Accessory mitral valve tissue

A congenital non-syndromic heart malformation characratized by an accessory mitral valve leaflet or various accessory mitral valve structures. It may be asymptomatic or present at various ages with symptoms of left ventricular outflow tract obstruction, low cardiac output due to subaortic obstruction or congestive heart failure. In some cases, it may be a source of cardioembolism. The malformation may be isolated or associated with other congenital heart malformations.

Left ventricular outflow tract obstruction

Left ventricular outflow tract (LVOT) obstruction can occur at the valvular, subvalvular, or supravalvular level. In general, there is an obstruction to forward flow which increases afterload, and if untreated, can result in hypertrophy, dilatation, and eventual failure of the left ventricle.

Total: 27

(per page)

PMID (PMCID)
31094131	OTHER
	Accessory Mitral Valve Tissue Causing Features Of Left Ventricular Outflow Tract Obstruction-A Case Report And Updated Literature Review.
	Al-Atta A, Khan H, Sosin M. J Ayub Med Coll Abbottabad. 2019;31(2):276-278.
	Accessory Mitral Valve Tissue Causing Features Of Left Ventricular Outflow Tract Obstruction-A Case Report And Updated Literature Review.
31020159	OTHER
	A rare case of accessory mitral valve tissue causing left ventricular outflow tract obstruction associated with parachute mitral valve, ventricular septal defect, bicuspid aortic valve, unruptured aneurysm of aortic sinus: a case report.
	Li Y, Hu Y, Wang J, Liu L. Eur Heart J Case Rep. 2018;2(3):yty082.
	A rare case of accessory mitral valve tissue causing left ventricular outflow tract obstruction associated with parachute mitral valve, ventricular septal defect, bicuspid aortic valve, unruptured aneurysm of aortic sinus: a case report.
31020159	OTHER
	A rare case of accessory mitral valve tissue causing left ventricular outflow tract obstruction associated with parachute mitral valve, ventricular septal defect, bicuspid aortic valve, unruptured aneurysm of aortic sinus: a case report.
	Li Y, Hu Y, Wang J, Liu L. Eur Heart J Case Rep. 2018;2(3):yty082.
	Accessory mitral valve tissue should be considered a rare but important cause of left ventricular outflow tract obstruction.
31020159	OTHER
	A rare case of accessory mitral valve tissue causing left ventricular outflow tract obstruction associated with parachute mitral valve, ventricular septal defect, bicuspid aortic valve, unruptured aneurysm of aortic sinus: a case report.
	Li Y, Hu Y, Wang J, Liu L. Eur Heart J Case Rep. 2018;2(3):yty082.
	Here, we report the rarest presentation of accessory mitral valve tissue (AMVT) causing left ventricular outflow tract obstruction.
31020159	OTHER
	A rare case of accessory mitral valve tissue causing left ventricular outflow tract obstruction associated with parachute mitral valve, ventricular septal defect, bicuspid aortic valve, unruptured aneurysm of aortic sinus: a case report.
	Li Y, Hu Y, Wang J, Liu L. Eur Heart J Case Rep. 2018;2(3):yty082.
	Accessory mitral valve tissue rarely causes left ventricular outflow tract obstruction in adults.
27881808	MALE	Infant
	Jellyfish-Like Accessory Mitral Valve Tissue Causing Near-Collapse in a Young Child.
	Kato H, Escudero C, Sherwin E, Hosking M, Gandhi SK. World J Pediatr Congenit Heart Surg. 2018;9(2):251-253.
	Accessory mitral valve tissue (AMVT) causing left ventricular outflow tract obstruction (LVOTO) is rare.
28449514	OTHER
	Left ventricular outflow tract obstruction due to a left ventricular myxoma that was misidentified as an accessory mitral valve tissue.
	Baek SH, Kim HY, Kim HJ, Shin SW, Kim HJ, Choi YM, Choi EJ, Chang E, Son HS. J Thorac Dis. 2017;9(3):E258-E263.
	Left ventricular outflow tract obstruction due to a left ventricular myxoma that was misidentified as an accessory mitral valve tissue.
23809393	MALE	Adult
	Isolated non-obstructive accessory mitral valve tissue in an adult mimicking ruptured chordae.
	Panduranga P, Al-Mukhaini M. Indian Heart J. 2013;65(3):334-6.
	Accessory mitral valve tissue is commonly associated with other congenital heart diseases and is usually detected in children causing left ventricular outflow tract obstruction.
23809393	MALE	Adult
	Isolated non-obstructive accessory mitral valve tissue in an adult mimicking ruptured chordae.
