a 12 year old child with liodgkin's disease and having received 12 courses of chemotherapy, was referred to thin center with esophageal obstruction. after having performed the necessary investigations, a decision was made to undertake surgery. after surgery, the patient recovered completely and presently enjoys a heallhv life.

Polar codes, that have been recently introduced by Arikan, are one of the first codes that achieved the capacity for vast numerous channels and they also have low complexity in symmetric memoryless channels. Polar codes are constructed based on a phenomenon called channel polarization. This paper discusses relay channel polarization in order to achieve the capacity and show that if inputs of tw...

patients with coronary artery disease and left ventricular dysfunction have high mortality with non surgical (medical) treatment. coronary artery bypass grafting improves survival and the quality of life. recently, revascularization without cardiopulmonary bypass has been presented as a viable alternative. the aim of this study was to survey the result of coronary artery bypass grafting with of...

in this theoretical study, the effect of various types of bypass graft angles on the flow field, has been investigated specially on the temporal wall shear stress (wss) on the toe, heel and some locations on the bed of the left anterior descending (lad) artery at the anastomoses areas in the aorto-coronary (ac) and coronary-coronary (cc) bypasses. flow fields in both bypasses with angles of 20º...

background: liver ischemic insults are important sources of liver injuries leading to production of reactive oxygen species (ros) and mediating liver cell injury. glutathione mediated mechanisms are among the most important defense mechanisms of the liver; n-acetylcysteine (nac) provides cysteine for glutathione defense mechanisms. patients undergoing cardiac surgery are at increased risk of li...

5 cases of hydatid cysts of the heart underwent successful enucleation or removal of the cysts with the aid of cardiopulmonary bypass are being reported. their location, signs, symptoms, diagnostic procedures and consequences are being discussed. clinical, radiologic, electrocardiographic and coronary angiographic findings all confirmed the diagnosis. ah the patients had uneventful postoperativ...

conclusions systemic arterial leukocyte filtration reduces the intubation time but has no other beneficial effect on the outcome of patients undergoing cabg or valve surgery. results the postoperative intubation time was significantly shorter in patients with leukocyte filters (0.014). there was no significant difference between two groups regarding other outcome relatedvariables. patients and ...

revascularization, there is a growing population of patients who are not candidates for either coronary artery bypass grafting (CABG) or conventional percutaneous coronary intervention (PCI). This population is heterogeneous and includes patients with diffuse coronary disease, comorbid conditions or multiple previous bypass operations resulting in no remaining suitable conduits. The majority of...

conclusions there was no difference in clinical outcome after cardiac surgery when we administered an additional dose of methylprednisolone compared to a single dose of methylprednisolone. patients and methods sixty pediatric patients (age < 5years) undergoing cardiopulmonary bypass surgery between september 2011-2012 at imam reza hospital-mashhad were randomly assigned to receive preoperative ...

a research can also reveal the cooperative effectiveness of agencies such as evaluation will lead to discover the weakness and strengths for further improvement of this program. the present study was designed in 2009 especially to see the effectiveness of the working of agricultural extension staff as perceived by farmers in district okara-pakistan. the data were collected with the help of a sp...