buthotus schach is one of the dangers scorpion in iran that belong to the buthidae family. toxins are existing in venom scorpion, modulate the ion channels by blocking or opening the pore of the channel or by altering the voltage gating and useful as pharmacological tools. in the present study, we investigated the effect of venom and its obtained fractions by gel filtrations on electrophysiolog...

PERATIVE treatments of uncomplicated patent ductus arteriosus are now well established, and the ductus can be safely and effectively divided in vast majority of children and young adults. In certain older patients, however, calcification of the ductus and the adjacent segments of aorta and pulmonary artery offers some technical difficulties. Under this circumstance, division of the ductus is un...

we report the case of a three-year-old girl who complained from dysphagia and post-prandial vomiting since she was 6months old. several diagnostic work-ups were performed for her problem. upper gi endoscopy was normal but barium swallow revealed an external pressure effect over upper part of the esophagus (figure 1) and the ct angiography of thoracic aorta showed that this external pressure eff...

Here we demonstrate our surgical procedure of minimally invasive aortic valve replacement through right anterolateral mini-thoracotomy. Preoperative evaluation of the whole aorta by contrast-enhanced computed tomography scan is important to prevent cerebrovascular complications. The patient is set in a mild left lateral decubitus position. A skin incision is made along the anterior axillary lin...

BACKGROUND Intra-aortic balloon pump (IABP) is the most widely used mechanical assist device for hemodynamic support in high risk patients undergoing cardiac surgery. The aim of our study was to confirm whether transaortic route is a suitable alternative to allow IABP insertion in patients with severe aortoiliac diseases. METHODS This study included 7 consecutive patients undergoing coronary ...

Ion channels are responsible for control of cell function in excitable tissues such as heart and brain and also in organs and tissues traditionally thought to be non- excitable including liver and epithelium. In the present research, the effect of lead (Pb2+) on Ca2+ -dependent action potential and currents was studied in F77 neuronal soma membrane of Helix aspersa. For this purpose, action pot...

B lunt traumatic rupture of the thoracic aorta usually occurs at the isthmus and is a life-threatening surgical emergency. Blunt traumatic rupture lesions are usually the result of a violent motor vehicle accident and are frequently associated with other life-threatening traumatic injuries (ie, pulmonary contusions, head injuries, fractures, injuries of the solid organs); thus, 80% of the subje...

INTRODUCTION Surgical repair of an aortic aneurysm might be complicated by spinal cord injury and paraplegia. Since β-adrenoreceptor agonists showed neuroprotective effects, the study was designed to investigate the effect of clenbuterol on post-aortic clamping paraplegia and to identify if there is hyperemia associated with paraplegia. MATERIAL AND METHODS MATERIAL AND METHODS Thirty rabb...

out ascending bifemoral reconstruction in order to bypass the peritoneal cavity as described by R. J. Baird. In both cases, the femoral arteries were exposed first, to ascertain the adequacy of the run off. This being satisfactory, the ascending aorta was exposed through a median sternotomy. An 8 mm preformed axillo-bifemoral knitted Dacron Graft was pre-clotted and having applied a side occlud...