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Spirometry Measurements (spirometry + measurement)
Selected AbstractsA prospective study of lung function among boilermaker construction workers exposed to combustion particulatesAMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 5 2001Russ Hauser MD Abstract Background Given the evidence of both acute cross-shift and short-term decrements in lung function in boilermaker construction workers following occupational exposure to combustion particulates, we sought to determine whether exposure is associated with an annual loss in lung function. Methods As part of an ongoing investigation, we conducted a 2-year longitudinal study of lung function among 118 boilermakers. Exposure was assessed with a work history questionnaire. Spirometry measurements were performed annually. Results We found an association between annual FEV1 and hours worked at a gas-fired plant during the previous year, ,,=,,,9.8 mls/100 hours worked (95% CI: ,,16.0, ,,3.5) after adjustment for age, baseline FEV1 and cigarette smoking status. The adjusted association between FEV1 and "ever" worked at a gas-fired plant was ,,,99.7 mls (95% CI: ,,154.8, ,,44.5). There was also evidence of a negative association between FEV1 and "ever" worked and hours worked at oil and coal-fired plants. Conclusions These data suggest an association between annual lung function loss and working at gas, coal and oil-fired plants. Further follow-up of this cohort of boilermakers is in progress. Am. J. Ind. Med. 39:454,462, 2001. © 2001 Wiley-Liss, Inc. [source] The BreathmobileÔ: A Novel Comprehensive School-Based Mobile Asthma Care Clinic for Urban Underprivileged ChildrenJOURNAL OF SCHOOL HEALTH, Issue 6 2006Otto Liao Many school-based programs have been funded to improve asthma management, especially for these "high-risk" inner-city children with asthma. Here we report the outcomes of the Children's Hospital of Orange County Breathmobile program, which is a school-based asthma program that combines the use of a mobile clinic and a pediatric asthma specialist. Baseline evaluations included a detailed history and physical, skin prick test to common allergens, spirometry measurements, and asthma severity classification based on the current National Asthma Education and Prevention Program guidelines. From April 2002 to September 2005, a total of 1321 children were evaluated for asthma. Analysis of the 1112 (84%) children diagnosed with asthma showed a population mean age of 7.8 years, 81% Latino ethnicity, and 73% with persistent disease. At baseline, only 24% of children with persistent asthma were on daily anti-inflammatory medications, which increased to 78% by the first follow-up visit. In the year prior to entry into the program, 64% had school absenteeism related to asthma (38% >10 days), 45% had emergency room (ER) visits (28% >1), and 19% had hospitalizations (9% >1). There was a significant reduction (p < .001) in the annual rates of ER visits, hospitalizations, and school absenteeism when comparing pre- and postentry into the program. These data suggest that a mobile asthma van clinic at the school site with an asthma specialist could be an effective model in reducing morbidity in the underserved child with asthma. Further studies are necessary to determine whether this model is applicable to other inner-city settings. (J Sch Health. 2006;76(6):313-319) [source] Effect of prenatal exposure to fine particulate matter on ventilatory lung function of preschool children of non-smoking mothersPAEDIATRIC & PERINATAL EPIDEMIOLOGY, Issue 5 2010Wieslaw A. Jedrychowski Summary Jedrychowski WA, Perera FP, Maugeri U, Mroz E, Klimaszewska-Rembiasz M, Flak E, Edwards S, Spengler JD. Effect of prenatal exposure to fine particulate matter on ventilatory lung function of preschool children of non-smoking mothers. Paediatric and Perinatal Epidemiology 2010. Impaired fetal development is associated with a number of adult chronic diseases and it is believed that these associations arise as a result of the phenomenon of prenatal programming, which involves persisting changes in structure and function of various body organs caused by ambient factors during critical and vulnerable periods of early development. The main goal of the study was to assess the association between lung function in early childhood and prenatal exposure to fine particulate matter (PM2.5), which represents a wide range of chemical compounds potentially hazardous for fetal development. Among pregnant women recruited prenatally to the study, personal measurements of PM2.5 were performed over 48 h in the second trimester of pregnancy. After delivery, infants were followed for 5 years; the interviewers visited participants in their homes to record children's respiratory symptoms every 3 months in the child's first 2 years of life and every 6 months thereafter. In the fifth year of the follow-up, children were invited for standard lung function testing of levels of forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1) and forced expiratory volume in 0.5 s (FEV0.5). There were 176 children of non-smoking mothers, who performed at least two acceptable spirometry measurements. Multivariable linear regression showed a significant deficit of FVC at the highest quartile of PM2.5 exposure (beta coefficient = ,91.9, P = 0.008), after adjustment for covariates (age, gender, birthweight, height and wheezing). Also FEV1 level in children was inversely correlated with prenatal exposure to PM2.5, and the average FEV1 deficit amounted to 87.7 mL (P = 0.008) at the higher level of exposure. Although the effect of PM2.5 exposure on FEV0.5 was proportionally weaker (,72.7, P = 0.026), it was also statistically significant. The lung function level was inversely and significantly associated with the wheezing recorded over the follow-up. The findings showed that significant lung function deficits in early childhood are associated with prenatal exposure to fine particulate matter, which may affect fetal lung growth. [source] Growth of lung function in children with sickle cell anemiaPEDIATRIC PULMONOLOGY, Issue 11 2008Joshua J. Field MD Abstract Lung disease is a common cause of morbidity among children with sickle cell disease (SCD). Although cross-sectional studies of children with SCD describe abnormal pulmonary function, the pattern of lung function growth in these children compared to children in the general population is not known. To provide preliminary evidence that growth of lung function is attenuated in children with SCD, we conducted a retrospective cohort study of children with hemoglobin SS (HbSS) ages 6,19 years who received at least two spirometry assessments for clinical care. The growth of lung function in these cases was compared to age, gender, and race-specific children without SCD or respiratory complaints from the Harvard Six Cities Study (H6CS). Seventy-nine children with HbSS contributed 363 spirometry measurements (mean per child,=,4.6, median,=,4.0, range,=,2,17) and 255 controls contributed 1,543 spirometry measurements (mean per child,=,6.1, median,=,6.0, range,=,2,13). Longitudinal forced expiratory volume in 1 sec (FEV1) was lower for boys and girls with HbSS compared to children in the general population, P,=,0.031 and P,=,0.002, respectively. When compared to the H6CS cohort, girls with HbSS showed lower longitudinal forced vital capacity (FVC) (P,<,0.001) and FEV1/FVC (0.038); there was no difference in FVC or FEV1/FVC between boys in the HbSS and H6CS cohort. We conclude that growth of lung function is reduced in children with HbSS compared to children in the general population. Gender may influence the risk of developing abnormal lung function and airway obstruction in children with HbSS. Pediatr Pulmonol. 2008; 43:1061,1066. © 2008 Wiley-Liss, Inc. [source] | ||||||||||