Evaluation of the significance of a transvalvular catheter aortic valve gradient in aortic stenosis: A direct hemodynamic and Doppler echocardiographic study

被引：12

作者：

Adele, C

Vaitkus, PT

Tischler, MD

机构：

[1] Cardiology Unit, Univ. of Vermont College of Medicine, Burlington, VT

[2] Cardiac Ultrasound Laboratory, Fletcher Allen Health Care, Cardiology Unit, Burlington, VT 05401, McClure 1

来源：

AMERICAN JOURNAL OF CARDIOLOGY | 1997年 / 79卷 / 04期

关键词：

D O I：

10.1016/S0002-9149(96)00799-0

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

We studied 18 patients with aortic stenosis undergoing routine cardiac catheterization to determine the effect of a transvalvular catheter on transaortic pressure gradients. By measuring the Doppler gradients before and after the withdrawal of the pigtail catheter, we demonstrated significant increases in the peak instantaneous and mean gradients when the catheter straddled the valve, an effect that was more pronounced with increasing severity of stenosis.

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页码：513 / &

页数：6

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