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Catheter-based intravascular near-infrared spectroscopy (NIRS) detects a lipid signal from atherosclerotic plaque. The aim of this study was to describe the effect of carotid artery stenting (CAS) on the lipid signal in a carotid stenosis.
Plaque characteristics play pivotal roles in ischemic events, but stenosis severity does not accurately reflect carotid plaque volume due to expansive remodeling in some patients with low-grade stenosis (LGS).
/objectives: Dura of the anterior clinoid process (ACP) is presumably supplied by the ophthalmic and external carotid artery branches. There is a less recognised artery described by Yasargil that arises directly from the supraclinoid internal carotid artery (ICA) and supplies the ACP dura. We studied the origin and course of this direct branch in patients in whom the carotid cistern was dissected for lesions not involving the carotid cistern and ACP dura. The management implications of this arterial twig ha...
OBJECTIVEThe neurocognitive course of patients who have undergone cerebral revascularization has been the subject of many studies, and the reported effects of carotid artery stenting (CAS) on cognitive function have varied from study to study. The authors hypothesized that cognitive amelioration after CAS is associated with alteration of the default mode network (DMN) connectivity, and they investigated the correlation between functional connectivity (FC) of the DMN and post-CAS changes in cognitive functio...
Pulse wave analysis (PWA) over the carotid artery is one of the available methodological options to obtain central arterial pressures and other important hemodynamic parameters. However, limited data exist relating the PWA estimates of one carotid artery over the contralateral one as the majority of the available data rely on measures over the right carotid artery.
Cerebral protection device utilization during carotid artery stenting (CAS) has been demonstrated to decrease the risk of perioperative stroke. The ProximAl Protection with the MO.MA Device During CaRotid Stenting (ARMOUR) Trial had the lowest event rates of any independently adjudicated study. In this video of two cases of severe carotid artery stenosis, the authors present the nuances of the CAS procedure utilizing a dual-balloon guide catheter device (MO.MA). This device has the benefit of being in place...
Agenesis, aplasia and hypoplasia of the internal carotid artery are rare congenital malformations. They are usually asymptomatic and incidentally discovered through ultrasound or imagistic tests. The aim of this study is to improve their management in our Departments. We report here the case of a 39-year-old woman addressed to our ambulatory in 2013 for benign symptoms like dizziness and headache. Imagistic findings (magnetic resonance imaging of the brain, and cervical spine, and magnetic resonance angiogr...
Although chronic subdural hematoma (CSDH) has a good prognosis after classical minimally invasive drainage surgery, severe complications still occur at a substantial rate. In particular, cerebral hyperperfusion syndrome (CHS), which is a common severe complication after carotid endarterectomy or carotid artery stenting for cervical carotid artery stenosis, is rare after drainage surgery for a CSDH.
Carotid atherosclerotic plaque occurs predominantly at the outer wall of carotid sinus, and computational fluid dynamics (CFD) plays important roles in explaining plaque formation. This study was to investigate the hemodynamic factors in affecting carotid atherosclerotic stenosis.
We report four cases of painful Horner's syndrome due to carotid artery dissection. A lesion on oculosympathic pathway causes Horner's syndrome. A painful Horner's syndrome needs a prompt exploration by tomodensitometry or magnetic resonance imaging to exclude carotid artery dissection. Actually, carotid artery dissection leads to stroke or cerebral ischemic symptoms, mainly in the first two weeks. The treatment is based on anticoagulants or antiplatelet agents.
Intraplaque hemorrhage (IPH) is one of the most important causes of ischemic stroke. The purpose of this study was to explore the association between carotid IPH and CD147, which may be the serum marker related to IPH. Serum samples were collected from 68 patients with carotid artery stenosis from April to September 2004. 3.0T MRI with the 8 channel surface coil was used to scan carotid artery. Images was processed by MRI-PlaqueView. The integrity of lipid, IPH, calcified components and fibrous cap in the ...
Carotid endarterectomy (CEA) requires complete control of the blood backflow. An anomalous ascending pharyngeal artery (AphA) has been reported to result in incomplete control of the blood flow during CEA. Here, we present a case of symptomatic right internal carotid stenosis for which CEA was performed. An anomalous AphA was confirmed based on its origin from the distal internal carotid artery (ICA) on 3-dimension rotational angiography (3DRA). The anomalous AphA arised near the distal end of the plaque, a...
