purpose: to compare the clinical outcomes following deep anterior lamellar keratoplasty (dalk) for keratoconic patients with vernal keratoconjunctivitis (vkc) and without vkc. methods: in this retrospective comparative study, the records for 262 eyes with keratoconus only (group 1) and 28 keratoconic eyes with vkc (group 2) that underwent dalk were complied. the parameters reviewed included the...

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...

peritoneal dialysis is an established form of renal replacement therapy used in many patients with end-stage renal disease. the key to a successful chronic peritoneal dialysis is a permanent and safe access to the peritoneal cavity. this study was conducted in order to evaluate the catheter survival and its related factors in imam khomeini hospital. a total of 80 catheters were inserted into 69...

gastric cancer is the most prevalent cancer among men and the third most prevalent cancer among women in iran. its most important reason for death is its belated diagnosis at the advanced stages of the disease. various factors can be effective on the survival of these patients after surgery, which are the major concern in this study.data from 330 patients with gastric cancer who had undergone s...

conclusions it was observed that the success and survival rate of maxillary molar immediate implant was relatively high and similar to those of conventional delayed implants. results immediate implants were most frequently used for incisor and premolar sites and there is very little data available on immediate implantation in the molar area. in this research, we reviewed all the existing papers...

background : stomach cancer is one of the most common malignancies worldwide. in iran, the mortality of stomach cancer is the first cause of death due to cancer in both sexes. this study was designed to estimate survival rate of stomach cancer at national level. methods : from the national cancer registry file, 3439 cases of stomach cancer that had telephone number and were diagnosed between ye...

introduction: insome cases, assist devices are required to ensure an adequate cardiac output after cardiac surgery. intra-aortic balloon pump (iabp) is the most commonly used cardiac assist device, which provides first-line support for patients with heart failure. the aim of this study was to determine factors affecting the mortality rate of patients receiving iabp. materials & methods:  in thi...

background budd-chiari syndrome (bcs) is defined as hepatic venous outflow obstruction (hvoo). bcs is an uncommon, life-threatening liver disorder. this study describes the clinical and etiological characteristics in addition to the long-term outcome of bcs in a single referral center in tehran, iran. methods we reviewed long-term outcome of patients who were diagnosed with bcs between 1989 and...