What happens to heart rate with bleeding in the brain?

What happens to heart rate with bleeding in the brain?

When it bleeds within the brain, the intracranial pressure goes up. This causes a reflex increase in the pulse pressure with increased systolic pressure and slowing of the heart rate. This known as the Cushing reflex. Other names for this phenomenon are:  vasopressor response, Cushing effect, Cushing reaction, Cushing phenomenon, Cushing response, or Cushing’s Law, all these after Harvey Cushing, who described it in the beginning of the twentieth century.

Reference

  1. Cushing H. Concerning a definite regulatory mechanism of the vasomotor centre which controls blood pressure during cerebral compression. Bull Johns Hopkins Hosp.1901; 126: 289–292.