Estudo experimental do efeito do uso de torniquete aórtico-juncional na reanimação cardiopulmonar em suínos após fibrilação ventricular induzida

Abstract

Experimental studies in resuscitation showed physiological gains when using alternative techniques of CPR (cardiopulmonary resuscitation), such as CCR (cardiocerebral resuscitation: only compressions, without ventilations) and CPRT (cardiopulmonary resuscitation using tourniquets). Few survival studies have sought to validate these hypotheses. This study aimed to compare the 30-day survival after cardiopulmonary resuscitation in pigs submitted to ventricular fibrillation in two groups: CCR-T (continuous compressions, without ventilation and use of aortic-junctional tourniquet) or conventional CPR (30 compressions: 2 ventilations). 33 pigs, (23-32kg) submitted to general anesthesia, had cardiac arrests induced by ventricular fibrillation. The animals fibrillated for 5 minutes, without interventions, when they were randomized into two groups: conventional CPR or CCR-T. Basic life supports were performed for 7 minutes, when both groups were defibrillated and treated according AHA (American Heart Association) recommendations. The total time of resuscitation attempts was limited to 30 minutes. The 30-day survival rate was compared. As a result, 05 out 16 animals survived in the conventional CPR Group and none (0) out 17 in the CCR-T group (p 0.018). Therefore, in this study, the CCR-T was less effective than conventional CPR, resulting in a shorter 30-day survival (0% x 31%).