Routine use of quantitative pupillometry in prehospital emergency patients with impaired conciousness: a pilot study.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00040076

Enrollment

Registered

2026-04-23

Start date

2026-04-25

Completion date

Unknown

Last updated

2026-06-01

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

Conditions

impaired consciousness

Interventions

Group 1: Pre-hospital emergency patients with impaired consciousness - Dispatch of an ambulance crewed by an emergency doctor due to impaired consciousness as a primary or secondary symptom - Current

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Pre-hospital emergency patients with impaired consciousness

Exclusion criteria

Exclusion criteria: • Presence of an acute eye injury • Use of topical mydriatics or miotics within the last 24 hours • Inability to open the eyelids • Age < 18 years

Design outcomes

Primary

Measure	Time frame
Assessment of the applicability of automated quantitative pupillometry in the emergency medical services by prehospital emergency medicine doctors and/or paramedics	—

Secondary

Measure	Time frame
- Pupil size and reactivity characteristics (both pupils) o Baseline pupil diameter o Maximum variation in pupil size o Stimulation time in flash mode o Percentage change in pupil size before/after o Maximum pupil constriction o Constriction latency o Reactivity level assessed using the PLR - Frequency of use in various underlying conditions	—

Countries

Germany

Contacts

Public ContactDr. med. Yannik Kropp

Klinik für Anästhesiologie, Operative Intensivmedizin und Schmerzmedizin

yannik.kropp@umm.de+49 621 383 2415

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026