OBJECTIVE: To compare the efficacy of nifekalant and amiodarone in the treatment of cardiac arrest in a porcine model. METHODS: After 4min of untreated ventricular fibrillation, animals were randomly treated with nifekalant (2mgkg(-1)), amiodarone (5mgkg(-1)) or saline placebo (n=12 pigs per group). Precordial compression and ventilation were initiated after drug administration and defibrillation was attempted 2min later. Hemodynamics were continuously measured for 6h after successful resuscitation. RESULTS: Compared with saline, nifekalant and amiodarone equally decreased the number of electric shocks, defibrillation energy, epinephrine dose, and duration of cardiopulmonary resuscitation required for successful resuscitation (P<0.01). The incidence of restoration of spontaneous circulation (ROSC) and the 24-h survival rate were higher in both antiarrhythmic drug groups (P<0.05) vs. the saline group. Furthermore, post-resuscitation myocardial dysfunction at 4-6h after successful resuscitation was improved in animals given antiarrhythmic drugs as compared with the saline group (P<0.05). There were no differences between nifekalant and amiodarone for any of these parameters. CONCLUSION: The effect of nifekalant was similar to that of amiodarone for improving defibrillation efficacy and for the treatment of cardiac arrest. Administration of either nifekalant or amiodarone before defibrillation increased the ROSC and 24-h survival rates and improved post-resuscitation cardiac function in this porcine model. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.
OBJECTIVE: To compare the efficacy of nifekalant and amiodarone in the treatment of cardiac arrest in a porcine model. METHODS: After 4min of untreated ventricular fibrillation, animals were randomly treated with nifekalant (2mgkg(-1)), amiodarone (5mgkg(-1)) or saline placebo (n=12 pigs per group). Precordial compression and ventilation were initiated after drug administration and defibrillation was attempted 2min later. Hemodynamics were continuously measured for 6h after successful resuscitation. RESULTS: Compared with saline, nifekalant and amiodarone equally decreased the number of electric shocks, defibrillation energy, epinephrine dose, and duration of cardiopulmonary resuscitation required for successful resuscitation (P<0.01). The incidence of restoration of spontaneous circulation (ROSC) and the 24-h survival rate were higher in both antiarrhythmic drug groups (P<0.05) vs. the saline group. Furthermore, post-resuscitation myocardial dysfunction at 4-6h after successful resuscitation was improved in animals given antiarrhythmic drugs as compared with the saline group (P<0.05). There were no differences between nifekalant and amiodarone for any of these parameters. CONCLUSION: The effect of nifekalant was similar to that of amiodarone for improving defibrillation efficacy and for the treatment of cardiac arrest. Administration of either nifekalant or amiodarone before defibrillation increased the ROSC and 24-h survival rates and improved post-resuscitation cardiac function in this porcine model. Copyright 2010 Elsevier Ireland Ltd. All rights reserved.
Authors: Adrienne Dardenne; Carlos Fernandez; Alyssa Wagner; Krzysztof Milewski; Diane R Ordanes; Patricia A Mount; Yanping Cheng; Geng-Hua Yi; Gerard B Conditt; Armando Tellez; Greg L Kaluza; Juan F Granada; William P Feeney Journal: J Am Assoc Lab Anim Sci Date: 2013 Impact factor: 1.232
Authors: Ping Gong; Ming-Yue Zhang; Hong Zhao; Zi-Ren Tang; Rong Hua; Xue Mei; Juan Cui; Chun-Sheng Li Journal: PLoS One Date: 2013-06-20 Impact factor: 3.240
Authors: Ping Gong; Chun-Sheng Li; Rong Hua; Hong Zhao; Zi-Ren Tang; Xue Mei; Ming-Yue Zhang; Juan Cui Journal: PLoS One Date: 2012-04-20 Impact factor: 3.240