Details

Autor(en) / Beteiligte

• LINDNER, KARL H
• AHNEFELD, FRIEDRICH W

Titel

Comparison of epinephrine and norepinephrine in the treatment of asphyxial or fibrtllatory cardiac arrest in a porcine model

Ist Teil von

• Critical care medicine, 1989-05, Vol.17 (5), p.437-441

Ort / Verlag

Williams & Wilkins

Erscheinungsjahr

1989

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Many animal experiments have shown that α-receptor stimulation is a prerequisite for the improvement of myocardial perfusion during CPR. As there are no recent reports on the effectiveness of norepinephrine in the treatment of cardiac arrest, we investigated the effectiveness of epinephrine and norepinephrine after asphyxial or ventricular fibrillation cardiac arrest using a porcine model. After 3 min of asphyxial cardiac arrest, seven animals each received either 45 μg/kg epinephrine, 45 μg/kg norepinephrine, or placebo (controls). All drugs were given blind. All seven animals given epinephrine could be resuscitated after 174 ± 53 sec, whereas six of seven given norepinephrine could be resuscitated after 473 ± 116 sec. None of the seven given the placebo could be resuscitated. After 4 min of ventricular fibrillation cardiac arrest, none of the seven animals that received defibrillating countershocks at 4 min without either mechanical measures or drug therapy, and none of the seven that received CPR and countershocks but no drugs, could be resuscitated. In the group that received CPR plus 45 μg/kg epinephrine, defibrillation and restoration of spontaneous circulation were achieved in six of seven animals in 667 ± 216 sec. In the group that received CPR plus 45 μg/kg norepinephrine, defibrillation and restoration of spontaneous circulation were achieved in all seven animals in the significantly shorter time of 86 ± 18 sec. In this porcine model, norepinephrine appeared superior to the same dose of epinephrine in the treatment of ventricular fibrillation, with respect to resuscitation time.