developed 0.025-inch GW for biliary access according to the basic mechanical property. Commercially available 0.025-inch GWs were in vitro tested based on parameters of mechanical property. Patients with naive papilla requiring diagnostic or therapeutic ERCP were randomly assigned to an experimental 0.025-inch newly developed GW or a control 0.025-inch GW group. Technical success rate of wire-guided cannulation (WGC), difficult biliary cannulation (DBC), and adverse event rates were measured in this multicenter randomized trial. The technical success rate of primary WGC was 79.1% (151 of 191) in the experimental group and 70.8% (131 of 185) in the control group (95% two-sided confidence interval: 8.25%; p < 0.001; for a noninferiority margin of 15%). The technical success rate including cross-over to each other was also non-inferior. However, the chi-square test showed a statistical difference (81.7% vs. 68.1%; p = 0.002). Median biliary cannulation time was shorter in the experimental group (53 s vs. 77 s; p = 0.047). The rate of DBC was more frequent in the control group (34.6% vs. 50.3% p = 0.002). Multivariate analysis revealed that control group was one of contributing factors for DBC. Overall rate of post-ERCP pancreatitis was not different (4.7% vs. 8.6%; p = 0.125). WGC using a newly developed GW with superior physical performance GW in a bench test showed similar clinical efficacy and the rate of DBC was significantly lower in experimental GW.
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