The procedure, known as radiofrequency tissue volume reduction (RFTVR) or somnoplasty, is minimally invasive, using a low-intensity radiofrequency signal to remove part of the soft palate with only slight injury to surrounding tissue. The technique has already proved useful in treating other problems due to overgrowth of tissue, such as benign prostate enlargement.
To treat snoring, RFTVR is used to remove part of the soft palate, and causes some local scarring. The scarring acts to stiffen and shorten the soft palate, the divide between the nasal cavity and the mouth, reducing its tendency to vibrate, a common cause of snoring.
Researchers at Sir Charles Gairdner Hospital in Perth, Australia, claim that this procedure has fewer side effects than conventional surgery. In addition, it is well tolerated and is performed under local anesthesia with only mild postoperative discomfort reported. “It is possible (and reasonable) for most patients to return to work the same day that the procedure is performed,” researchers say.
A minor side effect experienced in only 5% of cases is a small ulcer that can occur when the radiofrequency energy has been placed too superficially and breaks through to the surface. They heal quickly, within a few days, and the associated discomfort is small, according to researchers.
But this approach is not effective in all patients, researchers noted. This is because the site of the problem in patients with snoring trouble does not always involve the upper roof of the mouth, but can also be seen as a result of the collapsing of airways in the back of the throat. In this case, the more conventional surgical methods are more effective, he noted.
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