• forms
  • However, this operation can also cause sleep apnea if scar tissue forms and the airspace in the velopharynx is decreased. (wikipedia.org)
  • removal
  • In some cases this can lead to sleep apnea, which may be treated by removal of the uvula or part of it if necessary, an operation known as uvulopalatopharyngoplasty (commonly referred to as UPPP, or UP3). (wikipedia.org)