OBJECTIVE To highlight the importance of the lung ventilation scintigraphy (LVS) to study the regional distribution of lung ventilation and to describe most frequent abnormal patterns of lung ventilation distribution obtained by this technique in COPD and to compare the information obtained by LVS with the that obtained by traditional lung function tests. MATERIAL AND METHODS The research was...

welding is one of the key components of numerous manufacturing industries, which has potential physical and chemical health hazards. many components of welding fumes can potentially affect the lung function. this study investigates the effects of welding fumes on lung function and respiratory symptoms among welders of an automobile manufacturing plant in iran. this historical cohort study asses...

background the exposure to noxious agwents such as lead my cause lung disorders. objectives in the present study, pulmonary function tests and self-reported respiratory symptoms in lead exposure workers were compared with matched control subjects. materials and methods the frequency of respiratory symptoms were evaluated in a sample of 108 lead exposure workers and 100 control subjects with sim...

conclusions the prevalence of abnormal lfts in iranian morbid obese patients is in high status especially the level of alkp. liver ultrasonography has high sensitivity for the fatty liver in morbid obese patients but lfts rise only in few patients with fatty liver. background obesity, a major risk factor for fatty liver disease, is increasing worldwide. morbid obese patients have a higher preva...

background: occupational lead poisoning is common in workers of some industries, but lead hepatotoxicity has rarely been reported. several animal studies have revealed lead induced liver damage but clinical studies concerning the manifestations of lead induced liver toxicity in humans are scares. this study was designed to investigate the clinical manifestations and pathological parameters of h...

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Chest radiographs and pulmonary function tests are used as non-invasive techniques for the clinical management and guide to treatment in patients with diffuse interstitial pulmonary disease. The serial use of these tests may not give a true indication of the pathological activity of the disease process in the lung. Pulmonary function tests often remain abnormal despite inactivity of the patholo...

this study aimed to develop an index that can rank welding workplace that associate well with possible health risk of welders.welding fumes health index (wfhi) were developed based on data from case studies conducted in plant 1 and plant 2. personal sampling of welding fumes to assess the concentration of metal constituents along with series of lung function tests was conducted. fifteen metal c...