Factors Affecting Outcomes of Cardiopulmonary Resuscitation in a Nephro-Urology Unit: A Retrospective Analysis

Availability of cardiopulmonary resuscitation (CPR) data from India is limited in published literature and data on patients with renal disease even more so. Documented survival-to-discharge rates worldwide range from 8 to 15% in renal disease as compared to 25% in the general population.

An institution-wide format for collection of cardiac arrest data was introduced in late 2015. We have analyzed all adult onsite cardiac arrests from January 2016 to December 2019. Patient characteristics and CPR parameters were both studied in detail. Primary endpoint was defined as survival to discharge. Association between patient and treatment characteristics and survival to discharge was studied.

Successful CPR resulting in patient discharge occurred in 28 (31.4%) out of 89 patients. A very strong association was found between mortality and prolonged CPR (p <0.00001). Events occurring out of hours (p = 0.0029), patients admitted in the intensive care unit (ICU) (p = 0.03), initiated on inotropes (p = 0.003), and patients already on a ventilator (p = 0.0018) had poorer outcomes. Sepsis as the etiology emerged as the most significant association with mortality (p = 0.0007). Patient characteristics such as age, sex, presence or absence of chronic kidney disease, type of dialysis treatment, and vintage were found to be insignificant.

Analysis revealed survival to discharge of 31.4%. Sepsis in association with renal disease has been found to be consistent with higher risk for mortality. Other factors such as an out of hours event, admission to ICU, early intubation and inotrope initiation were associated with worse outcomes.

Sharma S, Raman P, Sinha M, Deo AS. Factors Affecting Outcomes of Cardiopulmonary Resuscitation in a Nephro-Urology Unit: A Retrospective Analysis. Indian J Crit Care Med 2022;26(3):322-326.