Introduction: Multiple and sometimes contradictory evidence exists on the relationship between dust exposure and respiratory symptoms with pulmonary disorders. The study was conducted to examine the effects of chronic exposure to street dust on the pulmonary parameters and respiratory complaints in sweepers. Methods: This cross-sectional study was conducted on 100 sweepers working in district ...

We performed pulmonary function test to document bronchodilator response by using tidal breathing flow volume loop (TBFVL), rapid thoracic compression (RTC), and raised volume rapid thoracic compression (RVRTC) techniques. Thirty-nine children (mean age 45.2 months) were evaluated. The parameters that showed significant improvement after bronchodilator administration included TEF10/ PTEF ratio ...

Aerosolized fenoterol in a dosage of 400 g was compared to Isoproterenol 150 g in 31 asthmatic subjects during the course of a double-blind parallel 90-day study. Bronchodilator activities of the two drugs were evaluated for up to 6 hours on days 1, 45 and 90. Analysis of the data revealed that fenoterol consistently produced a significantly greater increase in FEy1, FEF25-75% and Gaw/YL. Speci...

The pulmonary status of 178 asymptomatic asthmatic children with normal time-volume spirograms was further evaluated using flow-volume loops, body plethysmographic studies, and blood gas tensions in arterialized capillary blood. Residual volume (RV) was abnormal in 26 percent, total lung capacity (TLC) in 33 percent, RV/TLC % in 41 percent, and arterial oxygen pressure in 23 percent of them. Al...