wersja polska  
Mediton - Publishing House
Start page  Journals  Books  Conferences  News  Mediton  Contact   
   Journals
print this
   Allergy Asthma Immunology - archive  

Allergy Asthma Immunology
     Archive
     Editorial staff
     Editorial board
     For authors
     Subscription
Otorhinolaryngology
Allergology Review



 Search in articles:
  Authority of Polish Society of Allergology




vol 11. no 1. March 2006  
 TABLE OF CONTENT

 Original articles
Grzegorz Mincewicz, Agnieszka Aloszko, Eliza Wasilewska, Wojciech Kurowski, Ewa Mierzejewska

Introduction. Asthma, which is characterised by airway remodelling manifested by thicker walls of large and small bronchi in severe asthma, and of small bronchi in mild asthma, is often preceded by perennial allergic rhinitis (PAR).
Aim of the study. To assess the impaired patency of bronchioles we analysed the difference between lung tissue density (LTD) on inspiratory and expiratory high resolution computed tomography (HRCT) scans and the frequency of "air trapping" episodes.
Material and methods. 30 patients with asthma, 48 with PAR and 20 healthy subjects (control group - CG) were enrolled to the study. HRCT was performed at inspiration and expiration. LTD in Hounsfield units (HU) was measured at three levels of the lung - the upper (U), middle (M) and lower field (L).
Results. The mean differences between the inspiratory and expiratory LTD in U/M/L fields were: 88/80/77 HU in asthmatics, 107/105/113 HU in PAR patients, and 134/115/143 HU in CG, respectively. In the asthmatics, the mean difference in LTD between inspiration and expiration was smaller than in CG in all examined fields and smaller than in PAR in the lower field. "Air trapping" was found in U/M/L field in 54/71/70 % of asthmatics, 48/54/42 % of patients with PAR and 25/35/10 % of CG, respectively. In the asthmatics, "air trapping" was significantly more frequent than in CG in all examined fields and more frequent than in PAR in the lower field. "Air trapping" frequency was significantly higher in PAR than in CG in the lower field.
Conclusions: In the asthmatic and in PAR patients, "air trapping" was observed more frequently than in healthy subjects. "Air trapping" on HRCT scans may represent an early sign of airway remodelling.


keywords: tomografia komputerowa wysokiej rozdzielczości (TKWR), przewlekły alergiczny nieżyt nosa (PANN), astma oskrzelowa (astma), pułapka powietrza, przebudowa dróg oddechowych (remodeling), high resolution computed tomography (HRCT), perennial allergic rhinitis

pages: from 56 to 61



estimated time of download (394 kB)
broadband speed:561282565121024[kbps]
time:80261374[sec]


You need to have Adobe Acrobat Reader to view the PDF file. It's free. If you don't have the Adobe Acrobat Reader plugin yet, you can get it HERE.


Start page | Journals | Books | Conferences | News | Mediton | Contact

Copyright © 1996-2020 Mediton Publishing House | All rights reserved.