Effects of general versus regional anaesthesia on circadian melatonin rhythm and its association with postoperative delirium in elderly patients undergoing hip fracture surgery: study protocol for a prospective cohort clinical trial.

Yi YuanYanan SongGeng WangYunyang JiaYang ZhouXinning MiXixi JiaXiaoxiao WangChang LiuYue LiChengmei ShiYongzheng HanXiangyang GuoWenchao ZhangZhengqian Li

Published in: BMJ open (2021)

ChiCTR1900027393.

Keyphrases

hip fracture
patients undergoing
clinical trial
minimally invasive
coronary artery bypass
atrial fibrillation
heart rate
phase ii
surgical site infection
open label
study protocol
phase iii
blood pressure
coronary artery disease
acute coronary syndrome