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.

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Narrow down the case reports

Total: 39 (papers)

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Matched Phenotype Gene Mutation MeSH

Rank (Similarity)	PMID (PMCID)
1 (17.5%)	10978978	Critical left ventricular outflow tract obstruction due to accessory mitral valve tissue. Calabro R, Santoro G, Pisacane C, Sarubbi B, Farina G, Pacileo G, Caianiello G. Echocardiography. 2000;17(2):177-80. [ Show abstract ] [ Hide abstract ]
		Syncope Exercise intolerance


		Blood Flow Velocity Congenital Heart Defects Differential Diagnosis Echocardiography, Doppler, Color Homo sapiens Infant, Newborn Male Mitral Valve Mitral Valve Insufficiency Ventricular Outflow Obstruction
2 (4.0%)	31203815	Obstructive accessory mitral valve tissue in an adult patient: a case report. Mardenli M, Samman A, Alkanj H, Babi A. J Med Case Rep. 2019;13(1):184. [ Show abstract ] [ Hide abstract ]
		Aortic valve stenosis


		Congenital Heart Defects Echocardiography, Transesophageal Homo sapiens Male Mitral Valve Ventricular Outflow Obstruction X-Ray Computed Tomography
2 (4.0%)	31094131	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. [ Show abstract ] [ Hide abstract ]
		Ventricular septal defect


		Adult Congenital Heart Defects Dyspnea Echocardiography Females Homo sapiens Mitral Valve Pregnancy Pregnancy Complications, Cardiovascular
2 (4.0%)	31020159	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. [ Show abstract ] [ Hide abstract ]
		Ventricular septal defect



2 (4.0%)	28449514	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. [ Show abstract ] [ Hide abstract ]
		Cardiac myxoma



2 (4.0%)	27881808	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. [ Show abstract ] [ Hide abstract ]
		Left ventricular outflow tract obstruction


		Congenital Heart Defects Homo sapiens Infant Male Mitral Valve Ventricular Outflow Obstruction
2 (4.0%)	24740639	Asymptomatic and isolated accessory mitral valve tissue in an adult. Hisatomi K, Hashizume K, Tanigawa K, Miura T, Matsukuma S, Yokose S, Sumi M, Eishi K. Gen Thorac Cardiovasc Surg. 2016;64(2):105-8. [ Show abstract ] [ Hide abstract ]
		Systolic heart murmur


		Disease Progression Echocardiography Embolization, Therapeutic Heart Valve Prosthesis Heart Ventricle Homo sapiens Male Middle Aged Mitral Valve Mitral Valve Insufficiency Postoperative Period Ventricular Outflow Obstruction X-Ray Computed Tomography
2 (4.0%)	24165118	Accessory mitral valve tissue: an updated review of the literature. Manganaro R, Zito C, Khandheria BK, Cusma-Piccione M, Chiara Todaro M, Oreto G, D'Angelo M, Mohammed M, Carerj S. Eur Heart J Cardiovasc Imaging. 2014;15(5):489-97. [ Show abstract ] [ Hide abstract ]
		Syncope


		Adult Congenital Heart Defects Differential Diagnosis Echocardiography Echocardiography, Three-Dimensional Echocardiography, Transesophageal Electrocardiography Females Homo sapiens Incidental Findings Male Middle Aged Mitral Valve Ventricular Outflow Obstruction
2 (4.0%)	23809393	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. [ Show abstract ] [ Hide abstract ]
		Mitral regurgitation


		Adult Congenital Heart Defects Differential Diagnosis Echocardiography, Transesophageal Heart Ventricle Homo sapiens Male Mitral Valve Rupture, Spontaneous
2 (4.0%)	23217464	Accessory mitral valve tissue: appearance on cardiac computed tomography. Mathias H, Ismail Y, Hamilton MC, Manghat NE. J Cardiovasc Comput Tomogr. 2012;6(6):429-30. [ Show abstract ] [ Hide abstract ]
		Left ventricular outflow tract obstruction


		Females Homo sapiens Middle Aged Mitral Valve X-Ray Computed Tomography

Phenotype(s) retrieved from Orphanet

Total: 0

HPO ID	Term	Frequency

Phenotype(s) retrieved from case reports

Total: 10

HPO ID	Term	# of case reports
HP:0032092	Left ventricular outflow tract obstruction	18
HP:0001629	Ventricular septal defect	3
HP:0011571	Parachute mitral valve	2
HP:0001647	Bicuspid aortic valve	1
HP:0001650	Aortic valve stenosis	1
HP:0001659	Aortic regurgitation	1
HP:0001670	Asymmetric septal hypertrophy	1
HP:0005144	Ventricular septal hypertrophy	1
HP:0011672	Cardiac myxoma	1
HP:0030148	Heart murmur	1

Causative gene(s) retrieved from Orphanet

Total: 0

Gene Symbol	Gene Name	Entrez Gene ID