Aerosol-generating procedures, how best did anesthesiologists use available personal protective equipment during early COVID-19 pandemic in a tertiary care center of southern India? A prospective cross-sectional study.

ABSTRACT

Background and Aims: Anesthesiologists are involved in high-risk procedures for transmission of SARS-CoV-2 like aerosol-generating procedures (AGPs). The present study was conducted to assess the compliance toward the use of personal protective equipment (PPE) and proposed modifications in anesthesia techniques to prevent dissemination of the virus among healthcare workers. Material and Methods: This prospective cross-sectional study was conducted during the first wave of the COVID-19 pandemic and included all elective surgeries involving AGPs inside operation theatres and remote areas. Participants were anesthesia consultants and trainees. Trained anesthesia technicians observed and documented all the AGPs and data entry with analysis was done using EPI Data 3.1, SPSS 21.0. Descriptive statistics were reported using mean ± SD for continuous variables. Results: Preoperative COVID-19 test was done in 96.3% of patients. Most (74.8%) of the AGPs were performed by consultants. In our study, compliance for N95 masks usage and hand hygiene was found to be 99.2% and 55.9%, respectively. Avoidance of crowding was followed in only 38.9% during intubation. To contain the aerosol-based spread of virus, modification of anesthesia practices like acrylic boxes (6.4%), plastic sheets (5.5%), video laryngoscopy (39%), rapid sequence intubation (RSI) (42.7%), and 59.3% of deep extubation were incorporated. Conclusion: In our study, we found satisfactory compliance toward usage of N95 masks alone, whereas compliance toward other available PPE and modification in anesthesia practice was found to be unsatisfactory.