Geneva, April 28 -- International Clinical Trials Registry received information related to the study (ChiCTR2600122516) titled 'The Effect of Phenylephrine or Norepinephrine Administration During Spinal Surgery on Postoperative Delirium in Elderly Patients: A Prospective Randomized Controlled Trial' on April 14.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: The First Affiliated Hospital of Chongqing Medical University

Condition: Postoperative delirium

Intervention: A Group:Only phenylephrine was used for blood pressure elevation during the operation.

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2026-04-17

Target Sample Size: A Group:167;B Group:167;

Countries of Recrui...