title: Coronary dilators and cardioplegia.
abstract: The distribution in the myocardium of cardioplegic solution is demonstrated in dog hearts with the aid of indocyanine green. When papaverine or nitroglycerin are added to the solution, a much improved diffusion is observed. Papaverine appears to be a better coronary dilator. We deduce from this observation that myocardial protection during ischemic arrest for open-heart surgery is enhanced considerably when coronary dilation is assured.
authors.affiliation: Cardiovascular Anesthesia Division, Texas Heart Institute, Houston, Texas.
authors.forename: Alexander
authors.initials: A
authors.lastname: Romagnoli
authors.forename: Adolph J.
authors.initials: AJ
authors.lastname: Koska