Effect of Functional Endoscopic Sinus Surgery to the Flow Behavior in Nasal during Resting Breathing Condition

Abstract

Functional endoscopic sinus surgery is a surgery to remove uncinate process in order to restore sufficient sinusventilation and drainagein nasal. However, there were a few cases withside effects such as facial pain, reduction in sense of smell and sinusitis reoccurrence of infection. In this study, the effect of uncinate process removal is investigated. Images ofthe model were done through computational technique and then the flow was simulated to predict the effect of the removal. Inhalation processes with resting breathing conditionwere modeled. The results show that smooth flow was observed at nasalarea which indicates successful surgical process.However for post FESS model the result shows that the possibilities of sinusitis reoccurrence of infection were high. Finally, velocity profile in the olfactory area show non-favorable flow condition for effective smell senses.