Dr. Ornouma Srivanishvipat


Ear, Nose, Throat DepartmentDr Ornouma
Yanhee International Hospital
454 Charansanitwong Road,
Bang-O, Bangplad
Bangkok 10700 Thailand


  • Voice Change Surgery
  • Snoring & Sleep Apnea
  • Sinus Surgery


Royal College of Otolaryngology of Thailand

Medical Education:

  • Doctor of Medicine, Ramathibodi Hospital, Mahidol University, Thailand, 1995
  • Diploma in Clinical Science, Mahidol University, Thailand, 1998

Professional Affiliations:

Yanhee International Hospital

International Training & Post-Graduate Courses

  • Certificate of Attendance, Advance Polysomnography and Scoring Course, 2010
  • International Conference on Oral and Maxillofacial Surgery, Shanghai, China, 2008
  • Asian Research in Rhinology, Thailand, 2008
  • Vocal Fold Augmentation by Medialization Thyroplasty and Arytenoid Adduction, Mahidol University, Thailand, 2008
  • World Congress of Bronchoesophagology, Tokyo, Japan, 2007

Specialty Training:

  • Fellowship in Laryngology (Voice Surgery), Portland, Oregon, USA, 2004
  • Fellowship in Otolaryngology, Head & Neck Surgery, Ramathibodi Hospital, Mahidol University, Thailand, 2002
  • Otolaryngology, Head & Neck Surgery, Ramathibodi Hospital, Mahidol University, Thailand, 2000


Voice Feminization Surgery

“The Human Voice Is The Voice Of The Soul”
Henry Wadsworth Longfellow
By: Maj Benice

Indeed, Mr. Longfellow has aptly stressed the significance of the human voice. Realizing this, we are fortunate enough to have with us, the only “voice surgeon” at Yanhee International Hospital, who has devoted many years of her youth in perfecting her skills on various ears, nose, and throat surgeries, and has taken a keen interest on the human voice and how it may be modified to satisfy the human desires and make the world a happier place to live in!

In an interview with voice surgery expert, Dr. Ornouma Srivanishvipat, M.D., she said that many of her SRS (Sex Re-assignment Surgery) patients have expressed to her that the voice change package should really come first, as an initial procedure for an SRS (Sex Re-assignment Surgery) before the rest of 2-3 stage procedure, as it is more affordable, and the gender change can be immediately felt by the person post-operatively, as soon as he starts to speak in his new voice.

Dr. Ornouma, an otorhinolaryngologist, and a Fellow in the College of Otolaryngology, Head and Neck Surgery in Thailand, a graduate of the College of Medicine in Mahidol University, who has completed her Fellowship in Laryngology at Portland Oregon, USA,  heads  the ENT (Ears, Nose, Throat) Department of Yanhee International Hospital, where she has been performing her specialty surgeries for 10 years now, 500 of which are voice change surgeries, 300 “anti- snore” surgeries, 200 sinus surgeries, and other surgeries involving the ears, nose, and throat.

She is the only “voice-change” expert surgeon at Yanhee International Hospital, and in the entire city of Bangkok at the moment.

Ninety five percent of her voice change surgeries on trans-gender patients were performed on MTF (male to female), and 5 % on FTM (female to male) patients.

She further adds that voice feminization is achieved better by surgical means than by the conservative hormone therapy alone, which only achieves only about a 10% success rate.

However, among FTM-SRS (female to male sex re-assignment surgery) patients, hormone therapy is able to achieve a more significant voice change, with a 70% success rate. This accounts for the reason why she has had more MTF than FTM patients who come for voice change surgeries.

The most common post-operative complications she has encountered are the following:

  1. Failure to achieve the “exact” voice that the patient wants to have (in 5% of cases). She comments that it is always best to make the patient understand fully the limitations of this surgery and be able to accept that the outcome may not exactly be what the patient “exactly” wants to achieve due to anatomical differences which may limit the success of the surgery. Further explanation will be needed if the complains are made post-operatively but the patients should be advised to wait for about 3 months, until full healing has taken place, and optimum function of the vocal cords has been achieved.
  2. Infection and hoarseness. Hoarseness of the voice is caused by some degree of infection: thus as soon as treated, is expected to resolve gradually.

During the 7th International Congress of the Federation of Facial Plastic Surgery Society (IFFPSS), held in Rome, Italy last May 9-12, 2012 entitled “Nose and Face World Rome”, Dr. Ornouma presented a research paper on the voice change surgeries (500 cases) that she performed during the past 10 years of her practice at Yanhee International Hospital, using the CTA (Crico-thyroid Approximation) technique, drawing the conclusion that CTA is the most convenient and effective technique in comparison to the other techniques used in performing voice change surgeries.

Her presentation drew much attention and praise among the attendees. She is currently working on the written report which she will be submitting soon enough, to the ATLAS, an International Journal of Otolaryngologists for further comment, discussion, and academic merits.

If this unique research is found to meet the standards set by this organization, it may even find itself entered in the Guinness Book of World Records.

Additional information