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- W4236940665 abstract "Abstract Background The effect of percutaneous coronary intervention (PCI) of chronic total occlusion (CTO) on left ventricular dyssynchrony was unclear. Methods Patients with one CTO vessel were included. Tissue Doppler imaging was used to assess the left ventricular dyssynchrony index (DI) in twelve segments before and after successful CTO PCI. Multiple regression was used to identify independent correlates of DI reduction. Results 41 patients were included with the mean age of 65.88 years. 39(95.12%) had left ventricular DI more than 33. It decreased significantly from 67.48 ± 28.73 to 44.69 ± 23.90 (P < 0.01) after successful CTO PCI. PCI of infarct-relative CTO was associated with less percentage of DI reduction (Coefficient [Coef.], 25.60; 95% confidence interval [CI], 8.13–43.08; P < 0.01). Higher initial DI was associated with more percentage of DI reduction (Coef., -0.35; 95% CI, -0.67- -0.03; P = 0.03). Percentage of DI reduction was associated with ejection fraction (EF) improvement (Coef., -5.09; 95% CI, -7.45- -2.72; P < 0.01) with linear relationship (P < 0.01). Conclusion Left ventricular dyssynchrony was reduced early after successful CTO PCI, which predicted EF improvement. The association between dyssynchrony reduction and long-term benefits of CTO PCI are expected." @default.
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- W4236940665 date "2020-06-30" @default.
- W4236940665 modified "2023-10-16" @default.
- W4236940665 title "Early Improvement of Left Ventricular Dyssynchrony After Percutaneous Coronary Intervention in Patients with Single Chronic Total Occlusion Vessel" @default.
- W4236940665 doi "https://doi.org/10.21203/rs.3.rs-38786/v1" @default.
- W4236940665 hasPublicationYear "2020" @default.
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