Determination the success rate of CPR on adults in Emergency room and predicting the factors that makes CPR is successful.

Cardiac arrest is a medical emergency that requires immediate cardiopulmonary resuscitation (CPR). Return of spontaneous circulation (ROSC) is a core outcome element of cardiopulmonary resuscitation (CPR) both in out-of-hospital cardiac arrest (OHCA) and in-hospital cardiac arrest and has been considered a standard in the evaluation of successful resuscitation.

ROSC was defined as a clinical assessment that shows signs of life comprising of a palpable pulse for at least 20 minutes or generating a blood pressure, the duration of ROSC is key element not only to the efficacy of the chain of survival but also to assess the success of resuscitation in emergency medical services (EMSs).

Worldwide CPR outcomes vary due to differences in the circumstances of cardiac arrest, availability of equipment, and performance of the CPR team. The influencing factors of CPR outcome at the emergency room (ER) are patient characteristics, early detection, immediate CPR, initial shockable rhythm, duration of CPR of less than 10 minutes and advanced cardiac life support.

In Egypt, There has been scarce studies regarding CPR and studies that measure the success rate of CPR and factors determining its success. This study aims to assess the success rate of CPR in Emergency room and factors predicting successful CPR on adults.

Inclusion Criteria:

• Resuscitated at the ER in Al Hussein University Hospital.
• Patients Have experienced cardiac arrest.

Exclusion Criteria:

• Patient arresting and receiving CPR inside hospital's other departments.
• Signs of sure death.
• Patient with Multiple Organ Failure Syndrome (M.O.F syndrome