[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100616068":3},{"organization":4,"outcomesModule":7,"designInfo":19,"detailedDescription":29,"studyPopulation":18,"armGroups":30,"interventions":43,"overallOfficials":53,"centralContacts":58,"locations":64,"responsibleParty":82,"collaborators":18,"id":84,"slug":18,"hasResults":85,"nctId":86,"briefTitle":87,"officialTitle":88,"acronym":18,"eligibilityCriteria":89,"healthyVolunteers":85,"sex":90,"minAge":91,"maxAge":92,"enrollmentInfo":93,"targetDuration":18,"studyType":96,"phases":97,"briefSummary":99,"conditions":100,"keywords":102,"overallStatus":67,"whyStopped":18,"lastUpdateSubmitDate":106,"lastUpdatePostDateStruct":107,"startDateStruct":110,"completionDateStruct":112,"leadSponsor":114,"locationsCount":115},{"fullName":5,"class":6},"Beni-Suef University","OTHER",{"primaryOutcomes":8,"secondaryOutcomes":13,"otherOutcomes":18},[9],{"measure":10,"description":11,"timeFrame":12},"Shimmer (Local, dB)","Shimmer (local), expressed in decibels (dB), representing cycle-to-cycle amplitude variation, will be obtained from sustained vowel \u002Fa\u002F using PRAAT software.","From enrollment, including baseline voice assessment, through surgery and postoperative follow-up assessments at 1 month and 3 months",[14],{"measure":15,"description":16,"timeFrame":17},"Harmonic to noise Ratio","Harmonic to Noise Ratio, will be obtained from sustained vowel \u002Fa\u002F using PRAAT software.\n\nUnit of Measure:\n\ndB","Baseline (preoperative), 1 month postoperative, and 3 months postoperative",null,{"allocation":20,"interventionModel":21,"interventionModelDescription":22,"primaryPurpose":23,"observationalModel":18,"timePerspective":18,"maskingInfo":24},"RANDOMIZED","PARALLEL","The surgery will be performed under general anesthesia. All patients will undergo microlaryngoscopic removal of the vocal fold lesions under microscopic or endoscopic guidance using a rigid laryngoscope, and hemostasis will be achieved. For patients in the PRP group, 0.25-1.5 mL of PRP will be injected into the superficial lamina propria (Reinke's space), just lateral to the excision site, using a Chiba needle. This site is chosen to promote tissue regeneration without damaging the vocal ligament or muscle, while slightly medializing the vocal fold for better glottic closure. Care will be taken to avoid the free edge of the vocal fold, as direct injection there can cause scarring, stiffness, or worsening of voice quality. The injection volume will typically range from 0.25 to 1.5 mL depending on the size of the lesion and the vocal fold.","TREATMENT",{"masking":25,"maskingDescription":26,"whoMasked":27},"SINGLE","Outcome assessors and voice analysts were masked to treatment allocation to avoid assessment bias when evaluating voice outcomes (GRBAS, acoustic analysis). Patient-reported VFI forms were collected using standardized procedures.",[28],"OUTCOMES_ASSESSOR","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.\n\nThis 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 during surgery with those receiving conventional postoperative management alone.\n\nAdult 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.\n\nVoice 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.\n\nAll participants will undergo routine preoperative evaluation and provide written informed consent in accordance with institutional and ethical guidelines.\n\nThis study aims to determine whether PRP injection provides additional benefit in voice recovery following microlaryngosurgery for benign vocal fold lesions.",[31,37],{"label":32,"type":33,"description":34,"interventionNames":35},"PRP Group","EXPERIMENTAL","Patients in this group will undergo microlaryngoscopic removal of benign vocal fold lesions followed by an injection 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.",[36],"Procedure: Platelet-Rich Plasma (PRP) Injection after Microlaryngoscopic Surgery for PRP Group",{"label":38,"type":39,"description":40,"interventionNames":41},"Conventional Surgery Group","ACTIVE_COMPARATOR","Control (Conventional Surgery) Group\n\nRole: Control group for comparison.