prolonged cough occurs in a large proportion of the 2 million pilgrims who participate in the annual hajj in saudi arabia. there is no unique cause for pilgrims’ respiratory involvement, but several studies suggest a high incidence of influenza as a cause of the disease. to determine influenza vaccine efficacy against respiratory disease in pilgrims, we conducted two similar cohort studies on 5...

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objective(s): in positron emission tomography (pet) studies, thoracic movement under free-breathing conditions is a cause of image degradation. respiratory gating (rg) is commonly used to solve this problem. two different methods, i.e., phase-gating (pg) and amplitude-gating (ag) pet, are available for respiratory gating. it is important to know the strengths and weaknesses of both methods when...

the emergency severity index (esi) is a five-level triage system that has shown promising reliability and validity. according to esi algorithm, in the presence of danger zone respiratory rate (rr), heart rate (hr) or oxygen (o2) saturation, patients should be up-triaged from esi level 3 to 2 hence, the current study aimed to investigate the value of the measurement of vital signs in predicting ...

acute respiratory distress syndrome (ards) is a potential complication of cardiac surgery, given that patients undergoing cabg frequently have hypoxemia and pulmonary dysfunction during initial hours after surgery. thus, ards criteria in these patients are more likely to be positive while these criteria may not match the patient`s clinical picture. we aimed to investigate frequency of rapid ons...

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 : this research provides an insight into exposure information and particle size distributions of bisphenol a (bpa), a common environmental hormone, at polycarbonate (pc) molding plants in southern taiwan. methods : the inhalable dust sampler as iom and the micro-orifice uniform deposition impactor (moudi) were used for samples collection to evaluate the level and particle size distri...

background: sulfur mustard (sm) as a chemical warfare agent, increases permeability of bronchial vessels and damages airway epithelium. sm exposure causes debilitating respiratory complications. this study was designed to evaluate clinical respiratory manifestations, and to compare chest x ray (cxr) and high resolution computed tomography (hrct) scan of chest in sm exposed patients with respira...

the case is 43 years old woman referred to emergency department of our hospital with quadriplegia and severe respiratory insufficiency due to c5-c6 injury after falling. she discharged from icu after fixation of the lesion and successful weaning. we evaluated electrical activity of diaphragm signal (edi), respiratory drive (p100) during one month period. we detected increase in level of electri...

To estimate the bacterio-epidemiological situation of childhood respiratory tuberculosis in Iran, 2185 symptomatic patients of 0-14 years old were studied. Among 110 bacteriologically confirmed cases, 60% were less than five years old and the number of females was slightly more than males. In 21 % of patients, the Mantoux test was negative. None of the miliary cases had a history of BCG va...