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Abstract #4561

Left Ventricular Strain is associated with Outcomes of Pulmonary Valve Replacement in Patients with Repaired Tetralogy of Fallot

Baiyan Zhuang1, Minjie Lu1, and Shihua Zhao1
1Fuwai Hospital, State Key Laboratory of Cardiovascular Disease,PUMC, Beijing, China


Given the fact that patients who have underwent repair of tetralogy of fallot (rTOF) further need pulmonary valve replacement (PVR) due to pulmonary regurgitation, but the effect of PVR is mixed. We prospectively enrolled 45 asymptomatic rTOF patients who required PVR due to moderate or severe pulmonary regurgitation and measured their pre-operative strain and strain rate. After follow-up and analysis, we found that the radial strain (RS), circumferential strain (CS), longitudinal strain (LS), systolic radial strain rate (RSRs), early diastolic radial strain rate (RSRe) and early diastolic longitudinal strain rate (LSRe) before PVR are important prognostic factors for adverse events.

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