Author + information
- Noriaki Iwahashi,
- Masaomi Gohbara,
- Kozo Okada,
- Nobuhiko Maejima,
- Mitsuaki Endo,
- Kengo Tsukahara,
- Yoshio Tahara,
- Kiyoshi Hibi,
- Masami Kosuge,
- Toshiaki Ebina,
- Satoshi Umemura,
- Kazuo Kimura and
3D speckle tracking echocardiography (3D tracking) is a novel promising tool. We explored the usefulness of 3D tracking in patients with a first STEMI.
The study included 80 consecutive patients (65men, 65years, maxCPK=3123±3977IU/l) presenting with a first STEMI who underwent primary PCI within 12 hours of onset. Within 24 h of PCI, 2D and 3D speckle tracking echocardiography were performed by iE33 with [Q-lab ver 8.1 (CMQ, Philips), 4D LV-Analysis (TOM-TEC, Germany)]. The standard deviation (SD) of time to regional peak 3D speckle area strain (TM-3Darea) and 3D longitudinal strain (TM-3Dlong) for all 16 segments were assessed. The absolute differences in time-to-peak longitudinal (Tm-long) strains was assessed. LV systolic function was measured by Tc99m-sestamibi SPECT at 2 weeks. Echo was repeated 12 months later and LV remodeling was defined as an absolute increase in LVEDV of 20%.
Although TM-3Darea and TM-3Dlong had significant relationship with LVEF estimated by SPECT at 2 week (r=0.36, 0.12,r=0.4, p<0.01,r espectively), Tm-long did not(r=0.12, p=0.71). 21 patients had LV remodeling at the 12-month. Logistic regression analysis demonstrated that TM-3Dlong was a significant predictor (Odds ratio=3.12, 95%CI=1.023-8.125, p<0.05).
In patients with a first STEMI, time to peak strain estimated by 3D speckle tracking echocardiography immediately after PCI can predict LV function at 2 weeks and LV remodeling after 12 months.
Poster Sessions, Expo North
Monday, March 11, 2013, 9:45 a.m.-10:30 a.m.
Session Title: Imaging: Echo XV
Abstract Category: 18. Imaging: Echo
Presentation Number: 1313-348
- 2013 American College of Cardiology Foundation