• Endovascular stent-assisted angioplasty in the management of traumatic internal carotid artery dissections. (ejcrim.com)
  • Xianjun H, Zhiming Z. A systematic review of endovascular management of internal carotid artery dissections. (ejcrim.com)
  • Axial T1-weighted MRI demonstrating a crescent sign (arrow) in a patient with a left internal carotid artery dissection. (medscape.com)
  • We aimed to evaluate the treatment results in patients with internal carotid artery (ICA) and vertebral artery (VA) dissection. (annaly-nevrologii.com)
  • In vEDS, anatomical and pathophysiological features of the intra-cavernous internal carotid artery make it prone to shunting in the cavernous sinus, due either to a spontaneous rupture or to a spontaneous dissection with pseudoaneurysm formation. (biomedcentral.com)
  • In direct CCF, internal carotid artery (ICA) wall disruption allows high-pressure blood to move into the CS, resulting in short-circuiting of the ICA arterial blood into the venous system of the CS. (biomedcentral.com)
  • The blood does not collect within a preexisting space, but rather creates a space at the Fractures of Cranial Base In fractures of the cranial base, the internal carotid artery may be torn, producing an arteriovenous fistula within the cavernous sinus. (gov.gy)
  • HEP+ patients were more likely to have vertebrobasilar and middle cerebral artery (MCA)-M1 occlusions but less likely to have internal carotid artery and MCA-M2 occlusions (p=0.04). (bmj.com)
  • Cerebrovasc Dis (2016) 42 (1-2): 23-31. (karger.com)
  • Cerebrovasc Dis 2011;32(1):57-64. (nih.gov)
  • Cervical dissections can be broadly classified as either "spontaneous" or traumatic. (wikipedia.org)
  • The two main causes of cervical artery dissection can be broadly categorized as either spontaneous or traumatic. (wikipedia.org)
  • Spontaneous cervical artery dissections are dissections that occur without any trauma to the neck. (wikipedia.org)
  • Differences in demographic characteristics and risk factors in patients with spontaneous vertebral artery dissections with and without ischemic events. (medscape.com)
  • Spontaneous cervical artery dissection (CAD) accounts for only ∼2% of all ischaemic strokes, but it accounts for 10-25% of ischaemic strokes in young adult patients. (bmj.com)
  • Spontaneous cervicocephalic dissection is an important cause of stroke and presents with varying lesion locations and clinical features. (neurointervention.org)
  • They enter the skull through the foramen magnum and merge at the pontomedullary junction to form the basilar artery. (medscape.com)
  • This study aimed to evaluate the effectiveness, safety, and technical considerations of flow diverter (FD) treatment using a Flow Re-direction Endoluminal Device (FRED) for unruptured intracranial vertebral artery dissecting aneurysms (VADAs). (neurointervention.org)
  • True arterial aneurysms involve all three layers of the artery wall (intima, media and adventitia). (patient.info)
  • False aneurysms may arise following angiogram, angioplasty or at the join between a graft and the artery. (patient.info)
  • The most common are saccular aneurysms, which are described as being berry-shaped swellings occurring at the bifurcation of arteries. (patient.info)
  • Pontine artery aneurysms, especially when associated with CPAc AVMs, represent a surgical challenge, due to their rarity and anatomical peculiarity, which typically requires complex operative approaches. (surgicalneurologyint.com)
  • 27 , 29 ] Cerebellopontine angle cistern (CPAc) AVMs are even rarer,[ 32 ] especially when associated with aneurysms originating from the same parent artery (2.8-9.3% of all AVMs). (surgicalneurologyint.com)
  • The categorization of these aneurysms is based on their relationship with the nidus, extranidal ones more frequently occur on the pedicle of the feeding artery and are considered the leading cause of bleeding in about 37% of cases. (surgicalneurologyint.com)
  • Nakama T, Obunai K, Muraishi M, Watanabe H. Percutaneous endoluminal anatomical bypass for patients with external iliac artery occlusion after failed conventional endovascular recanalization. (alliedacademies.org)
