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Effect of Non-invasive Vagus Nerve Stimulation on Cognitive Functions in Diabetic Polyneuropathy Patients

Effect of Non-invasive Vagus Nerve Stimulation on Cognitive Functions in Diabetic Polyneuropathy Patients

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06048653
Enrollment
40
Registered
2023-09-21
Start date
2022-08-02
Completion date
2024-02-29
Last updated
2023-09-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetic Peripheral Neuropathy

Keywords

vagus nerve stimulation, cognitive functions

Brief summary

Diabetic peripheral neuropathy (DPN) occurs due to long standing hyperglycemia and associated metabolic derangements. Cognitive impairment is a common complication in diabetes mellitus. It is associated with a faster rate of cognitive decline.

Detailed description

This research aims to * determine the effect of non-invasive Vagus nerve stimulation on cognitive functions in diabetic peripheral neuropathy. * investigate the correlation between cognitive function and severity of diabetic neuropathy. * investigate the correlation between cognitive function and quality of life in diabetic peripheral neuropathy.

Interventions

OTHERA computer based cognitive rehabilitation program (Rehacom system)

Rehacom cognitive rehabilitation software will be used to treat the cognitive dysfunction * Patients will receive training for four weeks, two sessions per week. * Each patient will assume a comfortable sitting position on a chair in front of the screen. * A report will be generated at the end of the session. It will be used for follow up. * Session duration will range from 45 to 60 min. including rest period.

DEVICEVagus nerve stimulation

stimulation will be applied on cymba conchae of left external ear. A stimulation of frequency of 20 Hz, pulse width of 200 - 300 Ms and intensity of 0.5 mA. The stimulation will be on for 30 s and off for 48 s.The stimulus duration will range from 20 to 40 min.

Sponsors

heba ahmed khalifa
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Intervention model description

The control group (GI) will receive a computer based cognitive rehabilitation program (Rehacom system); and the study group (GII) will receive the same program as (GI) in addition to Vagus nerve stimulation.

Eligibility

Sex/Gender
FEMALE
Age
40 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* patients with diabetic polyneuropathy * Female patients. * age ranges from 40 to 55 years old. * Duration of diabetic illness started since at least three years. * Patients with mild to moderate neuropathy according to Toronto clinical neuropathy score * Patients with cognitive function ranges from 24 - 15 score according to Mini mental state examination * Patients with HbA1c ranges from seven to nine score. * Ambulant patients with or without walking aids. * Medically and psychologically stable patients without cardiac problems, confirmed by Electro Cardiogram (ECG). * able to understand instructions.

Exclusion criteria

* Type I diabetes mellitus. * Severe visual, verbal or acoustic impairments. * Sever cognitive dysfunctions or that caused by other cause rather than diabetes mellitus. * Polyneuropathy caused by other cause rather than diabetes mellitus. * Other neurological problem as stroke. * Cardiovascular problems. * Metallic implants * Illiterate patients. * Uncooperative patients.

Design outcomes

Primary

MeasureTime frameDescription
Attention/ concentration scoreat baselineRehacom will be used to assess score of attention/ concentration domain of cognitive function
working memory scoreat baselineRehacom will be used to assess score of working memory domain of cognitive function
Executive function scoreat baselineRehacom will be used to assess score of executive function domain of cognitive function
Executive functionpost intervention (after one month)Rehacom will be used to assess score of executive function domain of cognitive function

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026