Failure to wean from cardiopulmonary bypass after myocardial revascularization: successful treatment with verapamil via the aortic root.
Severe ventricular dysfunction in a patient prevented weaning from cardiopulmonary bypass after myocardial revascularization. Calcium chloride and increasing doses of dopamine had no effect. Coronary vasospasm was diagnosed based on ST elevation and myocardial failure. Verapamil 0.5 mg, injected into the aortic root, was followed by a dramatic improvement in cardiac contractility and successful weaning from cardiopulmonary bypass without inotropic support.
Ho
A M
AM
Department of Anaesthesia, McMaster University School of Medicine, Hamilton, Ontario, Canada.
Parisi
A
A
Shragge
B W
BW
D002315:Cardiopulmonary Bypass; D003329:Coronary Vasospasm / Q000188:drug therapy*; D006801:Humans; D007269:Injections, Intra-Arterial; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000187:drug effects; D009204:Myocardial Revascularization; D011183:Postoperative Complications / Q000188:drug therapy*; D014700:Verapamil / Q000008:administration & dosage / Q000627:therapeutic use*
D014700:Verapamil