Can Left Atrial Strain and Strain Rate Imaging Be Used to Assess Left Atrial Appendage Function?

ARSLAN S., Simsek Z., GÜNDOĞDU F., Aksakal E., KALKAN M. E., Gurlertop Y., ...Daha Fazla

CARDIOLOGY, cilt.121, sa.4, ss.255-260, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 121 Sayı: 4
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1159/000337291
  • Dergi Adı: CARDIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.255-260
  • Atatürk Üniversitesi Adresli: Evet

Özet

Background: The aim of this study was to evaluate the efficiency of left atrial strain (S) and strain rate (SR) imaging in assessing left atrial appendage (LAA) function. Methods: We studied 78 consecutive patients (35 females and 43 males; mean age 38 +/- 15 years) referred for transesophageal echocardiography (TEE). LAA late emptying velocity (LAA-EV) was calculated. Real-time color Doppler myocardial velocity imaging (MVI) data were recorded from the LAA by TEE and the lateral wall of the left atrium (LA) by transthoracic echocardiography. Longitudinal S and SR were measured in the mid portion of the lateral LA wall and lateral LAA wall during the contractile period. LAA late systolic velocity (LSV) and LA-LSV were obtained from Doppler analysis. Results: A significant positive correlation was detected between LAA-EV and MVI parameters (for LAA-S, r = 0.88, p < 0.001; for LAA-SR, r = 0.84, p < 0.001; for LAA-LSV, r = 0.83, p < 0.001; for LA-S, r = 0.84, p < 0.001; for LA-SR, r = 0.79, p < 0.001, and for LA-LSV, r = 0.70, p < 0.001). In addition, a significant positive correlation was detected between LAA-S and LA-S (r = 0.85, p < 0.001). Conclusion: We suggest that LA-S and LA-SR imaging is a beneficial method to evaluate LAA functions non-invasively. Copyright (C) 2012 S. Karger AG, Basel