The Prevalence of Cardiac Arrhythmias in COVID-19 Patients Undergoing CRRT During the First 24 Hours of ICU Admission.

Background: This study aimed to determine the prevalence of cardiac arrhythmias in COVID-19 patients undergoing Continuous Renal Replacement Therapy (CRRT) during the first 24 hours of ICU admission. Methods: This cross-sectional study was conducted to assess the prevalence of cardiac arrhythmias among 78 COVID-19 patients undergoing CRRT hemoperfusion during the first 24 hours of hospitalization in the ICU of Kowsar Hospital, Semnan, in 2020. Data were collected using a checklist that included demographic characteristics, underlying diseases, and types of cardiac arrhythmias, extracted from patients' medical records in the hospital's medical records department. Data analysis was performed using SPSS software, version 26. Results: The mean (± SD) age of the patients was 54.68 ± 1.61 years. The proportions of males and females were 41% and 59%, respectively. The overall prevalence of cardiac arrhythmia was 21.8%, with bradycardia being the most common type (7.7%). The prevalence rates of heart disease, hypertension, diabetes, and hyperlipidemia were 48.7%, 39.7%, 28.2%, and 26.9%, respectively. Additionally, 20.5% of patients had a history of cardiovascular disease. No statistically significant associations were found between cardiac arrhythmia and age, gender, or underlying conditions such as heart disease, hypertension, diabetes, and hyperlipidemia ( Conclusion: Our study demonstrated a substantial prevalence of cardiac arrhythmia in COVID-19 patients undergoing CRRT within the first 24 hours of ICU admission. The findings emphasize the importance of recognizing this vulnerable period for arrhythmia development and highlight the need for proactive measures to mitigate risks in this high-risk population.