# Left Atrial Mitral Valve Chordae Which Disturbed the Mitral Leaflet Motion and Induced Mitral Regurgitation

## TL;DR

A rare heart condition called left atrial mitral valve chorda can cause mitral regurgitation by restricting leaflet motion.

## Contribution

This case report describes a novel presentation of LAMVC originating from a papillary muscle and causing mitral regurgitation.

## Key findings

- LAMVC can originate from a papillary muscle and attach to the posterior mitral annulus.
- The abnormal chorda restricts mitral leaflet motion, leading to mitral regurgitation.

## Abstract

Left atrial mitral valve chorda (LAMVC) is a rare congenital cardiac anomaly. The abnormal tissue band, like a mitral valve chorda, is attached to the left atrial wall on one side and mostly to the mitral valve leaflet on the other side and the band sometimes disturbs the mitral leaflet motion, followed by mitral regurgitation (MR). We encountered a case with a LAMVC which originated from a papillary muscle and attached to the posterior mitral annulus over the posterior leaflet and caused MR due to restricted mitral leaflet motion.