Geneva, April 20 -- International Clinical Trials Registry received information related to the study (ChiCTR2600122297) titled 'Study on the Effect of Dexmedetomidine Combined with Stellate Ganglion Block on Perioperative Cerebral Function in Elderly Patients with Preoperative Sleep Disorders' on April 11.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: The First Affiliated Hospital of Nanchang University

Condition: Sleep disorders

Intervention: Sleep disorder group:No The group with good sleep quality:No The treatment group for sleep disorders:Two days before the operation, the patients were given brain microstate monitoring before going to sleep every day. Then, dexmedetomidine (DEX) at a dose of 1.0 ...