Anomalous left atrial chorda and its association with mitral regurgitation

Abstract

Anomalous left atrial chorda is associated with mitral regurgitation. A young woman presenting for mitral valve repair with the diagnosis of mid-segment (A2) of anterior mitral leaflet prolapse causing severe mitral regurgitation. Transesophageal echocardiography examination in pre-bypass period showed an anomalous chorda attaching A2 to the left atrial roof, tethering the anterior mitral leaflet toward the atrial wall. Surgical findings confirmed the abnormally attached chordae and an absence of normal chorda of A2 segment. The anomalous chorda was resected and neo-chordae placed between the A2 segment and papillary muscles and annulus strengthened with an annuloplasty ring.

Nonobstructive Vertical Folding Supramitral Membrane

“…Atrial chordae tendineae can be considered a differential diagnosis; nonetheless, atrial chordae tendineae is thin and seen in only some planes of echocardiography not easily obtainable. [ 6 ]…”