FEV1 (Forced expiratory volume at one second).
Comparison of FEV1/FEV6 with FEV1/FVC in the diagnosis of COPD
... In old aged persons, for identification of COPD, FEV6 is a better option than FVC. Because spirometry is easy to carry out, it can be repeated, patient compliance is better as well as the diagnostic accuracy is better. ...
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<p>Low FEV1 Is Associated With Increased Risk Of Cachexia In COPD Patients</p>
... Our fi ndings indicated that COPD patients with lower FEV1 level had higher RMR, also, previous researchers have demonstrated similar results. 25,26 Creutzberg et al investigated 172 patients with COPD and 92 ...
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FEV1 and FVC and systemic inflammation in a spinal cord injury cohort
... protein; FEV1: Forced expiratory volume in 1 s; FVC: Forced vital capacity; IL- 6: Interleukin-6; IQR: Interquartile range; NSCIA: National Spinal Cord Injury Association; RV: Residual volume; SCI: Spinal cord ...
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Obstructive sleep apnoea accelerates FEV1 decline in asthmatic patients
... The most important finding of the present study was that the annual decline in FEV1 of asthmatic patients with severe OSA was significantly accelerated compared to those of patients with[r] ...
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Relationship between FEV1 and PaO2,PaCO2 in Patients with Chronic Bronchitis
... Materials and Methods: This cross sectional study was carried out on 118 consecutive patients with chronic bronchitis referring to Afshar hospital in Yazd in order to determine the correlation between spirometry ...
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The importance of data issues when comparing cystic fibrosis registry outcomes between countries: Are annual review FEV1 in the UK only collected when subjects are well?
... The recent US‐UK FEV1 comparison using The UK registry has no “stable FEV1” data but collects best FEV1 2010 dataset found superior FEV1 in the United States, especially data since 2012 [r] ...
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A mathematical reason for FEV1/FVC dependence on age
... Many authors have analyzed how FEV1/FVC changes with age and which regression equation is the best among others [6-8,10-14]. Accurate matching of the equation is essential since an incorrect equa- tion may lead to ...
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Comparison between FEV1/FEV6 and FEV1/FVC as screening of chronic obstructive pulmonary disease
... 8. Lundgren FL, Cabral MM, Climaco DC, de Macedo LG, Coelho Mde A, Dias AL. Determination of the efficacy of FEV6 as a surrogate for FVC in the diagnostic screening for chronic obstructive pulmonary disease through the ...
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Inhaled corticosteroids and FEV1 decline in chronic obstructive pulmonary disease: a systematic review
... not shown if the study did not report them or they were unable to be calculated.. function declines at a similar rate in both ICS and non- ICS medications. This may be due to an initial [r] ...
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Comparison of the variability of the annual rates of change in FEV1 determined from serial measurements of the pre- versus post-bronchodilator FEV1 over 5 years in mild to moderate COPD: Results of the lung health study
... Sample sizes were also calculated for the SIA and SIP groups versus a hypothetical comparison study group with an assumed slope difference of 10, 15 and 20 ml/yr, respectively, to invest[r] ...
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Association between functional small airways disease and FEV1 decline in COPD
... Here we demonstrated, in a large cohort of current and former smokers with a broad spectrum of disease severity, that functional small airways disease on CT as measured by PRM is signifi[r] ...
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Peak expiratory flow as an endpoint for clinical trials in asthma: a comparison with FEV1
... measured under supervision in the clinic and, for both lung function parameters, the correlations between supervised clinic and unsupervised home measurements, using the results from the[r] ...
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Level and course of FEV1 in relation to polymorphisms in NFE2L2 and KEAP1 in the general population
... We used Linear Mixed Effect (LME) to study the effects of SNPs and haplotypes (additive genetic model; coded: 0 = homozygote wild type, 1 = heterozygote, 2 = homozygote mutant) on the le[r] ...
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Reference percentiles for FEV1 and BMI in European children and adults with cystic fibrosis
... To mitigate against such issues, we combined data from the European Cystic Fibrosis Soci- ety Patient Registry (ECFSPR) and data from the current French CF Modifier Gene Study, to obtain[r] ...
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Heterogeneous pattern of differences in respiratory parameters between elderly with either good or poor FEV1
... KORA: Cooperative Health Research in the Augsburg Region; LED: Lower end of the FEV 1 distribution; LLN: Lower limit of normal; NO: Nitric oxide; P01: Mouth occlusion pressure 0.1 s afte[r] ...
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Effect of Parity on FVC and FEV1 during Pregnancy
... FVC pattern in the first trimester of pregnancy for primigravid control and other parites The FVC was significantly higher (p<0.001) in para3 when compared Primigravida.. The FVC was[r] ...
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Evaluation of spirometry in asthmatic children
... Children who were unable to complete the PFT were not enrolled in the present. A self-constructed semi- structured case record form was used to record the demographic details, clinical symptoms, signs and the laboratory ...
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ASTHMA AMONG ELITE ATHLETES, MECHANISM OF OCCURENCE AND IMPACT ON RESPIRATORY PARAMETERS: A REVIEW OF LITERATURE
... ship FEV1/FVC, peak expiratory flow (PEF) and max- imum voluntary ventilation (MVV) ...(22,23). FEV1 is consider to be a priority indicator of pulmonary func- tion while PEF is less reproducible and refined ...
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Impact of Cystic versus Cylindrical Types of Bronchiectasis on Pulmonary and Cardiac Functions
... ity of patients (n = 28, 50%), whereas 20% has restrictive defects (n = 12), mixed obstructive restrictive dysfunc- tion in 18% (n = 10) and pulmonary functions was nor- mal in 6 cases (12%). There was a statistically ...
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Bronchodilator Response of FEV6 and FEV3 as Surrogates of Forced Vital Capacity
... 4. Vandevoorde J, Verbanck S, Schuermans D, Kartounian J, Vincken W. FEV1/FEV6 and FEV6 as an alternative for FEV1/FVC and FVC in the spirometric detection of airway obstruction and restriction. Chest 2005; ...
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