Effects of thoracic epidural anesthesia on spinal tracts

Effects of thoracic epidural anesthesia on spinal tracts - Effects of thoracic epidural anesthesia on spinal tracts

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000012371

Enrollment

Registered

2013-11-21

Start date

2013-11-21

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 elective lung surgery patients undergoing general anesthesia and thoracic epidural anesthesia

Interventions

0.2% ropivacaine 10ml grou 0.375% ropivacaine 10ml group 0.75% ropivacaine 10ml group

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Adult elective lung surgery patients undergoing general anesthesia and thoracic epidural anesthesia

Exclusion criteria

Exclusion criteria: 1)Neuromuscular diseases 2)Remarkable neurological symptoms 3)Contraindications for epidural anesthesia 4)History of Allergy to ropivacaine or drugs on the protocol 5)Estimated the trial entry inappropriate

Design outcomes

Primary

Measure	Time frame
Percent changes in the amplitude of motor evoked potentials in a lower extremity at 60 minutes after the epidural ropivacaine administration.	—

Secondary

Measure	Time frame
1)Percent changes in the amplitudes of motor evoked potentials in lower extremities at 15, 30, 45, 90, 120, 150 and 180 minutes after the epidural ropivacaine administration. 2)Percent changes in the amplitudes of somatosensory evoked potentials in lower extremities after the epidural ropivacaine administration. 3)Percent changes in the latency of motor evoked potentials in lower extremities after the epidural ropivacaine administration. 4)Percent changes in the latency of somatosensory evoked potentials in lower extremities after the epidural ropivacaine administration.	—

Measure

Time frame

1)Percent changes in the amplitudes of motor evoked potentials in lower extremities at 15, 30, 45, 90, 120, 150 and 180 minutes after the epidural ropivacaine administration. 2)Percent changes in the amplitudes of somatosensory evoked potentials in lower extremities after the epidural ropivacaine administration. 3)Percent changes in the latency of motor evoked potentials in lower extremities after the epidural ropivacaine administration. 4)Percent changes in the latency of somatosensory evoked potentials in lower extremities after the epidural ropivacaine administration.

—

Countries

Japan

Contacts

Public ContactToshiyuki Tobita

Niigata University Medical and Dental Hospital Department of Anesthesiology

zz-top@med.niigata-u.ac.jp025-227-2328

Outcome results

None listed

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