Hypercyanotic spells (cyanotic crisis) in an infant with valvar pulmonic stenosis.
D006328:Cardiac Catheterization; D003490:Cyanosis / Q000150:complications*; D004562:Electrocardiography; D006330:Heart Defects, Congenital / Q000150:complications*; D006801:Humans; D007223:Infant; D008297:Male; D011666:Pulmonary Valve Stenosis / Q000150:complications* / Q000175:diagnosis