The Nasal Valve: A Rhinomanometric Evaluation of Maximum Nasal Inspiratory Flow and Pressure Curves

1986 ◽  
Vol 95 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Julian Santiago-Diez de Bonilla ◽  
Thomas V. McCaffrey ◽  
Eugene B. Kern
Keyword(s):  
Airway Obstruction ◽  
Nasal Obstruction ◽  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Resistance ◽  
Nasal Valve ◽  
Nasal Deformity ◽  
Asymptomatic Group ◽  
Nasal Airway Resistance ◽  
Anatomical Evidence

The nasal valve is defined as the region of the nasal airway bounded by the caudal end of the upper lateral cartilages and the nasal septum. During inspiration this region of the nasal airway may collapse and produce a marked increase in nasal airway resistance. To define the function of this region, measurements of the nasal airway resistance in 38 subjects were performed. Using anterior mask rhinomanometry, right and left total nasal resistance, right and left upstream nasal resistance, right and left downstream nasal resistance, and right and left transmural collapsing pressure of the nasal valve were measured. Subjects who complained of nasal obstruction and had anatomical evidence of anterior nasal deformity showed a reduced level of transmural closing pressure compared with subjects complaining of no airway obstruction or those with anatomical evidence of posterior nasal deformity. This suggests that premature collapse of the nasal valve due to inadequate cartilaginous support is an important factor in producing nasal airway obstruction in individuals with anterior nasal septal abnormality. In those individuals with nasal airway obstruction and anatomical evidence of posterior nasal deformity, downstream nasal resistance was elevated compared with the asymptomatic group and the group with anatomical evidence of anterior nasal septal deformity. This paper demonstrates that premature collapse of the nasal valve is responsible for the symptom of nasal obstruction in many patients with anterior nasal septal deformity.

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.

scholarly journals Nasal obstruction causes a decrease in lip-closing force

2011 ◽  
Vol 81 (5) ◽  
pp. 750-753 ◽  
Author(s):  
Kishio Sabashi ◽  
Kaei Washino ◽  
Issei Saitoh ◽  
Youichi Yamasaki ◽  
Atsushi Kawabata ◽  
...  
Keyword(s):  
Nasal Obstruction ◽  
Airway Resistance ◽  
Correlation Coefficients ◽  
Significant Negative Correlation ◽  
Normal Group ◽  
Nasal Airway ◽  
Nasal Airway Resistance ◽  
Obstruction Group ◽  
Closing Force ◽  
Group A

Abstract Objective: To investigate the relationship between nasal obstruction and lip-closing force. Materials and Methods: Nasal airway resistance and lip-closing force measures were recorded for 54 Japanese females. The subjects were classified into normal and nasal obstruction groups according to nasal airway resistance values. Differences between the normal and nasal obstruction groups in lip-closing force were tested statistically. Correlation coefficients were calculated between the measures for the normal and nasal obstruction groups. Results: Lip-closing force for the nasal obstruction group was significantly less than for the normal group (P < .05). In the normal group, nasal airway resistance did not correlate with lip-closing force, while in the nasal obstruction group a significant negative correlation was found between nasal airway resistance and lip-closing force (P < .05). Conclusions: Nasal obstruction is associated with a decrease in lip-closing force. When the severity of nasal obstruction reaches a certain level, the lip-closing force is weakened.

scholarly journals Paradoxical increase in nasal airway resistance following a topical nasal decongestant spray

2011 ◽  
Vol 49 (1) ◽  
pp. 127-127
Author(s):  
N.M. Doddi ◽  
R. Eccles
Keyword(s):  
Nasal Obstruction ◽  
Common Cold ◽  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Decongestant ◽  
Nasal Airway Resistance

Nasal obstruction is a very common problem associated with common cold and topical nasal decongestant sprays are effective symptomatic treatments causing a decrease in nasal airway resistance (NAR).

Rhinomanometry evaluation of the effects of pre- and post-operative SMR on exercise

1990 ◽  
Vol 104 (2) ◽  
pp. 126-128 ◽  
Author(s):  
Farhat Nofal ◽  
Michael Thomas
Keyword(s):  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Resistance ◽  
Corrective Surgery ◽  
Post Exercise ◽  
Examination Protocol ◽  
Nasal Airway Resistance ◽  
Septal Surgery

AbstractNasal airway resistance due to uncomplicated DNS was examined in 43 patients, and the results compared with those obtained following corrective surgery. The patients were examined independently by the two authors using a strict examination protocol. Rhinomanometry was carried out pre- and post-operatively at rest and after exercise assessing the worst and the better breathing nostrils separately. The results show that both resting and post-exercise nasal resistance was reduced following septal surgery.

