ventricular outflow tract


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ventricular outflow tract

In the heart, the pathway through which blood is normally ejected from the ventricle. For the left ventricle, it includes the walls of the ventricle, the anterior leaflet of the mitral valve, the aortic valve, the ascending aorta, and the arch of the aorta. For the right ventricle, it includes the walls of the ventricle, the pulmonic valve, the pulmonary trunk, and the pulmonary arteries.
See also: tract
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Aneurysm of the right ventricular outflow tract: a complication of aorta-main pulmonary (central) shunt.
However, patients' right ventricular outflow tract obstruction can manifest with decreased pulmonary vascularity (29).
Apical five-chamber image, obtained from the left parasternal window, with the color Doppler superimposed showing a turbulent flow at the left ventricular outflow tract; F.
Mond, "Right ventricular outflow tract pacing: radiographic and electrocardiographic correlates of lead position," Pacing and Clinical Electrophysiology, vol.
Left ventricular outflow tract endocarditis is a rare occurrence that occurs secondary to damage of the epicardium due to turbulent blood flow.
This study was aimed at assessing the difference between right ventricle apex versus right ventricular outflow tract lead position in functional capacity in patients with preserved left ventricular ejection fraction after 12 months of pacemaker stimulation.
A 3.5-mm open-tip irrigated catheter (NaviStar Thermocool[TM]; Biosense-Webster Inc., USA) was placed at the right ventricular outflow tract, adopting activation mapping and pace mapping to determine the ablation target.
A separate pulmonary artery originating from the right ventricular outflow tract could not be identified despite careful dissection.
The section is taken from the right ventricular outflow tract. Fibrosis is subtle on hematoxylin-eosin (A) but easily appreciated by trichrome staining (B) (original magnification X20).
High posterior odds ratios were observed for five birth defects with paroxetine use: anencephaly (3.2); atrial septal defects (1.8); right ventricular outflow tract obstruction defects (2.4); gastroschisis (2.5); and omphalocele (3.5).
Additionally, a mildly obstructive left ventricular outflow tract (LVOT) is shown (2) with good appreciation of the misalignment of the aorta with respect to the LVOT.
Other highlights of the new guidelines include a stepwise approach to management of left ventricular outflow tract obstruction and heart failure, advice on reproduction, suggestions regarding simple laboratory tests with diagnostic utility, and guidance on the effective utilization of ECG, echocardiography, and cardiac magnetic resonance imaging.

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