The following two cases present several instructive phases of cardiovascular disturbance which will be discussed in detail following the case histories.
REPORT OF CASES
Case 1.
—Mrs. G., aged 60; white; housework; born in Ireland; admitted Sept. 28, 1913; discharged Nov. 8, 1913. The patient was admitted with the diagnosis of acute appendicitis. Appendectomy was performed a few hours after admission to the ward and the appendiceal region drained. Recovery was slow and when the patient was discharged there was a persistent, discharging sinus. While in the surgical ward note was made, "heart beats with a very slow rhythm." The patient was discharged from the surgical service Nov. 8, 1913, and readmitted to the medical service Dec. 30, 1913, on account of dizziness, headache and faintness. She had complained of the buzzing in the head for the previous three months with headaches and dizziness, had had frequent dizzy spells, and