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Pupillary light reflex and postoperative delirium

Efficacy of pupillary light reflex (PLR) to detect postoperative delirium in elderly patients

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CRIS
Registry ID
KCT0004514
Enrollment
67
Registered
2019-12-09
Start date
2019-12-04
Completion date
Unknown
Last updated
2019-12-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

None listed

Sponsors

Hanyang University Seoul Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: - Patients undergoing general anesthesia for hip, knee or spine surgery - Age 65 years old or older - Patients who are above the standard level for each age group on the Mini-Mental State Examination (MMSE)

Exclusion criteria

Exclusion criteria: - American Society of Anesthesiologist(ASA) physical status classification IV, V - If normal assessment is difficult because of language barrier, speech disorder, sleep disturbance, mental retardation and dementia - If communication is difficult because of visual or hearing impairment - History of anesthesia and surgery within a month

Design outcomes

Primary

MeasureTime frame
Average dilation velocity (ADV) of pupillary light reflex after 30 and 60 minutes of admisson to post-anesthesia care unit (PACU);Development of delirum in PACU based on CAM-ICU—

Secondary

MeasureTime frame
Other measurements of pupillary light reflex before and after of general anesthesia;Richmond Agitation-Sedation Scale (RASS) and numeric rating scale (NRS) in PACU;Development of postoperative delirium and severity of delirium after PACU discharge—

Countries

Korea, Republic of

Contacts

Public ContactSoo Yeon Kim

Hanyang University Seoul Hospital

zanmori@naver.com+82-2-2290-8680

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026