Does maxillary balloon sinuplasty cause voice change?

Voice change: No. How did you have the procedure done? were you for some reason placed under general endotracheal anesthesia? was your voice very nasal before the procedure? did you have more nasal obstruction removed at the same time such as hypertrophied turbinates, septal deviation or polyps? balloon sinuplasty alone will not effect voice.

Voice change: unless you get a complication Kanu voice change would be temporary