Publicação
Contribuição da curva de fluxo-volume na detecção de obstrução da via aérea central
| dc.contributor.author | Raposo, Liliana B. P. A. | |
| dc.contributor.author | Bugalho, António | |
| dc.contributor.author | Gomes, Maria João Marques | |
| dc.contributor.institution | NOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM) | |
| dc.contributor.institution | Centro de Estudos de Doenças Crónicas (CEDOC) | |
| dc.contributor.pbl | Sociedade Brasileira de Pneumologia e Tisiologia | |
| dc.date.accessioned | 2024-10-17T22:24:48Z | |
| dc.date.available | 2024-10-17T22:24:48Z | |
| dc.date.issued | 2013-07-01 | |
| dc.description.abstract | Objective: To assess the sensitivity and specificity of flow-volume curves in detecting central airway obstruction (CAO), and to determine whether their quantitative and qualitative criteria are associated with the location, type and degree of obstruction. Methods: Over a four-month period, we consecutively evaluated patients with bronchoscopy indicated. Over a one-week period, all patients underwent clinical evaluation, flow-volume curve, bronchoscopy, and completed a dyspnea scale. Four reviewers, blinded to quantitative and clinical data, and bronchoscopy results, classified the morphology of the curves. A fifth reviewer determined the morphological criteria, as well as the quantitative criteria. Results: We studied 82 patients, 36 (44%) of whom had CAO. The sensitivity and specificity of the flow-volume curves in detecting CAO were, respectively, 88.9% and 91.3% (quantitative criteria) and 30.6% and 93.5% (qualitative criteria). The most prevalent quantitative criteria in our sample were FEF50%/FIF50% > 1, in 83% of patients, and FEV1/PEF > 8 mL. L-1. min-1, in 36%, both being associated with the type, location, and degree of obstruction (p < 0.05). There was concordance among the reviewers as to the presence of CAO. There is a relationship between the degree of obstruction and dyspnea. Conclusions: The quantitative criteria should always be calculated for flow-volume curves in order to detect CAO, because of the low sensitivity of the qualitative criteria. Both FEF50%/FIF50% > 1 and FEV1/PEF > 8 mL. L-1. min-1 were associated with the location, type and degree of obstruction. | en |
| dc.description.version | publishersversion | |
| dc.description.version | published | |
| dc.format.extent | 8 | |
| dc.format.extent | 201477 | |
| dc.identifier.issn | 1806-3713 | |
| dc.identifier.other | PURE: 11933564 | |
| dc.identifier.other | PURE UUID: 9cdc90ae-0b2a-495d-a127-13b8346f3412 | |
| dc.identifier.other | Scopus: 84884803358 | |
| dc.identifier.other | PubMed: 24068266 | |
| dc.identifier.uri | http://hdl.handle.net/10362/173665 | |
| dc.identifier.url | https://www.scopus.com/pages/publications/84884803358 | |
| dc.identifier.url | https://www.scielo.br/j/jbpneu/a/34BvRdddcYR7cQ8SsYZ9qzH/?lang=en# | |
| dc.language.iso | por | |
| dc.peerreviewed | yes | |
| dc.subject | Bronchoscopy | |
| dc.subject | Lung neoplasms | |
| dc.subject | Maximal expiratory flow-volume curves | |
| dc.subject | Sensitivity and specificity | |
| dc.subject | Pulmonary and Respiratory Medicine | |
| dc.title | Contribuição da curva de fluxo-volume na detecção de obstrução da via aérea central | pt |
| dc.title.alternative | Contribution of flow-volume curves to the detection of central airway obstruction | en |
| dc.type | journal article | |
| degois.publication.firstPage | 447 | |
| degois.publication.issue | 4 | |
| degois.publication.lastPage | 454 | |
| degois.publication.title | Jornal Brasileiro de Pneumologia | |
| degois.publication.volume | 39 | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess |
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