Key result
QRST deflection area distributions were strikingly similar over all activation orders and consistently less variable than QRS or ST-T areas, suggesting QRST area is an index of ventricular recovery.
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May support QRST area as activation-independent recovery index; leaves open human arrhythmia risk applications.
Lux et al. (1980) studied this question. Varied activation sequence was evaluated on Variability of the body surface distributions of QRS, ST-T and QRST deflection areas. QRST deflection area distributions were strikingly similar over all activation orders and consistently less variable than QRS or ST-T areas, suggesting QRST area is an index of ventricular recovery.
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