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Enterococcal bactibilia in patients with malignant biliary obstruction
T Nomura1, Y Shirai, K Hatakeyama
1Department of Surgery, Niigata University School of Medicine, Niigata City, Japan.
Digestive Diseases and Sciences
|February 24, 2001
Summary
Preoperative antibiotics alter bile bacteria in patients with malignant biliary obstruction, significantly increasing Enterococcus. This specific bacteria is linked to postoperative septic complications, highlighting a critical need for careful antibiotic stewardship.
Area of Science:
- Gastroenterology
- Surgical Oncology
- Infectious Diseases
Background:
- Biliary obstruction from pancreaticobiliary malignancy frequently leads to bactibilia (bacteria in bile).
- Understanding the impact of preoperative antibiotics on bile flora is crucial for managing these patients.
- Identifying bacteria associated with postoperative complications is essential for improving patient outcomes.
Purpose of the Study:
- To investigate how preoperative antibiotic administration affects bile bacterial flora in patients with malignant biliary obstruction.
- To determine which specific bile bacteria are responsible for postoperative septic complications.
Main Methods:
- Retrospective analysis of 84 patients undergoing biliary decompression prior to surgery for malignant biliary obstruction.
- Preoperative bile cultures were analyzed for bacterial species.
- Correlation between preoperative bile bacteria and postoperative septic complications was assessed.
Main Results:
- Bactibilia was present in 75% of patients.
- Preoperative antibiotic use significantly increased the incidence of enterococcal bactibilia (from 16% to 63%).
- Enterococcus species were strongly associated with the occurrence of postoperative septic complications (P = 0.037).
Conclusions:
- Preoperative antibiotic use alters bile bacterial flora, notably increasing Enterococcus.
- Enterococcus species are a significant risk factor for postoperative septic complications in this patient group.
- These findings underscore the importance of judicious antibiotic use and targeted strategies to mitigate Enterococcus-related complications.