Left versus right-sided percutaneous transhepatic biliary drainage in relief of malignant obstruction

Abstract

Background: Biliary tree obstruction and consequent jaundice occur in 70%–90% of these patients and have important consequences mainly for the patient's quality of life, morbidity, and overall mortality. Percutaneous transhepatic biliary drainage (PTBD) is an excellent palliative procedure to drain the bile ducts in malignant obstruction. We compared left- and right-sided approach in relief of malignant obstruction. The most common causes of malignant biliary obstruction (MBO) include pancreatic adenocarcinoma, hilar cholangiocarcinoma, ampullary/duodenal adenocarcinoma, gallbladder adenocarcinoma, lymphoma, and compressive metastatic peri-portal lymph node Materials and Methods: This study was a prospective, hospital-based study performed for 2 years from 2016 to 2018. PTBD was performed either through right in 16 patients or left approach in 15 patients. Two approaches were compared in terms of clinical and technological success, changes in laboratory data, internalization and survival. Results: (1) Rate of technological success was 100%. (2) There was a significant reduction in bilirubin, alanine transaminase (ALT), and alkaline phosphatase (ALP) levels after the procedure in both the approaches, but the decrease was more in the right-sided approach. Only the decrease in bilirubin levels was statistically significant. The decrease in albumin was attributed to the progression of the disease. (3) Clinical success was seen in 93.33% and 93.75% in left- and right-sided approach. (4) Internalization was done in 86.67% patients in the left-lobe approach, while as in right-lobe approach, it was done in 93.75% patients. Conclusion: PTBD causes a significant reduction in the bilirubin level, irrespective of the amount of liver drained or the type of drainage (external/internal). In our study, the reduction in bilirubin, ALT and ALP was more in the right-lobe approach. However, only reductions in levels of bilirubin were statistically significant.