Total nasal airway resistance while sitting predicts airway collapse when lying down

2020 ◽  
Vol 134 (10) ◽  
pp. 917-924
Author(s):  
A Karlsson ◽  
M Persson ◽  
A-C Mjörnheim ◽  
G Gudnadottir ◽  
J Hellgren
Keyword(s):  
Nasal Obstruction ◽  
Supine Position ◽  
Airway Resistance ◽  
Upper Airway ◽  
Nasal Airway ◽  
Nasal Breathing ◽  
Nasal Airway Resistance ◽  
Airway Collapse ◽  
Before And After ◽  
Lying Down

AbstractBackgroundNasal obstruction when lying down is a common complaint in patients with chronic nasal obstruction, but rhinomanometry is typically performed in the sitting position. This study aimed to analyse whether adding rhinomanometry in a supine position is a useful examination.MethodA total of 41 patients with chronic nasal obstruction underwent rhinomanometry and acoustic rhinometry, sitting and supine, before and after decongestion, as well as an over-night polygraphy.ResultsTotal airway resistance was measurable in a supine position in 48 per cent (14 of 29) of the patients with total airway resistance of equal to or less than 0.3 Pa/cm3/second when sitting and in none (0 of 12) of the patients with total nasal airway resistance of more than 0.3 Pa/cm3/second when sitting. After decongestion, this increased to 83 per cent and 58 per cent, respectively.ConclusionIncreased nasal resistance when sitting predicts nasal breathing problems when supine. Rhinomanometry in a supine position should be performed to diagnose upper airway collapse when supine.

Active anterior rhinomanometry analysis in normal adult Malays

2003 ◽  
Vol 117 (8) ◽  
pp. 605-608 ◽  
Author(s):  
A. H. Suzina ◽  
M. Hamzah ◽  
A. R. Samsudin
Keyword(s):  
Airway Resistance ◽  
Objective Assessment ◽  
Nasal Airway ◽  
Nasal Resistance ◽  
Clinical Method ◽  
Pressure Point ◽  
Nasal Airway Resistance ◽  
The Mean ◽  
Reference Pressure ◽  
Active Anterior Rhinomanometry

The differences in facial anatomical structures of the major ethnic groups,may also be reflected in nasal resistance. Active anterior rhinomanometry (AAR) is the recommended technique for the objective assessment of nasal airway resistance (NAR). This study comprised of 85 adult Malay subjects. All the subjects had to undergo a primary assessment of relevantsymptoms of nasal disease and nasal examination before undergoing AAR assessment. The mean value of total nasal airway resistance (NAR) was 0.19 Pa/cm3/s (ranged from 0.09 to 0.55Pa/cm3/s) at 75 Pa pressure point and 0.24 Pa/cm3/s ranged from 0.12 to 0.52 Pa/cm3/s) at 150 Pa pressure point. The mean unilateral NARwas 0.46 Pa/cm3/s at a reference pressure of 75 Pa and 0.51 Pa/cm3/s at a reference pressure of 150 Pa. In this study we presented normal values for NAR in healthy Malay adult subjects. AARproves to be a valuable clinical method for recording and quantitating nasal resistance.

A Comparison of Nasal Resistance in White Caucasians and Blacks

1997 ◽  
Vol 11 (1) ◽  
pp. 73-76 ◽  
Author(s):  
Ercan I. Canbay ◽  
Suren N. Bhatia
Keyword(s):  
Airway Resistance ◽  
Healthy Adults ◽  
Nasal Airway ◽  
Nasal Resistance ◽  
Nasal Decongestant ◽  
Nasal Airway Resistance ◽  
The Mean

Total nasal resistance was measured in 42 white Caucasian and 32 black healthy adults by both anterior and posterior rhinomanometry after using a nasal decongestant. The nasal airway resistance was found to be lower in the blacks compared to the Caucasians by both anterior and posterior methods. The mean total nasal airway resistance was 0.136 Pa/cm3/s in the blacks and 0.179 Pa/cm3/s in the Caucasians by the anterior method, and 0.134 Pa/cm3/s and 0.161 Pa/cm3/s, respectively, by the posterior method. These differences were highly statistically significant.

scholarly journals Treatment with a topical glucocorticoid, budesonide, reduced the variability of rhinomanometric nasal airway resistance

2014 ◽  
Vol 52 (1) ◽  
pp. 19-24
Author(s):  
H.L. Thulesius ◽  
A. Cervin ◽  
M. Jessen
Keyword(s):  
Visual Analogue Scale ◽  
Healthy Volunteers ◽  
Nasal Obstruction ◽  
Analogue Scale ◽  
Airway Resistance ◽  
Nasal Airway ◽  
Nasal Airway Resistance ◽  
The Mean ◽  
Active Anterior Rhinomanometry

Background: Previous rhinomanometry studies have shown significant long-term variability of the nasal airway resistance and questioned the clinical validity of rhinomanometry. Research question: Could treatment with a topical glucocorticoid, budesonide, influence the long-term variability of active anterior rhinomanometry? Methods: Eight healthy volunteers participated in an unblinded controlled trial without, and later with, nasal budesonide once a day for 5 months. Their nasal airway resistance was measured every two weeks with active anterior rhinomanometry before and after decongestion with xylometazoline hydrochloride. In addition, subjective nasal obstruction was evaluated on a Visual Analogue Scale before each measurement. The participants had a year earlier been investigated with rhinomanometry every two weeks during 5 months but without budesonide treatment. We compared the variability of nasal airway resistance during the two periods with and without treatment with topical budesonide. Results: Budesonide significantly reduced mean nasal airway resistance and the standard deviation of the mean after decongestion for 6 of 8 participants. The mean reduction of the nasal airway resistance was 40% for the decongested nasal cavity compared to the period without treatment with nasal budesonide. Subjective nasal obstruction assessed by Visual Analogue Scale was reduced in 3 of the 8 participants. Conclusion: The variability of nasal airway resistance was significantly reduced by treatment with topical budesonide for 6 out of 8 healthy volunteers participating in an unblinded repeated 5 month trial where the participants served as their own controls.

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