Laser speckle contrast analysis to quantify the Allen test

Laser speckle contrast analysis to quantify the Allen test - Quantify the Allen test

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000017749

Enrollment

Registered

2015-06-01

Start date

2015-06-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

none

Interventions

Blood flow of palmar side during Allen test are measured by laser speckle contrast analysis.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Surgical paatients who are scheduled for radial artery cannulation.

Exclusion criteria

Exclusion criteria: Patients with tremor Patients with paralysis

Design outcomes

Primary

Measure	Time frame
quantity of blood flow	—

Secondary

Measure	Time frame
time to reperfusion sensitivity of Allen test	—

Countries

Japan

Contacts

Public ContactSari Shimizu

Shinshu University School of Medicine Department of Anesthesiology and Resuscitology

sari@shinshu-u.ac.jp0263-37-2670

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026