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- W2003016964 abstract "Background: Normalization of heart rate post–pacing stress echocardiography (PASE) could enable evaluation of effect of ischemia on diastolic function. Methods: We examined the effect of pacing on left ventricular (LV) filling in 55 patients who underwent a transesophageal PASE. Pulse wave Doppler of mitral inflow was obtained at baseline and during transition from peak pacing to up to three beats immediate post pacing. Results: Thirty-four patients (62%; 62 ± 12 years) had normal (NL) PASE, wall motion score index (WMSI) 1 ± 0 at baseline and during PASE. Sixteen patients (29%; 64 ± 12 years) had ischemic (ISCH) PASE, WMSI 1.07 ± 0.08 at baseline and 1.40 ± 0.21 during PASE. Five patients (9%; 81 ± 5 years) had abnormal (ABN) PASE, WMSI 1.55 ± 0.34 at baseline and 1.55 ± 0.34 during PASE. The ABN group had the most pronounced decrease in deceleration time (DT) seen in all three post-PASE beats (221 ± 29 ms at baseline vs. 145 ± 46, 144 ± 26 and 144 ± 18 ms at beats 1, 2, and 3, P < 0.005 from baseline for all). The DT reduced significantly at post-PASE beat 1 from baseline (234 ± 45 ms vs. 158 ± 36 ms, P = 0.02) in the ISCH group, whereas no significant change in DT occurred in the NL group (239 ± 74 ms vs. 222 ± 58 ms, P = 0.14) at beat 1. Conclusion: In ISCH and ABN ventricles the duration of early diastolic filling decreased post-pacing. This new finding of a shortened deceleration time (DT) may be a marker of an ischemic response in PASE reflecting abnormal LV compliance." @default.
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- W2003016964 date "2007-07-01" @default.
- W2003016964 modified "2023-09-26" @default.
- W2003016964 title "A Novel Finding to Assess Ischemia in Pacing Stress Echocardiography (PASE)" @default.
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- W2003016964 doi "https://doi.org/10.1111/j.1540-8175.2007.00441.x" @default.
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