  • They include: Carotid artery dissection, a separation of the layers of the artery wall supplying oxygen-bearing blood to the head and brain. (wikipedia.org)
  • Cervical artery dissections are a significant cause of strokes in young adults. (wikipedia.org)
  • Traumatic cervical artery dissections are dissections that occur after any sort of trauma to the neck, ranging from minor trauma such as nose-blowing or sneezing to severe trauma such as roadside accidents. (wikipedia.org)
  • Cervical artery dissections begin initially with a small tear in the innermost layer of the arterial wall, the tunica intima, or rupture of the vasa vasorum with bleeding within the media. (wikipedia.org)
  • Clinical and radiographic natural history of cervical artery dissections. (medscape.com)
  • 2016 . Cervical artery dissections: a review . (ajtmh.org)
  • A complete occlusion of the artery can result in cerebral ischemia as the brain is depleted of oxygen-rich blood. (wikipedia.org)
  • However, for some patients with total occlusion of the artery without typical imaging features of dissection, the unequivocal distinction between intramural haematoma and intraluminal thrombus may be not adequate by T1 VISTA alone. (bmj.com)
  • Each vertebral artery usually gives off the posterior inferior cerebellar artery (PICA). (medscape.com)
  • At the top of the pons, the basilar artery divides into 2 posterior cerebral arteries (PCAs). (medscape.com)
  • As compared to patients in Western countries, intracranial arterial dissections in Koreans occur most commonly in the posterior circulation, particularly in the vertebral artery (VA) [ 1 , 6 ]. (neurointervention.org)
  • The spinal circulation comprises two paired posterior spinal arteries running down the dorsum of the cord and a single anterior artery found in the median fissure. (biomedcentral.com)
  • A 77-year-old male was referred to our hospital for follow-up computed tomography (CT) of prostate cancer, which revealed a mediastinal tumor and fatty low-density along the posterior mediastinum of the para-aortic artery with a slightly high-density component. (springeropen.com)
  • The result of this tear is often an intramural hematoma and/or aneurysmal dilation in the arteries leading to the intracranial area. (wikipedia.org)
  • A tear in one of the layers of the arterial walls can result in blood collecting within a pocket between the layers of the artery, which can result in an intramural hematoma and/or aneurysmal dilation. (wikipedia.org)
  • For T1 VISTA, the diagnosis of the dissection was based on the presence of intramural high-signal, intimal flap, double lumen and aneurysmal dilation. (bmj.com)
  • As part of the second discussion, I pointed out that, while the evidence base supporting chiropractic manipulation as a cause of strokes due to occlusion of the vertebral or basilar arteries is pretty convincing, the evidence that chiropractic manipulation can cause carotid artery injury is much less convincing. (scienceblogs.com)
  • It's not difficult to see how a rapid rotation of the head could potentially stretch the basilar arteries. (scienceblogs.com)
  • ultrasonography may have a role in the initial diagnosis of dissections if CT-A or MRA are unavailable. (medscape.com)
  • Although high-resolution magnetic resonance imaging (HR-MRI) has been used as a strong imaging method for diagnosing intracranial vertebral artery dissection (IVAD), the diagnosis is sometimes challenging because a dissection has geometric changes in the natural course. (karger.com)
  • Headache Visual disturbances (i.e. diplopia, ptosis) Tinnitus Neck and face pain Horner syndrome (often partial) Loss of taste Anosmia Unilateral weakness Stroke Various imaging modalities can be used for the diagnosis of cervical artery dissection. (wikipedia.org)
  • Yamaura A. Nontraumatic Intracranial Arterial Dissection: Natural History, Diagnosis, and Treatment. (medscape.com)
  • Objective We aimed to investigate the value of three-dimensional (3D) T1 volumetric isotropic turbo spin echo acquisition (VISTA) in the diagnosis of cervical artery dissection (CAD). (bmj.com)
  • The final diagnosis of dissection was based on the clinical history, physical examination, and all of the imaging tests. (bmj.com)
