TYK192

The following are dependent upon an infusion of intravenous prostaglandin E- 1 to maintain a patent ductus arteriosus and provide systemic or pulmonary flow until surgical repair can be performed EXCEPT:

a) Triscuspid atresia.

b) Pulmonary atresia with intact interventricular septum

c) Hypoplastic left heart syndrome

d) Partial anomalous pulmonary venous drainage

e) Tetralogy of Fallot, with cyanosis

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Answer

Answer d.

A patent ductus arteriosus, maintained by the infusion of prostaglandin E-1, will allow for left-to-right or right-to-left flow dependent on the lesion. This must continue until surgical repair can be undertaken. Lesions that are duct-dependent are tricuspid atresia, pulmonary atresia, HLHS, and Tetralogy of Fallot. PAPVD does not necessitate this arrangement.

Notes

This question originally printed in the Pediatric Anesthesiology Review Topics kindle book series, and appears courtesy of Naerthwyn Press, LLC.

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