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Biomedical subjects

A Cukier

Publications and source records attributed to A Cukier.

50 records · Page 3Linked to original sources
PubMedDate not supplied

[Forced mid-expiratory flow rate (FEF 25-75%): a critical analysis of its value in recognizing diseases of the small airways].

A total of 245 patients submitted to lung function test were studied. They were divided in 2 groups: A--FEV1.0/FVC greater than or equal to 75% and B--FEF25-75% less than 75%. These groups were further subdivided according to the age of the patients--subgroup 1 less than or equal to 50 years and subgroup 2 greater than 50 years. Patients with restrictive disorders were not included. The spirometric equipment employed was Hewlett-Packard Inc. Pulmonary Function Analyzer 47402-A. The results were obtained through a digital system and calculated from a graph impressed in a xy register. Results were automatically corrected to BTPS. In each group FVC and FEV1.0 were normal. In group A FVC and FEV1.0 were, respectively: A1-99.63 +/- 13.33 and 101.11 +/- 12.24, A2-97.60 +/- 11.06 and 98.81 +/- 12.18, expressed as percentage of predicted values. In group B the results were: B1-97.61 +/- 13.55% and 81.71 +/- 14.44%; B2-100.28 +/- 13.98% and 83.10 +/- 16.42%. The differences were not statistically significant at 5%. In subgroup A1 X FEV1.0/CVF was 83.41 +/- 5.63% and in subgroup A2, 79.42 +/- 4.23%. Maximum mid-expiratory flow rate was 88.64 +/- 24.39% in subgroup A1 and 65.26 +/- 17.88% in subgroup A2. These differences were statistically significant at 1%. In group B, FEV1.0/FVC was always less than 75%. In subgroup B1 it was 68.24 +/- 10.43% and in B2, 64.90 +/- 10.43% and values for FEF25-75% were 48.13 +/- 16.48% and 42.79 +/- 17.68%, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMedDate not supplied

[Maximum expiratory flow rate (peak flow) in healthy persons and patients with bronchial asthma].

Lung function tests were done on 42 patients, 22 asthmatics and 20 normal volunteers. The peak flow and expiratory flows at different levels of the forced vital capacity curve were evaluated. The flow-volume curves were obtained with a conventional spirometer, and the peak flow was determined with a Wright flowmeter. The peak flow obtained by the two methods were within the normal range, although the values registered by the Wright flowmeter were consistently lower. A reduction of the expiratory flow in the distal part of the vital capacity curve was observed in asthmatics, suggesting small airways obstruction. In conclusion, peak flow is not of use in the detection of predominantly distal airways obstruction.

Adult↗