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Hyperbaric Oxygen Therapy Versus High Power Laser for Diabetic Neuropathy (HBOT-HPLT-DPN)

25 september 2026 uppdaterad av: Mostafa Mahmoud Mohamed Youssef Khalifa, Cairo University

Hyperbaric Oxygen Therapy Versus High Power Laser Therapy On Sensorimotor Functions In Patients With Diabetic Peripheral Neuropathy

The purpose of this study is to compare the clinical effects of Hyperbaric Oxygen Therapy (HBOT) versus High-Intensity Laser Therapy (HPLT) on sensorimotor functions and nerve conduction in patients suffering from painful diabetic peripheral neuropathy.

Participants are divided into three equal groups. The first group receives a traditional physiotherapy program focused on ankle and foot exercises. The second group receives hyperbaric oxygen therapy sessions in addition to the traditional program. The third group receives high-power MLS laser therapy alongside the traditional program. Investigators look at whether either advanced intervention shows superiority in improving nerve functionality and reducing neuropathic pain.

Studieöversikt

Detaljerad beskrivning

Diabetic peripheral neuropathy (DPN) is a major microvascular complication of diabetes leading to progressive nerve damage and neuropathic pain. This randomized controlled trial evaluates and compares the efficacy of two non-pharmacological interventions: Hyperbaric Oxygen Therapy (HBOT) and High-Intensity Laser Therapy (HPLT).

A total of 66 medically controlled patients with painful diabetic neuropathy are randomly assigned into three equal parallel groups (22 patients per group):

  • Control Group (A): Receives a traditional physiotherapy program including foot and ankle ROM exercises, strengthening, and functional walking training for 5 sessions per week for 3 weeks.
  • Study Group (B): Receives Hyperbaric Oxygen Therapy (100% oxygen at 2.5 ATA for 60 minutes, totaling 90 minutes per session) for 15 sessions over 3 weeks, combined with the traditional physiotherapy program.
  • Study Group (C): Receives High-Power Laser Therapy using a Multiwave Locked System (MLS) laser device (1500 Hz frequency) applied every other day for 9 sessions over 3 weeks, combined with the traditional physiotherapy program.

Assessments are conducted before and after the 3-week treatment period using objective Nerve Conduction Studies (NCS) for the sural and common peroneal nerves, and subjective screening via the Arabic Michigan Neuropathy Screening Instrument (MNSI) score.

Studietyp

Interventionell

Inskrivning (Faktisk)

66

Fas

  • Inte tillämpbar

Kontakter och platser

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Studieorter

    • Cairo Governorate
      • Cairo, Cairo Governorate, Egypten, 11771
        • Kobri El Koba Military Hospital

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

45 år till 60 år (Vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  • Patients diagnosed with type 2 diabetes mellitus for more than 5 years.
  • Presence of painful diabetic peripheral neuropathy lasting for more than 6 months.
  • Presence of sensory abnormalities, burning pain, and impaired nerve conduction velocity in the lower extremities.
  • Medically controlled glycemic status.
  • Sufficient cognitive abilities with a Mini-Mental State Examination (MMSE) score greater than 24.
  • Fit for hyperbaric pressure therapy with a cardiac ejection fraction (CEF) equal to or greater than 50% and blood pressure equal to or less than 150/90 mmHg.

Exclusion Criteria:

  • Peripheral neuropathy resulting from causes other than diabetes (e.g., vitamin B12 deficiency, alcohol abuse, or trauma).
  • Severe vascular insufficiency in the lower limbs.
  • Uncontrolled medical conditions such as tumors or thyroid dysfunction.
  • Pregnancy.
  • Presence of metallic implantations or cardiac pacemakers.
  • Severe visual, auditory, or cognitive impairment (MMSE score less than 24).
  • Chronic obstructive pulmonary disease (COPD) or other contraindications to hyperbaric oxygen therapy.
  • History of other neurological diseases (e.g., stroke or multiple sclerosis).

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Aktiv komparator: Conventional Physiotherapy

Foot and ankle range of motion (ROM) exercises, strengthening exercises, functional exercises, and walking training (5 sessions per week for 3 weeks).

Foot and ankle range of motion (ROM) exercises, strengthening exercises, functional exercises, and walking training (5 sessions per week for 3 weeks)

Experimentell: Hyperbaric Oxygen Therapy (HBOT)

Conventional physiotherapy program plus HBOT sessions (100% oxygen at 2.5 ATA for 60 minutes, with 15 minutes gradual compression and 15 minutes decompression, totaling 90 minutes per session). 15 sessions over 3 weeks.

100% oxygen inhalation at 2.5 ATA pressure for 60 minutes inside a hyperbaric chamber.

