Aortic Valve Stenosis
نویسنده
چکیده
Background Pressure recovery is the variable increase in lateral pressure downstream from a stenotic orifice. The magnitude and clinical significance of pressure recovery in aortic valve stenosis are poorly defined. Methods and Results We obtained high-fidelity pressure and velocity recordings in 11 patients with isolated significant aortic valve stenosis at the time of diagnostic cardiac catheterization. Systematic catheter pullback from the left ventricular cavity revealed a consistent although variable subvalvular gradient. Further pullback across and distal to the region of the stenosed aortic valve revealed a consistent and progressive increase in the ascending aortic pressure. This increase in
منابع مشابه
Bicuspid Aortic Valve: An Unusual Cause of Aneurysm of Left Coronary Sinus of Valsalva
Bicuspid aortic valve is traditionally considered an innocuous congenital anomaly. Due to a better and widespread availability of non-invasive imaging techniques, it has come to the fore that 30% of these cases develop complications, viz., valve abnormality (aortic regurgitation and stenosis), and aneurysm of aortic root and ascending aorta. Sinus of Valsalva aneurysm is an uncommon complicatio...
متن کاملمقایسه نتایج درمانی بالون والوپلاستی و والوتومی جراحی در بیماران مبتلا به تنگی مادرزادی دریچه آئورت در پیگیری 6 ساله در بخش کودکان بیمارستان قلب شهید رجایی تهران
Background: Balloon valvuloplasty is a relatively new technique for relief of obstruction of aortic valve. The primary results of this procedure are similar to surgical valvotomy with fewer complications and mortality. Materials and methods: One hundred fifty-five patients with congenital aortic stenosis were enrolled in this study over a period of 6 years (1991-1997). Participants were all un...
متن کاملبررسی نتایج پیگیری یک ساله بالون والولوپلاستی تنگی مادرزادی دریچه آئورت در کودکان به مدت 10 سال در بیمارستان قلب شهید رجایی
Abstract Background: Balloon valvuloplasty uses for treatment of aortic stenosis from 20 years ago. Regarding loss of information about results of balloon valvuloplasty of hereditary aortic stenosis, this study was done to determine prognosis and complication of balloon valvuloplasty during last 10 years. Methods: This study was done on existing data of all children with hereditary aortic...
متن کاملTrans-catheter Bioprosthetic Heart Valve Implantation in Iran (Tehran Heart Centre Experience)
Introduction: With the development of interventional cardiology in the world, in addition to coronary and aortic diseases, the treatment of heart valve diseases through catheters has recently begun. The treatment of aortic stenosis (which was only possible with open surgery and valve replacement) was first performed in the world in 2002 by Alain Cribier in France with catheter insertion of the ...
متن کاملTranscatheter Aortic Valve Replacement: A Review Article
Transcatheter aortic valve replacement (TAVR) is a novel therapeutic intervention for the replacement of severely stenotic aortic valves in high-risk patients for standard surgical procedures. Since the initial PARTNER trial results, use of TAVR has been on the rise each year. New delivery methods and different valves have been developed and modified in order to promote the minimally invasive p...
متن کاملعوامل خطر تنگی هموگرافت پولمونر پس ازعمل جراحی Ross
Background: The Ross procedure has been known as a good method for aortic valve replacement. Pulmonary allograft postoperative stenosis subsequent to the Ross procedure has been noted as an important disadvantage of this technique, although risk factors related to this complication are not clearly recognized. In this study we evaluate the risk factors of pulmonary allograft stenosis after Ross ...
متن کامل