  • Diagnosis of dissection was made for 20 of the 21 patients after assessing T1 VISTA. (bmj.com)
  • A definitive diagnosis of dissection was not made for 5 patients (including 3 patients with digital subtraction angiography) before the T1 VISTA examination. (bmj.com)
  • We did not include those patients under 18 years of age, those whose anamnesis was not possible due to severe language impairment or decreased level of consciousness, those with arterial dissection or arterial rupture and those with headache on arrival to our hospital prior to thrombectomy. (biomedcentral.com)
  • The rate of intracranial artery involvement from dissection is exceptionally high in Asia [ 3 - 5 ]. (neurointervention.org)
  • a Korean study reported that around 15% of ICAS-related occlusions (ICAS-O) are found in patients with intracranial artery occlusion in anterior circulation [ 14 ]. (j-stroke.org)
  • Another Korean study demonstrated that ICAS-O was encountered in approximately 35% patients with vertebrobasilar artery occlusion [ 6 ]. (j-stroke.org)
  • Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. (medscape.com)
  • Vertebral artery dissection (VAD) is a relatively rare but increasingly recognized cause of stroke in patients younger than 45 years. (medscape.com)
  • Carotid artery dissection (CAD) is a major cause of stroke in those under age 45, accounting for around 20% of ischaemic events [1,2] . (ejcrim.com)
  • Predictors of delayed stroke in patients with cervical artery dissection. (ejcrim.com)
  • Thrombolysis in cervical artery dissection--data from the Cervical Artery Dissection and Ischaemic Stroke Patients (CADISP) database. (medscape.com)
  • That injury tore an artery in her neck and cut off blood flow to her brain, which led to the stroke that killed her. (scienceblogs.com)
  • The three main subtypes are: large artery stroke, cardioembolic stroke and lacunar stroke. (bmj.com)
  • Stroke due to large artery stenosis-from atherosclerosis in the carotid, vertebral or intracranial vessels-is probably primarily thromboembolic secondary to thrombosis at the site of stenosis, rather than haemodynamic. (bmj.com)
  • Genetic data suggest that risk factors relating to altered coagulation are important for both cardioembolic and large artery stroke, but less so for small vessel stroke. (bmj.com)
  • for example, in a patient with a territorial infarct, finding atrial fibrillation suggests a cardioembolic cause, or finding a ipsilateral carotid stenosis suggests a large artery stroke. (bmj.com)
  • Cervical artery dissection has been noted to be a common cause of young adult strokes, with some sources indicating a prevalence of up to 20% in this young adult population with annual incidence rates between 2.6 and 2.9 per 100,000, although these incidences may be misleading with true incidences being higher because clinical presentations can vary, many being minor or self-limited, and thus these dissections can go undiagnosed. (wikipedia.org)
  • There were no strokes in 110 patients with local symptoms due to ICA/VA dissection during the observation period. (annaly-nevrologii.com)
  • However, these thrombectomy devises are primarily designed for recanalization of the occluded artery by removing an embolus [ 9 - 11 ], and recanalization may not be sufficiently achieved if a significant stenosis, related to intracranial atherosclerosis (ICAS), is present at the occlusion site [ 12 ]. (j-stroke.org)
  • The cupula pleuræ is supported on the lateral side by the scalenus anterior and scalenus medius muscles, whilst the subclavian artery, arching laterally, lies in a groove on its medial and ventral aspects a short distance below its summit. (co.ma)
  • 7.9 Subclavian Artery Region. (libreriastudium.it)
  • The vertebral arteries arise from the subclavian arteries, and as they course cephalad in the neck, they pass through the costotransverse foramina of C6 to C2. (medscape.com)
  • Cervical artery dissection is dissection of one of the layers that compose the carotid and vertebral artery in the neck (cervix). (wikipedia.org)
  • Most traumatic dissections are secondary to some form of rapid decelerations injuries resulting in hyperextension or hyperflexion with rotational injury of the neck. (wikipedia.org)
