Factors Influencing Return of Spontaneous Circulation (ROSC) in Non-Traumatic Out-of-Hospital Cardiac Arrest (OHCA) Patients Managed by the Emergency Medical Service Network in Mueang Maha Sarakham District, Maha Sarakham Province
Keywords:
Cardiopulmonary Resuscitation, Emergency Medical Service Network, Out-of-Hospital Cardiac Arrest, Return of Spontaneous Circulation (ROSC)Abstract
Objective : This study aimed to examine factors influencing the success of out-of-hospital resuscitation of cardiac arrest patients by the Mahasarakham Hospital Resuscitation Network.
Methods : A retrospective analytic study of out-of-hospital cardiac arrest patients who were resuscitated by the Mahasarakham Hospital Rescue Network. The study included 110 patients from October 1, 2023, to September 30, 2024.
Result : This study found that 56 patients (50.9%) successfully regained vital signs. The mean age was 62.2 years (SD 15.1). The most common underlying disease was hypertension (41.8%). Emergency response and treatment showed that the response time within 8 minutes was (20.9%). A total of 73.6% of cardiac arrests were witnessed, 21.8% received CPR by a bystander, and 2.7% received automated external defibrillation. About 30.0% of patients had a shockable ECG rhythm, and 25.5% received defibrillation. In addition, 24.5% received amiodarone, and 10.9% received 7.5% NaHCO₃. The common cause of cardiac arrest in the sample was hypoxia (91.8%).
Conclusion : ECG shockable cardiac rhythm, defibrillation, and bystander-witnessed arrest were factors significantly affecting the success of resuscitation of out-of-hospital cardiac arrest patients by the Mahasarakham Hospital Rescue Network.
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