tricuspid regurgitation

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1. a backward flowing; see also backflow and reflux.
aortic regurgitation backflow of blood from the aorta into the left ventricle, owing to insufficiency of the aortic valve; it may be chronic or acute.
mitral regurgitation backflow of blood from the left ventricle into the left atrium, owing to insufficiency of the mitral valve; it may be acute or chronic, and is usually due to mitral valve prolapse, rheumatic heart disease, or a complication of cardiac dilatation.
pulmonic regurgitation backflow of blood from the pulmonary artery into the right ventricle, owing to insufficiency of the pulmonic valve.
tricuspid regurgitation backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning (insufficiency) of the tricuspid valve.
valvular regurgitation backflow of blood through the orifice of one of the heart valves owing to imperfect closing of the valve (valvular insufficiency); see aortic, mitral, pulmonic, and tricuspid regurgitation.

tricuspid regurgitation (TR)

Etymology: Gk, treis, three; L, cuspis, point + re, gurgitare, again to flow back
the backflow of blood from the right ventricle into the right atrium, resulting from imperfect functioning (insufficiency) of the tricuspid valve.

tricuspid regurgitation

Tricuspid insufficiency Cardiology Backflow of blood from the right ventricle to the right atrium during right ventricular contraction, due to damage to the tricuspid valve, right ventricular enlargement, rheumatic fever


having three points or cusps, as a valve of the heart.

tricuspid dysplasia
a congenital defect of the tricuspid heart valve commonest in cats. There is a variety of forms of the defect which causes enlargement of the right atrium and ventricle. See also ebstein's anomaly.
tricuspid insufficiency
a functional incompetence that may be caused by rupture of the chordae tendineae of the tricuspid valve, bacterial endocarditis, heartworms, endocardiosis or congenital anomalies, resulting in regurgitation of blood from the right ventricle into the right atrium during systole.
tricuspid regurgitation
see tricuspid insufficiency (above).
tricuspid valve
the valve located between the right atrium and right ventricle. Called also right atrioventricular valve.
References in periodicals archive ?
Tricuspid regurgitation was labeled if there was reflux of blood from right ventricle to right atrium using color Doppler on echocardiography.
He also presented with prominent v waves which are explained by the severe tricuspid regurgitation found in the echos which most likely is a result of right ventricular dilatation secondary to pulmonary hypertension (patient had a pulmonary systolic pressure of 65 mm Hg) caused by increased blood flow from the atrial septal defect.
79 had a rupture of the tricuspid chordae tendineae during the procedure causing severe tricuspid regurgitation, which was finally repaired through surgery.
7 cm and systolic flow reversal in hepatic veins TS: Tricuspid stenosis, TR: Tricuspid regurgitation Table 4: Age and sex distribution of study population Sex 11-20 (%) 21-30 (%) 31-40 (%) Male 110 (8.
Last month, 4Tech reported that its TriCinch TTVR device was used in the world's first-ever successful transcatheter tricuspid valve repair without use of transesophageal echocardiography or general anesthesia to successfully treat a patient suffering from Tricuspid Regurgitation, which afflicts more than three m patients in the US and Europe, making the potential TR patient population approximately 2/3 the size of the MR (Mitral Regurgitation) patient population.
Mitral valve vegetation and mitral regurgitation was the commonest valvular lesion in our study and minority of the patients had Tricuspid regurgitation as well.
11] Most patients with rheumatic tricuspid valve (TV) disease present with tricuspid regurgitation (TR) or a combination of TR and TS.
The modified Bernoulli equation derived from the tricuspid regurgitation jet velocity and estimated right atrial pressure from inferior vena cava collapsibility was used in determining systolic pulmonary artery pressure (sPAP) (28).
Congenital malformations that can result in cyanosis, increased pulmonary blood flow, and biventricular enlargement on electrocardiogram include transposition of the great arteries with pulmonary hypertension, single ventricle, truncus arteriosus, ventricular septal defect with moderate pulmonic stenosis, and occasionally pulmonary atresia with an intact ventricular septum and a large patent ductus arteriosus or significant tricuspid regurgitation.
Tricuspid regurgitation (TR) is the abnormal, backward leakage of blood across the tricuspid valve from the right ventricle to the right atrium during contraction of the heart, or systole (SIS-tuh-lee).
PAH was suspected in those with peak velocity of tricuspid regurgitation (VTR) of 2.