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CC BY 4.0 · Thorac Cardiovasc Surg Rep 2026; 15(01): e1-e4
DOI: 10.1055/a-2785-8203
Case Report: Cardiac

Adult Presentation of Congenital Mitral Stenosis: The Challenges of a True Parachute Mitral Valve

Authors

  • Maria Jose Lizano 

    1   Department of Cardiothoracic Surgery, Costa Rican Social Security, Hospital México, San José, Costa Rica

  • Álvaro Herrera

    1   Department of Cardiothoracic Surgery, Costa Rican Social Security, Hospital México, San José, Costa Rica

  • Eduardo Induni

    1   Department of Cardiothoracic Surgery, Costa Rican Social Security, Hospital México, San José, Costa Rica

  • Félix Eduardo Solís

    2   Department of Cardiology, Costa Rican Social Security, Hospital México, San José, Costa Rica

  • Tulio Caldonazo

    3   Department of Cardiothoracic Surgery, Friedrich-Schiller-University Jena, University Hospital, Jena, Germany
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Abstract

Background

Parachute mitral valve (PMV) is a rare congenital anomaly where all chordae tendineae insert into a single papillary muscle, causing stenosis or regurgitation. Adult presentations are uncommon and often underdiagnosed.

Case Description

A 35-year-old male presented with exertional dyspnea. Echocardiography demonstrated severe mitral stenosis, reduced ejection fraction, a bicuspid aortic valve, and pulmonary hypertension. Intraoperative findings confirmed true PMV. Due to anatomical complexity, a 27-mm mechanical prosthesis replacement was performed successfully, with rapid postoperative recovery.

Conclusion

Adult PMV requires high clinical suspicion and often surgical confirmation. Valve replacement is effective in complex cases, emphasizing the importance of early diagnosis and intervention.

Keywords

congenital mitral stenosis - parachute mitral valve - mitral valve replacement

Informed Consent

The authors confirm that written consent for the submission and publication of this case report, including images and text, was obtained from the patient.




Publication History

Received: 19 October 2025

Accepted: 09 January 2026

Accepted Manuscript online:
12 January 2026

Article published online:
22 January 2026

© 2026. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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