The American journal of cardiology
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We evaluated the frequency of cardiovascular complications in chest pain patients with normal or non-specific electrocardiograms admitted to noncardiac care unit monitored beds and found that none of 261 patients had life-threatening dysrrhythmias requiring treatment.
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Among 20 consecutive patients (65% women) with drug-associated torsades de pointes, chemical evidence for hypothyroidism was found in only 10% of both women and men. Subclinical hypothyroidism is therefore unlikely to account for the consistently observed sex difference in the propensity to torsades de pointes.