Key result
Preoperative distal mitral anterior leaflet angle >25 degrees strongly predicts recurrent MR after annuloplasty.
Why the study?
What echocardiographic parameters predict recurrent functional mitral regurgitation after mitral annuloplasty in patients with idiopathic dilated cardiomyopathy?
Cohort (n=104)
What echocardiographic parameters predict recurrent functional mitral regurgitation after mitral annuloplasty in patients with idiopathic dilated cardiomyopathy?
Effect estimate: AUC 0.98
Preoperative distal anterior leaflet angle (ALAtip) >25 degrees strongly predicts recurrent functional mitral regurgitation after annuloplasty in patients with nonischemic dilated cardiomyopathy.
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ALAtip >25° was associated with recurrent MR after annuloplasty; hypothesis-generating for risk stratification pending prospective validation.
Lee et al. (2009) conducted a cohort in Idiopathic dilated cardiomyopathy with functional mitral regurgitation (n=104). Preoperative distal mitral anterior leaflet angle (ALAtip) >25 degrees vs. ALAtip ≤25 degrees was evaluated on Recurrent mitral regurgitation (≥2+) (AUC 0.98). Preoperative distal mitral anterior leaflet angle (ALAtip) >25 degrees strongly predicted recurrent mitral regurgitation after annuloplasty (AUC 0.98; sensitivity 88%, specificity 94%).
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