Erste Erkenntnisse über die nasale Atemströmung bei Septumperforationen

Autor:	S. Grützenmacher, R. Saadi, G. Mlynski, C. Lang
Rok vydání:	2002
Předmět:	medicine.medical_specialty Nasal septum perforation business.industry Airflow Perforation (oil well) Laminar flow Anatomy Flow pattern medicine.disease Surgery medicine.anatomical_structure Otorhinolaryngology Flow velocity Nasal septum Medicine Streamlines streaklines and pathlines business
Zdroj:	Laryngo-Rhino-Otologie. 81:276-279
ISSN:	1438-8685 0935-8943
Popis:	Background: A nasal septum perforation often leads to considerable complaints like nasal obstruction, crusting, epistaxis or whistling. Up to now there is no certain knowledge about the airflow pattern in noses with septal perforations. Method: We performed fluid dynamic experiments on functional nasal models (so-called modified Mink boxes). We investigated the flow pattern in models with septal perforations, different in size and location and in combination with and without septal deviations. Results and Conclusions: We have found no essential influence of the location of perforation on the airflow pattern. With increasing size of perforation the streamlines bump toward the posterior border of the perforation, causing turbulence. The whistling during inspiration is based on the principle of a lip whistle. The required flow velocity for vibration of the air depends on the dimension of the perforation. For large perforations it is impossible to get the required high flow velocity to cause a whistle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::90e3a89f4ea2c4c46a6bb7bf49e284d7 https://doi.org/10.1055/s-2002-25318 Zobrazit plný text záznamu