In this study, a new approach based on adaptive neuro-fuzzy inference system (ANFIS) was presented for detection of internal carotid artery stenosis and occlusion. The internal carotid arterial Doppler signals were recorded from 130 subjects that 45 of them suffered from internal carotid artery stenosis, 44 of them suffered from internal carotid artery occlusion and the rest of them were health...

Cerebrovascular complications, such as stroke, are a common source of morbidity and mortality after cardiac surgery. Although the cause of postoperative stroke is multifactorial, significant carotid stenosis is a positive predictor. Carotid and cardiac surgical procedures are often combined to reduce the risk of stroke; however, this may actually increase adverse events, including stroke. This ...

OBJECTIVE To investigate the association between carotid plaque characteristics and the occurrence of cerebral microemboli signals (MES) and subsequent ischemic events in patients with asymptomatic carotid stenosis (ACS). DESIGN Sixty-two asymptomatic patients with 50-99% carotid stenosis underwent transcranial Doppler (TCD) monitoring to determine the relationship between MES and plaque char...

BACKGROUND AND PURPOSE It has been established that mitral annulus calcification (MAC) is an independent predictor of stroke, though a causative relationship was not proved, and that carotid artery atherosclerotic disease is also associated with stroke. The aim of this study was to determine whether there is an association between the presence of MAC and carotid artery atherosclerotic disease. ...

The prevalence of carotid and lower extremity arterial disease was assessed in a healthy population of 56 elderly adults with isolated systolic hypertension. Duplex scans were performed to determine the extent of carotid disease, and postexercise ratios of ankle to arm systolic blood pressure were measured to assess lower extremity arterial disease. Internal carotid stenosis was found in 38% (2...

BACKGROUND Carotid plaque characteristics influence future risk of stroke considerably. However, the severity of stenosis does not accurately reflect plaque burden in patients with expansive arterial remodeling. OBJECTIVE To determine the therapeutic outcome of symptomatic carotid low-grade stenosis with vulnerable plaque based on magnetic resonance imaging (MRI) characterization. METHODS W...

Background and Purpose Three different methods for estimating the percentage of reduction in the diameter of the internal carotid artery (ie, stenosis) have been proposed in the literature. Further comparisons of the methods were carried out with the intent of recommending a current standard for determining the percentage of stenosis from angiograms. Methods Angiograms from 112 patients were ob...

The one-year incidence of carotid occlusion is 6/100 000 inhabitants in general population. Stroke incidence and mortality rate in these patients vary. Patients that underwent carotid endarterectomy (CES) are at a higher risk of progression of contralateral carotid stenosis. The aim of the study was to investigate the management and natural history of the contralateral internal carotid artery d...

BACKGROUND The Asymptomatic Carotid Atherosclerosis Study (ACAS) showed that carotid endarterectomy was beneficial for symptom-free patients with carotid stenosis of 60% or more. This finding raises the question of whether widespread screening to identify cases of asymptomatic carotid stenosis should be implemented. OBJECTIVE To determine whether a screening program to identify cases of asymp...

This is the case of a hypertensive patient with an asymptomatic carotid stenosis. This is a very common situation that neurologists have to manage. The case is a 75-year-old man with an history of hypertension for 10 years, treated with amlodipine, 5 mg once a day, and perindopril, 8 mg once a day. His hypertension was considered to be controlled. He was also treated for a hyperlipidemia for 5 ...