Low Laser Therapy on Facial Motor Functions Function and Synkinesis in Patients With Bell's Palsy

Riphah International University

Status: Enrolling

Conditions: Bell's Palsy

Treatments: Other: Low level laser therapy and conventional therapy; Procedure: Conventional therapy

Study type: Interventional

Funder types: Other

Identifiers

NCT05707091

REC/RCR&AHS/22/0216

Details and patient eligibility

About

To determine the effects of low-level laser therapy on facial motor functions and synkinesis in patients with bell's palsy

Full description

A randomised controlled trial tested low-level laser therapy (LLLT) for bell's palsy. Lahore's Ittefaq Hospital selected 32 bell's palsy patients for the research. The Facial Disability Index (FDI), House-Brackmann Scale (HBS), and Sunnybrook Facial Grading System were used to collect data over ten months (SFG). LLLT and conventional therapy were randomly assigned to two groups. SPSS 25 compared pre- and post-treatment values of the two groups.

Enrollment: 32 estimated patients

Sex: All

Ages: 30 to 60 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Male female diagnosed with idiopathic Bell's palsy by physician
• age 30-60years
• Bell's palsy in patients having known history of hypertension
• Bell's palsy in patients having known history of diabetes

Exclusion criteria

• Participants with a middle ear infection
• parotid gland tumor
• malignant otitis external
• Tumors in the base of the lateral skull
• upper motor neuron facial palsy
• segmental muscle weakness
• and recurrent episodes of facial paralysis, polyneuropathies

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

---

32 participants in 2 patient groups

Low level laser therapy

Experimental group

Description:

Patients assigned to experimental group received low level laser therapy and conventional therapy. Treatment frequency was five sessions/week for 4 weeks. . For laser therapy, Omega laser system used with infrared probes of 830 nm wavelength and 100 mW output power, average energy density of 10 J/cm2 , frequency of 1 KHz, and a duty cycle of 80 % in one group. In all cases, the laser was in direct contact with the superficial roots of the facial nerve on the affected side. And was applied for 2 min and 5 s per point for 8 points.

Treatment:

Other: Low level laser therapy and conventional therapy

Conventional therapy

Experimental group

Description:

Group B was treated with conventional therapy. The interrupted galvanic electrical impulses with the duration of 3-30 milliseconds, the tolerable intensity was applied over the motor points of each facial muscle. A total of 30-60 electrical twitch induced muscle contractions will be maintained for each muscle. The facial muscles exercise training with mirror-visual feedback was progressed to resisted exercises by self and/or therapist-assistance. All exercises were demonstrated to participants by the therapist's efforts and instructed the participants to continue the exercises twice a day for 10-15 minutes. A pictorial leaflet of facial expressions exercises with appropriate instructions to perform exercises. Treatment frequency was five sessions/week for 4 weeks.

Treatment:

Procedure: Conventional therapy