Paradoxical increase in nasal airway resistance after topical nasal decongestion - does it really exist? A retro- and prospective study

2016 ◽  
Vol 41 (6) ◽  
pp. 689-693 ◽  
Author(s):  
S. Swoboda ◽  
H.L. Thulesius ◽  
M. Jessen
Keyword(s):  
Prospective Study ◽  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Airway Resistance

Objective assessment of nasal resistance among electronic cigarette users

2021 ◽  
pp. 1-4
Author(s):  
S W Lim ◽  
AB Zulkiflee
Keyword(s):  
Tobacco Smoking ◽  
Repeated Measures ◽  
Airway Resistance ◽  
Electronic Cigarettes ◽  
Objective Assessment ◽  
Control Group ◽  
Nasal Airway ◽  
Nasal Resistance ◽  
Short Term ◽  
Nasal Airway Resistance

Abstract Background Electronic cigarettes have been a popular alternative to tobacco smoking. The effect of tobacco smoking on nasal airway resistance has been investigated before; however, the effect of the aerosol generated by electronic cigarettes is still unknown. This study aimed to evaluate the short-term effects of e-cigarettes on nasal airway resistance. Methods Sixty-one participants were recruited into a vapers group and a control group. The vapers group was instructed to smoke for 5 minutes, and their nasal resistance was measured pre-procedure and at 1 and 5 minutes post-procedure. The results were compared between both groups. Results Repeated measures analysis of variance demonstrated that vaping has no statistically significant effect on total nasal airway resistance. Conclusion Although the differences between both groups were not statistically significant overall, the vapers group showed a reduction in nasal airway resistance in the short term.

Evaluation of Nasal Passage Patency after Antigen and Histamine Challenge in Guinea Pigs by Acoustic Rhinometry

1997 ◽  
Vol 11 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Setsuo Nakamoto ◽  
Yasuo Sakakura ◽  
Ole F. Pedersen ◽  
Kotaro Ukai
Keyword(s):  
Nasal Cavity ◽  
Guinea Pigs ◽  
Airway Resistance ◽  
Cross Sectional Area ◽  
Nasal Passage ◽  
Nasal Airway ◽  
Sectional Area ◽  
Cross Sectional ◽  
Percent Change ◽  
Nasal Airway Resistance

We investigated the effects of antigen and histamine on the nasal passage patency in guinea pigs with or without nasal allergy. The change of nasal patency was measured by acoustic rhinometry and nasal airway resistance. Acoustic reflections have been used in adult humans to determine nasal cavity dimensions in terms of cross-sectional areas as a function of the distance from the nostril. In order to measure nasal cavity dimensions in guinea pigs, we modified equipment for use in humans by decreasing sound tube dimensions, increasing sampling frequency, and applying a special nosepiece. The percent change of volume, minimum cross-sectional area, and nasal airway resistance showed the largest changes at 10 minutes after antigen challenge in sensitized guinea pigs. There was a significant correlation between the individual percent change of nasal airway resistance and volume or minimum cross-sectional area. Histamine, 102 to 105 μg/mL, caused a dose-dependent reduction in percent change of volume in the challenged side of nonsensitized guinea pigs, but not in the opposite side. These results indicate that the noninvasive acoustic reflections technique is useful in small experimental animals, especially to assess the effect of nasal cavity dimensions after the challenge of antigen or nonspecific stimuli.

Nasal Airway Resistance and Olfactory Acuity Following Transsphenoidal Pituitary Surgery

1999 ◽  
Vol 13 (1) ◽  
pp. 45-48 ◽  
Author(s):  
K. Ikeda ◽  
K. Watanabe ◽  
H. Suzuki ◽  
T. Oshima ◽  
N. Tanno ◽  
...  
Keyword(s):  
Airway Resistance ◽  
Pituitary Surgery ◽  
Nasal Airway ◽  
Olfactory Acuity ◽  
Nasal Airway Resistance ◽  
Transsphenoidal Pituitary Surgery

Nasal Airway Resistance and the Effects of Bronchodilator Drugs in Expiratory Airflow Disorders

Respiration ◽  
1969 ◽  
Vol 26 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Burton M. Cohen
Keyword(s):  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Airway Resistance

Effect of histamine and methacholine on nasal airway resistance in atopic and nonatopic subjects *1Comparison with bronchial challenge and skin test responses

1977 ◽  
Vol 59 (2) ◽  
pp. 165-170 ◽  
Author(s):  
J MCLEAN ◽  
K MATHEWS ◽  
W SOLOMON ◽  
P BRAYTON ◽  
A CIARKOWSKI
Keyword(s):  
Skin Test ◽  
Airway Resistance ◽  
Nasal Airway ◽  
Bronchial Challenge ◽  
Nasal Airway Resistance

Nasal Airway Resistance at Different Climate Exposures: Description of a Climate Aggregate and Its Use

1990 ◽  
Vol 4 (6) ◽  
pp. 211-213 ◽  
Author(s):  
Alf Ivarsson ◽  
Lars Malm
Keyword(s):  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Airway Resistance
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