Einfluss von Gesichtskältemasken auf die Klimatisierungsfunktion der Nase
Auch gedruckt in der BibliothekW: W-H 12.932
Ressourcen- / MedientypDissertation, Text
Datum der Freischaltung2012-06-26
OBJECTIVES/HYPOTHESIS: Different climatic changes have an influence on the function of intranasal air conditioning (heating and humidifying the air), which aims to ensure an optimal pulmonary gas exchange. Whether a short-term cooling with a facial mask can cause measurable changes in the climate control feature of the "inner" nose, should be examined in this study. Through the trigeminal coupling of the facial skin with the nasal mucosa, changes were expected. The aim of the study was to compare intranasal heating and humidification of respiratory air before and after wearing a facial cooling mask. These changes were applied by the temperature and humidity measurements, which is established at the University of Ulm. Additionally, rhinomanometrical and rhinometrical data were examined. METHODS: Fifty-five subjects (median age 36 years; range 21 - 77) were included in the study. Skin temperature, in vivo nasal air temperature and humidity as well as nasal mucosal temperature values were simultaneously measured at defined intranasal sites. Active anterior rhinomanometry and acoustic rhinometry also were performed in every subject. RESULTS: After the cold mask, there was a significant decrease in facial skin temperature. The end-inspiratory air temperature did not change compared to the values after the cooling, whereas the humidity values and the mucosal temperature increased significantly (p < 0.05). The volume of the anterior part (VOL1) and the cross-sectional areas (MCA 1 and 2) of the acoustic rhinometry in nasal entrance were higher after wearing the mask cold (p < 0.05). However, there was no significant difference between the second volume value VOL2 and rhinomanometry comparing the values before and after facial cooling (p > 0.05). CONCLUSIONS: The nasal mucosa is very sensitive to a cold stimulation of the facial skin possibly causing a trigeminal reflex. This shows once more the importance of the conditioning capacity of the nose even under extreme conditions.
Freie SchlagwörterFacial cooling
Nasal air conditioning