Return of spontaneous circulation and heart rhythm during the first analysis of the heart electrical activity

Introduction. Return of spontaneous circulation (ROSC) of a patient with cardiac arrest is the main goal of carrying out cardiopulmonary resuscitation.

Aim. Evaluation of frequency of return of spontaneous circulation depending on the heart rhythms in the first moment of heart electrical activity.

Material and methods. Analysis of 105 cases of sudden cardiac arrest in out-of-hospital conditions on the premises of Brzozow Emergency Medical Service from September 2016 to the end of February 2018. The data was collected from intervention medical cards and medical rescue procedure cards. Statistical analysis was carried out using STATISTICA software. Statistical significance was assumed to be p<0.05.

Results. Sudden cardiac arrest in the analysed group applied to 62.9% of men. Return of spontaneous circulation was achieved only in 16 out of 105 cases (15.2%) of sudden cardiac arrest. The analysis has indicated that ROSC was successful among 66.67% of patients, who during the first analysis of the rhythm, represented cardiac arrest in VF/pVT, what constituted 75% of all ROSC cases in the analysed group. Comparison between ROSC and rhythm during the first evaluation of the rhythm showed statistical significance (p=0.00). Statistical significance was also shown in the relationship between ROSC and the average age of the patient (p=0.0155).

Conclusions. Sudden cardiac arrest, when diagnosed in the first analysis of the rhythm VF/pVT, has bigger chances for return of spontaneous circulation than it has in other rhythms.