Close monitoring of the vocal cords during thyroid removal surgery benefits people who use their voice to make a living, according to a new study.
Researchers assessed a new approach on 30 voice professionals – including opera singers, Motown recording artists, a TV weather forecaster and rabbi cantors – who had all or part of the thyroid gland removed surgically (thyroidectomy).
This type of surgery can lead to vocal cord problems, said the authors of the study. It was scheduled for presentation at the annual meeting of the American Association of Clinical Endocrinologists in Las Vegas.
"We do know that thyroid surgery is associated with nerve injury, vocal cord paralysis or nerve paralysis that can occur in up to 10 %of thyroidectomies and can lead to voice loss and difficulty swallowing, so these are very, very important complications to avoid," Dr Gregory Randolph, of Massachusetts Eye and Ear Infirmary, said in an association news release.
Loss of career
"These issues are magnified when you're dealing with a patient where such complications would not only involve loss of voice, but loss of career," added Randolph, director of general otolaryngology and the division of thyroid and parathyroid surgery at the hospital.
The patients in the study had their vocal cords closely monitored during thyroid surgery, and all them had vocal cord function after the surgery.
Monitoring including fitting an endotrachial tube – which is used to help patients breathe while under general anaesthesia – with electrodes that provided real-time data about the electrical activity of the vocal cords and nerves.
It's also important for doctors to visually examine the back of the throat before and after surgery, Randolph said.
Research presented at meetings is considered preliminary until published in a peer-reviewed medical journal.
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