About changes in cardiovascular activity and respiration in Botkin's disease

According to the severity of the disease, patients (mostly from 16 to 40 years old) were distributed as follows: mild course - in 13, moderate - in 43, severe - in 7 people. There were no complaints from the heart. In the majority in the active period of the disease, muffled heart sounds were noted. At the height of the disease, blood pressure was low in 33 people, normal in 30, the maximum pressure in severe cases decreased to 80, the minimum to 40. A simultaneous decrease in the maximum and minimum pressures was noted in 48%, which indicates the involvement of the heart muscle and blood vessels in the pathological process ...