Thrombotic events are being increasingly recognized during the neonatal period. An infant girl was born at 29 weeks' gestation after a pregnancy complicated by twin-to-twin transfusion syndrome. After an initial uncomplicated clinical course, her oxygen requirement increased, which was interpreted as an early sign of bronchopulmonary dysplasia. At 3 weeks of age, she suddenly collapsed and died of severe pulmonary hypertension. At autopsy, multiple pulmonary artery emboli and several older renal vein thromboses were found. Results of genetic analyses of the infant and her family were negative for thrombophilia. Although embolism represents a frequent emergency in adults, fatal pulmonary embolism has never, to our knowledge, been described for premature infants. This case suggests that thrombotic events are underdiagnosed and that additional studies are needed to define infants at risk and optimal treatment strategies.
Fatal Pulmonary Embolism in a Premature Neonate After Twin-to-Twin Transfusion Syndrome
FINANCIAL DISCLOSURE: The authors have indicated they have no financial relationships relevant to this article to disclose.
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Luregn Jan Schlapbach, Thomas Riedel, Vera Genitsch, Mathias Nelle, Felicity Jane McDougall; Fatal Pulmonary Embolism in a Premature Neonate After Twin-to-Twin Transfusion Syndrome. Pediatrics August 2010; 126 (2): e483–e487. 10.1542/peds.2009-3490
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