Document Detail

Management of congenital stenosis of a branch pulmonary artery with balloon dilation angioplasty. Report of 52 procedures.
MedLine Citation:
PMID:  3159939     Owner:  NLM     Status:  MEDLINE    
Twenty-four children, aged 4 months to 16 years (nine patients 2 years old or younger), underwent balloon dilation angioplasty of hypoplastic or stenotic branch pulmonary arteries between July, 1981, and April, 1984. Most children had tetralogy of Fallot, with or without pulmonary atresia, or isolated peripheral pulmonary artery stenosis. Fifty-two dilations were attempted, 44 in the catheterization laboratory and eight in the operating room. Of these, 26 (50%) were judged successful; the average vessel diameter on angiogram increased from 4.1 +/- 0.3 to 7.2 +/- 0.3 mm (76%), the gradient across the narrowed segment fell from 60 +/- 10 to 36 +/- 5 mm (40%), pressure in the main pulmonary artery or right ventricle proximal to the obstruction decreased from 83 +/- 10 to 66 +/- 6 mm Hg (20%), and the radionuclide-determined fraction of cardiac output directed to the lung ipsilateral to the dilated pulmonary artery increased from 40 +/- 4 to 51 +/- 4 (28%). All changes were significant at the p less than 0.005 level. Reasons for failure included inadequate technique (balloon too small, inability to position balloon or wire) in 14 and the refractory nature of the lesion itself in 11. Technical failures were age independent. Nondilatable lesions were more common in children more than 2 years old (10/25 versus 1/10) or with isolated peripheral pulmonary artery stenosis (5/7). Five of seven stenoses near previous shunts were nondilatable. One child exsanguinated when the pulmonary artery ruptured during dilation, but other complications were few. Eight dilations, followed up for an average of 6 months after dilation, showed angiographic persistence of improvement; two of four lesions were successfully redilated to a larger size. Balloon dilation angioplasty appears beneficial, both short and long term, for some patients with hypoplastic or stenotic branch pulmonary arteries, especially if performed early in life.
J C Ring; J L Bass; W Marvin; B P Fuhrman; T J Kulik; J E Foker; J E Lock
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of thoracic and cardiovascular surgery     Volume:  90     ISSN:  0022-5223     ISO Abbreviation:  J. Thorac. Cardiovasc. Surg.     Publication Date:  1985 Jul 
Date Detail:
Created Date:  1985-08-09     Completed Date:  1985-08-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376343     Medline TA:  J Thorac Cardiovasc Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  35-44     Citation Subset:  AIM; IM    
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MeSH Terms
Angioplasty, Balloon / methods*
Child, Preschool
Constriction, Pathologic / congenital,  therapy
Heart Septal Defects, Ventricular / therapy
Pulmonary Artery / abnormalities*,  pathology,  radiography
Pulmonary Valve / abnormalities
Tetralogy of Fallot / therapy
Transposition of Great Vessels / therapy

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

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