The objective assessment of nasal patency

Jones, A. S.; Viani, Laura; Phillips, David; Charters, P.

doi:10.1111/j.1365-2273.1991.tb01978.x

Cited by 95 publications

(90 citation statements)

References 24 publications

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“…Measurement of NPIF has been shown to be a reproducible and valid measurement compared to other measures of nasal airflow, such as rhinomanometry, nasal peak expiratory flow or subjective measures of nasal patency [24][25][26][27][28][29]. The advantage of using NPIF is that the equipment is relatively inexpensive and portable, the measurement is rapid, noninvasive and easy for the subject to perform.…”

Section: Discussionmentioning

confidence: 99%

Nasal peak inspiratory flow at altitude

Barry¹,

Mason²,

Richalet³

2002

Eur Respir J

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Nasal peak inspiratory flow at altitude. P.W. Barry, N.P. Mason, J-P. Richalet. #ERS Journals Ltd 2002. ABSTRACT: The present study investigated whether there are changes in nasal peak inspiratory flow (NPIF) during hypobaric hypoxia under controlled environmental conditions.During operation Everest III (COMEX 997), eight subjects ascended to a simulated altitude of 8,848 m in a hypobaric chamber. NPIF was recorded at simulated altitudes of 0 m, 5,000 m and 8,000 m. Oral peak inspiratory and expiratory flow (OPIF, OPEF) were also measured. Ambient air temperature and humidity were controlled.NPIF increased by a mean¡SD of 16¡12% from sea level to 8,000 m, whereas OPIF increased by 47 ¡ 14%. NPIF rose by 0.085 ¡ 0.03 L?s -1 per kilometre of ascent (pv0.05), significantly less than the rise in OPIF and OPEF of 0.35 ¡ 0.10 and 0.33 ¡ 0.04 L?s -1 per kilometre (pv0.0005). Nasal peak inspiratory flow rises with ascent to altitude. The rise in nasal peak inspiratory flow with altitude was far less than oral peak inspiratory flow and less than the predicted rise according to changes in air density. This suggests flow limitation at the nose, and occurs under controlled environmental conditions, refuting the hypothesis that nasal blockage at altitude is due to the inhalation of cold, dry air. Further work is needed to determine if nasal blockage limits activity at altitude.

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Section: Discussionmentioning

confidence: 99%

Nasal peak inspiratory flow at altitude

Barry¹,

Mason²,

Richalet³

2002

Eur Respir J

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“…In most studies from literature, nasal resistance is examined in various pathological conditions and compared with a control group of healthy subjects and only limited number of studies focuses healthy population. [6][7][8][9][10][11][12][13][14][15][16] Nasal resistance of healthy white adult subjects reported in literature at pressure level of 150 Pa as measured and computed using active anterior rhinomanometry, mostly range from 0.14 to 0.25 Pa/ cm 3 /s for unilateral nasal passage and from 0.08 to 0.31 Pa/cm 3 /s. for bilateral nasal passages.…”

Section: Discussionmentioning

confidence: 99%

Computerized rhinomanometry: A study of total nasal resistance normal values

et al. 2009

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Computerized rhinomanomatry with the practical software programmes is used widely as a research tool to evaluate objectively nasal air flow and resistance parametres, while the increase of its clinical application may be facilitated by further standardization of the method. The aim of the study was to determine the total nasal resistance normal values in healthy adult population using a method of computerized rhinomanometry. A randomized sample of 108 white healthy adults (216 nasal cavities), both sexs with a mean age of 32 (20 -45) years comprised the test group. Nasal patency was measured by active anterior rhinomanometry in non-decongested mucosa ("at rest") during 10 repetitive measurements at inspiratory and expiratory reference pressure of 150 Pa. Nasal resistance was measured and calculated accoding to the recommendations of the Committee on objective assessment of the nasal airway, International Rhinologic Society.

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“…Peak nasal inspiratory flow measurement has been used in several studies to determine nasal patency (64) with comparable sensitivity to acoustic rhinometry (65,66) and rhinomanometry (61,67,68). A strong positive correlation has been described between PNIF and the subjective sensation of nasal obstruction determined by means of questionnaires (44,69,70).…”

Section: Objective Methodsmentioning

confidence: 99%

“…A strong positive correlation has been described between PNIF and the subjective sensation of nasal obstruction determined by means of questionnaires (44,69,70). However, some have found no correlation with subjective complaints (68,71) and some state that as a result of the great diurnal variability and poor repeatability, the test lacks the property of a good clinical test in primary care setting (72).…”

Section: Objective Methodsmentioning

confidence: 99%

Evidence‐based recommendations regarding the differential diagnosis and assessment of nasal congestion: using the new GRADE system

Spronsen

Ingels

Jansen

et al. 2008

Allergy

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Nasal congestion is an important symptom in nasal pathology and can be defined as an objective restriction of nasal cavity airflow because of mucosal pathology and/or increased mucus secretion (excluding anatomical variants). Using the new Grading Recommendations Assessment, Development and Evaluation system, evidence‐based recommendations are made that will encompass different clinical questions regarding diagnostic modalities of nasal congestion: (i) their usefulness in assessment of presence and severity of congestion; (ii) their usefulness in assessment of etiological pathology responsible for congestion; and (iii) their usefulness in follow up and treatment effectiveness evaluation of nasal congestion.

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The objective assessment of nasal patency

Cited by 95 publications

References 24 publications

Nasal peak inspiratory flow at altitude

Nasal peak inspiratory flow at altitude

Computerized rhinomanometry: A study of total nasal resistance normal values

Evidence‐based recommendations regarding the differential diagnosis and assessment of nasal congestion: using the new GRADE system

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