A prospective study of wound infection among post-discharge patients at a level 1 trauma centre of India.

Background And Aim: To study the rate of wound infections in the post-discharged patient population and to assess the usefulness of post-discharge surveillance.

Methods: A prospective surveillance of all the post-discharged trauma patients was done during a period of 6 months. Discharge instructions were given to all the patients regarding identification of the signs and symptoms of wound infections. They were telephonically followed up after a week to enquire about the wound condition and followed up in the outpatient department (OPD). Microbiology culture samples of those showing any signs and symptoms of infections were sent and their antimicrobial therapy, any change in the treatment schedule and the length of their hospital stay were noted. Factors such as wound class, type of surgeries and readmissions were noted.

Results: A total of 281 postdischarge patients were enrolled, of which 101 were completely followed up for wound infections. Males were predominant (89%). Of the 101 patients, 42 (41.6%) patients wound showed infection during the intense follow-up in the OPD. However, 59 patients (59/101, 58.4%) showed wound swab culture positivity before discharge. These 42 patients developed signs and symptoms of infection post-discharge; 23 (22.7%) of them had change of antibiotic therapy during the follow-up period due to culture positivity. Acinetobacter sp., Staphylococcus aureus and Klebsiella pneumoniae were the predominant organisms isolated in the study. A total of 45 patients (44.5%) had to be readmitted due to wound site infections.

Conclusions: Wound infections are common after discharge among trauma patients highlighting the importance of active surveillance and participation of patients.