Preoperative oral diazepam for intraoperative blood pressure stabilisation in hypertensive patients undergoing vitrectomy under retrobulbar nerve block anaesthesia: study protocol for a randomised controlled trial.

ABSTRACT:

Background

As a type of local anaesthesia, retrobulbar nerve block is often used in vitrectomy, with patients remaining conscious during the operation. The increase in systolic blood pressure (SBP) caused by tension and fear during the operation-especially in patients with a history of hypertension-can negatively impact the safety of the procedure, resulting in suprachoroidal haemorrhage or retinal haemorrhage. Diazepam has a sedative effect and can relieve tension during surgery. This study aims to evaluate the efficacy and safety of diazepam for intraoperative BP stabilisation in hypertensive patients under retrobulbar anaesthesia during surgery.

Methods

This single-centre, double-blind, randomised controlled and parallel clinical trial will include 180 hypertensive patien

SUBMITTER: Qian T 

PROVIDER: S-EPMC9437388 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature