Results 211 to 220 of about 30,898 (260)

A Curvilinear Nomogram of Peak Expiratory Flow Rate for the Young

Journal of Asthma, 2012
Peak expiratory flow rates (PEFRs) differ among populations and between times. The new EU scale of the mini-Wright flow-meter has been introduced since 2004. This study updated the PEFR nomograms with the new scale for Chinese children and adolescents (aged 6-19 years) in Hong Kong.A convenience sample was recruited from 34 primary care practices ...
Wun, YT, Kong, AYF, Wong, NM, Chan, MSH, Lam, TP   +4 more
openaire   +4 more sources

Peak expiratory flow rate and rate of change of pleural pressure

Respiration Physiology, 1973
Abstract It has been suggested that the sudden collapse of the large intrathoracic airways occurring at the onset of a forced expiratory manoeuvre produces an airflow contributing appreciably to the peak expiratory flow rate (PE/.VR). If so, one expects that PE/.VR will depend, not only on alveolar pressure, but also on the rate of change of pleural ...
J, Clément, M, Afschrift, J, Pardaens, K P, Van de Woestijne   +3 more
openaire   +2 more sources

Use of Peak Expiratory Flow Rates in Treating Patients

Archives of Pediatrics & Adolescent Medicine, 1986
Sir .—We found the article by Sly et al 1 to be very important. In a similar study that was carried out a few months ago in Greece, we checked the reliability of diary cards compared with peak expiratory flow rates (PEFR) measured at home by 33 asthmatic children aged 6 to 11 years (mean, 8.2 years).
J, Tsanakas, J G, Karpouzas
openaire   +2 more sources

Factors affecting the peak expiratory flow rate in children

British Journal of Diseases of the Chest, 1984
Standing height and peak expiratory flow rate (PEFR) were measured in 339 British schoolchildren aged 7-16 years. Enquiry was made into a past history of wheeze or atopy, a family history of asthma or atopy, or a cold within the preceding 2 weeks. A strong correlation was found between PEFR and height, expressed by the equation PEFR = 5.640 Ht - 472.5 (
R A, Primhak, J D, Biggins, J N, Tsanakas, A, Hatzimichael, R D, Milner, J G, Karpouzas   +5 more
openaire   +2 more sources

The forced expiratory volume and the peak expiratory flow rate in pneumoconiosis

British Journal of Diseases of the Chest, 1966
Summary One hundred and sixty men with coal-miner's pneumoconiosis were studied in two groups to ascertain whether a good correlation existed between the F.E.V. 1 and the P.E.F.R. The first group consisted of 100 miners without chronic bronchitis and the second of 60 miners with chronic bronchitis. Correlation was good in both groups.
openaire   +2 more sources

Peak Expiratory Flow Rates in Possible Occupational Asthma

Chest, 1991
Objective criteria for interpretation of peak expiratory flow rate readings were assessed in 50 patients evaluated for suspected occupational asthma who had at least two weeks of PEFR readings and an objective diagnosis based on other investigations. The prevalence of OA was 36 percent.
G M, Liss, S M, Tarlo
openaire   +2 more sources

Definition of Respiratory Sarcopenia With Peak Expiratory Flow Rate

Journal of the American Medical Directors Association, 2019
Respiratory muscle strength decreases with advancing age, and respiratory muscle dysfunction may indicate respiratory sarcopenia. However, there is no consensus regarding the definition of respiratory sarcopenia. We aimed to create a definition of respiratory sarcopenia based on the peak expiratory flow rate (PEFR).Cross-sectional study.Community-based
Takeshi Kera, Hisashi Kawai, Hirohiko Hirano, Motonaga Kojima, Yutaka Watanabe, Keiko Motokawa, Yoshinori Fujiwara, Kazushige Ihara, Hunkyung Kim, Shuichi Obuchi   +9 more
openaire   +2 more sources

The effect of dialyzer reuse on peak expiratory flow rate

Respiratory Medicine, 1990
Peak expiratory flow rates were measured during routine haemodialysis in 18 patients with chronic renal failure who were in receipt of thrice weekly haemodialysis treatment, using both a new cuprophan dialyzer and then the same dialyzer after reprocessing. Acetate buffered dialysate was used on both occasions. The peak expiratory flow rates fell by 10 +
A, Davenport, A J, Williams
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Diurnal variation of peak expiratory flow rate in asthmatic children

Pediatric Pulmonology, 1986
AbstractA diurnal variation in peak expiratory flow rate (PEFR) has been described in normal and asthmatic adults. This variation has been apparent in data reported from children, but the rhythm has not been characterized. Sixty‐eight asthmatic children recorded PEFR three times a day for 4 weeks at home.
Sly, PD, Hibbert, ME, Landau, LI
openaire   +5 more sources

Home Recording of Peak Expiratory Flow Rates and Perception of Asthma

Archives of Pediatrics & Adolescent Medicine, 1985
Fourteen asthmatic children, aged 7.9 to 18.0 years (mean, 11.3 years), recorded peak expiratory flow rates three times a day at home for four weeks in an attempt to improve perception of their airway obstruction. Pulmonary function tests were performed and a subjective severity score was recorded before and after this period.
Sly, P.D., Landau, L.I., Weymouth, R.
openaire   +5 more sources