	Panduranga P, Al-Mukhaini M. Indian Heart J. 2013;65(3):334-6.
	Accessory mitral valve tissue in adults is very rare and can mimick various causes of left ventricular outflow tract obstruction.
23090815	MIXED_SAMPLE	Adult
	Asymptomatic and isolated accessory mitral valve tissue in adult population: three case reports and review of the literature.
	Cil H, Atilgan ZA, Islamoglu Y, Yavuz C, Tekbas EO. Eur Rev Med Pharmacol Sci. 2012;16 Suppl 4:74-7.
	Accessory mitral valve tissue is a rare congenital cardiac anomaly and commonly it may cause left ventricular outflow tract obstruction (LVOTO).
21977306 (3184715)	OTHER
	Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in a post-Senning patient with transposition of the great arteries.
	Panduranga P, Eapen T, Al-Maskari S, Al-Farqani A. Heart Int. 2011;6(1):e6.
	We describe the case of an 18-year old post-Senning asymptomatic patient who was found to have accessory mitral valve tissue on transthoracic echocardiography producing severe left ventricular outflow tract obstruction.
21977306 (3184715)	OTHER
	Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in a post-Senning patient with transposition of the great arteries.
	Panduranga P, Eapen T, Al-Maskari S, Al-Farqani A. Heart Int. 2011;6(1):e6.
	Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in a post-Senning patient with transposition of the great arteries.
19017009	MALE
	Accessory mitral valve tissue: a case report and an updated review of literature.
	Yuan SM, Shinfeld A, Mishaly D, Haizler R, Ghosh P, Raanani E. J Card Surg. 2008;23(6):769-72.
	To relieve the left ventricular outflow tract obstruction, an operation including resection of the accessory mitral valve tissue, implantation of artificial chordae tendineae, and mitral valve annuloplasty was performed successfully.
19017009	MALE
	Accessory mitral valve tissue: a case report and an updated review of literature.
	Yuan SM, Shinfeld A, Mishaly D, Haizler R, Ghosh P, Raanani E. J Card Surg. 2008;23(6):769-72.
	Surgical removal is in so much mandatory as a definite diagnosis of accessory mitral valve tissue with left ventricular outflow tract obstruction is established.
19017009	MALE
	Accessory mitral valve tissue: a case report and an updated review of literature.
	Yuan SM, Shinfeld A, Mishaly D, Haizler R, Ghosh P, Raanani E. J Card Surg. 2008;23(6):769-72.
	Accessory mitral valve tissue is an unusual congenital cardiac anomaly and a rare cause responsible for left ventricular outflow tract obstruction.
16500502	MALE	Middle Aged
	Left ventricular outflow tract obstruction caused by accessory mitral valve tissue.
	Sharma R, Smith J, Elliott PM, McKenna WJ, Pellerin D. J Am Soc Echocardiogr. 2006;19(3):354.e5-354.e8.
	Left ventricular outflow tract obstruction caused by accessory mitral valve tissue.
16500502	MALE	Middle Aged
	Left ventricular outflow tract obstruction caused by accessory mitral valve tissue.
	Sharma R, Smith J, Elliott PM, McKenna WJ, Pellerin D. J Am Soc Echocardiogr. 2006;19(3):354.e5-354.e8.
	This report describes the echocardiographic diagnosis of accessory mitral valve tissue causing left ventricular outflow tract obstruction in a symptomatic man.
14759472	FEMALE	Adult
	Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in an adult.
	Aoka Y, Ishizuka N, Sakomura Y, Nagashima H, Kawana M, Kawai A, Kasanuki H. Ann Thorac Surg. 2004;77(2):713-5.
	Accessory mitral valve tissue causing severe left ventricular outflow tract obstruction in an adult.
12767561	FEMALE	Adult
	Accessory mitral valve tissue manifesting cerebrovascular thromboembolic event in a 34-year-old woman.
	Yetkin E, Turhan H, Atak R, Senen K, Cehreli S. Int J Cardiol. 2003;89(2-3):309-11.
	The majority of cases of accessory mitral valve tissue, causing left ventricular outflow tract obstruction, occur in association with other congenital cardiac anomalies.
12542122	FEMALE	Adult
	Accessory mitral valve tissue as a cause of left ventricular outflow tract obstruction and probable cause of cerebrovascular accident.
	Cemri M, Ozdemir M, Cengel A. Acta Cardiol. 2002;57(6):431-3.
	We report a case with an echocardiographically detected accessory mitral valve tissue which caused left ventricular outflow tract obstruction and was presumably responsible for a cerebrovascular accident.