Results 321 to 330 of about 61,734 (360)

Left Ventricular Outflow Tract Obstruction

2015
Left ventricular outflow tract (LVOT) obstruction is a general term that includes all the obstructive lesions affecting the left ventricle and the aortic arch. Subaortic stenosis can be caused by fibrous rings, hypertrophied muscle, or abnormal mitral valve attachments.
openaire   +2 more sources

Left ventricular outflow tract obstruction

2003
Aortic stenosis is rare in infancy. It is present in 0.004–0.34% of live births; 75% of patients are males. It ranks 9th among critical congenital heart diseases in infants (2.9%). Incidence increases with age to become the second most common congenital heart disease after ventricular septal defect in the third decade of life.
openaire   +2 more sources

An Unusual Cause of Left Ventricular Outflow Tract Obstruction

Journal of Cardiothoracic and Vascular Anesthesia, 2011
YPERTROPHIC CARDIOMOPATHY (HCM) is a complex condition with an extensive phenotypic expression and a broad clinical spectrum. Mutations in the sarcomeric proteins lead to abnormal hypertrophy, especially of the interventricular septum. 1 The prevalence of this condition in the adult population is approximately 0.2%, and it is considered the most common
Michelle Capdeville, Abeel A. Mangi, Bruce W. Lytle   +2 more
openaire   +3 more sources

Percutaneous alcohol septal ablation to acutely reduce left ventricular outflow tract obstruction induced by transcatheter mitral valve replacement

Catheterization and cardiovascular interventions, 2016
Transcatheter implantation of balloon expandable valves in native mitral valves (MV) has been performed in patients with severe MV annular calcification who are not good candidates for standard surgical MV replacement.
M. Guerrero, Dee Dee Wang, W. O’Neill
semanticscholar   +1 more source

Factors influencing left ventricular outflow tract obstruction following a mitral valve‐in‐valve or valve‐in‐ring procedure, part 1

Catheterization and cardiovascular interventions, 2015
To determine the factors influencing left ventricular outflow tract (LVOT) area reduction after a mitral valve‐in‐valve (VIV) or a valve‐in‐ring (VIR) procedure.
V. Bapat, F. Pirone, S. Kapetanakis, R. Rajani, S. Niederer   +4 more
semanticscholar   +1 more source

Anteroapical Stunning and Left Ventricular Outflow Tract Obstruction

Mayo Clinic Proceedings, 2001
Dynamic left ventricular outflow tract (LVOT) obstruction is typically observed in the setting of hypertrophic cardiomyopathy. It has also been reported with concentric LV hypertrophy, excessive sympathetic stimulation, and acute myocardial infarction. We describe 3 patients with chest discomfort after emotional stress, who had pronounced abnormalities
James M. Wilson, Susan Wilansky, Arup Achari, Rollo P. Villareal   +3 more
openaire   +3 more sources

Right Ventricular Outflow Tract Obstruction

2014
In this chapter, we will discuss congenital RV infundibulum muscular hypertrophy stenosis, including the muscle bundle of the muscular ventricular septum, combined with the main pulmonary stenosis, ASD or VSD. There is no RV or TV aplasia or dextropositioned aorta such as TOF, pulmonary atresia, or transposition of the great arteries (TGA) (Fig.
openaire   +2 more sources

Echocardiographic assessment of left ventricular outflow tract obstruction

American Heart Journal, 1983
The assessment of a patient with suspected left ventricular outflow tract (LVOT) obstruction is a common clinical problem. Symptoms such as anginal pain, congestive heart failure, vertigo, or syncope may be due to associated diseases (mainly coronary artery disease), but are often the ominous signs of critical obstruction.
Richard S. Meltzer, Adam Schneeweiss, Zvi Vered, Henry N. Neufeld   +3 more
openaire   +3 more sources

The Transmitral Approach to Left Ventricular Outflow Tract Obstruction

The Annals of Thoracic Surgery, 1983
Left ventricular outflow tract obstruction is a particularly vexing problem in patients with complete transposition (atrioventricular concordance and ventriculoarterial discordance) and intact ventricular septum. Previous techniques, such as resecting the obstructive lesion through the pulmonary valve or bypassing the obstruction, have not given ...
Benson R. Wilcox, G. William Henry, Robert H. Anderson   +2 more
openaire   +3 more sources

Transcatheter stenting of the right ventricular outflow tract augments pulmonary arterial growth in symptomatic infants with right ventricular outflow tract obstruction and hypercyanotic spells

Cardiology in the Young, 2016
We retrospectively reviewed all the children with right ventricular outflow tract obstruction, hypoplastic pulmonary annulus, and pulmonary arteries who underwent stenting of the right ventricular outflow tract for hypercyanotic spells at our institution
E. McGovern, C. Morgan, P. Oslizlok, D. Kenny, K. Walsh, C. McMahon   +5 more
semanticscholar   +1 more source