  • Because the brain has a pair of carotid and vertebral arteries on each side of the neck, a unilateral occlusion can be asymptomatic, as the bilateral circulation continues perfusing the brain. (wikipedia.org)
  • There is a large, wide stream of blood emanating from the neck of Saint John with a parabolic trajectory, likely from the carotid artery. (hekint.org)
  • To feel the pulse of a carotid artery, place your fingertips gently against either side of your neck, right under the jaw. (adam.com)
  • The basilar artery forms at the base of the skull from the vertebral arteries, which run up along the spine, join, and come up through the rear of the neck. (adam.com)
  • Errnvphglfrv ruj chapter 4 head and neck cancers or through batson s vertebral venous plexus cast in flexion or crepitus of radial rigidity may be useful. (ben.edu)
  • This is the second edition of a superbly illustrated manual on neck dissection that will serve as a roadmap for advanced surgeons and beginners alike. (libreriastudium.it)
  • Mid-thoracic levels are most vulnerable to ischemia (for example, as a result of thrombosis) as there is only one radicular artery supplying the anterior spinal artery in this region, and sparse anastomoses. (biomedcentral.com)
  • Di Marco L, Botta L, Murana G, Pacini D. An unusual case of Thoraflex displacement after blunt thoracic trauma during skiing. (alliedacademies.org)
  • We report a case of a thoracic duct cyst extending from the caudal aspect of the left main bronchus to the left renal artery that was safely and completely resected via bilateral thoracoscopic surgery in the prone position. (springeropen.com)
  • Dissection around the thoracic duct cyst was performed using a vessel-sealing system to prevent leakage of the chyle, and reliable clipping was performed to resect the cisterna chyli. (springeropen.com)
  • Because these venous channels are valveless, compression of the thorax, abdomen, or pelvis, as occurs during heavy coughing and straining, may force venous blood from these regions into the internal vertebral venous system and from it into the dural venous sinuses. (gov.gy)
  • Antiplatelets vs anticoagulation for dissection: CADISS nonrandomized arm and meta-analysis. (ejcrim.com)
  • Antiplatelet treatment compared with anticoagulation treatment for cervical artery dissection (CADISS): a randomised trial. (medscape.com)
  • A dissection typically results in a tear in one of the layers of the arterial wall. (wikipedia.org)
  • citation needed] As the arterial wall begins to tear, blood begins to enter this newly formed false lumen and the resulting hematoma formation can either narrow (stenosis) or occlude the artery, decreasing or completely blocking blood flow through the artery. (wikipedia.org)
  • Some of the best known are arterial wall dissection or bleeding due to vessel perforation. (biomedcentral.com)
  • First-line management is comprised of antiplatelet or anticoagulation therapy, but many traumatic dissections progress despite this and carry the risk of long-term complications from embolism or stenosis [3] . (ejcrim.com)
  • Merckel LG, Van der Heijden J, Jongen LM, van Es HW, Prokop M, Waaijer A. Effect of stenting on cerebral CT perfusion in symptomatic and asymptomatic patients with carotid artery stenosis. (ejcrim.com)
  • Examination of CT images showed that he had an unstable sixth cervical vertebral fracture as well as a second lumbar vertebral fracture associated with significant canal stenosis. (heartviews.org)
  • If the carotid duplex is negative, imaging of the more distal carotid artery with CT angiography or MR angiography may identify a stenosis. (bmj.com)
  • The cerebellum is supplied by long circumferential arteries, the PICA, and the anterior inferior and superior cerebellar arteries from the basilar artery. (medscape.com)
  • Acute spinal cord ischemia syndrome (ASCIS) is predictably due primarily to pathology in the anterior spinal artery, its feeders or its branches. (biomedcentral.com)
  • First described by Spiller in 1909 [ 2 ], thrombosis of the anterior spinal artery is often due to fracture of a cervical vertebra or a cervical hyperextension injury. (biomedcentral.com)
  • