title: Acquired discrete subaortic stenosis late after mitral valve replacement.
abstract: 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.
authors.affiliation: Fortis Institute of Cardiac Sciences, Fortis Hospital, Shalimar Bagh, New Delhi 88, India. Electronic address: a51hauzkhas@gmail.com.
authors.forename: Jagdish C
authors.initials: JC
authors.lastname: Mohan
authors.affiliation: Fortis Institute of Cardiac Sciences, Fortis Hospital, Shalimar Bagh, New Delhi 88, India.
authors.forename: Madhu
authors.initials: M
authors.lastname: Shukla
authors.affiliation: Fortis Institute of Cardiac Sciences, Fortis Hospital, Shalimar Bagh, New Delhi 88, India.
authors.forename: Vishwas
authors.initials: V
authors.lastname: Mohan
authors.affiliation: Fortis Institute of Cardiac Sciences, Fortis Hospital, Shalimar Bagh, New Delhi 88, India.
authors.forename: Arvind
authors.initials: A
authors.lastname: Sethi
mesh_terms: D000328:Adult; D021922:Discrete Subaortic Stenosis / Q000000981:diagnostic imaging / Q000209:etiology*; D004452:Echocardiography; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D021621:Imaging, Three-Dimensional; D008943:Mitral Valve / Q000601:surgery; D008946:Mitral Valve Stenosis / Q000601:surgery*; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000209:etiology; D014694:Ventricular Outflow Obstruction / Q000209:etiology
keywords: Acquired discrete subaortic stenosis; Carpentier-Edwards bioprosthesis; Mitral stenosis; Mitral valve replacement