The effect of passive leg elevation maneuver on prognosis in patients undergoing cardiopulmonary resuscitation with a mechanical chest compression device in the emergency department

Objective: In this study, it was aimed to investigate the effect of cardiopulmonary resuscitation (CPR) on survival and prognosis by elevating both legs of the patients with Mechanical Chest Compression Device (MCCD) in patients who were brought to the emergency department of our hospital as cardiopulmonary arrest (CPA) or who developed CPA in the emergency department follow-up. Materials and Methods: Our study is a prospective observational study. Patients who were admitted to Bolu Abant İzzet Baysal University Training and Research Hospital Emergency Service as non-traumatic cardiac arrest between 15/02/2022-- 15/08/2022 or who developed cardiac arrest due to non-traumatic causes during follow-up in the emergency department were included in our study. CPR was applied to the patients with MGCC and elevating the legs. Arrest site-etiology, duration of CPR, blood gas were examined in patients with Spontaneous Circulatory Recovery (ROS) and its effects on survival and prognosis were compared. SPSS™ (Statistical Package for the Social Sciences) version 28.0 program was used for statistical analysis of the data obtained. Results: The study was evaluated on 84 patients. While the mean age of the patients was 74.44±13.53, the number of men and women was equal to 42. While out-ofhospital cardiac arrest (OHCA) developed in 32.14% of the patients, in-hospital cardiac arrest (IHCA) developed in 67.86%. In the etiology of arrest, cardiac causes were found in 42.86% of the patients and non-cardiac causes were found in 57.14% of the patients. Patients with a CPR time of <10 minutes had a significantly higher 1-month survival than patients with a CPR time of >30 minutes (p:0.000). The rate of ROSC was statistically significantly higher in IHCA cases (p=0.002). The survival time of OHCA cases shorter than 24 hours was statistically significantly vi higher compared to HICA cases (p=0.029). 1-month survival in cardiac arrests was statistically significantly higher (p=0.009). Conclusion: In the study, we found that when MCCD and leg elevation were applied together, it increased the effectiveness of CPR, and accordingly, it positively affected ROSC and prognosis.