Changing Critical Care Patterns and Associated Outcomes in Mechanically Ventilated Severe COVID-19 Patients in Different Time Periods: An Explanatory Study from Central India.

Background: The outcomes in critical illness depend on disease severity, practice protocols, workload, and access to care. This study investigates the factors affecting outcomes in mechanically ventilated coronavirus disease-2019 acute respiratory distress syndrome (COVID-19 ARDS) patients admitted in a tertiary teaching hospital intensive care unit (ICU) in Central India with reference to different time periods in pandemic. This is one of the largest series of mechanically ventilated COVID-19 ARDS patients, globally. Methods: This retrospective cohort study classified the entire data into four time periods (Period 1: April 2020 to June 2020; Period 2: July 2020 to September 2020; Period 3: October 2020 to December 2020; and Period 4: January 2021 to April 2021). We performed a multivariable-adjusted analysis to evaluate predictors of mortality, adjusted for baseline-severity, sequential organ failure assessment (SOFA score) and time period. We applied mixed-effect binomial logistic regression to model fixed-effect variables with incremental complexity. Results: Among the 56 survivors (19.4%) out of 288 mechanically ventilated patients, there was an up-gradient of survival proportion (0, 18.2, 17.4, and 28.6%) in four time periods. Symptom-intubation interval (OR 1.16; 95% CI 1.03-1.31) and driving pressures (DPs) (OR 1.17; 95% CI 1.07-1.28) were significant predictors of mortality in the model having minimal AIC and BIC values. Patients aged above 60 years also had a larger effect, but statistically insignificant effect favoring mortality (OR 1.99; 95% CI 0.92-4.27). The most complex but less parsimonious model (with higher AIC/BIC) indicated the protective odds of high steroid on mortality (OR 0.59; 95% CI 0.59-0.82). Conclusion: The outcomes in mechanically ventilated COVID-19 ARDS patients are heterogeneous across time windows and may be affected by the complex interaction of baseline risk and critical care parameters. How to cite this article: Saigal S, Joshi A, Panda R, Goyal A, Kodamanchili S, Anand A, et al. Changing Critical Care Patterns and Associated Outcomes in Mechanically Ventilated Severe COVID-19 Patients in Different Time Periods: An Explanatory Study from Central India. Indian J Crit Care Med 2022;26(9):1022-1030.

Effect of Remdesivir Administration on Occurrence of Major Adverse Cardiac Events in Critically Ill COVID-19 Pneumonia: A Retrospective Observational Study.

Background and objectives: Major adverse cardiac events (MACE) are frequent in coronavirus disease-2019 (COVID-19). Remdesivir is used worldwide for treatment in COVID-19. In this retrospective observational study, our primary objective was to assess the impact of remdesivir administration on the incidence of MACE and associated 28 day survival in critically ill patients admitted for moderate to severe COVID-19 pneumonia. Patients and methods: We analyzed the data of 437 patients admitted in intensive care unit (ICU) and divided them into two groups: R group (received remdesivir at ICU admission) and NR group (nonremdesivir) or based on the occurrence of MACE in ICU. We followed the data until discharge, death, or 28 days postadmission. Our primary objective was to investigate the log-odds of survival with remdesivir administration and a correlation/regression analysis of MACE with remdesivir administration in all included patients. Results: The incidence of MACE was 72 among 437 patients, with 17 (9.3%) patients in R group vs 55 (21.8%) in NR group (p <0.001). On performing correlation analysis between MACE and remdesivir administration, significant correlation coefficient of -0.168 (p = 0.004) was obtained. On regression analysis, the odds ratio for occurrence of MACE with remdesivir administration was 0.362 (regression coefficient: -1.014, p <0.001). It indicates a 64% decrease in the log-odds of MACE and a 16% increase in the log-odds of survival with remdesivir administration. All 72 patients with MACE had expired, suggesting a high mortality risk with cardiac complications. The odds ratio for mortality due to MACE with remdesivir administration was 0.216 (regression coefficient: -1.530, p -<0.001). It indicates a 79% decrease in the log-odds of death due to MACE with remdesivir administration. Conclusion: Our study showed significant reduction in MACE and mortality benefit in patients who received remdesivir in comparison to standard treatment. How to cite this article: Panda R, Singh P, Jain G, Saigal S, Karna ST, Anand A, et al. Effect of Remdesivir Administration on Occurrence of Major Adverse Cardiac Events in Critically Ill COVID-19 Pneumonia: A Retrospective Observational Study. Indian J Crit Care Med 2022;26(9):993-999.