title: Disorders of the nasal valve area.
abstract: The nasal valve area is not a singular structure, but a complex three-dimensional construct consisting of several morphological structures. From the physiologic point of view, it is the place of maximum nasal flow resistance ("flow limiting segment"). Therefore, according to Poiseuille's law, even minor constrictions of this area result in a clinically relevant impairment of nasal breathing for the patient. This narrow passage, also called "ostium internum nasi", is formed by the mobile lateral nasal wall, the anterior septum with the swell body, the head of the inferior turbinate and the osseous piriform aperture. Within the framework of aetiology, static and dynamic disorders of the nasal valve area have to be distinguished since they result in different therapeutic measures. In the context of diagnosis, the exploration of the case history for assessing the patient's extent of suffering and the clinical examination are very important. In addition to the presentation of the basics of disorders of the nasal valves, this paper focuses on the treatment of dynamic disorders that mainly constitute the more important therapeutic issue. In this context, we distinguish between stabilisation techniques through grafts or implants and stabilising suture techniques. Following a thorough analysis, the correction of static nasal valve disorders requires various plastic-reconstructive measures using transposition grafting and skin or composite grafts.
authors.affiliation: Department of Otorhinolaryngology of the Saarland University, Homburg/Saar, Germany.
authors.forename: Marc Boris
authors.initials: MB
authors.lastname: Bloching
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