Computer based cephalometric study of the pharyngeal airway after surgical correction of mandibular prognatism / Estudo cefalométrico computadorizado do espaço aéreo faríngeo de pacientes submetidos à cirurgia ortognática para correção de prognatismo mandibular
AUTOR(ES)
Eduardo Sanches Gonçales
DATA DE PUBLICAÇÃO
2006
RESUMO
Pharynx is a muscular organ with is sustained by craniofacial bones. It is divided into nasal, oral and hipopharynx, and can be considered as a tube that can be closed serving both respiratory and digestive systems, participating of breathing, swallowing and speech. Its anatomical morphology permits that factors such as obesity, muscular hipotony, and mandibular deficiency, among others, facilitate its obstruction, leading to the sleep apnea syndrome (OAS). The treatment consists of surgical mandibular advancement for the desobstruction of the pharynx, once this procedure increases pharyngeal dimensions. In this context, the determination of the site of the obstruction is essential for an adequate treatment, and conventional or digital cephalometries are useful tools for this diagnosis. If mandible advancement increases pharyngeal air space it is expected that mandible setback decreases such space. In order to evaluate cephalometric alterations of pharyngeal air space after orthognatic surgeries for the correction of mandibular prognatism, cephalometric analysis of 18 patients before and after surgical correction were performed using Dolphin Imaging 10.0 Program. The surgical technique consisted of bilateral mandibular sagital osteotomy associated to maxilla advancement and mentoplasty. Results did not reveal statistical differences for 142 the superior (naso), medium (oral), and inferior (hypopharynx) pharyngeal air spaces, leading to the conclusion that Dolphin Imaging 10.0 Program can be used for the analysis of the pharyngeal air space and that the surgical procedure seems not to interfere in the airway space.
ASSUNTO(S)
pharyngeal airway sleep apnea apnéia obstrutiva mandibular setback espaço aéreo faríngeo recuo mandibular
Documentos Relacionados
- Morphologic changes of the frontal and sphenoid sinuses at pharyngeal airway space after orthognathic surgery for class II correction
- Avaliação cefalométrica do espaço aéreo posterior em pacientes com oclusão Classe II submetidos à cirurgia ortognática
- Prognatismo mandibular : estudo cefalometrico em individuos adultos caucasoides
- Cephalometric evaluation of pharyngeal airway space changes in class III patients undergoing orthognathic surgery : retrospective study
- Estudo cefalométrico das alterações no perfil facial em pacientes Classe III dolicocefálicos submetidos à cirurgia ortognática bimaxilar