Anaesthesia Regional anaesthesia 6d9dfed8 In high spinal anaesthesia what is seen - A Hypotension & Bradycardia B Hypotension & Tachycardia C Hypeension & Bradycardia D Hypeension & Tachycardia High-Yield Explanation High spinal anaesthesia involving T4 thoracic segment blocks sympathetic autonomic fibres for hea resulting in vagal dominance. Hence, hypotension and bradycardia occur.