Left Atrial Diameter is an Independent Predictor of Postoperative Atrial Fibrillation after Minimally Invasive Mitral Valve Surgery

Cheng, Andrew; Bookun, Hansraj Riteesh; Rasmussen, Michael K.; Lee, David; Lee, Chin Siew; Zhang, Xiao Bo; Gangahanumaiah, Shivanand; Moscarelli, Marco; Bianchi, Giacomo; Farneti, Pier Andrea; Solinas, Marco

doi:10.1186/1749-8090-10-s1-a25

Cited by 2 publications

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“…In the current study, patients of POAF group had larger left atrial antero-posterior, transverse and longitudinal diameters ( P value <0.001), a finding consistent with Kernis et al, 19 also Cheng et al 20 who used LA diameter as an independent predictor of POAF after minimally invasive mitral valve surgery reported that patients who developed POAF had larger LA diameter ( P value <0.001).…”

Section: Discussionsupporting

confidence: 90%

Echocardiographic predictors of atrial fibrillation after mitral valve replacement

Sabry

Mansour

El-Azm

et al. 2017

The Egyptian Heart Journal

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ObjectivesDetection of the echocardiographic predictors of post-operative atrial fibrillation in patients with rheumatic mitral valve disease undergoing mitral valve replacement.MethodsThe study included 50 patients with rheumatic mitral valve disease undergoing mitral valve replacement. Preoperative assessment included standard two-dimensional echocardiography to assess LA diameter, volume, and emptying fraction, LV volume and ejection fraction. TDI derived velocity, strain of the left atrium and speckle tracking to assess left ventricular function then postoperative follow up for 1 month for occurrence of atrial fibrillation.ResultsThe incidence of postoperative AF was 44%; these patients were significantly older (P = 0.001) and show higher prevalence of DM (P = 0.001) and HTN (P = 0.001). Also, LA diameters (antero-posterior, transverse and longitudinal) and LA volumes (maximal and minimal) were increased (P < 0.001), but no difference in LA emptying fraction (P > 0.05). Systolic LA strain and left ventricular global longitudinal strain were significantly reduced in those patients (P value <0.001). Echocardiographic predictors of AF were LA systolic strain (P value <0.001) and LV global longitudinal strain (P value = 0.003). Cutoff value for systolic LA strain ≤23 had sensitivity 90.91% and specificity 93.33% in predicting POAF. While, left ventricular global longitudinal strain ≤−14.9% had sensitivity 63.6% and specificity 100.0% in predicting AF.ConclusionLA systolic strain and LV global longitudinal strain were significant predictors of POAF. Echocardiographic parameters can identify patients at greater risk of developing POAF who can benefit from preventive measure and guide the selection of prosthesis.

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Section: Discussionsupporting

confidence: 90%