Related Experiment Video
Updated: Aug 7, 2026

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices
Published on: August 25, 2023
Unusual anomalous single papillary muscle causing symptomatic mid-left ventricular cavity obstruction: octopus
Ajay S Shah1, Atul Kukar, Farooq A Chaudhry
1St Luke's Roosevelt Hospital Center, New York, New York 10019, USA. ajay.sha@gmail.com
Abstract:
This report describes a patient with an unusual large anomalous papillary muscle within the left ventricular cavity causing symptomatic midventricular outflow obstruction. The obstructing papillary muscle comprised a large central core that extended multiple circumferential muscular arms to all the walls of the left ventricle, including the septum. The papillary muscle and the arms divided the left ventricle into apical and subaortic chambers. Flow communicated between the two chambers through multiple openings between the arms with a systolic peak Doppler gradient of 50 mm Hg.
More Related Videos
08:42Cox-Maze IV Procedure Concomitant with Valvular Surgery In Situs Inversus Dextrocardia: A Single-Center Experience in China
Published on: February 11, 2022
06:22Contractility Measurements on Isolated Papillary Muscles for the Investigation of Cardiac Inotropy in Mice
Published on: September 17, 2015
Related Concept Videos
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Mitral Valve Prolapse I: Introduction
Mitral Stenosis I: Introduction
Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral Valve Prolapse II: Assessment and Management
Appendicitis