Abstract
SummaryWe report the case of an infant who developed severe cardiac compromise due to hypertrophic obstructive cardiomyopathy that developed while he was being treated with dexamethasone for bronchopulmonary dysplasia. This case is illustrative, as previous reports have described steroid-induced hypertrophic obstructive cardiomyopathy as being transient and benign. In this infant, the hypertrophic obstructive cardiomyopathy, waxed, waned, waxed, and waned again during two courses of dexamethasone, thus strengthening a causal link with steroid therapy. A high index of suspicion of hypertrophic obstructive cardiomyopathy as the etiology of hypoperfusion in steroid-treated infants with bronchopulmonary dysplasia is important. Serial echocardiographic monitoring of these infants is helpful in identifying cardiac compromise.
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