The effect of insulin on the resuscitation of bupivacaine-induced severe cardiovascular toxicity in dogs.
Resuscitation after bupivacaine-induced cardiovascular collapse is difficult and often resistant to conventional treatment. We tested the hypothesis that insulin treatment would effectively reverse bupivacaine-induced cardiovascular collapse in pentobarbital-anesthetized dogs. Bupivacaine was administered at 0.5 mg. kg(-1). min(-1) until mean arterial blood pressure decreased to 40 mm Hg or less. In the insulin-glucose-potassium (IGK) group (n = 7), an IV bolus of regular insulin (2 U/kg) was given, followed by a glucose infusion (2 mL/kg of 50% dextrose in water) for 30 min and a potassium infusion (1-2 mmol. kg(-1). h(-1)). In the control group (n = 7), glucose infusion was given as in the IGK group. In contrast to the control group, all IGK dogs survived. Mean arterial blood pressure, heart rate, cardiac output, mixed venous oxygen saturation, and end tidal CO(2) recovered toward baseline levels in the IGK group. In conclusion, severe bupivacaine-induced cardiovascular collapse in dogs was effectively reversed with the insulin treatment.
Kim
Jin-Tae
JT
Department of Anesthesiology and Pain Medicine, College of Medicine, Seoul National University, Korea.
Jung
Chul-Woo
CW
Lee
Kook-Hyun
KH
D000779:Anesthetics, Local / Q000633:toxicity*; D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D002045:Bupivacaine / Q000633:toxicity*; D002302:Cardiac Output / Q000187:drug effects; D004285:Dogs; D004562:Electrocardiography; D005947:Glucose / Q000494:pharmacology; D006339:Heart Rate / Q000187:drug effects; D007328:Insulin / Q000494:pharmacology*; D011188:Potassium / Q000494:pharmacology; D012151:Resuscitation
D000779:Anesthetics, Local; D007328:Insulin; D005947:Glucose; D011188:Potassium; D002045:Bupivacaine