Iodine staining can grossly demonstrate the left ventricular peripheral conduction system in human hearts if performed shortly after death.
Iodine staining may aid prompt post-mortem LV conduction mapping; leaves open broader or clinical applications.
The peripheral conduction system was demonstrated grossly by iodine staining in a normal newborn heart and in one with a muscular ventricular septal defect. Staining of the conduction system was unsuccessful in a third heart when attempted over 2 hours after death. The left ventricular conduction system was easily visualized; however, the arborizations of conduction tissue over the right ventricular free wall endocardium were demonstrated poorly.
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Spach et al. (1963) studied this question.
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