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Valvuloplasty with Large Trefoil Balloons for the Treatment of Congenital Pulmonary Stenosis
Author(s) -
THANOPOULOS B. D.,
MARGETAKIS A.,
PAPADOPOULOS G.,
KEFALAKIS E.,
ROKAS S.
Publication year - 1989
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1989.tb11136.x
Subject(s) - medicine , balloon , trefoil , stenosis , percutaneous , surgery , pulmonary valve stenosis , cardiology , balloon dilation , archaeology , history
. Percutaneous balloon valvuloplasty was performed in 16 children, 1 1/2 to 14 years old, with congenital pulmonary stenosis with the use or trefoil balloons. These balloons, which consist of 3 identical angioplasty balloons, do not interrupt completely the blood flow during inflation. The size of the trefoil balloons used was 30 to 50 % larger than the valve anulus. A dual balloon technique employing a large trefoil and a smaller single balloon was used to obtain an effective pulmonary valvuloplasty in two patients with large valve anulus. The mean prevalvuloplasty systolic gradient of 78.2 28.9 mmHg (range 40 to 140 mmHg) was reduced to 20.3±5.7 (range 10 to 30 mmHg) after valvuloplasty. No patient developed significant hypotension or bradycardia or other complications as a result of the procedure. The findings demonstrate that percutaneous balloon valvuloplasty with oversized trefoil balloons effectively treated congenital pulmonary stenosis without complications in the cases studied. The use of large trefoil instead of single balloons of a similar diameter is advantageous since they cause no significant compromise of the cardiac output during valvuloplasty.