Document Detail

Transcatheter occlusion of Blalock-Taussig shunts: technical options.
MedLine Citation:
PMID:  8219563     Owner:  NLM     Status:  MEDLINE    
PURPOSE: This review of findings in children undergoing transcatheter shunt occlusion was carried out to describe and compare the results of four different embolization techniques. PATIENTS AND METHODS: A retrospective review of clinical, radiologic, and cardiac catheterization records was carried out for 18 consecutive pediatric patients referred for Blalock-Taussig shunt occlusion at one institution. Technical aspects included the use of three devices--steel wire/fiber coils, detachable latex balloons, and ductal occlusion devices--and four techniques--direct transarterial placement, transarterial placement with proximal or with distal flow control, and transvenous delivery. RESULTS: Occlusion of the shunt was attempted in 17 patients (mean age, 6.2 years). Shunt occlusion was successful in 14 patients. Embolization of a device into the pulmonary circulation occurred in five patients, and was most frequent with transarterial delivery without flow control or with proximal flow control (in four of six). Transarterial occlusion with distal flow control and transvenous delivery of ductal occluder devices were the most reliable methods of occluding shunts without distal stenosis, with success in eight of nine cases with the former technique and all of three with the latter technique. CONCLUSIONS: Transarterial embolization of Blalock-Taussig shunts carries a risk of device embolization to the pulmonary circulation; this is best avoided by the use of distal flow control or transvenous placement of a ductal occlusion device.
P E Burrows; T C Edwards; L N Benson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of vascular and interventional radiology : JVIR     Volume:  4     ISSN:  1051-0443     ISO Abbreviation:  J Vasc Interv Radiol     Publication Date:    1993 Sep-Oct
Date Detail:
Created Date:  1993-12-08     Completed Date:  1993-12-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  9203369     Medline TA:  J Vasc Interv Radiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  673-80     Citation Subset:  IM    
Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Ont, Canada.
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MeSH Terms
Catheterization / methods
Child, Preschool
Constriction, Pathologic
Embolization, Therapeutic* / adverse effects,  methods
Heart Defects, Congenital / radiography,  surgery*
Pulmonary Artery / radiography,  surgery*
Radiography, Interventional
Subclavian Artery / radiography,  surgery*
Vascular Patency

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

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