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Updated: May 5, 2026

Isolation of Human Atrial Myocytes for Simultaneous Measurements of Ca2+ Transients and Membrane Currents
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Induction of delayed repolarization during chronic beta-receptor blockade.

N Edvardsson, S B Olsson

    European Heart Journal
    |November 1, 1985
    PubMed
    Summary

    Daily metoprolol treatment significantly delays ventricular repolarization, as measured by the Q-T interval. This effect becomes noticeable after two weeks and is confirmed within three weeks of treatment.

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