Evaluating The Efficacy of Platelet Rich Plasma on Voice Outcomes Following Surgical Removal of Benign Vocal Fold Lesions
Overview
- Phase
- Not Applicable
- Status
- Recruiting
- Sponsor
- Beni-Suef University
- Enrollment
- 64
- Locations
- 1
- Primary Endpoint
- Shimmer (Local, dB)
Overview
Brief Summary
The goal of this clinical trial is to evaluate whether platelet-rich plasma (PRP) injections can improve voice outcomes after microlaryngosurgery in patients with benign vocal fold lesions. The main questions it aims to answer are:
Does postoperative PRP injection improve vocal quality compared to conventional surgery alone?
Does PRP injection reduce vocal fatigue and improve patients' voice-related quality of life?
Researchers will compare 32 patients receiving PRP injections after surgery to 32 patients undergoing conventional surgery without PRP to see if PRP enhances recovery and voice function.
Participants will:
Undergo microlaryngosurgery to remove benign vocal fold lesions.
Receive either a PRP injection to the operated vocal fold or standard postoperative care.
Complete voice assessments before surgery and at 1 and 3 months after surgery, including:
Auditory perceptual evaluation (GRBAS scale) Videostroboscopy Acoustic and aerodynamic voice analysis Vocal Fatigue Index (VFI)
All participants will provide written consent and undergo standard preoperative assessments including medical history, ENT examination, laboratory tests, ECG, and anesthesia evaluation.
Detailed Description
Benign vocal fold lesions are commonly treated with microlaryngosurgery when conservative management fails; however, postoperative voice recovery may be variable, and some patients experience persistent dysphonia or vocal fatigue. Platelet-rich plasma (PRP) has been proposed as a biologic adjunct that may enhance tissue healing through its regenerative and anti-inflammatory properties.
This clinical trial evaluates the effect of postoperative PRP injection as an adjunct to microlaryngosurgery for benign vocal fold lesions. The study compares voice recovery in patients receiving PRP injection following surgery with those receiving conventional postoperative management alone.
Adult patients undergoing microlaryngosurgery for benign vocal fold lesions will be enrolled and allocated to one of two study groups: a PRP injection group or a conventional treatment group. All participants will undergo standard surgical management, with the intervention group receiving an additional PRP injection to the operated vocal fold.
Voice outcomes will be assessed longitudinally at predefined postoperative intervals using objective, perceptual, and patient-reported measures. These assessments are intended to evaluate postoperative voice quality, vocal function, and patient-perceived vocal fatigue.
All participants will undergo routine preoperative evaluation and provide written informed consent in accordance with institutional and ethical guidelines.
This study aims to determine whether PRP injection provides additional benefit in voice recovery following microlaryngosurgery for benign vocal fold lesions.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Parallel
- Primary Purpose
- Treatment
- Masking
- Single (Outcomes Assessor)
Masking Description
Outcome Assessors / Voice Analysts: masked to group assignment to avoid assessment bias when evaluating voice outcomes (GRBAS, VFI, acoustic analysis).
Eligibility Criteria
- Ages
- 18 Years to 50 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Inclusion Criteria:
- •\* Adults aged 18 to 50 years
- •\* Diagnosis of a benign vocal fold lesion, including: Vocal fold polyps Vocal fold cysts Vocal fold nodules Vocal fold atrophy Vocal fold sulcus Vocal fold scar
- •\* Failure to respond to conservative management, including one or more of the following: Voice rest, voice therapy
Exclusion Criteria
- •Age younger than 18 years or above 50
- •Medically unfit for surgery
Arms & Interventions
PRP Group
Patients in this group will undergo microlaryngoscopic removal of benign vocal fold lesions followed by an injection of 1.5 mL of platelet-rich plasma (PRP) into the superficial lamina propria (Reinke's space) just lateral to the excision site. This intervention aims to promote tissue regeneration, improve vocal fold healing, and enhance postoperative voice outcomes.
Intervention: Platelet-Rich Plasma (PRP) Injection after Microlaryngoscopic Surgery for PRP Group (Procedure)
Conventional Surgery Group
Control (Conventional Surgery) Group
Role: Control group for comparison.
Description: Patients in this group will undergo microlaryngoscopic removal of benign vocal fold lesions without PRP injection. Standard postoperative care will be provided. This arm serves as the baseline to assess the additional effect of PRP on voice recovery and healing.
Intervention: Conventional Microlaryngoscopic Surgery (Active Comparator) (Procedure)
Outcomes
Primary Outcomes
Shimmer (Local, dB)
Time Frame: From enrollment, including baseline voice assessment, through surgery and postoperative follow-up assessments at 1 month and 3 months
Shimmer (local), expressed in decibels (dB), representing cycle-to-cycle amplitude variation, will be obtained from sustained vowel /a/ using PRAAT software.
Secondary Outcomes
- Harmonic to noise Ratio(Baseline (preoperative), 1 month postoperative, and 3 months postoperative)
- Mean Noise-to-Harmonics Ratio (NHR)(Baseline (preoperative), 1 month postoperative, and 3 months postoperative)
Investigators
Shaimaa A Bakia
Lecturer of Phoniatrics
Beni-Suef University