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July 1966

Rarity of Atrial Tachycardia in Acute Myocardial Infarction and in Thyrotoxicosis

Author Affiliations


From the Medical Clinic of the Peter Bent Brigham Hospital, Boston.

Arch Intern Med. 1966;118(1):41-42. doi:10.1001/archinte.1966.00290130043008

A GREAT variety of cardiac arrhythmias are observed during the acute stage of coronary thrombosis with myocardial infarction. Some are quite serious and others are less so. Paroxysmal ventricular tachycardia, paroxysmal atrial fibrillation, nodal rhythm, and complete heart block are particularly common complications of acute myocardial infarction. Similarly, paroxysmal atrial fibrillation or flutter are frequent features of thyrotoxicosis. It is odd, however, that classical paroxysmal atrial tachycardia, a common form of rapid heart action in healthy individuals and in patients suffering from valvular or other forms of heart disease, has appeared to be rare in both acute myocardial infarction and in thyrotoxicosis. The present study was undertaken to provide evidence for or against this simple, clinical impression.

Materials and Methods  The medical records of 400 unselected cases of definite acute myocardial infarction seen at the Peter Bent Brigham Hospital were reviewed. These included 208 consecutive cases reported in 19411

Rosenbaum, F.F., and Levine, S.A.:  Prognostic Value of Various Clinical and Electrocardiographic Features of Acute Myocardial Infarction: 1. Immediate Prognosis ,  Arch Intern Med 68:918 ( (Nov) ) 1941.Crossref
Rosenblum, H.H., and Levine, S.A.:  What Happens Eventually to Patients With Hyperthyroidism and Significant Heart Disease Following Subtotal Thyroidectomy?  Amer J Med Sci 185:219 ( (Feb) ) 1933.Crossref