Balloon dilation for aortic recoarctation: morphology at the site of dilation and long-term efficacy

被引:0
|
作者
Mann, C
Goebel, G
Eicken, A
Genz, T
Sebening, W
Kaemmerer, H
Hammerer, I
Hess, J
机构
[1] Univ Innsbruck, Childrens Hosp, Dept Pediat Cardiol, A-6020 Innsbruck, Austria
[2] Inst Biostat & Documentat, Innsbruck, Austria
[3] German Heart Ctr, Dept Pediat Cardiol & Congenital Heart Dis, D-8000 Munich, Germany
关键词
recoarctation; balloon angioplasty; determinants of results; extravasations; aneurysm;
D O I
暂无
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objectives: We undertook this study to assess the immediate and long-term outcome of balloon angioplasty performed fur recurrent or residual coarctation of the aorta, and to assess the changes in the vessel wall caused by this procedure. Methods: Clinical, echocardiographic, angiographic and hemodynamic data from 71 patients who underwent balloon angioplasty for recoarctation between January 1987 and January 1998 were analysed retrospectively. Results: Angioplasty was performed after a median of 82.6 months (range 1.4 mo - 20.9 y, mean 88.5 mo) following surgery for coarctation. Mean systolic pressure gradients were reduced from 27+/-15 mmHg to 11+/-11mmHg after angioplasty (p< 0.0001). The mean diameter at the site of recoarctation increased from 5.5+/-2.5 to 7.5+/-2.7 mm (p < 0.0001). Outpouchings of contrast agents, indicating the disruption of the inner layers of the vessel wall, were defined as extravasations. They were observed in one-quarter of the angiograms performed immediately after the intervention. Immediate success of angioplasty was achieved in 71%, and persisted in 69% of patients during long-term follow up. The main determinant for immediate success was the age at the time of the procedure (p< 0.05), while the main determinant for long-term success was the increase achieved in diameter. Extravasations did not progress to aneurysms, neither acutely nor during echocardiographic follow-up studies. For further follow-up, more sensitive imaging techniques will be necessary to delineate the morphology of the site of extravasation observed immediately after angioplasty.
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页码:30 / 35
页数:6
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