The role of impulse oscillometry in the management of asthma when forced expiratory maneuvers are contraindicated : case series and literature review
Objectives: The impulse oscillometry system (IOS) provides an alternative method of lung function testing for patients in whom forced expiratory manoeuvres are contraindicated, such as those with inherited vascular connective tissue disorders. Here we examine the role of IOS in the diagnosis and monitoring of asthma in such patients through a clinical case series and literature review.Methods: The clinical case series comprised of data from 12 patients with inherited connective tissue disorders representing 32 clinical encounters. Of these, 11 encounters were for asthma diagnosis and 21 were for asthma monitoring. Symptoms, exhaled nitric oxide (FeNO) and IOS were assessed at each encounter.Results: In the clinical case series, 5 of 6 patients with likely asthma (as determined by physician review and exhaled nitric oxide testing) had abnormal IOS parameters compared with 0 of 5 of those with unlikely asthma. In the monitoring group, 11 encounters resulted in treatment escalation (demonstrating suboptimal control), and 8 resulted in no change to treatment (good control). Six of 11 of those with suboptimal control had abnormalities in ≥3 IOS parameters, with R5 and R5-20 most frequently affected. Only 1 of 8 of those with good control had abnormalities in ≥3 IOS parameters.Conclusions: IOS can be used as an alternative to conventional lung function testing to support the diagnosis and monitoring of asthma when forced expiratory manoeuvres are contraindicated. Larger studies are required to establish severity and treatment escalation thresholds and provide clearer comparisons with spirometry values.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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| Enthalten in: |
The Journal of asthma : official journal of the Association for the Care of Asthma - 59(2022), 8 vom: 16. Aug., Seite 1577-1583 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Jordon, Louise H [VerfasserIn] |
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| Links: |
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| Themen: |
31C4KY9ESH |
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| Anmerkungen: |
Date Completed 14.07.2022 Date Revised 26.07.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1080/02770903.2021.1941088 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM326600183 |
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| 100 | 1 | |a Jordon, Louise H |e verfasserin |4 aut | |
| 245 | 1 | 4 | |a The role of impulse oscillometry in the management of asthma when forced expiratory maneuvers are contraindicated |b case series and literature review |
| 264 | 1 | |c 2022 | |
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| 500 | |a Date Completed 14.07.2022 | ||
| 500 | |a Date Revised 26.07.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Objectives: The impulse oscillometry system (IOS) provides an alternative method of lung function testing for patients in whom forced expiratory manoeuvres are contraindicated, such as those with inherited vascular connective tissue disorders. Here we examine the role of IOS in the diagnosis and monitoring of asthma in such patients through a clinical case series and literature review.Methods: The clinical case series comprised of data from 12 patients with inherited connective tissue disorders representing 32 clinical encounters. Of these, 11 encounters were for asthma diagnosis and 21 were for asthma monitoring. Symptoms, exhaled nitric oxide (FeNO) and IOS were assessed at each encounter.Results: In the clinical case series, 5 of 6 patients with likely asthma (as determined by physician review and exhaled nitric oxide testing) had abnormal IOS parameters compared with 0 of 5 of those with unlikely asthma. In the monitoring group, 11 encounters resulted in treatment escalation (demonstrating suboptimal control), and 8 resulted in no change to treatment (good control). Six of 11 of those with suboptimal control had abnormalities in ≥3 IOS parameters, with R5 and R5-20 most frequently affected. Only 1 of 8 of those with good control had abnormalities in ≥3 IOS parameters.Conclusions: IOS can be used as an alternative to conventional lung function testing to support the diagnosis and monitoring of asthma when forced expiratory manoeuvres are contraindicated. Larger studies are required to establish severity and treatment escalation thresholds and provide clearer comparisons with spirometry values | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Review | |
| 650 | 4 | |a Asthma | |
| 650 | 4 | |a control/management | |
| 650 | 4 | |a diagnostics | |
| 650 | 4 | |a lung function testing | |
| 650 | 4 | |a respiratory physiology | |
| 650 | 7 | |a Nitric Oxide |2 NLM | |
| 650 | 7 | |a 31C4KY9ESH |2 NLM | |
| 700 | 1 | |a Gore, Robin B |e verfasserin |4 aut | |
| 700 | 1 | |a Rusk, Rosemary A |e verfasserin |4 aut | |
| 700 | 1 | |a Knox-Brown, Ben |e verfasserin |4 aut | |
| 700 | 1 | |a Marciniak, Stefan J |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:59 |g year:2022 |g number:8 |g day:16 |g month:08 |g pages:1577-1583 |
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