Related Experiment Video
Updated: Oct 26, 2025

An Image Guided Transapical Mitral Valve Leaflet Puncture Model of Controlled Volume Overload from Mitral Regurgitation in the Rat
Published on: May 19, 2020
Parachute Mitral Valve: A Case of Isolated Accessory Mitral Valve Tissue
Deborah Tosin Akanya1, Freddy Duarte Lau2, Faheem Ul Haq1
1Department of Cardiology, Yale New Haven Health Bridgeport Hospital, Bridgeport, Connecticut.
Abstract:
A 69-year-old male presented to the emergency room with dyspnea on exertion lasting more than 2 weeks. Echocardiography showed an ill-defined subaortic structure. Subsequent transesophageal echocardiography revealed a parachute-like structure prolapsing into the left ventricular outflow tract causing subvalvular aortic obstruction. Surgical excision confirmed this structure as an accessory anterior mitral leaflet. (Level of Difficulty: Intermediate.).
Related Concept Videos
Mitral Valve Prolapse I: Introduction
Mitral Regurgitation I: Introduction
Mitral Stenosis I: Introduction
Mitral Stenosis III: Medical Management
Mitral Regurgitation II: Clinical Features and Diagnostic Tests
Mitral Stenosis II: Clinical features and Diagnostic Tests

