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. 2013 Sep;68(9):1225-30.
doi: 10.6061/clinics/2013(09)09.

Right ventricular involvement in anterior myocardial infarction: a tissue Doppler-derived strain and strain rate study

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Right ventricular involvement in anterior myocardial infarction: a tissue Doppler-derived strain and strain rate study

Osman Sonmez et al. Clinics (Sao Paulo). 2013 Sep.

Abstract

Objective: Strain and strain rate imaging is currently the most popular echocardiographic technique that reveals subclinical myocardial damage. There are currently no available data on this imaging method with regard to assessing right ventricular involvement in anterior myocardial infarction. Therefore, we aimed to evaluate right ventricular regional functions using a derived strain and strain rate imaging tissue Doppler method in patients who were successfully treated for their first anterior myocardial infarction.

Methods: The patient group was composed of 44 patients who had experienced their first anterior myocardial infarction and had undergone successful percutaneous coronary intervention. Twenty patients were selected for the control group. The right ventricular myocardial samplings were performed in three regions: the basal, mid, and apical segments of the lateral wall. The individual myocardial velocity, strain, and strain rate values of each basal, mid, and apical segment were obtained.

Results: The right ventricular myocardial velocities of the patient group were significantly decreased with respect to all three velocities in the control group. The strain and strain rate values of the right mid and apical ventricular segments in the patient group were significantly lower than those of the control group (excluding the right ventricular basal strain and strain rate). In addition, changes in the right ventricular mean strain and strain rate values were significant.

Conclusion: Right ventricular involvement following anterior myocardial infarction can be assessed using tissue Doppler based strain and strain rate.

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Conflict of interest statement

No potential conflict of interest was reported.

Figures

Figure 1
Figure 1
A) Myocardial velocities associated with the basal, mid, and apical segments of the right ventricle. B) Myocardial deformation curves associated with the basal, mid, and apical segments of the right ventricle. C) Strain curve of the mid segment of the right ventricle. D) Strain rate curve of the mid segment of the right ventricle.
Figure 2
Figure 2
Myocardial velocity, strain, and strain rate values of the basal, mid, and apical segments of the right ventricle showing RV involvement from the base to the apex in Ami patients.
Figure 3
Figure 3
Myocardial velocity, strain, and strain rate values of the basal, mid, and apical segments of the right ventricle in the control group.

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