background: reintubation in patients after cardiac surgery is associated with undesirable consequences. the purpose of the present study was to identify variables that could predict reintubation necessity in this group of patients. methods: w e performed a prospective study in 1000 consecutive adult patients undergoing cardiac surgery with cardiopulmonary bypass. the patients who required reint...

objective(s): menopause and diabetes obviously increase the risk of cardiovascular disease in women. the aims of the present study were to evaluate the effects of ovariectomy in type 2 diabetes on the histology and expression of mirna-29, mirna-133, igf-1 and bcl-2 genes and bcl-2 protein and caspase 3 activity in the hearts of female rats. materials and methods: forty female wistar rats were d...

abstract background: aprotinin has been used increasingly to reduce postoperative blood loss in open-heart operations due to the potentialities for complications and high cost, it would seem reasonable to use aprotinin more selectively in small doses in the prime solution of the pump. methods: we prospectively studied the effect of preoperative low dose aprotinin [2 million units (230mg)] on bl...

the most frequent congenital heart defects in the neonatal period are ventricular septal defects. ventricular septal aneurysms can rarely develop from an interventricular septal (ivs) defect in adults. we describe a 47-year-old man with an aneurysm in the ivs growing towards the right ventricle, which was confirmed by cardiac computed tomographic angiography and was missed by echocardiography.

from march 1990 to may 1993,309 patients underwent redo cardiac surgery operation at the shahid rajai heart hospital in tehran. early mortality rates in these patients showed a significant increase in comparison to patients undergoing open heart surgery for the first time. late mortality (at least one month after surgery) in the patients was slightly increased also but less than early mortality...

Introduction: The primary somatosensory cortex has an important role in nociceptive sensory-discriminative processing. Altered peripheral inputs produced by deafferentation or by long-term changes in levels of afferent stimulation can result in plasticity of cortex. Capsaicin-induced depletion of C-fiber afferents results in plasticity of the somatosensory system. Plasticity includes short-term...

Reelin is an extracellular matrix neuroprotein which plays important roles during development and maturation of cerebellum. In the postnatal cerebellum, Reelin is synthesized by cerebellar granule cells and secreted to extracellular matrix. This secreted protein modulates adult synaptic function, neurotransmitter release and regulates plasticity. Exercise has beneficial effects on central nervo...

Hysteresis loop curves are highly important for numerical simulations of materials deformation under cyclic loadings. The models mainly take account of only the tensile half of the stabilized cycle in hysteresis loop for identification of the constants which don’t vary with accumulation of plastic strain and strain range of the hysteresis loop. This approach may be quite erroneous particularly ...

a 67-year-old male suffering from depressive symptomatology was admitted to the inpatient clinic at firat university school of medicine; and his psychiatric evaluation revealed major depressive episode according to dsm-iv. he developed chest discomfort, chest pain and shortness of breath of acute onset accompanying pulseless ventricular tachycardia (vt) leading to cardiac arrest following sertr...