in order to investigate whether leg amputation is followed by an elevation of sympathetic tone , possibly enhanced by continuous mechanical irritation of the amputation stump by wearing a prosthesis , blood pressure ( bp ) , pulse-rate ( pr ) and plasma catecholamines ( norepinephrine , ne , and epinephrine , e ) were measured in six hypertensive leg-amputees during prosthesis walking as well as during irritation of the amputation stump by vacuum suction in the supine position .
C0028351
norepinephrine
C0014563
epinephrine