This paper proposes the evaluation of arteriovenous shunt (AVS) stenosis using a fractional-order Fuzzy Petri net based screening system for long-term hemodialysis treatment of patients. The screening system uses the Burg method, the fractional-order chaos system, and the Fuzzy Petri net (FPN) for early detection of AVS dysfunction. The Burg method is an autoregressive (AR) model that is used t...

BACKGROUND AND PURPOSE In patients with severe obstruction of the internal carotid artery (ICA), it is recognized that the preoperative failure to visualize collaterals of the circle of Willis increases the risk of hemispheric ischemia before, during, and after carotid endarterectomy (CEA). The purpose of the present study was to assess the effect of CEA on the anatomy and function of the circl...

Orthogonal electrocardiograms (Frank lead system) from 191 patients with pure mitral stenosis (MS) were compared to electrocardiograms from 510 normal patients and 296 patients with pulmonary emphysema (PE). All patients with MS underwent right heart catheterization; 121 patients underwent both left and right heart catheterization. Three hundred and thirty electrocardiographic measurements were...

Orthogonal electrocardiograms (Frank lead system) from 191 patients with pure mitral stenosis (MS) were compared to electrocardiograms from 510 normal patients and 296 patients with pulmonary emphysema (PE). All patients with MS underwent right heart catheterization; 121 patients underwent both left and right heart catheterization. Three hundred and thirty electrocardiographic measurements were...

background: the incidence of stroke after coronary artery bypass grafting (cabg) is between 0.9% and 6.7%, which significantly increases in-hospital and out-hospital costs. this study was designed to evaluate the prevalence of significant carotid stenosis and its risk factors in cabg. methods: in total, 2044 consecutive patients undergoing elective cabg were investigated through a pre-operative...

Congenital duodenal stenosis is one of the most common causes of neonatal obstruction, which is frequently associated with annular pancreas and Down syndrome. Ectopic pancreas is defined as an abnormally situated pancreatic mass that lacks contact with normal pancreas. Although the association between duodenal stenosis and annular pancreas is very common, the presence of an ectopic island of pa...

The average pulmonary blood volume in normal persons was 211 ml./m.2, in patients with mitral regurgitation 266 mnl./m2, and in those with mitral stenosis 419 ml./m.2 In patients with mitral stenosis the pulmonary blood volume could be related to pulmonary symptoms like exertional dyspnoea, haemoptysis, and paroxysmal nocturnal dyspnoea. Pulmonary blood volume could also be related directly to ...

BACKGROUND The goal of this study was to determine the reliability of TCD in evaluation of vertebrobasilar arteries in comparison with brain MRA in patients suffering from acute vertebrobasilar stroke. METHODS Samples were patients with definite clinical diagnosis of vertebrobasilar stroke. For all patients brain MRI, MRA and TCD were performed during the first 48 hours of admission. Basilar ...

A family with 3 cases of pulmonary stenosis with underdeveloped or normal right ventricle is described. In the family there have also been some spontaneous abortions and many infant deaths, and it seems possible that these were also related to congenital cardiac abnormalities. Recognized syndromes with pulmonary stenosis and reports on familial occurrence of this malformation are reviewed. The ...

Sir, A 18 year old female patient was diagnosed to have tubercular cervical lymphadenopathy and started on antitubercular therapy (ATT). The lymphadenopathy regressed, however, after four months of ATT, patient developed jaundice, abdominal distension and swelling of bilateral lower limbs. She had no bleeding manifestation or altered behaviour. She had no history of jaundice in the past, histor...