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Measurement of the pupillary light reflex after critical illness

Measurement of the pupillary light reflex after critical illness - RICI (Reaction of the Iris after Critical Illness)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00031629
Enrollment
100
Registered
2023-04-05
Start date
2023-04-06
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

G62.8

Interventions

Group 1: Patients who developed an intensive care unit aquired weakness after critical illness and who do not require analgosedation. Timepoint of measurement normally would be briefly prior to discha

Sponsors

Universitätsmedizin Göttingen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Signed informed consent (by participant or legal guardian)

Exclusion criteria

Exclusion criteria: - acute or chronic severe neurological disease (progressive dementia, degenerative disease of the central nervous system) - Diseases of the optic system (e.g. glaucoma, macula degeneration, macula degeneration, cerebral infarction of parts of the optic tracts and radiation) - Current treatment with centrally acting medication with effects on the pupillary light reaction (e.g. opioids and porpofol) Current treatment with medication directly modifying the pupillary light reaction (medication with mydriatic effects, medication with miotic effects (e.g. parasympathmimetic medication)

Design outcomes

Primary

MeasureTime frame
Latency of the pupillary light reflex as measured by an electronic pupillometer (PLR-3000 Pupillometer); once, after the critical phase of the main acute disease

Secondary

MeasureTime frame
- Amplitude of the pupillary light reflex - Velocity of the pupillary light reflex as measured by an electronic pupillometer each (PLR-3000 Pupillometer)

Countries

Germany

Contacts

Public ContactCaspar Stephani

Universitätsmedizin Göttingen

Caspar.Stephani@med.uni-goettingen.de0175-3431572

Outcome results

None listed

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