Aortic ball valve resistance.
نویسندگان
چکیده
منابع مشابه
Double Valve Replacement (Mitral and Aortic) for Rheumatic Heart Disease: A 20-year experience with 300 patients.
Introduction: Rheumatic heart disease still remains one of the leading causes of congestive heart failure and death owing to valvular pathologies, in developing countries. Valve replacement still remains the treatment of choice in such patients.The aim of this study wasto analyze the postoperative outcome of double valve replacement (Mitral and Aortic ) in patients of rheumatic heart disease. ...
متن کاملAortic Valve Replacement
Marked stenosis or incompetence of the aortic valve invariably causes progressive disability and early death. They are best treated by surgery, and since July 1964 the treatment of choice in Bristol has been replacement with the Starr-Edwards ball valve prosthesis. Originally constructed of a silicone rubber ball contained in a Vitallium-like alloy cage, the ball has shown signs of wearing out ...
متن کاملRed blood cell survival in patients with aortic valvular disease and ball-valve prostheses.
W E HAVE OBSERVED three patients' who had developed severe hemolytic anemia following aortic valve replacement with a Starr-Edwards ball valve.2 3 The anemia has persisted from 3 to 6 months following operation. Hemolytic anemia following repair of ostium primum defect with a Teflon patch with a regurgitant jet through the mitral cleft has been described.4-7 Hemolytic anemia following insertion...
متن کاملPhonocardiographic diagnosis of aortic ball variance.
Fatty infiltration causing changes in the silastic poppet of the Model 1000 series Starr-Edwards aortic valve prostheses (ball variance) has been detected with increasing frequency and can result in sudden death. Phonocardiograms were recorded on 12 patients with ball variance confirmed by operation and of 31 controls. Ten of the 12 patients with ball variance were distinguished from the contro...
متن کاملNumerical Simulation of the Effect of Valve Opening and Particle Concentration on the Erosion Damage in Ball Valves of Pressure Reducing Station
Ball valve is one of valves that have many applications in industry especially in gas delivery systems. This kind of valve is categorized in the on- off flow control valve. This study aims to investigate unusual application of ball valve to control fluid flow in the oil and gas industry and its destructive effect including erosion of ball and body of valve. Simulation of industrial ball valve i...
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عنوان ژورنال:
- Thorax
دوره 21 2 شماره
صفحات -
تاریخ انتشار 1966