Arrhythmias during right heart catheterization.
D001145:Arrhythmias, Cardiac / Q000209:etiology*; D006328:Cardiac Catheterization; D002648:Child; D006801:Humans; D006919:Hydroxyzine / Q000628:therapy*; D007223:Infant; D008910:Minnesota
D006919:Hydroxyzine
ARRHYTHMIA/etiology; HEART CATHETERIZATION/in infancy and childhood; HYDROXYZINE/therapy