Excellent response to β-1 adrenergic receptor blockade (metoprolol) and exercise restriction in high-risk type 1 long QT syndrome. A 22-year follow-up.

HeartRhythm Case Rep · 2022 · PMC9039562 · PMID 35492848

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showed a trendno p-value reported

Metoprolol showed a trend to decreased cardiac events only in LQT1, but there was no significant difference.

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