The external carotid artery (ECA) is inadvertently occluded during carotid endarterectomy (CEA). The importance of ECA occlusion has been emphasized as a loss of extracranial to intracranial collaterals, a source of chronic embolization, or a site for extended thrombosis during wound closure. This study aimed to determine whether ECA occlusion that inadvertently developed during endarterectomy and that was eventually detected using blood flow measurement of the ECA after declamping of all carotid arteries i...
Stroke is the leading cause of death worldwide and stenosis of the carotid artery accounts for more than half of all cases. Carotid duplex is an effective non-invasive ultrasound test which identifies stroke patients with moderate to severe carotid stenosis who are candidates for preventative intervention to reduce the risk of recurrence. In patients with moderate to severe carotid stenosis, reversed ophthalmic artery flow (ROAF) is often observed at the time of the carotid duplex scan. In this study, we in...
To characterize patients with internal carotid occlusion (ICO) with respect to demographic data, associated diseases, medical management and risk factors and to compare these patients with those with non-significant stenosis (NSS; less than 50% stenosis). Secondary end-points were new neurologic events, progression of contralateral degree of stenosis and cardiovascular symptoms and death during follow-up.
Persistent carotid-basilar connections have a prevalence of 0.14%. Recognizing such persistent fetal anastomoses between the carotid and the vertebrobasilar circulation is of great importance since they are reportedly associated with an increased prevalence of intracranial aneurysms. We report the case of a 15-year-old female who presented with a WFNS grade 5 subarachnoid hemorrhage from an aneurysm at the junction of a persistent primitive hypoglossal artery and the posterior inferior cerebellar artery ori...
Extracranial internal carotid artery (EICA) thromboembolism is one major cause of ischemic stroke and the predictive value of non-high-density lipoprotein cholesterol (non-HDLC) is superior to low-density lipoprotein cholesterol (LDL-C). This study aims to assess the association between non-HDLC levels and the prevalence of asymptomatic EICA stenosis (EICAS) as well as the predictive value of non-HDLC over LDL-C on EICAS presence.
The effects and complications of hybrid procedure (combined carotid endarterectomy and carotid stenting) to revascularize chronic long-segment occlusion of internal carotid artery (ICA) are currently unknown and the purpose of this study.
ST2 represents an interesting bio-marker associated with the progression of atherosclerotic disease.
Presented herein is the world experience of surgical treatment and various tactical approaches in a combined lesion of the extracranial and intracranial portions of the internal carotid artery (ICA): a combination of its stenosis or occlusion with vascular malformation of the brain (a cerebral aneurysm, pathological anastomoses, arteriovenous malformations). Also pointed out is the prevalence of the pathology involved, followed by describing various types of surgical policy in this condition: staged and sim...
Researches involving arterial pressure measurements in mice have primarily relied on carotid arterial catheterization. However, in some circumstances, measuring arterial pressure through the carotid arterial impairs accuracy. This study was aimed to evaluate whether femoral artery could displace carotid artery for the blood pressure (BP) measurements in mice. Fifty-six Swiss mice (n = 14 in each group) were randomized into four groups: control, left femoral artery, right femoral artery, and union group, ...
Carotid Doppler sonography (CDS) has been routinely used in the screening for restenosis after carotid artery stenting (CAS) by applying the criteria of flow velocity, however, computed tomography angiography (CTA) enables us to detect restenosis directly and has some advantages that help to overcome the limitations of CDS. We aimed to investigate the incidence of restenosis with CTA and to identify factors related to restenosis after CAS.
Takotsubo syndrome (TTS) is a transient transient left ventricular dysfunction, predominantly affecting elderly women and often preceded by emotional or physical stress. TTS may be the cause as well as the consequence of stroke. We report a 82-years old female with a history of long-standing untreated arterial hypertension who was hospitalized because of a left-sided tongue paralysis and dysarthria. Cerebral magnetic resonance imaging showed ischemic lesions in the territory of the right middle cerebral art...
A carotid artery pseudoaneurysm in an irradiated neck is a rare entity with possible devastating results and management should be multidisciplinary. We present a successful endovascular treatment of a late carotid artery pseudoaneurysm following patch endarterectomy and cervical radiotherapy.
Giant ruptured paraclinoid aneurysm with concomitant bilateral internal carotid artery dissection (CAD) could be a very difficult condition to be treated with the current surgical and endovascular techniques. Paraclinoid internal carotid artery (ICA) aneurysms remain a major challenge for vascular neurosurgeons. There are still controversies in the management of carotid artery dissections. Surgical and endovascular treatment is recommended in cases with multi-vessel dissections or those complicated by subar...