Factors affecting post-operative mortality in malignant biliary tract obstruction

Area of Science:

• Gastroenterology
• Surgical Oncology
• Clinical Research

Background:

• Malignant obstruction is a significant risk factor for post-operative mortality.
• Factors influencing mortality in malignant obstruction surgery require further investigation.

Purpose of the Study:

• To identify independent risk factors for post-operative mortality in patients with malignant biliary obstruction.
• To analyze clinical and laboratory parameters associated with increased mortality.

Main Methods:

• Retrospective analysis of 24 clinical and laboratory parameters.
• Study included 52 patients undergoing biliary tract surgery for malignant obstruction.
• Multivariate analysis was used to determine independent risk factors.

Main Results:

• Simple regression identified 24 prognostic factors.
• Multivariate analysis revealed three independent predictors of mortality: cholangitis, weight loss (≥10 kg), and blood transfusion (operative or post-operative).
• Patients with two of these risk factors had a 37% mortality rate.

Conclusions:

• Pre-operative cholangitis, marked weight loss, and blood transfusions are associated with high post-operative mortality in malignant biliary obstruction surgery.
• Key challenges include preventing cholangitis, improving nutritional status, and avoiding unnecessary blood transfusions in high-risk patients.