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  • Title: Electrical alternation of the T-wave: clinical and experimental evidence of its relationship with the sympathetic nervous system and with the long Q-T syndrome.
    Author: Schwartz PJ, Malliani A.
    Journal: Am Heart J; 1975 Jan; 89(1):45-50. PubMed ID: 1109551.
    Abstract:
    In a patient affected by the "long Q-T" syndrome we observed episodes of alternation of the T-wave associated with emotional or physical stresses. In anesthetized and vagotomized cats, we could reproduce both the lengthening of the Q-T interval and episodes of alternation of the T-wave by electrical stimulation of the left stellate ganglion. Our experiments provide further support on the relationships between the "long Q-T" syndrome and the sympathetic nervous system and indicate that alternation of the T-wave may depend on abrupt increases in the sympathetic discharge.
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