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Is spontaneous closure of a patent arterial duct common?

Published online by Cambridge University Press:  10 May 2016

Julien I. E. Hoffman*
Affiliation:
Department of Pediatrics, University of California, San Francisco, California, United States of America
*
Correspondence to: J. I. E. Hoffman, MD, Professor of Pediatrics (Emeritus), Department of Pediatrics, University of California, 925 Tiburon Boulevard, Tiburon, San Francisco, CA 94920, United States of America. Tel: 1-415-435-6941; Fax: 1-415-889-8355; E-mail: [email protected]

Abstract

As closing a patent arterial duct is relatively simple, safe, and successful, most children with a patent arterial duct have it closed soon after diagnosis. The larger ducts are closed to prevent congestive heart failure, pulmonary vascular disease, or aneurysmal dilatation of the ductus, and smaller ducts are closed to prevent infective endocarditis. Consequently, there is no opportunity to determine whether spontaneous closure or diminution in size of the patent arterial duct is common.

If the duct does become smaller, flow through it may be so low that no murmur is produced – the silent ductus. The frequency and best management of the silent patent arterial duct are unknown, and we do not know whether these tiny ducts are the last stage before spontaneous closure.

Type
Original Articles
Copyright
© Cambridge University Press 2016 

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