Effect of preload on left ventricular longitudinal strain by 2D speckle tracking.
| Autor: | Choi JO; Division of Cardiology, Department of Medicine, Samsung Medical Center, Sungkyukwan University School of Medicine, Seoul, Korea., Shin DH, Cho SW, Song YB, Kim JH, Kim YG, Lee SC, Park SW |
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| Jazyk: | angličtina |
| Zdroj: | Echocardiography (Mount Kisco, N.Y.) [Echocardiography] 2008 Sep; Vol. 25 (8), pp. 873-9. |
| DOI: | 10.1111/j.1540-8175.2008.00707.x |
| Abstrakt: | Background: Peak systolic longitudinal strain (PSLS) obtained using the 2D speckle tracking method is a novel indicator of the long-axis function of the left ventricle (LV). We used the 2D strain profile to examine the effect of preload reduction by hemodialysis (HD) on LV PSLS in patients with end-stage renal disease (ESRD). Method and Results: Twenty-nine pairs of echocardiographic evaluations were obtained before and after dialysis. Global LV PSLS was -18.4 +/- 2.9%, at baseline and decreased to -16.9 +/- 3.2% after HD (P < 0.001). Segmental analysis showed that the decrease in PSLS after dialysis was most prominent in mid-LV segments (-17.1 +/- 3.5% vs. -15.4 +/- 3.4%, P < 0.001). Conclusion: PSLS obtained from the 2D strain profile is a reliable parameter that may be useful for evaluating LV systolic long-axis function. However, PSLS should be applied cautiously in ESRD patients because it could be affected by dialysis. |
| Databáze: | MEDLINE |
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