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Pulmonary embolectomy in the neonate.

Pulmonary embolectomy under cardiopulmonary bypass was performed on a six-day-old infant. The clinical presentation suggested cyanotic congenital heart disease secondary to pulmonary stenosis or atresia with intact ventricular septum. At operation, a large blood clot was found completely occluding a normal pulmonary valve. The use of prostaglandin E1 facilitated cardiac catheterization and emergency surgery.