Force that is applied at one point is transmitted to another point using an incompressible fluid. A gear inside the pump spins at 10,000 revolutions per minute (rpm) to create pressure. Porting valve - This valve opens and closes to let the hydraulic fluid flow from one side of the ...
Valve-in-Valve for Small Aortic Annulus in High BMI Patients: What is the Matter of Valve Sizing?doi:10.1016/j.athoracsur.2020.03.057Mehmet AlagozDavut CekmeceliogluThe Annals of Thoracic Surgery
Furthermore, the results, though intriguing, underscore our lack of understanding of the cellular mechanisms of calcification in diverse pathological substrates, such as the degenerating aortic leaflet and mitral annulus. 展开 关键词: calcium valves ...
Background For some scoliotic patients the spinal instrumentation is inevitable. Among these patients, those with stiff curvature will need thoracoscopic d... Chevrefils,Claudia,Cheriet,... - 《Bmc Medical Imaging》 被引量: 11发表: 2012年 Manual versus automatic detection of aortic annulus plane...
Using a transvenous and trans-septal approach, the Cardioband® device is deployed via multiple screw fixation on the posterior mitral annulus from the anterolateral to the posteromedial commissures, with intraprocedural adjustment to reduce the septolateral diameter of the mitral annulus and restore ...
Several permutations to the implantation technique have been described to guide localization to the area of the His. The use of contrast injection to visualize the tricuspid valve annulus has been shown to reduce fluoroscopy times [114]. Fluoro-less or nearly fluoro-less procedures, by using ...
The upper septum bulges into the right ventricle (upper right); (b) The helical architecture demonstrates absence of helical overlap in region beneath the aortic valve. Its endocardium is formed by the outer, ascending left handed helical arm that does not contract during this interval. ...
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(PDA), bicuspid aortic valve, double outlet right ventricle (DORV), transposition of the great arteries (TGA), and other cardiac malformations.[2],[3] CoA combined with aortic arch hypoplasia (AAH) is a serious cardiac abnormality that should be treated at an early stage to improve the ...
On transthoracic echocardiography, the diameter of the aortic annulus ranged from 19 mm to 36mm (mean 28.5卤3.0 mm) and the peak systolic gradients ranged from 54 mm to 174 mm of Hg (mean of 109.8卤28.8 mmHg). Aortic regurgitation was absent or mild in 76 patients (80.8%) and moderate...