BACKGROUND Aim of this work was to assess loco-regional disease control in head and neck cancer (HNC) patients treated with postoperative intensity modulated radiation therapy (pIMRT). For comparative purposes, risk features of our series have been analysed with respect to histopathologic adverse factors. Results were compared with an own historic conventional radiation (3DCRT) series, and with...

Aortic stenosis is the most common valvular lesion in Europe and North America [2]. As incidence of acute rheumatic fever has declined, calcific aortic stenosis (CAS) has become the most common indication for surgical valve replacement in the United States (Fig. 2) [3]. Regarding population aged>65 years, its incidence is 2-7% [2]. Interestingly, aortic sclerosis (aortic valve calcification wit...

BACKGROUND Over the past 10 to 15 years, calcific aortic valve disease, which includes aortic sclerosis and aortic stenosis, has come to be recognized as an active process, based on: (1) epidemiologic studies demonstrating associations of specific risk factors with increased prevalence or rate of progression of aortic valve disease; (2) identification, in valve lesions, of histopathologic featu...

bacterial meningitis is still the leading cause of high morbidity and mortality among the children. the present study was conducted to determine the epidemiology, clinical characteristics of bacterial meningitis and to evaluate the risk factors associated with developing the infection.this cross sectional study was conducted in three hospitals of gaza strip -palestine during the period 2009. al...

background: patients with hereditary bleeding disorders are at risk of viral infection such as hepatitis c due to frequent transfusion of blood and blood products. this study aimed to determine the prevalence of hepatitis c and associated risk factors in hemophilic patients in isfahan, the second big province in iran. methods: in a descriptive study, patients with hemophilia in isfahan province...

background: prevalence of fall-related mortality is rising in the elderly population. falling is one of the causes of the murderous and non-murderous injuries in the elderly population which can lead to disability, dependence and decline of quality of life. fractures constitute a major part of the fall-related injuries. the present study is designed to investigate the prevalence of fall-related...

conclusions in the region under study the prevalence of tb among the prisoners was higher than the general population. the main risk factors for pulmonary tb in this population were close contact, idu and hiv infection. results from the reported 4562 patients with tuberculosis, 363 (7.9%) were prison inmates at the time of tb diagnosis. prevalence of tb cases among the prison inmates was 403.3 ...

results in this study, 57.8% males and 42.2% females participated, while the mean age of the patients was 68.46 years old, and the mean age of the healthy individuals was 59.79 years old. the findings of this study showed a family history of cancer, anemia, and smoking, and associations with education, occupation, socioeconomic status, blood group, consumption of hot drinks, as well as a histor...

background nephrolithiasis is a widespread multifactorial disorder. constitutional, environmental and genetic factors play a role in stone formation. although important advances have been made in understanding the pathophysiology of stone formation, none of the many theories have given a satisfactory explanation of this process. objectives the objective of study was to evaluate the probable rel...

background: bakers, due to the nature of their jobs, are at risk of musculoskeletal disorders (msds) caused by ergonomic factors. the purpose of this study was to evaluate the biomechanical risk factors for msds in bakers. materials and methods: in the current study, all sangak, taftoon, and lavash bread bakeries in gonabad, iran, were selected based on census method. then, hierarchical task an...