Comparison of two cardiopulmonary resuscitation methods during laparotomy in cardiac arrest of swine
LIU Yahua1,LIANG Liwu1,LI Xiaoping1,LI Xuman1,GUO Xiaodong1,CHEN Chongshu1,WANG Lixiang1
1. General Hospital of Chinese People Armed Police Forces，Beijing 100039，China; 2. Medical Journal of the Chinese People’s Armed Police Forces, Beijing 100039, China
Abstract：Objective To compare the hemodynamic response and ventilation after standard cardiopulmonary resuscitation (S-CPR) and cardiac massage under the diaphragmatic muscle （D-CPR）during laparotomy in cardiac arrest of swine. Methods Fourteen healthy domestic pigs were anesthetized and intubated. After preoperotive preparation and the hemodynamics was stable for 5 minutes, the readings of aortic systolic pressure(AOS), aortic diastolic pressure(AOD), and right atrial pressure（RAP） were recorded consecutively. Pigs were randomized to receive either S-CPR (n=7) or D-CPR (n=7). Cardiac arrest was induced with overdosed bupivacaine. After 2 min of untreated time, they were resuscitated, and hemodynamic variables, PETCO2, VT and ECG were continuously recorded. Coronary perfusion pressure (CPP) was calculated as arterial diastolic pressure minus right atrial diastolic pressure. Results D-CPR during cardiac massage, compared with S-CPR, resulted in a significant increase in VT, DAP and CPP. Conclusions D-CPR can provide higher arterial pressure and ventilation; D-CPR is superior to S-CPR.
2012, Vol. 23 
