MICHAEL M. LAKS, M.D., F.A.C.P.; JAMES DAHLGREN, M.D.; WILLIAM J. MANDEL, M.D., F.A.C.P.
To the editor: The availability of a device for the continuous monitoring of electrograms has made possible the detection of occult arrhythmias (1-3). In a case of variant angina pectoris, transient ST-segment elevation was discovered initially by the dynamic electrogram (DECG) (Holter-Avionics system, Electrocardiocorder #350c, Electrocardioscanner #650).
A 60-year-old male was admitted to the hospital for a diagnostic workup for microscopic hematuria. A routine electrocardiogram showed a complete right bundle-branch block, left anterior hemiblock, and premature ventricular and atrial contractions. A dynamic ECG was ordered to detect the possible presence of dysrhythmias that would require the insertion of an artificial
LAKS MM, DAHLGREN J, MANDEL WJ. Variant Angina Pectoris. Ann Intern Med. 1973;78:309–310. doi: 10.7326/0003-4819-78-2-309_2
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Published: Ann Intern Med. 1973;78(2):309-310.
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