Reformatted Computed Tomography to Assess the Internal Nasal Valve and Association With Physical Examination

Bloom, Jason D.; Sridharan, Shaum; Hagiwara, Mari; Babb, James S.; White, W. Matthew; Constantinides, Minas

doi:10.1001/archfacial.2012.50

Cited by 33 publications

(30 citation statements)

References 13 publications

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“…Only 50% of our study population was Caucasian. With a mean value of 14.2° in the Caucasian population, the angle measured by OCT correlated well with historical ranges of 10° to 20° . There are few reports on the measurement of INV area in Asians.…”

Section: Discussionsupporting

confidence: 66%

“…It was safe, minimally invasive, and well‐tolerated in patients without the need for local anesthesia or sedation. With a mean value of 18.3°, the angle of the INV measured by OCT was slightly larger than literature‐reported values of 10° to 15° . However, these classically described values were collected from a Caucasian population.…”

Section: Discussionmentioning

confidence: 60%

“…4,5,13 However, several limitations, including high costs and lack of reliability, have led to limited use. 1,10,11 Computed tomography (CT) has been proposed as an objective tool to provide anatomical information, [14][15][16][17] but currently, there are no data to show that radiographic studies are useful in evaluating the extent of nasal valve collapse. 3,10 CT is not commonly ordered for nasal airway obstruction management alone.…”

Section: Introductionmentioning

confidence: 99%

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Imaging of the internal nasal valve using long‐range Fourier domain optical coherence tomography

et al. 2015

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Objectives/Hypothesis To evaluate for the first time the feasibility and methodology of long-range Fourier domain optical coherence tomography (LR-OCT) imaging of the internal nasal valve (INV) area in healthy individuals. Study Design Prospective individual cohort study. Methods For 16 individuals, OCT was performed in each nare. The angle and the cross-sectional area of the INV were measured. OCT images were compared to corresponding digital pictures recorded with a flexible endoscope. Results INV angle measured by OCT was found to be 18.3° ± 3.1° (mean ± standard deviation). The cross-sectional area was 0.65 ± 0.23 cm2. The INV angle measured by endoscopy was 18.8° ± 6.9°. There was no statistically significant difference between endoscopy and OCT concerning the mean INV angle (P = .778), but there was a significant difference in test precision (coefficient of variance 50% vs. 15%; P < .001). Conclusions LR-OCT proved to be a fast and easily performed method. OCT could accurately quantify the INV area. The values of the angle and the cross-sectional area of the INV were reproducible and correlated well with the data seen with other methods. Changes in size could be reliably delineated. Endoscopy showed similar values but was significantly less precise.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

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Imaging of the internal nasal valve using long‐range Fourier domain optical coherence tomography

et al. 2015

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“…In the literature, large differences are reported between objective and subjective measurements of nasal obstruction [32–34]. Even the application of reformatted computer tomography to assess the INV proves inferior to the combination of physical examination of the nose and patient symptoms [35]. …”

Section: Discussionmentioning

confidence: 99%

A prospective, non-randomized evaluation of a novel low energy radiofrequency treatment for nasal obstruction and snoring

Brehmer

Bodlaj

Gerhards

2019

Eur Arch Otorhinolaryngol

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BackgroundWeak or inward-bent cartilage of the nasal sidewall at the level of the internal nasal valve (INV) can produce narrowness or collapse of the nasal valve. This is a common cause of impaired nasal breathing during daily activities and there is also an established connection between nasal obstruction and snoring. The condition is often difficult to treat, although even a small enlargement of the lumen at the nasal valve can lead to a significant improvement in the ease of nasal breathing.MethodsThe primary objective of this prospective study was to evaluate the safety and efficacy of the Vivaer system for the treatment of narrowed nasal valves and to measure changes in the symptoms of nasal obstruction and snoring. The Vivaer system uses low energy radiofrequency to remodel the nasal sidewall in order to improve airflow.ResultsThe study involved 31 patients presenting from 1st September 2017 to 1st May 2018 with symptoms of nasal obstruction and snoring. In all patients, an improvement was observed in nasal breathing measured by NOSE score, sleep quality by SOS questionnaire and quality of life as measured by EQ-5D and SNOT-22.ConclusionVivaer intranasal remodeling can provide a durable and well-tolerated non-invasive treatment for those patients who are suffering congestion due to narrowness or collapse of the INV.

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“…Acoustic rhinometry detects acoustic signals reflected from the wall of the nasal cavity and calculates the minimum cross-sectional area (MCA) and nasal volume (NV) of the nose [7]. However, the results of rhinomanometry and acoustic rhinometry do not correlate well with subjective assessments, especially among healthy individuals [8][9][10]. The objective assessment of PR patients remains controversial, and few studies have objectively examined the difference between groups with and without a sensation of nasal congestion with PR.…”

Section: Introductionmentioning

confidence: 99%

Objective assessment of persistent rhinitis in Chinese and its relationship with serum indicators

Cheng

Wang

Lin

et al. 2014

Eur Arch Otorhinolaryngol

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Persistent rhinitis (PR) is a chronic disease that affects millions of people. However, it lacks of a useful method, which can indicate the actual severity of the inflammation in PR patients. This study was designed to seek an examination which could reflect the actual severity of PR disease. The serum Phadiatop test, ECP level, four-phase rhinomanometry, and acoustic rhinometry were assessed in 91 adult patients with PR and 10 healthy controls. The serum total IgE was determined in some of the patients and all of the controls. The patients were divided into four groups: ARWO, ARWTO, NARWO and NARWTO. 40% (22/55) of AR and 33.3% (13/36) of NAR patients never complained of persistent nasal obstruction. Serum ECP levels were increased in the ARWO group. Serum total IgE was significantly elevated in the AR groups. MCA(1-Min) and MCA(1-T) were significantly reduced in the ARWO, ARWTO, and NARWO groups. NV(6-Min) and NV(6-T) were decreased in all PR groups, but only some of these differences were significant. In the ARWO group, MCA(2-Min) (r = -0.252), MCA(2-T) (r = -0.377), NV(6-Min) (r = -0.32), and NV(6-T) (r = -0.311) had significant relationships with serum ECP. We recommend acoustic rhinometry as a useful routine tool for the diagnosis of PR, even among patients without persistent subjective nasal obstruction. This technique might reveal the actual status of nasal congestion. An elevated serum ECP level might indicate severe AR and is negatively correlated with the results of acoustic rhinometry.

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Reformatted Computed Tomography to Assess the Internal Nasal Valve and Association With Physical Examination

Cited by 33 publications

References 13 publications

Imaging of the internal nasal valve using long‐range Fourier domain optical coherence tomography

Imaging of the internal nasal valve using long‐range Fourier domain optical coherence tomography

A prospective, non-randomized evaluation of a novel low energy radiofrequency treatment for nasal obstruction and snoring

Objective assessment of persistent rhinitis in Chinese and its relationship with serum indicators

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