Clinico-microbiological evaluation of post-cesarean surgical site infections

Abstract

With increasing rates of cesarean section (CS), the incidence of post-operative complications is bound to increase, which includes surgical site infections (SSIs), being one of the common and distressing complication. This study was aimed to evaluate the various determinants of post-CS SSI, their clinical spectrum, prevalent microbiology, and their susceptibility and resistance patterns. This was a prospective longitudinal hospital-based study undertaken in Government Medical College and Hospital (GMCH), Chandigarh. Six hundred and eighty-eight patients were included from April, 2021, to September, 2022, and were followed up till 42nd day post-procedure. The incidence of SSI in the study was 3.49%. The risk factors identified were gestational diabetes mellitus (GDM), thrombocytopenia, chorioamnionitis, prolonged labor, multiple per vaginum examinations, prolonged surgery, post-partum hemorrhage, and blood and blood product transfusions. Most patients presented on or after day 8 of surgery with discharge from the wound site being the most common presentation. Staphylococcus aureus emerged as the most prevalent organism and out of five patients having S. aureus, three had methicillin-resistant S. aureus. Linezolid was found to be the most susceptible antibiotic, whereas ciprofloxacin was mostly resistant among the prevalent isolates. Some of these determinants are modifiable such as GDM and thrombocytopenia and if detected and managed early may help in reducing the risk of developing SSI. Linezolid must be used empirically for treatment of SSI until the reporting of culture and sensitivity is done because routine antibiotics used for antibiotic prophylaxis in CS were found to be highly resistant. Periodic analysis of clinical spectrum and culture and sensitivity patterns is imperative for the early diagnosis and appropriate empirical management of SSI.