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November 29, 1919


JAMA. 1919;73(22):1685-1687. doi:10.1001/jama.1919.02610480035010

In many of the patients at Camp Travis, the pulse rate increased from 80 to 100, or even 120, per minute during the convalescing period of influenzal pneumonia. The pulse curve in these men showed that this increase in pulse rate began at the time they were first allowed on their feet. Frequently it was so marked that they were ordered back to bed. Others who had been discharged from the hospital to quarters or duty were returned for observation. Some complained of shortness of breath, weakness, dizziness, and palpitation of the heart on exertion. The point of especial interest was whether the influenza had produced some organic disease of the heart, such as myocarditis, or had merely served to bring into the open tachycardias that otherwise might have gone unnoticed. This report is based on the study of ninety-five such men. They were observed from the standpoint of (1)