objective: standardization of hospital emergency units is a major goal in developed countries to decrease the duration of patients stay in these units. the present study was undertaken to evaluate the prevalence of long-term staying in an emergency ward. methods: in the present 2-month cross-sectional study, patients referring to the emergency ward of imam hossein hospital were assessed. the pa...

A 19-year-old man sustained a gunshot to the suprasternal notch with no exit wound. The precise make and model of the weapon were unknown (A). He presented to the emergency department with severe thoracoabdominal pain that was relieved spontaneously. The patient was hemodynamically stable during admission, with a Glasgow Coma Scale score of 15. Initial vital signs were as follows: mean blood pr...

Five patients studied by the authors and 28 mentioned in the literature indicate that recurrent stenosis occurs in no less than 0.6% of patients after carotid endarterectomy. The pathology of the recurrent stenosis was stated in only 10 cases indicating atherosclerotic disease in various stages of development in 7 and a fibrous intimal hyperplasia in 3. Correlation between risk factors for the ...

Case Presentation: A 46-year-old man with a past medical history significant for morbid obesity (body mass index of 66), hypertension, tobacco use, and dyslipidemia presented to an outside hospital with a non–STsegment elevation myocardial infarction and was transferred for coronary angiography. Femoral arterial access was obtained for an uncomplicated percutaneous intervention (PCI) with the u...

INTRODUCTION The Authors report their experience in the management of acute lower limbs ischemia through distal popliteal artery approach. PATIENTS AND METHODS Five popliteal embolectomy through a medial approach were performed; in one patient a posterior approach was carried out. Patients were included in two groups on the basis of ischemia duration: group A<6 hours (3 patients) and group B>...

Primary leiomyosarcoma of the pulmonary artery is an extremely rare tumor and its diagnosis is very diffi cult to establish. We present the case of a 63-year-old male patient, previously smoker, with previous pulmonary tuberculosis, diagnosed in 2014 with leiomyosarcoma of pulmonary artery. Surgery (right and left arteriotomy and bilateral extended end arterectomy) was performed in September 20...

The term synaptic plasticity points to a series of persistent changes related to the activity of synapses. Long-term potentiation (LTP) is a reflection of synaptic plasticity that has an important role in learning and memory. LTP is a long-lasting increase of synaptic activity due to enhancement of excitatory synaptic transmission after a high-frequency train of electrical stimulations. Differe...

BACKGROUND Management of patients with co-existent coronary and carotid disease is a controversial and challenging issue. The risk for stroke after coronary artery bypass grafting (CABG) in patients with hemodynamically significant carotid stenosis is up to 30%. In these patients a common practice is to proceed first with the restoration of cerebral perfusion and then perform the coronary revas...

Recent advances in endovascular technology have generated a variety of alternative procedures and instruments in treating peripheral arterial occlusive disease. Mechanical atherectomy has been developed as an alternative to conventional percutaneous transluminal angioplasty (PTA) because of its limitations. Atherectomy devices can selectively remove atheroma by cutting or pulverising it in athe...

INTRODUCTION There has been a paradigm shift in the treatment of AAA with the advent of endovascular aneurysm repair (EVAR). Rapid progress and evolution of endovascular technology has brought forth smaller profile devices and closure devices. Total percutaneous endovascular aneurysm repair (pEVAR) involves the usage of suture-mediated closure devices (SMCDs) at vascular access sites to avoid a...