Results 281 to 290 of about 57,391 (325)

Reversible obstruction of the ventricular outflow tract

The American Journal of Cardiology, 1963
Abstract Obstruction of the left ventricular outflow tract with characteristics of subaortic muscular hypertrophy has been produced in a human subject and 2 of 8 dogs by infusion of isoproterenol. In 2 other dogs with outflow tract gradients in the “control” state, infusion of blood relieved the obstruction.
William B. Hood, Ellis L. Rolett, Peter M. Yurchak, Richard Gorlin, Norman Krasnow   +4 more
openaire   +3 more sources

Management of outflow tract ventricular arrhythmias

Current Opinion in Cardiology, 2015
Outflow tract ventricular arrhythmias represent an important chapter in clinical electrophysiology. Recent investigations enhance the knowledge in that field and highlight new important concepts in ventricular arrhythmogenesis.Recent publications have revealed new interesting results in the field of outflow tract ventricular arrhythmias.
Philippe Maury, Alexandre Duparc, Anne Rollin, Pierre Mondoly   +3 more
openaire   +3 more sources

Hemodynamics of the ventricular outflow tract

Journal of Biomechanics, 1970
Abstract The purpose of this report is to formulate from the equations of fluid mechanics, assuming inviscid flow of an incompressible fluid, an equation for the fluid dynamics of the ventricular outflow tract. The unsteady flow term of the equation implies the possibility of a negative pressure gradient from the left ventricle to the proximal aortic
openaire   +3 more sources

Stenting of the right ventricular outflow tract

Heart, 2013
To assess the indication, technical aspects, and outcome of stenting of the right ventricular outflow tract (RVOT) in the management of symptomatic patients with severely limited pulmonary blood flow.Retrospective case note and procedure review of patients undergoing stenting of the RVOT over an 8 year period.Between 2005 and 2012, 52 selected patients
Joseph V. De Giovanni, Chetan Mehta, Zdenka Reinhardt, Oliver Stumper, Patrick Noonan, Rami Dhillon, Bharat Ramchandani, Vinay Bhole, Paul Miller   +8 more
openaire   +3 more sources

Outflow tract ventricular arrhythmias: An update

Trends in Cardiovascular Medicine, 2015
During the last 20 years, the molecular etiology for many ventricular tachyarrhythmias once referred to as "idiopathic," has been elucidated. These arrhythmias are due to mutations in ion channels or structural proteins and include ventricular tachyarrhythmias due to long and short QT syndromes, Brugada syndrome, and catecholaminergic polymorphic ...
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Left ventricular outflow tract obstruction

Seminars in Thoracic and Cardiovascular Surgery: Pediatric Cardiac Surgery Annual, 2004
Left ventricular outflow tract obstruction can occur at the supravalvar, valvar, or subvalvar level. Each level of obstruction is associated with distinct symptomatology, natural history, and operative approach. Reconstructive techniques can usually be used with low operative risk and excellent immediate and longer-term outcomes.
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Left Ventricular Outflow Tract

2013
Left ventricular outflow tract obstructions (LVOTO) encompass a series of stenotic lesions starting in the left ventricular outflow tract (LVOT), including the aortic valve and extending to the ascending aorta. Depending on definition, also intraventricular obstruction and hypoplastic left heart syndrome are included in the types of LVOTO.
Kurt Debl, Stefan Buchner
openaire   +2 more sources

Right Ventricular Outflow Tract Pacing

Pacing and Clinical Electrophysiology, 1997
“He who expresses an opinion should not voice it as correct and right but set it forth as a contribution to the consensus of opinion, for the light of reality becomes apparent when two opinions coincide. A spark is produced when flint and steel come together. Man should weigh his opinions with the utmost serenity, calmness, and composure.
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Left Ventricular Outflow Tract Obstruction

2009
Left ventricular outflow tract obstruction (LVOTO) accounts for 5–10% of all congenital heart defects. LVOTO occurs at the valvar (70%), subvalvar (14%), and supravalvar (8%) level, and several levels of obstruction often coexist (8%) [1]. Another type of muscular subaortic stenosis, present with hypertrophic cardiomyopathy, is known as hypertrophic ...
Ricardo A. Munoz, Victor O. Morell, Michael D. Tsifansky   +2 more
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Left Ventricular Outflow Tract Obstruction

NeoReviews, 2006
A term female newborn presents with a prenatal diagnosis of cardiac masses on prenatal echocardiography. ### Prenatal History: ### Birth History and Presentation: The baby was delivered by elective cesarean section after rupture of membranes with clear fluid. Apgar scores were 9 at both 1 and 5 minutes.
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