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[Assessment of left ventricular functions with strain and strain rate echocardiography and tissue Doppler imaging in patients with cardiac tamponade]

Enbiya Aksakal, Serdar Sevimli, Ziya Simşek, Mehmet Ali Elbey, Mustafa Kurt, Ibrahim Halil Tanboğa, Ahmet Kaya, Mustafa Kemal Erol
Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır 2011, 39 (6): 479-86

OBJECTIVES: We evaluated left ventricular (LV) myocardial functions with strain (S) and strain rate (Sr) echocardiography and tissue Doppler imaging (TDI) before and after pericardiocentesis in patients with cardiac tamponade.

STUDY DESIGN: The study included 27 patients (19 men, 8 women; mean age 51.4 ± 16.3 years) who underwent pericardiocentesis following clinical and echocardiographic diagnosis of cardiac tamponade. Besides echocardiographic parameters of LV functions, S/Sr parameters and TDI velocities were measured before and five days after pericardiocentesis, including peak systolic S, peak systolic Sr (Sr-s), peak early diastolic Sr (Sr-e), peak late diastolic Sr (Sr-a), peak lateral and septal mitral annular systolic (Sm), early diastolic (E'), and late diastolic (A') velocities.

RESULTS: Pericardiocentesis was successful in all the patients, resulting in significant patient comfort and symptomatic improvement. In segmental analysis, there were no significant differences in peak systolic S and Sr values obtained before and after pericardiocentesis (p>0.05), except for basal lateral segment S and apical anterior segment Sr-s values (p<0.05). After pericardiocentesis, Sr-e and Sr-a values measured in all the walls and segments, and TDI-derived lateral and septal mitral E' and A' velocities showed significant decreases (p<0.05). All these changes demonstrated by S and Sr echocardiography corresponded well to those obtained by TDI.

CONCLUSION: We concluded that S and Sr echocardiography was not superior to TDI in the assessment of LV functions in patients with cardiac tamponade.


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