Andra namn:
  • HPOT
Experimentell: High-Power Laser Therapy (HPLT)

Conventional physiotherapy program plus HPLT (MLS laser, M6). Applied every other day for 9 sessions over 3 weeks. Includes a remote foot scan followed by contact application on 7 specific lower extremity areas.

MLS laser (M6 device) at 1500 Hz frequency, applied every other day for 9 sessions over 3 weeks. Includes a remote foot scan followed by contact application on 7 specific lower extremity areas.

Andra namn:
  • HPLT

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change in Michigan Neuropathy Screening Instrument (MNSI) score
Tidsram: Baseline and 3 weeks post-treatment

The Michigan Neuropathy Screening Instrument (MNSI) questionnaire was used to assess symptoms of diabetic peripheral neuropathy. Abnormal responses were summed to obtain the total score. The questionnaire score ranges from 0 to 13, with higher scores indicating greater neuropathic symptom burden.

Baseline and 3 weeks post-treatment
Change in right sural nerve distal sensory latency
Tidsram: Baseline and after 3 weeks of treatment

Right sural nerve distal sensory latency was assessed using nerve conduction studies and measured in milliseconds (ms).

Baseline and after 3 weeks of treatment
Change in left sural nerve distal sensory latency
Tidsram: Baseline and after 3 weeks of treatment

Left sural nerve distal sensory latency was assessed using nerve conduction studies and measured in milliseconds (ms).

Baseline and after 3 weeks of treatment
Change in right sural nerve sensory amplitude
Tidsram: Baseline and after 3 weeks of treatment

Right sural nerve sensory amplitude was assessed using nerve conduction studies and measured in microvolts (µV).

Baseline and after 3 weeks of treatment
Change in left sural nerve sensory amplitude
Tidsram: Baseline and after 3 weeks of treatment

Left sural nerve sensory amplitude was assessed using nerve conduction studies and measured in microvolts (µV).

Baseline and after 3 weeks of treatment
Change in right sural nerve conduction velocity
Tidsram: Baseline and after 3 weeks of treatment

Right sural nerve conduction velocity was assessed using nerve conduction studies and measured in meters per second (m/s).

Baseline and after 3 weeks of treatment
Change in left sural nerve conduction velocity
Tidsram: Baseline and after 3 weeks of treatment

Left sural nerve conduction velocity was assessed using nerve conduction studies and measured in meters per second (m/s).

Baseline and after 3 weeks of treatment
Change in right peroneal nerve distal motor latency
Tidsram: Baseline and after 3 weeks of treatment

Right peroneal nerve distal motor latency was assessed using nerve conduction studies and measured in milliseconds (ms).

Baseline and after 3 weeks of treatment
Change in left peroneal nerve distal motor latency
Tidsram: Baseline and after 3 weeks of treatment

Left peroneal nerve distal motor latency was assessed using nerve conduction studies and measured in milliseconds (ms).

Baseline and after 3 weeks of treatment
Change in right peroneal nerve motor amplitude
Tidsram: Baseline and after 3 weeks of treatment

Right peroneal nerve motor amplitude was assessed using nerve conduction studies and measured in millivolts (mV).

Baseline and after 3 weeks of treatment
Change in left peroneal nerve motor amplitude
Tidsram: Baseline and after 3 weeks of treatment

Left peroneal nerve motor amplitude was assessed using nerve conduction studies and measured in millivolts (mV).

Baseline and after 3 weeks of treatment
Change in right peroneal nerve motor conduction velocity
Tidsram: Baseline and after 3 weeks of treatment

Right peroneal nerve motor conduction velocity was assessed using nerve conduction studies and measured in meters per second (m/s).

Baseline and after 3 weeks of treatment
Change in left peroneal nerve motor conduction velocit
Tidsram: Baseline and after 3 weeks of treatment

Left peroneal nerve motor conduction velocity was assessed using nerve conduction studies and measured in meters per second (m/s).

Baseline and after 3 weeks of treatment

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Studieavstämningsdatum

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Studera stora datum

Studiestart (Faktisk)

1 juli 2024

Primärt slutförande (Faktisk)

6 juli 2025

Avslutad studie (Faktisk)

6 juli 2025

Studieregistreringsdatum

Först inskickad

31 augusti 2026

Först inskickad som uppfyllde QC-kriterierna

25 september 2026

Första postat (Faktisk)

30 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

30 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

25 september 2026

Senast verifierad

1 september 2026

Mer information

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IPD-planbeskrivning

Individual participant data will not be shared outside the research team to maintain patient privacy and data confidentiality in accordance with institutional guidelines.

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