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DOI: 10.1055/s-0044-1800877
A Retrospective Analysis Comparing Technical Difficulty and Safety between Right and Left-sided Percutaneous Transhepatic Biliary Drainage in a Nondilated Biliary System
Funding None.

Abstract
Objective The aim of this study was to compare the technical difficulty and safety between right-sided percutaneous transhepatic biliary drainage (R-PTBD) and left-sided percutaneous transhepatic biliary drainage (L-PTBD) in patients with nondilated bile ducts.
Materials and Methods Forty-two patients (22 males and 20 females with a mean age of 46.2 ± 13.7 years) who received PTBD in nondilated bile ducts (from September 2021 to January 2024) were dichotomized into the R-PTBD (n = 22) and L-PTBD (n = 20) groups. The number of needle punctures, successful biliary punctures, technical success, difficulty in catheter placement, total fluoroscopic time, total procedure time, overall complications, and hemorrhagic complications were evaluated and compared between the groups.
Results The R-PTBD group had significantly fewer needle punctures for biliary access (3.9 ± 1.3 vs. 4.3 ± 1.3; p = 0.004) and a shorter procedure duration (21 ± 8.5 vs. 29.9 ± 13.2 minutes; p = 0.021) than the L-PTBD group. The successful biliary puncture (20 [90.9%] vs. 15 [75%]; p = 0.229) and technical success rate (20 [90.9%] vs. 14 [70%]; p = 0.123) were also higher for the R-PTBD group than for the L-PTBD group, while R-PTBD required less fluoroscopic time (5.83 [3.5–8.13] vs. 8.16 [4.34–12.9] minutes; p = 0.113). However, these differences did not reach statistical significance (p > 0.05). Further, difficulty during catheter placement was more frequently encountered in the L-PTBD group (02 [9%] vs. 04 [20%]; p = 0.367). The overall complication and hemorrhagic complication rates were comparable between both groups.
Conclusion When both approaches are equally suitable for patients with nondilated bile ducts, R-PTBD may be favored over L-PTBD, given the evidence demonstrating less technical difficulty in the right-sided approach than in the left-sided approach.
Keywords
percutaneous transhepatic biliary drainage - nondilated bile ducts - right-sided versus left-sided PTBD - adverse events - benign biliary system - obstructive biliopathyData Availability Statement
Supporting data will be available on contacting the corresponding author.
Authors' Contributions
R.K.P., T.P.T., and N.D.B. conceptualized and designed the study. R.K.P., T.P.T., S.M., T.D., S.G., D.D., S.K.B and S.N. collected the data and S.N. analyzed the data. R.K.P. and T.P.T. prepared the first draft of the manuscript. B.D.P., T.D., S.N., H.K.N., and M.K.P. revised the manuscript with their critical and intellectual inputs. All the authors have seen the manuscript and agree to the results and take full responsibility for the work. Both R.K.P. and T.T. have equally contributed and are considered as the co-first authors.
Ethical Approval
The study was performed conforming to the Helsinki Declaration of 1975, as revised in 2000 and 2008 concerning human and animal rights. Ethical approval was waived off as per the institute's policy as it was a retrospective study.
Patient Consent
Patient consent is not required due to the retrospective nature of the study.
Publication History
Article published online:
11 February 2025
© 2025. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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