introduction: in developing countries, chronic otitis media (com) and cholesteatoma are relatively prevalent.  within the field of otology, com surgery remains one of the most common surgical treatments. most recent studies evaluating the potential prognostic factors in com surgery have addressed graft success rate and types of middle ear and mastoid pathology. there has been much controversy a...

purpose: to determine bacterial contamination of corneas and corneal storage media provided from the eye bank of i.r. iran to rasool akram medical center. methods: this descriptive study was performed on 70 corneoscleral rims and corneal storage media. one milliliter of corneal storage media and the corneoscleral rim were sent to microbiology laboratory at the time of penetrating keratoplasty a...

background: otitis media with effusion (ome) is a common disease in children. viral or bacterial infections, allergy, adenoids, functional abnormalities of the eustachian tube, and gastroesophageal reflux might have a possible role in the pathogenesis of ome. however, the exact pathogenesis of ome is still unsettled. objectives: the purpose of this study was to compare helicobacter pylori preva...

conclusion spiral-ct scan is superior to conventional ct in the diagnosis of lesions in com before operation. it can be used for detailed evaluation of ossicular chain in such patients. objectives this study was performed to compare the findings of three-dimensional reconstructed spiral and conventional ct scan of ossicular chain study in patients with com. patients and methods fifty patients e...

background: the ministry of health and medical education of iran and many other countries advice physicians to use this guideline for diagnosis and treatment of acute otitis media (aom), but there is not any evaluation of effectiveness and obedience of this guideline, so the aim of this study was to evaluate the attitude of pediatricians, the most important group that interfere with these patie...

background: scuba divers work in high pressure conditions which may cause some changes in physiological status to adapt to this situation. in this study, the carotid intima-media thickness (cimt) was assessed in divers as a risk factor of cerebrovascular and cardiovascular disorders. methods: this historical cohort study was performed on 16 male professional scuba divers as case group and 30 he...

conclusions in conclusion, in spite of usually benign features, chronic otitis media may lead to serious complications such as brain abscess. every effort should be made for microbiological diagnosis of the causative pathogen(s) for appropriate antibiotic treatment. introduction brain abscess is a rare life-threatening focal intracerebral infection. the etiology of brain abscess depends on trau...

this study compared the use of interpersonal and mass media channels of communication among rural farmers in kogi state, nigeria. the specific objectives were to describe the socio economic characteristics of the farmers, determine the influence of socioeconomic characteristics on the usage of interpersonal and media channels, ascertain farmers’ level of awareness of interpersonal and media cha...

this commentary explores the implications of increased social media marketing by drug manufacturers, based on findings in hyosun kim’s article of the major themes in recent food and drug administration (fda) warning letters and notices of violation regarding online direct-to-consumer promotions of pharmaceuticals. kim’s rigorous analysis of fda letters over a 10-year span highlights a relative ...

the ultra-nanocrystalline diamond (uncd) was synthesized by the detonation of a high explosive mixture in water confinement. the presence of a diamond phase was revealed by x-ray diffraction (xrd) and transmission electron microscopy (tem). x-ray line broadening (xrlb) was used to evaluate the peak profiles of diamond nanoparticles and their corresponding average crystallite sizes. the micro st...