Infections After Liver Transplantation: A Retrospective, Single-center Study

Area of Science:

• Hepatology
• Transplant Surgery
• Infectious Diseases

Background:

• Liver transplantation (LT) is a life-saving procedure.
• Post-transplant infections pose a significant risk to patient outcomes.
• Understanding infection patterns is crucial for improving patient care.

Purpose of the Study:

• To determine the incidence of infectious complications following liver transplantation.
• To identify common pathogens and infection sites.
• To explore clinical factors associated with post-LT infections.

Main Methods:

• Retrospective, single-center study of patients undergoing LT between January 2008 and December 2011.
• Exclusion of patients who died within 48 hours post-LT.
• Analysis of infection sites, bacterial isolates, and recipient, graft, surgical, and post-LT clinical data.

Main Results:

• 41% of patients (190/463) developed at least one infection post-LT.
• Gram-positive bacteria, particularly Staphylococcus spp., were the most frequent isolates (51%).
• Biliary infections were common; gram-negative bacteria became more prevalent after 3 months.
• Infected patients required more blood transfusions, vasopressors, hemodialysis, and had longer hospital stays.

Conclusions:

• The incidence of infections within 2 years post-LT was 41%.
• Initial infections were often caused by gram-positive bacteria, with a shift towards gram-negative bacteria later.
• Post-LT clinical data, rather than donor variables, were more predictive of infection development.