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Background: Bactibilia, or the presence of bacteria in bile from the gallbladder, may contribute to the development of septic complications. It has been related to increased rates of surgical site infection after cholecystectomy. Laparoscopic cholecystectomy is the definitive treatment for cholelithiasis and cholecystitis. Advanced age, acute cholecystitis, ERCP, and gallstones are important risk factors for the development of bactibilia. This study aims at showing the effect of bactibilia on the course of laparoscopic cholecystectomy. Materials and methods: This are a prospective case-control study to be conducted at Govt. General Hospital, Vijayawada at Dept. of General Surgery over 1 year on 50 patients. Patients with asymptomatic Cholelithiasis of age 18-60 are included in the study and patients with hemoglobin < 10 gm%, hypoalbuminemia < 2.5 gm/dL, patients in acute sepsis, patients with HbA1c >6.5%, hypertension (>139/89 mm of Hg) and BMI > 30 and patients in an emergency setting and patients who have not consented for the study were excluded from the study. None of the patients received pre-operative antibiotics. Intra-operatively, bile is collected from the gall bladder and sent for microbiological culture in aerobic and anaerobic media for 3-5 days. Patients are divided into: Group A - Microbiological culture positive for microbes and Group B - Microbiological culture sterile. Both groups will be analyzed for the duration of hospitalization after surgery, post-operative wound infection, and any other complications encountered. Results: Out of the 50 patients, 32 were males and 18 were females. The mean age of the patients was 43.5 ± 9.6 years. The mean BMI was 27.1 ± 4.7. Of the total 25 samples positive for bile culture, 11 were E. coli, 7 were Klebsiella, 3 were Enterobacter spp., 2 were Acinetobacter spp., and the remaining were 2 Viridans streptococci. All the bacteria were sensitive to Amikacin. All except Acinetobacter were sensitive to gentamycin and imipenem. All except one case of E.coli were susceptible to ciprofloxacin. The incidence of port site infection, prolonged fever, intra-abdominal abscess, pneumonia, wound healing duration, and hospital stay were significantly higher in group A compared to group b (pvalue < 0.05). Conclusion: Bactibilia affects the outcomes of laparoscopic cholecystectomy in terms of prolonged hospital stay, increased incidence of wound infection, duration of wound healing, and fever. [ABSTRACT FROM AUTHOR]

Background: Patients with periampullary tumors frequently undergo endoscopic biliary investigations and biliary drainage (BD) prior to surgery. Recent literature shows a shift of the biliary microbiome toward more resistant bacteria in patients having BD. This study aimed to evaluate the local microbiome and changes induced by BD and related antibiotic exposure and to consider the choice of antibiotic for peri-operative prophylaxis. Methods: A single-center retrospective cohort study included patients operated on for periampullary tumors between January 2013 and November 2017. All patients had intra-operative bile samples taken for culture and peri-operative antibiotic use as well as documentation of complications according to the Dindo-Clavien classification. Results: A total of 37 patients were included. All received pre-operative endoscopy, and 29 (78%) had BD preceded by administration of ceftriaxone or metronidazole. Intra-operative antibiotic prophylaxis consisted of cefuroxime (92%) or ceftriaxone (13%) combined with metronidazole (100%). Bacterial contamination of bile samples was more common in the BD group than in the no biliary drainage (NBD) group (93% vs 38%; p < 0.01). A shift was observed from bile containing mainly Escherichia coli and Streptococcus spp. toward Enterococcus faecalis (0 in the NBD group versus 44.8% in the BD group; p < 0.01), Enterococcus faecium (0 versus 23%; p = 0.3), and Candida albicans (0 versus 34.5%; p = 0.08). Post-operative antibiotic modifications were common. No difference was found regarding Dindo-Clavien complications, post-operative stay, or antibiotic use in the two groups, although one patient in the NBD group who had pre-operative biliary endoscopy with antibiotic prophylaxis developed a fatal septic clot caused by Escherichia coli resistant to cefuroxime. Conclusions: We observed a significant change toward colonization by enterococci and fungi in the microbiome of patients who had pre-operative biliary investigations or drainage with antibiotic prophylaxis. These findings indicate that bile samples should be obtained systematically during surgery for periampullary tumors to guide any post-operative antibiotic therapy and peri-operative antibiotic prophylaxis and might need adaptation to target the modified microbiome. [ABSTRACT FROM AUTHOR]

The aim of this study was to correlate the bactibilia found after preoperative biliary stenting with that of the bacteriology of postoperative infectious complications in patients with obstructive jaundice. One hundred thirty-eight patients (83% malignant and 17% benign etiologies) with obstructive jaundice had both their bile and all postoperative infectious complications cultured. Eighty-six (62%) had preoperative biliary stents (stent group) and 52 (38%) did not (no-stent group). There were no differences for age, sex, incidence of malignancy, type of operation, estimated blood loss, transfusion requirements, hospital length of stay, morbidity, or mortality rates between the two groups. Of 31 infectious complications, 23 were in the stent group and eight were in the no-stent group (P > 0.05), but only 13 (42%) infectious complications had bacteria that were also cultured from the bile. Only wound infection (P = 0.03) and bacteremia (P = 0.04) were more likely to occur in stented patients. Taken together, these data show that preoperative biliary stenting increases the incidence of bactibilia, bacteremia, and wound infection rates but does not increase morbidity, mortality, or hospital length of stay. Jaundiced patients can undergo preoperative biliary stenting while maintaining an acceptable postoperative morbidity rate. [Copyright &y& Elsevier]