Correlation of Patients' Baseline Characteristics with Success Rate of Cardiopulmonary Resuscitation; a Cross-Sectional Study.

Introduction: Many advances have been made in method, applied medications and the skill of the treatment staff for performing cardiopulmonary resuscitation (CPR), yet the rate of mortality following cardiac arrest is still high, which is affected by many factors.

Objective: This study was designed and performed aiming to evaluate the effective factors in the success rate of CPR.

Method: This cross-sectional study was performed on patients who had undergone CPR in Dr. Shariati Hospital, Isfahan, Iran, from March 2017 to March 2018. A pre-designed checklist was used for data gathering, which included questions regarding demographic data and medical history of the patients, data related to CPR and the final outcome of resuscitation.

Results: A total of 190 patients with the mean age of 69.4±17.7 years were evaluated in the present study, 115 (60.5%) of which were male. Overall, 28.9% of CPRs were initially successful and 5.3% of the cases were finally discharged from the hospital. There was no significant correlation between CPR success and age, sex, hospitalization ward, time interval between hospitalization and cardiac arrest, the number of CPR attempts, or working shift (p > 0.05). On the other hand, CPR success significantly correlated with underlying illnesses and the first cardiac rhythm recorded before the initiation of resuscitation (p < 0.05).

Conclusion: Based on the findings of the present study, it seems that underlying illness and the initial cardiac rhythm recorded correlate with the probability of CPR success.