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- W1984944716 abstract "The pressure/volume changes during early (E3), mid (M3) and late (L3) thirds of ejection were analyzed in 20 normal children (W), 7 aortic coarctation (Co), and 20 aortic stenosis (AS). Mean peak systolic gradient was 30 mmHg in Co, and 31 in AS. Ejection fraction at E3, M3, and L3 were 0.33, 0.36 and 0.27 for W; 0.35, 0.37 and 0.28 for Co; 0.24, 0.41 and 0.28 for AS. Tension-time index (TTI) in mmHg-sec, stroke index (SI), output index (OI), ejection rate (SI/sec) and SI/TTI ratio in cc/mmHg-sec/m2 were obtained. These are summarized below (P values vs N: *-<.05; **- < .001). Normal ejection is characterized by maximal flow and high output/force ratio during E3. This pattern is absent in AS but is preserved in Co due to unobstructed flow to aorta and presence of collaterals." @default.
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- W1984944716 date "1977-04-01" @default.
- W1984944716 modified "2023-10-18" @default.
- W1984944716 title "LEFT VENTRICULAR EJECTION PATTERNS IN CHILDREN WITH OUTFLOW OBSTRUCTION" @default.
- W1984944716 doi "https://doi.org/10.1203/00006450-197704000-00195" @default.
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