Geneva, June 22 -- International Clinical Trials Registry received information related to the study (ChiCTR2600126616) titled 'The correlation between perioperative electroencephalographic features and perioperative neurocognitive function in elderly patients: A prospective observational cohort study' on June 12.

Study Type: Observational study

Study Design: Cross-sectional

Primary Sponsor: zhongda hospital southeast university

Condition: Aging, Perioperative Anesthetic States

Intervention: old-old group:None oldest-old group:None

Recruitment Status: Not Recruiting

Phase: N/A

Date of First Enrollment: 2026-06-21

Target Sample Size: old-old group:61;oldest-old group:61;young-old group:61;

Countries of Recruitment: China

T...