Submitral aneurysm: A rare cause of complete heart block

Subvalvular left ventricular (LV) aneurysms are rare and are of two types – subaortic and submitral. More commonly, they are submitral in position. Submitral aneurysms (SMAs) are most commonly located below posterior mitral leaflet (PML), whereas subaortic aneurysms are present below intermediate po...

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Main Authors: Jaywant M Nawale, Rajendra V Chavan, Meghav M Shah, Ajay S Chaurasia, Digvijay Nalawade
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2018-01-01
Series:Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging
Subjects:
Online Access:http://www.jiaecho.org/article.asp?issn=2543-1463;year=2018;volume=2;issue=3;spage=179;epage=181;aulast=Nawale
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author Jaywant M Nawale
Rajendra V Chavan
Meghav M Shah
Ajay S Chaurasia
Digvijay Nalawade
author_facet Jaywant M Nawale
Rajendra V Chavan
Meghav M Shah
Ajay S Chaurasia
Digvijay Nalawade
author_sort Jaywant M Nawale
collection DOAJ
description Subvalvular left ventricular (LV) aneurysms are rare and are of two types – subaortic and submitral. More commonly, they are submitral in position. Submitral aneurysms (SMAs) are most commonly located below posterior mitral leaflet (PML), whereas subaortic aneurysms are present below intermediate portion of the left aortic sinus. SMA was first described by Corvisart in 1812, and since then, only about 100–120 cases have been described worldwide. Aneurysmal dilatation in submitral position behind PML that communicates with left ventricle helps in making the diagnosis. Color Doppler echocardiography reveals the severity of mitral regurgitation. Transesophageal echocardiography and contrast-enhanced computed tomography (CT) are helpful in diagnosis in cases of acute rupture of SMA, and contrast-enhanced CT helps in evaluation of coronaries. Surgical resection is the definitive treatment for these aneurysms. Our special case presented with complaints of giddiness and presyncope and was diagnosed as complete heart block on electrocardiogram and was then diagnosed as having a large SMA on two-dimensional echocardiogram with LV dysfunction. Usually, SMAs present with dyspnea, pansystolic murmurs due to mitral regurgitation, fever secondary to infective endocarditis, or as thromboembolism. However, this patient presented symptoms of complete heart block. To conclude, SMA should be considered in differential diagnosis of mitral regurgitation with LV dysfunction and heart failure in young patients. Although complete heart block is uncommon in these patients, it should be kept in mind.
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spelling doaj.art-98b9106cf2ab4415ac73efbe1eca4ac22022-12-21T21:28:37ZengWolters Kluwer Medknow PublicationsJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging2543-14632543-14712018-01-012317918110.4103/jiae.jiae_8_18Submitral aneurysm: A rare cause of complete heart blockJaywant M NawaleRajendra V ChavanMeghav M ShahAjay S ChaurasiaDigvijay NalawadeSubvalvular left ventricular (LV) aneurysms are rare and are of two types – subaortic and submitral. More commonly, they are submitral in position. Submitral aneurysms (SMAs) are most commonly located below posterior mitral leaflet (PML), whereas subaortic aneurysms are present below intermediate portion of the left aortic sinus. SMA was first described by Corvisart in 1812, and since then, only about 100–120 cases have been described worldwide. Aneurysmal dilatation in submitral position behind PML that communicates with left ventricle helps in making the diagnosis. Color Doppler echocardiography reveals the severity of mitral regurgitation. Transesophageal echocardiography and contrast-enhanced computed tomography (CT) are helpful in diagnosis in cases of acute rupture of SMA, and contrast-enhanced CT helps in evaluation of coronaries. Surgical resection is the definitive treatment for these aneurysms. Our special case presented with complaints of giddiness and presyncope and was diagnosed as complete heart block on electrocardiogram and was then diagnosed as having a large SMA on two-dimensional echocardiogram with LV dysfunction. Usually, SMAs present with dyspnea, pansystolic murmurs due to mitral regurgitation, fever secondary to infective endocarditis, or as thromboembolism. However, this patient presented symptoms of complete heart block. To conclude, SMA should be considered in differential diagnosis of mitral regurgitation with LV dysfunction and heart failure in young patients. Although complete heart block is uncommon in these patients, it should be kept in mind.http://www.jiaecho.org/article.asp?issn=2543-1463;year=2018;volume=2;issue=3;spage=179;epage=181;aulast=Nawalecomplete heart blockgiddiness and presyncopeleft ventricular dysfunctionsevere mitral regurgitationsubmitral aneurysm-type ii
spellingShingle Jaywant M Nawale
Rajendra V Chavan
Meghav M Shah
Ajay S Chaurasia
Digvijay Nalawade
Submitral aneurysm: A rare cause of complete heart block
Journal of the Indian Academy of Echocardiography & Cardiovascular Imaging
complete heart block
giddiness and presyncope
left ventricular dysfunction
severe mitral regurgitation
submitral aneurysm-type ii
title Submitral aneurysm: A rare cause of complete heart block
title_full Submitral aneurysm: A rare cause of complete heart block
title_fullStr Submitral aneurysm: A rare cause of complete heart block
title_full_unstemmed Submitral aneurysm: A rare cause of complete heart block
title_short Submitral aneurysm: A rare cause of complete heart block
title_sort submitral aneurysm a rare cause of complete heart block
topic complete heart block
giddiness and presyncope
left ventricular dysfunction
severe mitral regurgitation
submitral aneurysm-type ii
url http://www.jiaecho.org/article.asp?issn=2543-1463;year=2018;volume=2;issue=3;spage=179;epage=181;aulast=Nawale
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AT rajendravchavan submitralaneurysmararecauseofcompleteheartblock
AT meghavmshah submitralaneurysmararecauseofcompleteheartblock
AT ajayschaurasia submitralaneurysmararecauseofcompleteheartblock
AT digvijaynalawade submitralaneurysmararecauseofcompleteheartblock