Abstract
It is believed that right ventricular pressure (RVP) at or near systemic levels is associated with negative T waves in VI (TV1), while positive TV1 represents mild RV hypertension. This study was undertaken to assess TV1 morphology as a predictor of RVP in 35 patients (pts,) with isolated ventricular septal defects (VSD) and 28 pts,, with VSD and pulmonary stenosis (PS), aged 0.5-36 mos. who had electrocardiogram and cardiac catheterization within 24 hours. TV1 morphology was classified as positive (TV1+), isoelectric (TV1±), or negative (TV1-). Significant RV hypertension was defined as a systolic RVP ≥60mmHg. or an RVP/LV ≥0.66. Results follow:
Thus, TV1+ appears to be an excellent predictor of significant RV hypertension in pts. with isolated VSD, while TV1- suggests RVP ≤60mmHg. On the contrary, regardless of TV1 morphology, the majority of patients with VSD and PS had significant RV hypertension.
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Juris, A., Ferrer, P., Garcia, O. et al. POSITIVE T WAVES IN RIGHT CHEST LEAD (V1) AS AN INDEX OF RIGHT VENTRICULAR HYPERTENSION IN VENTRICULAR SEPTAL DEFECT IN THE YOUNG. Pediatr Res 11, 393 (1977). https://doi.org/10.1203/00006450-197704000-00144
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DOI: https://doi.org/10.1203/00006450-197704000-00144