Background Out-of-hospital cardiac arrest (OHCA) is a common reason for calls for
intervention by emergency medical teams (EMTs) in Poland. Regardless of the mechanism,
OHCA is a state in which the chance of survival is dependent on rapid action from
bystanders and responding health professionals in emergency medical services (EMS). We
aimed to identify factors associated with return of spontaneous circulation (ROSC). Methods
The medical records of 2137 EMS responses to OHCA in the city of Wroclaw, Poland …

Study objective: In the present study, factors contributing to ROSC were clarified and
measures to improve ROSC rates based on the Utstein style items was examined. Methods:
Information from the Fire and Disaster Management Agency of japan database was
analyzed. The contribution of the Utstein style items to ROSC in OHCA cases transported to
medical institutions by EMT between January 01, 2010, and December 31, 2010, was
assessed. Results: ventricular fibrillation (VF) and ventricular tachycardia (VT), 7.87 (7.09 …