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Updated: Jun 18, 2026

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices
Published on: August 25, 2023
Octopus papillary muscle associated with a left lateral accessory pathway
Manisha S Patel1, Chris Jones, David Huneycutt
1Adult Congenital Heart Disease Center, Emory University, Atlanta, GA 30322, USA. patelm@kidsheart.com
Abstract:
Left ventricular papillary muscle abnormalities are rare malformations. They have been related to significant mitral valve dysfunction and left ventricular midcavitary obstruction. We report our experience with a young adult who presented with palpitations. An echocardiogram on the patient showed an "octopus-like" left ventricular papillary muscle. Subsequent electrophysiologic testing showed evidence of supraventricular tachycardia via a left lateral accessory pathway associated with the abnormal insertion of the papillary muscle attachments.
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