Clinical characteristics and bacterial culture in complicated appendicitis at Hue University of Medicine and Pharmacy Hospital

Abstract

Objectives: To evaluate the clinical, laboratory features, bacterial culture outcomes, and antibiotic susceptibilities of these bacteria in intraoperative samples from patients with perforated appendicitis and to establish whether they influence postoperative outcomes. Materials and methods: A descriptive study was conducted on 68 laparoscopic surgery patients from June 2022 to March 2023 at the Digestive Surgery Department, Hue University of Medicine and Pharmacy Hospital. Results: The male/female ratio is 1.2. The mean age was 37.5 ± 25.7. The mean time of the symptom onset was 37.2 ± 29.1 hours; CRP increased in 86.8% of cases. The average postoperative hospital stay was 6.3 ± 2.2 days; Postoperative complications were observed in 20.6%. Peritoneal fluid samples yielded a positive culture in 58 (85.3%); Gram-negative bacteria were isolated in 89.7%; gram-positive bacteria were isolated in 10.3%; polymicrobial growth was observed in 29.4% of the patients. E. coli in 67.6%, P.aeruginosa in 10.3%, Enterobacter spp. in 8.8%, Klebsiella spp. in 4.4%, Citrobacter spp. in 3%; positive ESBL was present in 17 (37%) of the 46 E. coli strains, ESBL was positivity detected in one of Morganerlla morganii strains. In E. coli, ampicillin resistance was 88.6%, amoxicillin-clavulanic acid resistance was 61.5%, and Trimethoprim-sulfamethoxazole resistance was 65%. Conclusion: It is necessary to choose treatment regimens based on local bacteriology and resistance status to optimize empiric empirical postoperative antibiotic regimens. Key words: perforated appendicitis, ESBL, complications, bacteria culture.