Left Ventricular Outflow Tract Obstruction After Bioprosthetic Mitral Valve Replacement With Preservation of the Anterior Leaflet

Patel, Hetain; Antoine, Steve; Funk, Michael; Santana, Orlando

doi:10.3909/ricm0556

Cited by 8 publications

(2 citation statements)

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“…53,55 Prosthetic struts can disturb blood flow resulting in an abnormal tissue ridge or fibrous ring. 53,55,56 The continuous turbulence caused by the prosthetic struts protruding in the LVOT may result in the accumulation of fibrous deposits and subsequent DSS. 55 Moreover, contact of prosthetic struts with interventricular septum during systole can trigger subendocardial remodeling thus forming the typical fibromuscular "membrane" of DSS.…”

Section: Defects Secondary To Other Congenital or Acquired Heart Dise...mentioning

confidence: 99%

“…Fixed DSS has also been described late after mitral valve replacement 53,55 . Prosthetic struts can disturb blood flow resulting in an abnormal tissue ridge or fibrous ring 53,55,56 . The continuous turbulence caused by the prosthetic struts protruding in the LVOT may result in the accumulation of fibrous deposits and subsequent DSS 55 .…”

Section: Defects Secondary To Other Congenital or Acquired Heart Dise...mentioning

confidence: 99%

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Congenital, acquired, or both? The only two congenitally based, acquired heart diseases

Papakonstantinou

Kanakis

Bobos

et al. 2021

Journal of Cardiac Surgery

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Discrete subaortic stenosis (DSS) is a type of left ventricular outflow tract obstruction whereas double‐chambered right ventricle is a form of right ventricular outflow tract obstruction. Both of these cardiac malformations share lots of similar characteristics which classify them as acquired developmental heart diseases despite their congenital anatomical substrate. Both of them are frequently associated to ventricular septal defects. The initial stimulus in their pathogenetic process is anatomical abnormalities or variations. Subsequently, a hemodynamic process is triggered finally leading to an abnormal subaortic fibroproliferative process with regard to DSS or to hypertrophy of ectopic muscles as far as double‐chambered right ventricle is concerned. In many cases, these pathologies are developed secondarily to surgical management of other congenital or acquired heart defects. Moreover, high recurrence rates after initial successful surgical therapy, particularly regarding DSS, have been described. Finally, an interesting coexistence of DSS and double‐chambered aortic ventricle has also been reported in some cases.

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Section: Defects Secondary To Other Congenital or Acquired Heart Dise...mentioning

confidence: 99%

Section: Defects Secondary To Other Congenital or Acquired Heart Dise...mentioning

confidence: 99%

Congenital, acquired, or both? The only two congenitally based, acquired heart diseases

Papakonstantinou

Kanakis

Bobos

et al. 2021

Journal of Cardiac Surgery

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Obstruction of mechanical mitral valves by preserved posterior leaflet remnants

et al. 2012

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Acquired discrete subaortic stenosis late after mitral valve replacement

Mohan

Shukla

Mohan

et al. 2016

Indian Heart Journal

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Although acquired left ventricular outflow obstruction has been reported in a variety of conditions, there are scant reports of its occurrence following mitral valve replacement (MVR). This study describes two female patients, who developed severe discrete subaortic stenosis, five years following MVR. In both cases, the mitral valve was replaced by a porcine Carpentier-Edwards 27-mm bioprosthesis with preservation of mitral valve leaflets. The risk of very late left ventricular outflow tract obstruction after bio-prosthetic MVR with preservation of subvalvular apparatus needs to be kept in mind in symptomatic patients.

show abstract

Left Ventricular Outflow Tract Obstruction After Bioprosthetic Mitral Valve Replacement With Preservation of the Anterior Leaflet

Cited by 8 publications

References 0 publications

Congenital, acquired, or both? The only two congenitally based, acquired heart diseases

Congenital, acquired, or both? The only two congenitally based, acquired heart diseases

Obstruction of mechanical mitral valves by preserved posterior leaflet remnants

Acquired discrete subaortic stenosis late after mitral valve replacement

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