Original ArticlesAssessment of left ventricular function using mitral annular velocities in patients with congestive heart failure with or without the presence of significant mitral regurgitation*,**,*
Section snippets
Patients studied
We included 125 consecutive patients admitted to the department of cardiology at our institution as a result of CHF of different causes. The CHF was defined as the presence of clinical symptoms and signs of right heart failure, left heart failure, or both at the time of admission. Excluded were 29 patients as a result of rapid atrial fibrillation, significant aortic valve disease, or insufficient echocardiographic quality. Ultimately, 96 patients were analyzed in this study. A total of 12
Results
The basic echocardiographic parameters of patients as compared with healthy participants are shown in Table 1. CHF, Patients with congestiveEmpty Cell CHF HP P value Heart rate (bpm) 80 ± 16 68 ± 12 <.01 Left-atrial dimension (mm) 44 ± 6 34 ± 3 <.001 Left-ventricular dimension (mm) 59 ± 9 44 ± 4 <.001 Ejection fraction (%) 27 ± 8 65 ± 5 <.001 The ratio between transmitral E/A waves 1.72 ± 1.2 0.96 ± 0.41 <.001
Discussion
Recording the myocardial velocities during the cardiac cycle is a new way of assessing myocardial contraction and relaxation. DTI records the systolic contraction and diastolic relaxation of the ventricles. Several methods have been proposed to analyze cardiac function, eg, pulsed wave DTI, color M-mode, tissue tracking.8, 9, 20 The methods have been applied to assess myocardial function in different clinical conditions, eg, myocardial infarction, ischemic heart disease.10, 11, 12 Currently,
Conclusion
Both the systolic and diastolic annular velocities are significantly decreased in patients with CHF, compared with healthy participants. The systolic mitral annular velocity correlated relatively well with the LV EF both in patients with and without severe MR. A reduced systolic mitral annular velocity can be used to assess a severely depressed EF. Recording of mitral and tricuspid annular velocities using pulsed wave DTI is simple in patients with CHF.
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2014, Journal of the Saudi Heart AssociationCitation Excerpt :It was also found that the correlation between ejection fraction (EF) and the systolic mitral annular velocity is relatively good irrespective of the presence or absence of significant mitral regurgitation. Measurements of annular velocities constitute a simple and useful method for evaluating patients with heart failure [19]. In another study, it was found that M-mode echocardiography and pulsed-wave DTI used for assessment of mitral annular motion are useful methods for evaluation of LV function.
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Supported in part by a grant from the Swedish Heart-Lung Foundation.
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Reprint requests: Mahbubul Alam, MD, Department of Cardiology, Södersjukhuset, S-118 83, Stockholm, Sweden (E-mail: [email protected]).
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