The role of unilateral nasal inspiratory peak flow in nasal obstruction—A study of 70 patients undergoing septorhinoplasty surgery

2019 ◽  
Vol 44 (3) ◽  
pp. 427-430
Author(s):  
Anika Kaura ◽  
Jagdeep S. Virk ◽  
Jonathan Joseph ◽  
Catherine Rennie ◽  
Prem Singh Randhawa ◽  
...  
Keyword(s):  
Nasal Obstruction ◽  
Peak Flow ◽  
Nasal Inspiratory Peak Flow

scholarly journals Comparison of acoustic rhinometry and nasal inspiratory peak flow as objective tools for nasal obstruction assessment in patients with chronic rhinosinusitis

2015 ◽  
Vol 53 (1) ◽  
pp. 66-74 ◽  
Author(s):  
E.K. Proimos ◽  
D.E. Kiagiadaki ◽  
T.S. Chimona ◽  
F.G. Seferlis ◽  
N.J. Maroudias ◽  
...  
Keyword(s):  
Chronic Rhinosinusitis ◽  
Nasal Obstruction ◽  
Peak Flow ◽  
Acoustic Rhinometry ◽  
Nasal Inspiratory Peak Flow

scholarly journals Hillslope Contribution to the Clark Instantaneous Unit Hydrograph: Application to the Seolmacheon Basin, Korea

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1707
Author(s):  
Chulsang Yoo ◽  
Huy Phuong Doan ◽  
Changhyun Jun ◽  
Wooyoung Na
Keyword(s):  
Peak Flow ◽  
Peak Time ◽  
Rainfall Runoff ◽  
Maximum Rainfall ◽  
Rainfall Events ◽  
Storage Coefficient ◽  
Channel Velocity ◽  
Linear Reservoir ◽  
Mountainous Basin

In this study, the time–area curve of an ellipse is analytically derived by considering flow velocities within both channel and hillslope. The Clark IUH is also derived analytically by solving the continuity equation with the input of the derived time–area curve to the linear reservoir. The derived Clark IUH is then evaluated by application to the Seolmacheon basin, a small mountainous basin in Korea. The findings in this study are summarized as follows. (1) The time–area curve of a basin can more realistically be derived by considering both the channel and hillslope velocities. The role of the hillslope velocity can also be easily confirmed by analyzing the derived time–area curve. (2) The analytically derived Clark IUH shows the relative roles of the hillslope velocity and the storage coefficient. Under the condition that the channel velocity remains unchanged, the hillslope velocity controls the runoff peak flow and the concentration time. On the other hand, the effect of the storage coefficient can be found in the runoff peak flow and peak time, as well as in the falling limb of the runoff hydrograph. These findings are also confirmed in the analysis of rainfall–runoff events of the Seolmacheon basin. (3) The effect of the hillslope velocity varies considerably depending on the rainfall events, which is also found to be mostly dependent upon the maximum rainfall intensity.

11:40 AM: The Role of Turbinate Surgery for Nasal Obstruction

1996 ◽  
Vol 115 (2) ◽  
pp. P155-P155
Author(s):  
William J. Belles ◽  
Zan Mra ◽  
George T. Simpson
Keyword(s):  
Nasal Obstruction

The role of carotid bodies in the establishment of oral breathing during nasal obstruction in lambs and ewes

1990 ◽  
Vol 80 (1) ◽  
pp. 71-82 ◽  
Author(s):  
R. Harding ◽  
G.A. Wood
Keyword(s):  
Nasal Obstruction ◽  
Oral Breathing ◽  
Carotid Bodies

Nasal inspiratory peak flow rates after cold stimulation of the feet in allergic rhinitis and normals

