NCT05140486

Brief Summary

Purpose: Patients with severe traumatic optic neuropathy (TON) have limited improvement in visual function despite therapy. The hypothesis of the study is that the targeted shortwave diathermy combined with perceptual training may enhance visual function in patients with severe TON after endoscopic optic nerve decompression (EOND) surgery. Design: Clinical trial Subjects: Twenty-two subjects with severe TON after EOND surgery were randomly assigned to either a rehabilitation (Reh) group or nonrehabilitation (Nreh) group. Methods: High-resolution computed tomography and MRI were used to locate the impaired nerve. The subjects in the Reh group received targeted shortwave diathermy therapy 5 days per week for 4 weeks and perceptual training 5 days per week for 10 weeks. Main Outcome Measures: A thorough evaluation of visual function, visual evoked potential, and diffusion tensor imaging was executed.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jan 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 20, 2017

Completed
4 years until next milestone

First Submitted

Initial submission to the registry

February 1, 2021

Completed
10 months until next milestone

First Posted

Study publicly available on registry

December 1, 2021

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2022

Completed
Last Updated

December 1, 2021

Status Verified

November 1, 2021

Enrollment Period

5.9 years

First QC Date

February 1, 2021

Last Update Submit

November 19, 2021

Conditions

Keywords

Shortwave diathermyperceptual trainingtraumatic optic neuropathy

Outcome Measures

Primary Outcomes (2)

  • MRI

    A 32-channel head coil on a 3.0T MRI system (Philips, Ltd, Best, the Netherlands) was used for the acquisition of imaging data. T1- and T2-weighted, fat-suppressed images were obtained axially through the orbit and some parts of the brain, including the intracranial portion of the optic nerve, postoperatively and 10 weeks after rehabilitation.

    15 minutes

  • Diffusion tensor imaging

    Optic nerve diffusion tensor imaging images were obtained using single-shot echoplanar imaging sequences. The images were acquired from the optic papilla to the orbital apex of the optic nerve with 40 contiguous slices. The region of interest was manually manually placed over the optic nerve at the anterior, middle, and posterior segments on the non-diffusion-weighted image. The fraction anisotropy, mean diffusivity, axial diffusivity, and radial diffusivity of optic nerves were measured.

    15 minutes

Secondary Outcomes (3)

  • Visual evoked potential

    30 minutes

  • Best-corrected visual acuity

    5 minutes

  • Color vision

    5 minutes

Study Arms (2)

Shortwave diathermy and perceptual training

EXPERIMENTAL

The subjects in this group will receive shortwave diathermy 5 days per week for 4 weeks and perceptual training 5 days per week for 10 weeks after endoscopic optic nerve decompression surgery.

Procedure: Rehabilitation: shortwave diathermy and perceptual training

Nonrehabilitation

NO INTERVENTION

The subjects in the nonrehabilitation group will not only receive any rehabilitation therapy after endoscopic optic nerve decompression surgery.

Interventions

All subjects in the rehabilitation group received shortwave diathermy therapy 5 days per week for 4 weeks and perceptual training 5 days per week for 10 weeks.

Shortwave diathermy and perceptual training

Eligibility Criteria

Age3 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • The indications for endoscopic optic nerve decompression surgery included no improvement after intravenous treatment for 24 hours, no evidence of injury in the intracranial portion of the optic nerve, and the presence of bony fragments or hematoma compressing the optic nerve.
  • TON with best-corrected visual acuity equal to or more than 1.85 logMAR after surgery was considered as severe TON, and those patients managed with endoscopic optic nerve decompression surgery were recruited in this study.
  • Eligible criteria for the participants were as follows: (1) not receiving other physical therapy regimens aside from this intervention; (2) age 3 to 60 years old; (3) ability to execute simple verbal instructions; (4) not being delirious; (5) having stable vital signs and medical conditions.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Tang

Changsha, 410008, China

RECRUITING

MeSH Terms

Conditions

Optic Nerve Injuries

Condition Hierarchy (Ancestors)

Cranial Nerve InjuriesCranial Nerve DiseasesNervous System DiseasesOptic Nerve DiseasesCraniocerebral TraumaTrauma, Nervous SystemEye DiseasesWounds and Injuries

Study Officials

  • XiaoYe Wang

    Brain Hospital of Hunan Province, Hunan University of Chinese Medicine

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director

Study Record Dates

First Submitted

February 1, 2021

First Posted

December 1, 2021

Study Start

January 20, 2017

Primary Completion

December 31, 2022

Study Completion

December 31, 2022

Last Updated

December 1, 2021

Record last verified: 2021-11

Data Sharing

IPD Sharing
Will not share

Locations