Observational study for improvement of identifying the intervertebral space for indwelling an epidural catheter

Observational study for improvement of identifying the intervertebral space for indwelling an epidural catheter - Study for better identification of intended intervertebral space in epidural anesthesia

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000027843

Enrollment

Registered

2017-08-01

Start date

2017-08-01

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

Patients who received epidural anesthesia during surgery

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who underwent surgery on the upper or lower abdomen performed by gastroenterologic surgery, obstetrics and gynecology, and urology under general anesthesia with epidural anesthesia

Exclusion criteria

Exclusion criteria: 1 Patients with marked deformity and degeneration of the spine 2 Patients who are difficult to identify punctured intervertebra space due to poor visualization of epidural catheter and spine with postoperative radiograph

Design outcomes

Primary

Measure	Time frame
Using the prediction formula to calculate the length of the thoracic spine from body height, we determine the estimated position of the 12th thoracic spinous process of the participants. The epidural catheter is then indwelled from any intervertebral space with reference to that position. In the postoperative X - ray, the actual indwelling intervertebral space and the predicted intervertebral space are obtained. When the difference is 0, we determined as success, otherwise when deviation within the 1 vertebra, we determined as intermediate success. Between the cases of epidural puncture using prediction formula and puncture using other methods, that is, puncture using conventional method, we find success ratio and intermediate success ratio. The main evaluation item is the success ratio and the intermediate success ratio. It is judged whether there is a statistically significant difference in the success ratio between the two groups.	—

Measure

Time frame

Using the prediction formula to calculate the length of the thoracic spine from body height, we determine the estimated position of the 12th thoracic spinous process of the participants. The epidural catheter is then indwelled from any intervertebral space with reference to that position. In the postoperative X - ray, the actual indwelling intervertebral space and the predicted intervertebral space are obtained. When the difference is 0, we determined as success, otherwise when deviation within the 1 vertebra, we determined as intermediate success. Between the cases of epidural puncture using prediction formula and puncture using other methods, that is, puncture using conventional method, we find success ratio and intermediate success ratio. The main evaluation item is the success ratio and the intermediate success ratio. It is judged whether there is a statistically significant difference in the success ratio between the two groups.

—

Secondary

Measure	Time frame
We will process the influence of the background factor of the patient and that of participating doctors on the predictive value by multivariate analysis. We use this result as a secondary evaluation item.	—

Countries

Japan

Contacts

Public ContactTadashi Shigematsu

Saiseikai Shiga Hospital dept. of ethical comittie

dob3gamma-mag01@yahoo.co.jp077-552-1221

Outcome results