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Clinical and echocardiographic evaluation of mitral valve aneurysms: a retrospective, single center study

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Abstract

Mitral valve aneurysms (MVAs) are rarely encountered in echocardiography laboratories. Although they are commonly associated with endocarditis of the aortic valve, various mechanisms have been suggested for the etiopathogenesis of MVAs associated with non-infectious conditions. 5,887 patients who underwent transesophageal echocardiography (TEE) between 2007 and 2012 were evaluated retrospectively for MVA. Mitral valve aneurysm is defined as a localized saccular bulging of the mitral leaflet towards the left atrium with systolic expansion and diastolic collapse. The color flow Doppler image of a perforation was described as a high-velocity turbulent jet traversing a valve leaflet in systole. We found that 12 of 5,887 patients (0.204 %) had MVA in TEE examinations. The mean age of patients with MVA was 53 years (range 21–80 years), including four females and eight males. Nine patients presented with symptoms of endocarditis. On TEE, aneurysms were located in the anterior mitral leaflet in 11 patients, and in the posterior mitral leaflet in one patient. Eight patients had severe, three had moderate, and one had trace mitral regurgitation. Of the nine patients with perforated leaflets, eight patients had severe and one patient had moderate mitral regurgitation. Aortic regurgitation was present in nine patients, being severe in three, moderate in two, mild in two, and trace in two patients. Two patients without severe mitral regurgitation were followed-up conservatively, while nine patients underwent surgery. Two patients died from septic shock, one in the postoperative period and the other one prior to surgery. Although MVAs occur during the course of aortic valve endocarditis and, in particular, due to aortic regurgitation jet, it should be borne in mind that they may develop as an isolated valvular pathology and may be misdiagnosed as chordal rupture, other cardiac masses, or vegetation. Thus, MVAs may not be so infrequent as they are thought; they may justify to be considered in the differential diagnosis of masses seen on the mitral valve on echocardiographic examination.

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Authors and Affiliations

  1. Department of Cardiology, Kosuyolu Kartal Heart Training and Research Hospital, Istanbul, Turkey

    Ahmet Guler, Can Y. Karabay, Ozan M. Gursoy, Yeliz Guler, Ozkan Candan, Taylan Akgun, Mustafa Bulut, Selcuk Pala, Akin I. Izgi, Ali M. Esen, Cevat Kirma & Mehmet Ozkan

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  1. Ahmet Guler
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  2. Can Y. Karabay
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  3. Ozan M. Gursoy
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Correspondence to Ahmet Guler.

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Guler, A., Karabay, C.Y., Gursoy, O.M. et al. Clinical and echocardiographic evaluation of mitral valve aneurysms: a retrospective, single center study. Int J Cardiovasc Imaging 30, 535–541 (2014). https://doi.org/10.1007/s10554-014-0365-4

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