\n\nDescription: 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.",[42],"Procedure: Conventional Microlaryngoscopic Surgery (Active Comparator)",[44,49],{"type":45,"name":46,"description":47,"armGroupLabels":48,"otherNames":18},"PROCEDURE","Platelet-Rich Plasma (PRP) Injection after Microlaryngoscopic Surgery for PRP Group","Platelet-Rich Plasma (PRP) Injection Patients in this group will undergo microlaryngoscopic removal of benign vocal fold lesions under general anesthesia. Following surgery, autologous PRP will be injected into the superficial lamina propria (Reinke's space), just lateral to the excision site, using a Chiba needle. The injection aims to promote tissue regeneration, improve postoperative healing, and enhance vocal quality. Care is taken to avoid the free edge of the vocal fold to minimize scarring or stiffness. The PRP is prepared fresh from the patient's blood on the day of injection.",[32],{"type":45,"name":50,"description":51,"armGroupLabels":52,"otherNames":18},"Conventional Microlaryngoscopic Surgery (Active Comparator)","Patients in this group will undergo microlaryngoscopic removal of benign vocal fold lesions under general anesthesia without PRP injection. Standard postoperative care is provided. This group serves as a comparator to evaluate the additional effect of PRP on voice recovery.",[38],[54],{"name":55,"affiliation":56,"role":57},"Shaimaa Ahmed Bakia","Lecturer of Phoniatrics","PRINCIPAL_INVESTIGATOR",[59],{"name":60,"role":61,"phone":62,"phoneExt":18,"email":63},"Shaimaa Bakia, Lecturer","CONTACT","+201145335408","shaimaa.saleh@med.bsu.edu.eg",[65],{"facility":66,"status":67,"city":68,"state":69,"zip":70,"country":69,"countryCode":71,"cosmosGeoPoint":72,"geoPoint":77,"contacts":78},"Beni Suef Univesity hospital","RECRUITING","Banī Suwayf","Egypt","3220001","EG",{"type":73,"coordinates":74},"Point",[75,76],31.09785,29.07441,{"lat":76,"lon":75},[79],{"name":80,"role":61,"phone":81,"phoneExt":18,"email":63},"Shaimaa Bakia","01145335408",{"type":57,"investigatorFullName":83,"investigatorTitle":56,"investigatorAffiliation":5,"oldNameTitle":18,"oldOrganization":18},"Shaimaa A Bakia","100616068",false,"NCT07300800","Effect of PRP Injection on Voice Recovery After Benign Vocal Fold Surgery","Evaluating The Efficacy of Platelet Rich Plasma on Voice Outcomes Following Surgical Removal of Benign Vocal Fold Lesions","* Inclusion Criteria:\n\n  \\* Adults aged 18 to 50 years\n\n  \\* Diagnosis of a benign vocal fold lesion, including: Vocal fold polyps Vocal fold cysts Vocal fold nodules\n\n  \\* Failure to respond to conservative management, including one or more of the following: Voice rest, voice therapy\n* Exclusion Criteria:\n\n  * Age younger than 18 years or above 50\n  * Medically unfit for surgery","ALL","18 Years","50 Years",{"count":94,"type":95},64,"ESTIMATED","INTERVENTIONAL",[98],"NA","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:\n\nDoes postoperative PRP injection improve vocal quality compared to conventional surgery alone?\n\nDoes PRP injection reduce vocal fatigue and improve patients' voice-related quality of life?\n\nResearchers will compare 32 patients receiving PRP injections after surgical removal of lesions (intraoperative injection) to 32 patients undergoing conventional surgery without PRP to see if PRP enhances recovery and voice function.\n\nParticipants will:\n\nUndergo microlaryngosurgery to remove benign vocal fold lesions.\n\nReceive a PRP injection to the operated vocal fold and standard postoperative care.\n\nOr Standard postoperative care only.\n\nComplete voice assessments before surgery and at 1 and 3 months after surgery, including:\n\nAuditory perceptual evaluation (GRBAS scale) Videostroboscopy Acoustic and aerodynamic voice analysis Vocal Fatigue Index (VFI)\n\nAll participants will provide written consent and undergo standard preoperative assessments including medical history, ENT examination, laboratory tests, ECG, and anesthesia evaluation.",[101],"Benign Vocal Fold Lesions",[103,104,105],"vocal fold polyp","vocal fold nodules","vocal fold cyst","2026-05-29",{"date":108,"type":109},"2026-06-01","ACTUAL",{"date":111,"type":109},"2025-03-04",{"date":113,"type":95},"2026-07-30",{"name":5,"class":6},1]