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Clinical study on opioid sensitivity index based on sympathetic response evoked threshold

Nonrandomized controlled trials with external controls on the effect of opioid sensitivity index based on sympathetic response evoked threshold on blood pressure change during surgical incision

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs062240075
Enrollment
20
Registered
2024-11-06
Start date
2024-11-06
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

Laparotomy under general anesthesia

Interventions

The study is performed during the induction of general anesthesia in general. After induction with propofol, remifentanil is administered continuously to achieve an effect site concentration of 2 ng/m
general anesthesia, MECK

Sponsors

Kamiya Satoshi
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: A) Cases in which the patient is at least 18 years of age at the time consent is obtained and in which laparotomy is scheduled to be performed under general anesthesia. B) Cases in which invasive radial arterial blood pressure monitering will be performed. C) Cases in which the patient's written consent to participate in this study is obtained.

Exclusion criteria

Exclusion criteria: A) Cases with atrial fibrillation or irregular R-R interval. B) Cases in which it is inappropriate to perform invasive radial arterial monitering. C) Patients with significant hemodynamic or neurologic impairment in the upper extremities. D) Patients with severe stenosis or occlusive lesions in cerebral vessels. E) Cases in which the use of remifentanil, propofol, or rocuronium is contraindicated. F) Cases in which the anesthesiologist in charge deems it inappropriate to conduct the study.

Design outcomes

Primary

MeasureTime frame
Difference between intervention group and external control group in the mean value of rate of change of blood pressure during surgical skin incision

Secondary

MeasureTime frame
1. Evaluation of the equivalence of the high MECK group among the intervention group to the external control group 2. Blood pressure before surgical skin incision in the intervention group

Contacts

Public ContactHiroki Sato

Hiroshima University Hospital

sato721@hiroshima-u.ac.jp+81-82-257-5267

Outcome results

None listed

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