Document Detail


Coronary artery fistula: an abnormality affecting all age groups.
MedLine Citation:
PMID:  2319939     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A coronary artery fistula is an abnormal communication between a coronary artery and a cardiac chamber, great vessel, or other vascular structure. It is an infrequent but potentially important abnormality that can affect any age group. Most are congenital in origin, although other etiologies, in particular trauma, have been identified. Many are small and found incidentally during coronary arteriography, while others are identified as the cause of a continuous murmur, myocardial ischemia, congestive heart failure, or, rarely, bacterial endocarditis. The diagnosis should be considered in any patient presenting with a continuous murmur or in the setting of congestive heart failure, myocardial ischemia, or bacterial endocarditis without an obvious etiology. The pathophysiologic mechanisms resulting in symptoms include cardiac volume overload due to the shunting of blood and reduction of the myocardial blood supply due to "coronary steal." The diagnosis of coronary artery fistula may be suggested by the finding of a continuous murmur in a precordial location, which is atypical for patent ductus arteriosus. Two-dimensional echocardiography may demonstrate dilated coronary arteries, and pulse-wave and color-flow Doppler examinations can display turbulent flow in the suspected fistula and its receiving chamber or vessel. Angiography is generally needed to confirm the diagnosis and elucidate anatomic detail. The natural history of coronary artery fistula is variable, with long periods of stability in some patients and gradual progression of symptoms in others. Small fistulas detected incidentally at the time of angiography do not require immediate surgical correction, but careful follow-up is indicated because the potential for enlargement with physiologically important shunting exists and cannot readily be predicted. Spontaneous closure is uncommon. Surgical repair of the fistula is recommended for symptomatic patients and for some without symptoms because a quantitatively small shunt does not predict freedom from future symptoms or complications. Those selected for medical management must be followed closely.
Authors:
P Sapin; E Frantz; A Jain; T C Nichols; G J Dehmer
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Medicine     Volume:  69     ISSN:  0025-7974     ISO Abbreviation:  Medicine (Baltimore)     Publication Date:  1990 Mar 
Date Detail:
Created Date:  1990-05-02     Completed Date:  1990-05-02     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  2985248R     Medline TA:  Medicine (Baltimore)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  101-13     Citation Subset:  AIM; IM    
Affiliation:
C. V. Richardson Cardiac Catheterization Laboratory, University of North Carolina Hospitals, Chapel Hill 27514.
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Coronary Disease* / diagnosis,  pathology,  therapy
Female
Fistula* / diagnosis,  pathology,  therapy
Humans
Infant, Newborn
Male
Middle Aged

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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