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The Value of Preoperative 3-dimensional over 2-dimensional Valve Analysis in Predicting Recurrent Ischemic Mitral Regurgitation After Mitral Annuloplasty

Abstract

Objectives: Repair for ischemic mitral regurgitation with undersized annuloplasty is characterized by high recurrence rates. We sought to determine the value of pre-repair 3-dimensional echocardiography over 2-dimensional echocardiography in predicting recurrence at 6 months.

Methods: Intraoperative transesophageal 2-dimensional echocardiography and 3-dimensional echocardiography were performed in 50 patients undergoing undersized annuloplasty for ischemic mitral regurgitation. Two-dimensional echocardiography annular diameter and tethering parameters were measured in the apical 2- and 4-chamber views. A customized protocol was used to assess 3-dimensional annular geometry and regional leaflet tethering. Recurrence (grade ≥2) was assessed with 2-dimensional transthoracic echocardiography at 6 months.

Results: Preoperative 2- and 3-dimensional annular geometry were similar in all patients with ischemic mitral regurgitation. Preoperative 2- and 3-dimensional leaflet tethering were significantly higher in patients with recurrence (n = 13) when compared with patients without recurrence (n = 37). Multivariate logistic regression revealed preoperative 2-dimensional echocardiography posterior tethering angle as an independent predictor of recurrence with an optimal cutoff value of 32.0° (area under the curve, 0.81; 95% confidence interval, 0.68-0.95; P = .002) and preoperative 3-dimensional echocardiography P3 tethering angle as an independent predictor of recurrence with an optimal cutoff value of 29.9° (area under the curve, 0.92; 95% confidence interval, 0.84-1.00; P < .001). The predictive value of the 3-dimensional geometric multivariate model can be augmented by adding basal aneurysm/dyskinesis (area under the curve, 0.94; 95% confidence interval, 0.87-1.00; P < .001).

Conclusions: Preoperative 3-dimensional echocardiography P3 tethering angle is a stronger predictor of ischemic mitral regurgitation recurrence after annuloplasty than preoperative 2-dimensional echocardiography posterior tethering angle, which is highly influenced by viewing plane. In patients with a preoperative P3 tethering angle of 29.9° or larger (especially when combined with basal aneurysm/dyskinesis), chordal-sparing valve replacement should be strongly considered.

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References
1.
Gelsomino S, Lorusso R, Bille G, Rostagno C, De Cicco G, Romagnoli S . Left ventricular diastolic function after restrictive mitral ring annuloplasty in chronic ischemic mitral regurgitation and its predictive value on outcome and recurrence of regurgitation. Int J Cardiol. 2008; 132(3):419-28. DOI: 10.1016/j.ijcard.2007.12.058. View

2.
Kron I, Hung J, Overbey J, Bouchard D, Gelijns A, Moskowitz A . Predicting recurrent mitral regurgitation after mitral valve repair for severe ischemic mitral regurgitation. J Thorac Cardiovasc Surg. 2014; 149(3):752-61.e1. PMC: 4687890. DOI: 10.1016/j.jtcvs.2014.10.120. View

3.
Troubil M, Marcian P, Gwozdziewicz M, Santavy P, Langova K, Nemec P . Predictors of failure following restrictive annuloplasty for chronic ischemic mitral regurgitation. J Card Surg. 2011; 27(1):6-12. DOI: 10.1111/j.1540-8191.2011.01342.x. View

4.
Hung J, Papakostas L, Tahta S, Hardy B, Bollen B, Duran C . Mechanism of recurrent ischemic mitral regurgitation after annuloplasty: continued LV remodeling as a moving target. Circulation. 2004; 110(11 Suppl 1):II85-90. DOI: 10.1161/01.CIR.0000138192.65015.45. View

5.
Bouma W, van der Horst I, Wijdh-den Hamer I, Erasmus M, Zijlstra F, Mariani M . Chronic ischaemic mitral regurgitation. Current treatment results and new mechanism-based surgical approaches. Eur J Cardiothorac Surg. 2009; 37(1):170-85. DOI: 10.1016/j.ejcts.2009.07.008. View