scholarly journals Exhaled air temperature in children with bronchopulmonary dysplasia

2010 ◽  
Vol 45 (12) ◽  
pp. 1240-1245 ◽  
Author(s):  
Silvia Carraro ◽  
Giorgio Piacentini ◽  
Marta Lusiani ◽  
Zeynep S. Uyan ◽  
Marco Filippone ◽  
...  
2009 ◽  
Vol 20 (2) ◽  
pp. 164-171 ◽  
Author(s):  
Massimo Pifferi ◽  
Vincenzo Ragazzo ◽  
Antonino Previti ◽  
Giovanni Pioggia ◽  
Marcello Ferro ◽  
...  

2006 ◽  
Vol 176 (6) ◽  
pp. 527-534 ◽  
Author(s):  
Sophia Engel ◽  
Raymond H. G. Klaassen ◽  
Marcel Klaassen ◽  
Herbert Biebach

2004 ◽  
Vol 114 (1) ◽  
pp. 202-204 ◽  
Author(s):  
Giorgio L Piacentini ◽  
Alessandro Bodini ◽  
Diego Peroni ◽  
Michela Ress ◽  
Silvia Costella ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Mehdi Khosravi ◽  
Ruei-Lung Lin ◽  
Ashish P. Maskey ◽  
Subodh Pandey ◽  
An-Hsuan Lin ◽  
...  

Extensive evidence indicates that several types of temperature-sensitive ion channels are abundantly expressed in the sensory nerves innervating airway mucosa. Indeed, airway temperature is known to play an important role in regulating respiratory functions. However, the actual airway mucosal temperature and its dynamic changes during the respiratory cycle have not been directly measured. In previous studies, airway tissue temperature was often estimated by indirect measurement of the peak exhaled breath temperature (PEBT). In view of the poor thermal conductivity of air, we believe that the airway tissue temperature cannot be accurately determined by the exhaled air temperature, and this study aimed to test this hypothesis. We applied a miniature rapid-response temperature probe to measure directly the mucosal temperatures of trachea, major, lobar, and segmental bronchi in eight human subjects during a bronchoscopy procedure. Unlike the air temperature in the airway lumen, the mucosal temperature in these airway segments remained relatively stable and did not exhibit the phasic changes synchronous with respiratory cycles. The airway mucosal temperature increased progressively from the extra-thoracic trachea (35.7 ± 0.2°C) toward the segmental bronchus (36.9 ± 0.2°C). Most importantly, the temperatures measured directly at the mucosa of all these airway segments were substantially higher than the PEBT (31.7 ± 0.8°C). The recent findings of a close association between an increased PEBT and airway tissue inflammation have revealed the implication and potential of incorporating the PEBT measurement in the future clinical diagnosis of airway inflammation. Therefore, it is imperative to recognize this distinct difference in temperature between airway mucosa and exhaled air.


Author(s):  
Владимир Самсонов ◽  
Vladimir Samsonov ◽  
Юлий Перельман ◽  
Yuliy Perelman ◽  
Элла Захарова ◽  
...  

The method for prediction of asthma in patients with polypous rhinosinusitis was developed. It consists of determination of the average mass molecules (AMM, optical density units), measurement of exhaled and inhaled air temperature (T exh, ºC), and (T inh, ºC), and determination of the temperature difference (ΔT, ºC) between the inhaled and exhaled air temperatures and with the help of the discriminant equation: D = +5.028 × T exh - 0.405×ΔT - 8.910 × AMM, where the discriminant function (D) boundary value is 152.16. At D greater than or equal to the discriminant function boundary value, the absence of asthma in patients with polypous rhinosinusitis is predicted; at D less than the discriminant function boundary value, the development of asthma is predicted.


2007 ◽  
Vol 37 (3) ◽  
pp. 415-419 ◽  
Author(s):  
G. L. Piacentini ◽  
D. Peroni ◽  
E. Crestani ◽  
F. Zardini ◽  
A. Bodini ◽  
...  
Keyword(s):  

1970 ◽  
Vol 10 (2) ◽  
pp. 151-158 ◽  
Author(s):  
David E. Murrish ◽  
Knut Schmidt-Nielsen

2002 ◽  
Vol 20 (1) ◽  
pp. 108-111 ◽  
Author(s):  
G.L. Piacentini ◽  
A. Bodini ◽  
L. Zerman ◽  
S. Costella ◽  
L. Zanolla ◽  
...  

2006 ◽  
Vol 42 (01) ◽  
pp. 53 ◽  
Author(s):  
Annette Majnemer ◽  
Patricia Riley ◽  
Michael Shevell ◽  
Rena Birnbaum ◽  
Harriet Greenstone ◽  
...  

2019 ◽  
Author(s):  
Lysbert Meijer‑Schaap ◽  
Anthony E. J. Dubois ◽  
Boudewijn J. Kollen ◽  
Jet  Tijmens‑van der Hulst ◽  
Bertine M. J. Flokstra‑de Blok ◽  
...  

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