Results 211 to 220 of about 39,781 (252)
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LEFT VENTRICULAR OUTFLOW OBSTRUCTION
Pediatric Clinics of North America, 1999Patients with LVOT obstruction require lifelong follow-up because the obstruction may be progressive or recurrent. Several procedures are usually required, either by surgery or by interventional cardiac catheterization, to repair or palliate the obstructive lesion.
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Obstructions to left ventricular outflow
World Journal of Surgery, 1985AbstractModern techniques of cardiopulmonary bypass combined with methods for myocardial protection make the conventional operations of prosthetic patch aortoplasty, aortic valvotomy, and transvalvular resection of subaortic membranes dependable and accurate procedures which can provide the obliteration or successful reduction of systolic gradients ...
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Right ventricular outflow tract obstruction
2013Congenital pulmonary valve abnormalities encompass a spectrum of anomalies that result in right ventricular outflow tract (RVOT) obstruction. Based on the level of obstruction, there are three possible variants: (a) valvular, (b) subvalvular (infundibular stenosis), and (c) supravalvular.
Demosthenes G. Katritsis +2 more
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Recognition of Left Ventricular Outflow Obstruction
Circulation, 1965The purpose of this report is to summarize the syndromes of obstruction to left ventricular outflow. Emphasis is placed upon the correlations between clinical, hemodynamic, and angiographic features that permit an accurate diagnosis. An exact definition of the problem in each patient has become of great importance because of rapid advances in cardiac ...
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Right ventricular outflow tract obstruction
2014Conditions that result in right ventricular outflow tract obstruction, i.e. valvular, supravalvular, and branch pulmonary stenosis, are discussed.
Demosthenes G. Katritsis +2 more
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Left ventricular outflow tract obstruction
2009Left 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 ...
Michael D. Tsifansky +2 more
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Left ventricular outflow obstruction
1986The echocardiographic hallmark of a congenitally stenotic aortic valve is the presence of systolic doming [1]. During ejection, the aortic cusps curve toward the center of the aortic lumen without separating completely. M-mode echocardiography is not reliable in the detection of this restricted valvular opening as echoes from the base of the doming ...
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Right ventricular outflow obstruction
1986Pulmonary valve stenosis can be diagnosed only indirectly by M-mode echocardiography: the diagnosis is based essentially on the effects of abnormal presystolic ventricular pressure on pulmonary valve opening [1].
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Dynamic left ventricular outflow obstruction experimentally induced
American Heart Journal, 1966Abstract In 15 unanesthetized dogs the administration of toxic doses of amphetamine resulted in the prompt appearance of a high degree of subvalvular and left ventricular outflow tract obstruction. Hemodynamic, angiocardiographic, and postmortem findings revealed striking similarities between the experimental model and the clinical disease idiopathic
E G, Zalis +3 more
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Left Ventricular Outflow Tract Obstruction
2015Left 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.
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