Lung functions exhibit a circadian rhythm. Peak Expiratory Flow Rate (PEFR) is an easily measured and reproducible parameter for measuring lung functions. Limited information available on the variations in south Indian adolescents. Hence, this study was undertakento evaluate diurnal variation of PEFR This longitudinal conducted among 30 adolescent girls age group 18-19 years recruited from host...

The current cross-sectional study with a comparison group was undertaken to investigate peak expiratory flow rate (PEFR) in flour mill workers and to study relationship between reduction in PEFR and age, smoking, exposure to grain dust and respiratory morbidity. The study included 286 flour mill workers and equal number of neighbourhood controls group-matched for age. PEFR was measured by using...

Records of peak expiratory flow rate (PEFR), commonly used in hospital in the management of asthma, have not been evaluated as a method of identifying cases of asthma in population surveys. Four observers were asked to report on whether asthma was present or absent in 61 graphs of PEFR recorded two hourly for four weeks during surveys of working population. Agreement within individual observers...

OBJECTIVES To investigate racial/ethnic differences in acute asthma among adults presenting to the emergency department (ED), and to determine whether observed differences are attributable to socioeconomic status (SES). DESIGN Prospective cohort studies performed during 1996 to 1998 by the Multicenter Airway Research Collaboration. Using a standardized protocol, researchers provided 24-h cove...

OBJECTIVE Asthma control has not been formally evaluated in the Caribbean. This study evaluated disease control on The Asthma Control Test (ACT), The Royal College of Physicians "Three questions" for Assessing Asthma Control (RCP), peak expiratory flow rate (PEFR) and patients' self-assessment of control. SUBJECTS AND METHODS Asthma control was examined in a cross-section of 205 asthmatics ab...

STUDY OBJECTIVES To determine the intracellular and extracellular Mg concentrations in patients with acute asthma and their correlation with parameters expressing the disease severity. PATIENTS Thirty patients with acute asthma (FEV(1), 56% predicted [SD, 14.5]), 20 patients with stable asthma (FEV(1), 97% predicted [SD, 10]), and 20 healthy subjects (FEV(1), 97% predicted [SD, 8]). METHODS...

OBJECTIVE Wheezing is a widely used physical sign of asthma that physicians assess in evaluation of their asthmatic patients. It may be possible to teach the parents to recognize it and to assess its severity so as to help them make better informed judgment in monitoring their children with asthma. STUDY DESIGN Parents were taught to recognize wheezing by placing their ear over the chest and ...

Salbutamol was given by the intramuscular route to children aged 3 to 16 years with an attack of asthma. Results with a dose of 8 microgram/kg were favourable but suggested that a higher dose might be more so. 16 children thereafter were treated with 20 microgram/kg which produced a greater mean increase in peak expiratory flow rates (PEFR) without increase in side effects. This dose was then u...

Peak expiratory flow (PEF) variability can be considered as an index of bronchial lability. Population studies on PEF variability are few. The purpose of the current paper is to describe the distribution of PEF variability in a random population sample of adults with a wide age range (20-70 yrs), and to assess relationships to age, gender and smoking habits. PEF data were collected in 511 parti...