Left ventricular false tendons: anatomic, echocardiographic, and pathophysiologic insights.

Area of Science:

• Cardiology
• Cardiac Anatomy
• Echocardiography

Background:

• Left ventricular (LV) false tendons are chordlike structures found in about half of human hearts.
• Their functional significance and impact on cardiac physiology remain largely unexplored despite over a century since initial description.

Purpose of the Study:

• To review the current understanding of the anatomy, echocardiographic characteristics, and pathophysiology of left ventricular false tendons.
• To explore the potential functional roles, both beneficial and detrimental, of these cardiac structures.

Main Methods:

• Literature review of anatomical descriptions.
• Analysis of echocardiographic findings related to LV false tendons.
• Synthesis of existing data on the pathophysiology and clinical implications.

Main Results:

• LV false tendons attach within the ventricle but not to the mitral valve.
• They may influence left ventricular remodeling and functional mitral regurgitation.
• Potential deleterious effects include association with discrete subaortic stenosis.

Conclusions:

• Left ventricular false tendons are prevalent structures with incompletely understood functional roles.
• Further research is needed to elucidate their precise impact on cardiac mechanics and disease processes.
• Understanding these structures may offer insights into conditions like LV remodeling and mitral regurgitation.