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Transcatheter occlusion of the patent ductus arteriosus in the presence of mild isthmal hypoplasia

1993; Wiley; Volume: 29; Issue: 4 Linguagem: Inglês

10.1002/ccd.1810290404

1097-0304

David Nykanen, Alison Hayes, Lee Benson, Robert M. Freedom,

Cardiovascular and Diving-Related Complications

Abstract Between January 1990 and February 1992, 5 asymptomatic patients were identified with hypoplasia of the aortic isthmus at the time of cardiac catheterization for closure of a small patent ductus arteriosus. Isthmal diameters measured from lateral aortograms were 62 ± 11% of age‐matched controls. All patients had a small communication occluded with a 12 mm device and remained asymptomatic at 6–30 months follow up. Residual shunting was demonstrated by color Doppler in 2 patients. No child has developed an arm‐leg systolic blood pressure gradient or systemic hypertension. Following device placement, Doppler interrogation across the isthmus in 2 patients demonstrated a velocity shift of 2.1 m/s. Transcatheter occlusion of the patent ductus arteriosus associated with mild isthmal hypoplasia of the aortic arch appears safe and effective and does not result in a clinically significant impairment to isthmal flow in short‐term follow‐up. © 1993 Wiley‐Liss, Inc.