Perfusion-fixation of the heart and its conduction system for ultrastructural studies.

Abstract

Nine hearts from children who died from noncardiac causes were perfused within 3 h of death with 2.5% glutaraldehyde, 0.1 M sodium cacodylate, pH 7.2, at 4 degrees C. Each heart was perfused continuously for 4 h using a perfusion pressure of 110 mm Hg. The ultrastructural characteristics of the perfused atrial and ventricular myocardium and conduction… (More)

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