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- W1503798517 abstract "Background . QRS duration has long been established as a strong predictor of sudden cardiac death in patients after surgical correction of Tetralogy of Fallot (TOF). Several factors has been correlated to QRS duration, i.e severity of pulmonal regurgitation and right ventricular volume after TOF correction. But there is no established relation between right ventricular function and QRS duration after surgical correction TOF . Objectives . We aimed to investigate the relation between QRS duration and right ventricular function and whether patients after TOF repair with right bundle branch block have left ventricular dissynchrony. Methods . 50 patients with repaired TOF were studied. Right ventricular function were derived from tissue Doppler imaging Tei index. Left ventricular dissynchrony were derived from tissue Doppler imaging. The time interval between the onset of QRS complex and the onset of systolic ejection was measured for six left ventricular basal wall, i.e septal, lateral, anteroseptal, posterior, anterior and inferior wall. Mechanical delay from septal to lateral wall, antero-septal to posterior wall and anterior to inferior wall was calculated. Measured data were correlated with QRS duration. Results . There was relation between QRS duration and right ventricular function (P = 0.028, r = 0.44). Ten (20%) of the examined patients after TOF repair had LV dissnynchrony particularly in patients with RBBB and prolonged QRS duration (160 ± 9 ms). Conclusions . There is correlation between right ventricular function and QRS duration. Left ventricular dissynchrony may exist in patients after TOF repair with RBBB." @default.
- W1503798517 created "2016-06-24" @default.
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- W1503798517 date "2013-06-01" @default.
- W1503798517 modified "2023-09-26" @default.
- W1503798517 title "Relation Between QRS Duration, Right Ventricular Func-tion and Left Ventricular Dyssinchrony in Patients After Surgical Correction of Tetralogy Fallot" @default.
- W1503798517 doi "https://doi.org/10.30701/ijc.v28i4.229" @default.
- W1503798517 hasPublicationYear "2013" @default.
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