Echocardiographic Predictors of Left Ventricular Function and Clinical Outcomes After Successful Mitral Valve Repair: Conventional Two-Dimensional Versus.

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Echocardiographic Predictors of Left Ventricular Function and Clinical Outcomes After Successful Mitral Valve Repair: Conventional Two-Dimensional Versus Speckle- Tracking Parameters Jong-Min Song, MD, PhD, Se Hun Kang, MD, Eun-Jeong Lee, RDCS, Min-Jung Shin, RDCS, Jae Won Lee, MD, PhD, Cheol Hyun Chung, MD, PhD, Dae-Hee Kim, MD, PhD, Duk-Hyun Kang, MD, PhD, Jae-Kwan Song, MD, PhD The Annals of Thoracic Surgery Volume 91, Issue 6, Pages 1816-1823 (June 2011) DOI: 10.1016/j.athoracsur.2011.02.055 Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Representative examples of measuring global longitudinal strain, peak strain rate, and time to peak strain rate on strain (A) and strain rate (B) curves of 2-dimensional speckle-tracking imaging. The Annals of Thoracic Surgery 2011 91, 1816-1823DOI: (10.1016/j.athoracsur.2011.02.055) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Correlations between preoperative parameters and postoperative left ventricular (LV) ejection fraction after mitral valve repair in patients with severe mitral regurgitation. Correlation coefficients of parameters obtained from conventional echocardiography (A) and (B) tended to be higher than those from speckle-tracking images (C) and (D). (GLSR = global longitudinal strain rate; CSR = circumferential strain rate.) The Annals of Thoracic Surgery 2011 91, 1816-1823DOI: (10.1016/j.athoracsur.2011.02.055) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Receiver operating characteristics curves for predicting normal left ventricular (LV) systolic function (A) and severe LV dysfunction (B) after mitral valve repair in patients with severe mitral regurgitation. (GLSR = global longitudinal strain rate; CSR = circumferential strain rate.) The Annals of Thoracic Surgery 2011 91, 1816-1823DOI: (10.1016/j.athoracsur.2011.02.055) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 Event-free survival rates of groups sorted by preoperative best cutoff values of left ventricular (LV) end-systolic dimension (A), and end-systolic volume (B), for predicting severe postoperative LV dysfunction after mitral valve repair in patients with severe mitral regurgitation. Error bars indicate 95% confidence intervals. The Annals of Thoracic Surgery 2011 91, 1816-1823DOI: (10.1016/j.athoracsur.2011.02.055) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions