background: nasal intermittent positive pressure ventilation (nippv) is a non-invasive ventilatory mode, which delivers mechanical ventilation via nasal tubes or prongs. the present study was conducted to compare the efficacy of nippv and nasal continuous positive airway pressure ventilation (ncpap) in reducing the need for intubation in preterm infants with respiratory distress syndrome (rds)....

background: ketamine is the only anesthetic agent that leads to an increase of blood pressure and heart rate by activation of sympathetic nervous system. however, there is a controversy about this effect of ketamine especially if used in small dosage. we proposed to evaluate the hemodynamic effect of small dose of ketamine during phacoemulsification. methods: one hundred patients of asa physica...

introduction: obesity is an independent risk factor in developing cvd, type ii diabetes, and gall bladder disease, different types of cancers, osteoarthritis and mortality. weight gain during adult life, especially during the third and fourth decades, is associated with increased blood pressure. methods: random samples of nearly 1493 men and women aged between 16 to 85 years old were selected f...

improvements in science and technology and the use of modern machinery in manufacture have led to increase in the number of workers exposed to hazardous agents including noise. this study evaluated the effects of occupational noise on hearing loss and blood pressure in welders after 4 years.in this cohort study, all of the welders working at one of neyshabur's water heater producing factories w...

purpose: to compare intraocular pressure (iop) readings measured by the ocular response analyzer (ora) with those measured by the goldmann applanation tonometer (gat) in keratoconic eyes following penetrating keratoplasty (pkp) and to evaluate the influence of anatomical and biomechanical properties of the grafts on iop measurements. methods: this cross-sectional study was conducted on 45 kerat...

traumatic brain injury is a leading cause of disability and death from injury in the world. the interleukin-1 (il-1) is a family of cytokines that act as key mediators of the inflammatory response peripherally and centrally. based on many studies, researchers found that the il-1 is the well-known molecule in relation to acute tbi in the models of both focal and diffuse injuries. the il-1 family...

background: health benefits of vitamin d has been proved by a large number of studies, however, to the best of our knowledge there has been no study investigating the effect of mega dose of vitamin d on gestational diabetes mellitus (gdm). this study was the first to assess the effect of postpartum injection of mega dose of vitamin d on blood pressure (bp) in gdm. methods: this is a randomized ...

objectives this study aimed to assess the prevalence and outcome of undiagnosed hypertensive patients admitted to the emergency department. materials and methods this cross-sectional study was conducted from march 2009 to march 2010 at imam hossein medical and educational center, teheran, iran. a total of 2070 patients aged 18 years and older were admitted to the emergency department without pr...