The surface epithelium lining the nasal airways is a potential target for inhaled contaminants such as ozone, endotoxin, formaldehyde, tobacco smoke, and organic dusts. The epithelial response to injury may depend on the toxicant, the type of epithelium, the severity of the injury, and the presence of inflammatory cells and their secreted products. To study mechanisms of toxicant-induced epithe...

BACKGROUND AND OBJECTIVES Chondrocyte viability following laser irradiation and reshaping has not been established for human nasal septal cartilage. Knowledge of the relationship between thermal injury and laser dosimetry is needed in order to optimize septal laser cartilage reshaping. The objective of this study was to determine the depth and width of thermal injury in human septal cartilage f...

Nasal fractures are the most common of all facial skeletal injuries. Untreated, these fractures frequently lead to functional and aesthetic problems. Careful history and physical assessment are critical to determine the extent of injury and to determine proper management. Critical aspects of assessment are discussed, as is the role of imaging in management. The unique aspects of pediatric nasal...

Iatrogenic injuries of the frontal skull base commonly occur during endoscopic sinus surgery. In this paper, we present a rare case of cranial base injury after transnasal endotracheal intubation for dental surgery. A 61-year-old otherwise healthy man presented at the emergency department with headache, right leg weakness and watery nasal discharge on the left side. He underwent a dental surger...

The parasympathetic nerve which innervates the nasal mucosa is known to take a course along the facial nerve, geniculate ganglion, greater petrosal nerve and Vidian nerve as a preganglionic component. In the case of facial palsy with decreased lacrimation, it is proposed that the patients have a damage of the geniculate or suprageniculate lesion. This lesion is thought to cause parasympathetic,...

Background: Injury to the cavernous portion of the Internal Carotid Artery (ICA) during nasal endoscopic sinus surgery is a rare complication, which is associated with high rates of morbidity and mortality. ICA is more vulnerable to iatrogenic injury inside the sphenoid lateral wall when it runs in a more medial course which although is uncommon but a normal variant and when the ICA runs only i...

introduction: septal deviation is the chief cause of chronic nasal obstruction. in order to treat such cases, nasal septoplasty surgery is usually performed based on patient complaints and a surgeon's examination, both of which are subjective. this study aims at using the objective parameters of acoustic rhinometry and rhinomanometry to evaluate the effectiveness of septoplasty surgery.   ...