background: the incidence of restenosis in patients suffering from coronary artery disease after undergoing angioplasty is of paramount importance. accordingly, this study aimed to investigate factors affecting the time of the first incidence of restenosis in patients undergone angioplasty in the city of zanjan, iran.   methods: this retrospective cohort study was conducted on 421 patients who ...

conclusions the stereotactic brachytherapy for patients with circumscribed and relatively small size tumors appears to be a safe, feasible, and minimally-invasive treatment. results thirteen patients were male and 16 were female, with the median age of 29 years (range, 2.5 – 64 years). the median follow-up was 95 (range, 6 – 240) months. based on pignatti classification, 10 patients were at low...

carcinoid tumors of the bile duct are rare. despite cholangiocarcinoma, they grow more slowly and generally occur in younger patients and females. these tumors have a better prognosis and more disease-free survival. we present the case of a 25-year- old male with common bile duct (cbd) carcinoid tumor misdiagnosed as cholangiocarcinoma.

Cardiovascular risk prediction functions offer an important diagnostic tool for clinicians and patients themselves. They are usually constructed with the use of parametric or semi-parametric survival regression models. It is essential to be able to evaluate the performance of these models, preferably with summaries that offer natural and intuitive interpretations. The concept of discrimination,...

background and objective: concurrent chemoradiotherapy (ebrt + cisplatin) plus intracavitary brachytherapy is the standard of care in patients with advanced cervical cancer. however, some patients are unable to undergo brachytherapy due to massive residual tumor or anatomical distortion. in this study, we evaluated the treatment outcome in patients with locally advanced cervical cancer undergoi...

background ewing’s sarcoma family is a group of small round cells tumors. the aim of this study is to evaluate clinicopathologic characteristics and outcome of ewing’s sarcoma in children and adolescents in yazd, iran. materials and methods all patients under 19 years with documented pathology of ewing’s sarcoma family tumor who referred to shahid ramazanzadeh radiotherapy center between 2002 t...

background : this prospective study assessed the efficacy of neoadjuvant and adjuvant chemotherapy on patients with high risk soft tissue sarcomasof the extremities. methods : enrolled patients received the following neoadjuvant chemotherapy: doxorubicin (75 mg/m2) on day1, ifosfamide (2.5 g/m2/d) and mesna (20% of the ifosfamide dose) from days1 to 3, repeated every three weeks for a total of ...

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...