Left ventricular global strain for estimating relaxation and filling pressure: A multicenter study

Taichi Hayashi, Satoshi Yamada, Hiroyuki Iwano, Masahiro Nakabachi, Mamoru Sakakibara, Kazunori Okada, Daisuke Murai, Hisao Nishino, Kenya Kusunose, Kiyotaka Watanabe, Tomoko Ishizu, Kazuaki Wakami, Hirotsugu Yamada, Kaoru Dohi, Yoshihiro Seo, Nobuyuki Ohte, Taisei Mikami, Hiroyuki Tsutsui

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Background: Speckle-tracking echocardiography (STE)-derived parameters may have better correlation with left ventricular (LV) relaxation and filling pressure than tissue Doppler-derived parameters. However, it has not been elucidated which parameter – strain or strain rate – and which direction of myocardial deformation – longitudinal or circumferential – is the most useful marker of LV relaxation and filling pressure. Methods and Results: We conducted a prospective multicenter study and compared the correlation of tissue Doppler- and STE-derived parameters with the time constant of LV pressure decay (τ) and LV mean diastolic pressure (MDP) in 77 patients. The correlation of early-diastolic mitral annular velocity (e´) with τ was weak (r=−0.32, P<0.01), and that of peak longitudinal strain (LS) was the strongest (r=−0.45, P<0.001) among the STE-derived parameters. There was a modest correlation between LVMDP and the ratio of early-diastolic inflow velocity (E) to e´ (E/e´) (r=0.50, P<0.001). In contrast, the ratio of E to LS (E/LS) correlated strongly with LVMDP (r=0.70, P<0.001). The correlation of E/LS with LVMDP was significantly better than that for E/e´ (P<0.01). Receiver-operating characteristic analysis showed that E/LS had the largest area under the curve for distinguishing elevated LVMDP (E/LS 0.86, E/e´ 0.74, E/A 0.67). Conclusions: STE-derived longitudinal parameters correlated well with LV relaxation and filling pressure. In particular, E/LS could be more accurate than E/e´ for estimating LV filling pressure.

Original languageEnglish
Pages (from-to)1163-1170
Number of pages8
JournalCirculation Journal
Volume80
Issue number5
DOIs
Publication statusPublished - 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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