FEF25-75%

AcronymDefinition
FEF25-75%Forced Expiratory Flow Between 25 and 75 Percent of FVC (Forced Vital Capacity)
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Measured lung Predicted function (mean lung Lung function index [+ or -] SD) function (%) FVC * (Lit) 2.60 ([+ or -]0.47) 88.27 (2.41) FEV1 ([dagger]) (Lit) 2.10 ([+ or -]0.51) 89.41 (1.05) FE[F.sub.25-75%] 3.33 ([+ or -]0.55) 106.64 (3.71) ([double dagger]) (Lit/S) FEV1/FVC 91.41 ([+ or -]3.64) 112.87 (5.89) * FVC, forced vital capacity; ([dagger]) FEV1, forced expiratory volume in 1 second; ([double dagger]) FEF25-75%, maximum mid-expiratory flow or forced expiratory flow 25-75%.
On comparison, FVC, FEV1, and FEF25-75% were significantly lower in cases than in controls (P<0.05).
Large airway functions get diminished in untreated hypothyroidism, shown by FEF25-75%, FEF25%, and PEFR.
3), mientras que el FEF25-75% aumento de manera importante de 115.12% a 123.75 % del valor predicho para peso, estatura y sexo, no alcanzando la significancia estadistica (p= 0.176) (Fig.
The spirometric measures consisted of FVC, FEV1, FEF25-75%, MVV.
The FEV1 / FVC ratio, whereas it was found to increase in the mild smokers by 01% the FEF25-75% decreased in mild smokers by 5.39%.
(n=32) Age 29.20 [+ or -] 6.97 36.94 [+ or -] 5.49 *** Weight 56.54 [+ or -] 9.96 57.36 [+ or -] 9.68 Height 165.23 [+ or -] 6.48 162.74 [+ or -] 6.35 BMI 20.67 [+ or -] 3.25 21.62 [+ or -] 3.06 FVC 3.65 [+ or -] 0.78 3.26 [+ or -] 0.72 * FEV1 3.00 [+ or -] 0.70 2.85 [+ or -] 0.72 FEV1% 80.78 [+ or -] 11.22 83.93 [+ or -] 12.94 FEF200-1200 4.73 [+ or -] 1.91 4.51 [+ or -] 1.97 FEF25-75% 3.69 [+ or -] 1.61 3.42 [+ or -] 1.32 FEF75-85% 1.91 [+ or -] 0.84 1.63 [+ or -] 1.00 PEFR 486.67 [+ or -] 81.28 473.75 [+ or -] 75.68 Exposure 4.38 [+ or -] 2.65 16.16 [+ or -] 3.15 *** Duration of Exposure >20 yrs.
On the other hand, studies have shown that increasing waist hip ratio, which is a marker of thoracoabdominal obesity, has negative impact on FEV1, FVC, and FEF25-75%, and with every percentage increase in body fat the FEV1 and FVC may decline by 10 -15 mL [67, 79].
Thirty per cent of patients with a normal PEFR value had an abnormal [FEV.sub.1] or FEF25-75%. As air trapping increased, the ability of a normal PEFR to predict normal [FEV.sub.1] and [FEF.sub.25-75%] readings fell from 83% to 53%.
The use of the mid-expiratory flow (FEF25-75%) should be discouraged because of its high variability and high incidence of both false negatives and false positives [12].
Genome-wide interactions between cumulative PM10 exposure on annual decline in FEF25-75% in the discovery sample (n = 763) of the SAPALDIA cohort study.
The clinical significance of volume-adjusted maximal mid-expiratory flow (isovolume FEF25-75%) in assessing airway responsiveness to inhaled bronchodilator in asthmatics.