hearing loss (hl) is the most common communication disorder affecting about 1/1000 births worldwide caused by environmental or genetic factors. about 30-50% is attributed to genetic factors and till now more than 85 genes have been implicated in non-syndromic hl. in iran, hl is second to intellectual disability as the most common disability, affecting 1 of every 166 persons. about 15 years ago ...

objective: obesity is a worldwide health problem, with increasing prevalence associated with an increased risk of chronic diseases. decrease in energy intake has been shown to lower the risk of coronary artery disease (cad) in obese. the common form of dietary restriction is daily calorie restriction (cr). another form is alternate-day fasting (adf). the ability of modified adf to facilitate we...

introduction: in order to achieve a higher success rate for tympanoplasty, different techniques have been developed, and a wide variety of grafting materials have been developed. one of the techniques currently receiving considerable attention involves not lifting the remaining of eardrum from the malleus and embedding the graft underneath in order to repair the eardrum correctly in its origina...

purpose: to assess the short-term effect of mitomycin-c (mmc) 0.02% on endothelial cell density and morphology after photorefractive keratectomy (prk) in patients with moderate myopia. methods: forty-two eyes of 21 participants with moderate myopia (range, -4.0 to -8.0 d) underwent prk with mmc 0.02% for 40 seconds. specular microscopy was performed preoperatively and repeated 6 months after su...

original article   extended exposure to noise can cause permanent hearing damage. this study aimed to determine the incidence time of hearing loss and its effective factors in workers exposed to noise. this retrospective cohort study, was conducted on a total of 273 workers in various sectors of kerman copper by-industries co. their hearing status and the incidence of hearing loss (hearing thre...

background:proximal femoral shaft fractures are commonly associated with marked blood loss which can lead topostoperative acute anemia and some other complications.tranexamic acid (ta) is an antifibrinolytic medication that reduces intra-and postoperative blood loss and transfusionrequirements during some elective surgeries (1-3).the aim of this study is to evaluate the effect of intravenous tr...

background and aim: the elderly afflicted with hearing loss experience the consequent problems of falling and imbalance. some rea­sons have been reported for the relationship between hearing loss and imbalance. however, a large part of the population of the elderly does not experience hearing assessments and if such assessments are done, the right rehabilitation services are not offered. this s...