2002 ◽  
Vol 109 (1) ◽  
pp. S97-S97
Author(s):  
Renata Witkowska ◽  
Alan Wolff ◽  
Kumar Patel ◽  
Stanley Weiss ◽  
Leonard Bielory
Keyword(s):  
Allergic Rhinitis ◽  
Peak Flow ◽  
Cold Stimulation ◽  
Flow Rates ◽  
Nasal Inspiratory Peak Flow ◽  
Stimulation Of

scholarly journals Patient experience of nasal obstruction and its clinical assessment

2018 ◽  
Vol 132 (4) ◽  
pp. 318-322 ◽  
Author(s):  
L Nip ◽  
M Tan ◽  
K L Whitcroft ◽  
R Gupta ◽  
T S Leung ◽  
...  
Keyword(s):  
Nasal Obstruction ◽  
Patient Experience ◽  
Flow Measurement ◽  
Prospective Survey ◽  
Type Method ◽  
Novel Device ◽  
Nasal Inspiratory Peak Flow ◽  
Assessment Techniques ◽  
Current Assessment ◽  
One Year

AbstractBackground:The correlation between objective and subjective nasal obstruction is poor, and dissatisfaction rates after surgery for nasal obstruction are high. Accordingly, novel assessment techniques may be required. This survey aimed to determine patient experience and preferences for the measurement of nasal obstruction.Method:Prospective survey of rhinology patients.Results:Of 72 questionnaires distributed, 60 were completed (response rate of 83 per cent). Obstruction duration (more than one year) (χ2 = 13.5, p = 0.00024), but not obstruction severity, affected willingness to spend more time being assessed. Questionnaires (48 per cent) and nasal inspiratory peak flow measurement (53 per cent) are the most commonly used assessment techniques. Forty-nine per cent of participants found their assessment unhelpful in understanding their obstruction. Eighty-two per cent agreed or strongly agreed that a visual and numerical aid would help them understand their blockage.Conclusion:Many patients are dissatisfied with current assessment techniques; a novel device with visual or numerical results may help. Obstruction duration determines willingness to undergo longer assessment.

scholarly journals Dynamic Hyporheic Zones: Exploring the Role of Peak Flow Events on Bedform‐Induced Hyporheic Exchange

2019 ◽  
Vol 55 (1) ◽  
pp. 218-235 ◽  
Author(s):  
Tanu Singh ◽  
Liwen Wu ◽  
Jesus D. Gomez‐Velez ◽  
Jörg Lewandowski ◽  
David M. Hannah ◽  
...  
Keyword(s):  
Peak Flow ◽  
Hyporheic Exchange ◽  
Hyporheic Zones

The Role of Rhinomanometry, Acoustic Rhinometry, and Mucociliary Transport Time in the Assessment of Nasal Patency

2000 ◽  
Vol 79 (5) ◽  
pp. 397-400 ◽  
Author(s):  
Desiderio Passàli ◽  
Chiara Mezzedimi ◽  
Giulio Cesare Passàli ◽  
Daniele Nuti ◽  
Luisa Bellussi
Keyword(s):  
Nasal Obstruction ◽  
Acoustic Rhinometry ◽  
Mucociliary Transport ◽  
Nasal Patency ◽  
Analog Scale ◽  
Transport Time ◽  
Subjective Assessments ◽  
Symptom Scores ◽  
Objective Tests

We conducted a study of 60 patients with different nasal pathologies who complained of nasal obstruction. Our goal was to evaluate the reliability of rhinomanometry, acoustic rhinometry, and the measurement of mucociliary transport time in helping make the diagnosis of nasal pathologies. We also sought to discover whether there is a correlation between the findings of these objective tests and the results of patients’ own subjective assessments of nasal obstruction. We found that acoustic rhinometry was more specific and more sensitive than rhinomanometry in diagnosing rhinopathies inpatients with structural anomalies. Symptom scores as rated by patients on the visual analog scale frequently did not correlate with objective measures, as patients often overestimated the severity of their obstruction. However, for a few patients, there was a correlation between symptom scores and mucociliary transport times.

