Abstract

BackgroundObesity is one of the major risk factors for cardiovascular and peripheral vascular diseases. However, the obesity paradox confers survival benefits in heart failure and cardiac surgery patients. Studies examining the outcomes of obese patients following cardiac arrest provided conflicting results.ObjectiveTo study the association between obesity and outcome in patients following cardiac arrest.Materials and methodsWe conducted a retrospective cohort study at a tertiary intensive care unit (ICU). Data were collected from medical records between January 1, 2018 and December 31, 2018, for all adult ICU patients who were admitted to our ICU following a cardiac arrest. Data collected included demographics, anthropometrics, and details of the cardiac arrest. The primary outcome was survival to hospital discharge. Secondary outcomes were duration of mechanical ventilation, ICU, and hospital length of stay.ResultsA total of 126 patients were admitted to the ICU following a cardiac arrest during the study period, of whom 14 patients were excluded due to missing body mass index (BMI) data. Seventy-six patients were non-obese (BMI <30) and 36 patients were obese (BMI ≥30). There was no difference in survival to hospital discharge between obese and non-obese patients (52.8 vs 59.2%, p = 0.52, OR = 0.77, 95% CI 0.35–1.71). Moreover, there was no difference between obese and non-obese patients in ICU length of stay (81.50 vs 76.0 hours, p = 0.42), hospital length of stay (9 vs 10 days, p = 0.63), and duration of mechanical ventilation (55 vs 43 hours, p = 0.30). In the logistical regression analysis, BMI was not associated with improved survival (OR = 0.97, 95% CI 0.92–1.03, p = 0.23).ConclusionFor patients admitted to ICU following cardiac arrest, we could not show that obesity improves survival, length of stay, or duration of mechanical ventilation.How to cite this articleChavda MP, Pakavakis A, Ernest D. Does Obesity Influence the Outcome of the Patients Following a Cardiac Arrest? Indian J Crit Care Med 2020;24(11):1077–1080.

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