Feasibility of monitoring depth of analgesia by ultrasound of pupillary dilated reflex diameter in response to nociceptive stimulation

Feasibility of monitoring depth of analgesia by ultrasound of pupillary dilated reflex diameter in response to nociceptive stimulation - Feasibility of monitoring depth of analgesia by ultrasound of pupillary dilated reflex diameter in response to nociceptive stimulation

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000047145

Enrollment

Registered

2022-03-11

Start date

2020-01-01

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

Adult healthy volunteers

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Healthy adults.

Exclusion criteria

Exclusion criteria: Any ocular disease , neurological diseases , history of any type of ocular surgery or laser treatment and taking topical or systemic medications potentially affecting pupillary function.

Design outcomes

Primary

Measure	Time frame
Pupil dilation reflex change in response to noxious stimulation measured by infrared video pupillometry and ultrasonography.	—

Secondary

Measure	Time frame
NRS(Numerical Rating Scale) after noxious stimulation.	—

Countries

Japan

Contacts

Public ContactMao Konno

Hirosaki University Hospital Anesthesiology

mao511@hirosaki-u.ac.jp0172-33-5111

Outcome results