scholarly journals Role of Asthma Education in the Management of Adult Asthma

1995 ◽  
Vol 2 (suppl a) ◽  
pp. 38A-42A
Author(s):  
Johanne Côté
Keyword(s):  
Environmental Factors ◽  
Airway Inflammation ◽  
Symptom Severity ◽  
Peak Flow ◽  
Action Plan ◽  
Asthma Treatment ◽  
Newly Diagnosed ◽  
Inhalation Device ◽  
Asthma Attack

When a patient is newly diagnosed as having asthma, he or she is often prescribed new medication without getting much information on the disease and its treatment. This article emphasizes the need to educate asthmatics. Asthma treatment should begin with a proper adjustment of the medication, allowing asthmatics to lead a normal life. All asthmatics should be shown how to use their inhalation device properly. They should he knowledgeable about the basic aspects of asthma, airway inflammation and bronchoconstriction, use or medication and early symptoms heralding an asthma attack. Environmental factors that may trigger an asthma attack should be explained. Patients should be able to self-monitor asthma using either symptom severity or a peak flow meter. Because asthma is an unpredictable disease, patients should have a self-action plan to implement when their asthma deteriorates.

scholarly journals Intranasal lysine-aspirin administration decreases polyp volume in patients with aspirin-intolerant asthma

2007 ◽  
Vol 121 (12) ◽  
pp. 1156-1160 ◽  
Author(s):  
N Ogata ◽  
Y Darby ◽  
G Scadding
Keyword(s):  
Nitric Oxide ◽  
Peak Expiratory Flow ◽  
Flow Rate ◽  
Nasal Polyp ◽  
Peak Expiratory Flow Rate ◽  
Peak Flow ◽  
Peak Flow Rate ◽  
Nasal Symptoms ◽  
Nasal Inspiratory Peak Flow ◽  
Before And After

AbstractIntroduction:Nasal polyposis associated with aspirin-intolerant asthma tends to be difficult to control, with frequent recurrences. We examined the effect of intranasal lysine-aspirin administration on resistant nasal polyps of asthmatic, aspirin-intolerant patients, when used in addition to routine therapy.Patients and methods:Thirteen patients with asthma and intolerance to aspirin were recruited. All but one had undergone numerous polypectomies and were uncontrolled on standard therapy with intranasal corticosteroids, leukotriene receptor antagonists and nasal douching. Aspirin treatment involved one drop (100 µl) of 30 mg/ml lysine-aspirin solution to each nostril, initially daily, increased every two or three days up to a maximal of 18 drops (54 mg lysine-aspirin) a day. Nasal symptoms, nitric oxide level, nasal inspiratory peak flow rate, peak expiratory flow rate and nasendoscopic grading were assessed prior to therapy and three months later. We also compared the change in endoscopic polyp scores during three months of lysine-aspirin administration with the changes which had occurred during the three months prior to administration (during which time other therapies had been identical).Results:Nasal blockage symptoms tended to decrease; other nasal symptoms were unchanged. Significant changes were seen in nasal inspiratory peak flow rate (103.3 ± 18.9 and 140.0 ± 16.7 l/min before and after aspirin, respectively; p = 0.014), but not in peak expiratory flow rate (438.7 ± 33.4 and 440.0 ± 28.4 l/min before and after aspirin, respectively; p = 0.700). Nasal nitric oxide levels rose significantly (in both sides, p = 0.028). Expired chest nitric oxide levels did not change. Nasal polyp scores on nasendoscopic examination were significantly reduced (right side, p = 0.027; left side, p = 0.018). Compared with the preceding three months, adding intranasal lysine-aspirin application had the effect on decreasing nasal polyp volume (right side, p = 0.031; left side, p = 0.016).Conclusion:This open study suggests that intranasal lysine-aspirin administration reduces nasal polyp volume in aspirin-intolerant patients, without any adverse affect on concomitant asthma. This was a preliminary study and should be followed by a placebo-controlled, double-blind trial.

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