Home » Research & Medical Insights in Voice Surgery » Clinical Data & Long-Term Results
At Yoskarn Clinic in Bangkok, Thailand, every voice surgery is supported by a strong foundation of clinical data, outcome monitoring, and long-term follow-up studies. Under the leadership of Dr. Somyot Kunjak, who has over 40 years of ENT and phonosurgery experience, the clinic’s results demonstrate consistency, safety, and patient satisfaction across a wide range of voice procedures — from voice feminization and masculinization to hoarseness correction and aging voice rejuvenation.
All surgical and therapeutic interventions at Yoskarn Clinic are evaluated through structured clinical data collection and statistical analysis. This evidence-based approach helps refine surgical techniques and ensure predictable, natural results.
Key performance metrics include:
Acoustic and aerodynamic measurements — comparing pitch, range, and vocal intensity pre- and post-surgery
Patient-reported outcome measures (PROMs) — assessing satisfaction, comfort, and self-perception of voice
Voice Handicap Index (VHI) — documenting functional improvement in daily communication
Long-term follow-up data — tracking the stability and durability of surgical results over several years
Clinical data from Yoskarn Clinic consistently demonstrate significant improvement in vocal pitch, clarity, and resonance, with a high rate of patient satisfaction and minimal postoperative complications.
Long-term results are essential in evaluating the true success of any voice surgery. Yoskarn Clinic’s follow-up studies show that:
Voice Feminization (CTA / ACA) patients maintain pitch elevation and resonance for over 5–10 years
Voice Masculinization (Type III Thyroplasty) demonstrates stable pitch lowering with preserved vocal quality
Hoarseness and Aging Voice Corrections lead to improved strength and endurance in professional and everyday use
Laser and Endoscopic Procedures have minimal scarring and high tissue preservation rates
These findings are verified through stroboscopic imaging, acoustic monitoring, and regular patient interviews, forming one of the most comprehensive datasets in Asian phonosurgery.
Yoskarn Clinic’s medical data have contributed to international conferences and peer-reviewed journals, promoting safer and more precise surgical practices worldwide.
The clinic actively collaborates with voice researchers and ENT specialists to establish new standards for voice surgery success metrics and long-term outcome evaluation.
Over 40 years of specialized experience in ENT and voice surgery
Data-driven clinical excellence, validated by measurable long-term results
Advanced diagnostic technology, including videostroboscopy and acoustic analysis
Global reputation among professional voice users and transgender patients
Commitment to ongoing research and innovation in phonosurgical outcomes
At Yoskarn Clinic, your voice is treated not only as a physical function but as a lifelong expression of identity and confidence — supported by science, experience, and lasting results.
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