Study on the measurement of capillary refill time with different light colors.

Study on the measurement of capillary refill time with different light colors. - CRT-Colour

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00028764

Enrollment

Registered

2023-01-23

Start date

2023-02-01

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

disturbances of microcirculation

Interventions

Group 1: Measurement of digital capillary refill time using developed device (bidirectional OLED microdisplay) at 8 different illumination colors on the forearm of healthy adult volunteers.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Declaration of consent ASA I-II

Exclusion criteria

Exclusion criteria: Disapproval BMI>30kg/m2 peripheral arterial occlusive disease Raynaud's disease chronic skin diseases extensive injuries/scars on forearms rheumatism or rheumatoid diseases varicosis at examination site previous operations on the arms severe edema of the arms

Design outcomes

Primary

Measure	Time frame
Measurement of digital capillary refill time at rest on the forearm with 8 different illumination colors	—

Secondary

Measure	Time frame
Variation of the digital recapillarization times with different illumination colors	—

Countries

Germany

Contacts

Public ContactTorsten Richter

Universitätsklinikum Carl Gustav Carus

crt@ukdd.de+49 351 458 4110

Outcome results

None listed

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