Efficacy of Prophylactic Phenylephrine in Preventing Post- Arachnoid Hypotension During Elective Urological Surgeries

Abstract

Background: Spinal anaesthesia is frequently associated with hypotension due to sympathetic
blockade, which can lead to serious complications, especially in urological procedures.
Phenylephrine, a selective α₁-adrenergic agonist, has been studied as a prophylactic vasopressor to
counteract this drop in blood pressure.
Aim: To evaluate the effectiveness of intramuscular (IM) phenylephrine in preventing spinal
anaesthesia-induced hypotension in normotensive patients undergoing elective urological
surgeries.