Evaluation of analgesic effect of analgesic agents used perioperatively.

Evaluation of analgesic effect of analgesic agents used perioperatively. - Evaluation of analgesic effect under anesthesia

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000014879

Enrollment

100

Registered

2014-08-25

Start date

2014-08-25

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

Patients included are greater than 20 years of age, scheduled for surgery.

Interventions

Stimulation electrodes that activate sensory fibers are placed in the hand or foot of the patients and recording electrodes for evoked potentials are placed on the Cz, C3, and C4. Evoked potentials ar

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients included are greater than 20 years of age, scheduled for surgery.

Exclusion criteria

Exclusion criteria: Patients with a history of alcohol or drug abuse or severe neurologic disease are excluded from the study.

Design outcomes

Primary

Measure	Time frame
Pain visual analogue scale Sensory/pain-evoked potentials	—

Countries

Japan

Contacts

Public ContactSatoshi Tanaka

Shinshu University School of medicine Department of Anesthesiology and Resuscitology

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

Outcome results

None listed

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