Carbapenems versus ciprofloxacin/metronidazole for decreasing complications and hospital stay following complicated acute appendicitis surgery: A prospective cohort in an Ecuadorian population.

Background: After appendectomy due to complicated acute appendicitis (CAA), there are some alternatives as antibiotic scheme: ciprofloxacin/metronidazole; as well as monoscheme based on carbapenems: ertapenem, meropenem, and imipenem.

Aim: This study aims to prove the efficacy of carbapenems versus ciprofloxacin/metronidazole in CAA post-operative management in terms of preventing complications during post-operative period and decreasing hospital stay.

Materials And Methods: This was an observational, analytical, longitudinal, and prospective cohort study (March 2014-November 2016). Patients were classified into two groups, according to the prescribed antibiotic scheme: some carbapenems or ciprofloxacin/metronidazole.

Results: Ninety-eight patients were enrolled. There was an requirement for antibiotic therapy rotation only in the ciprofloxacin/metronidazole (7/49, 14.3%; p = 0.004). Carbapenems reached a mean hospital stay of 4.45 days, in contrast with ciprofloxacin/metronidazole, 8.29 days (p = 0.020). In post-surgical follow-up, there were more cases of curative resolution in the group in the carbapenems group (35/49 vs. 15/49 p < 0.001) as well as a greater number of cases with some late infection in the ciprofloxacin/metronidazole group (1/49 vs. 10/49, p = 0.010).

Conclusion: In the post-operative management of CAA, carbapenems represent an important indication to be considered as first-line antibiotic therapy.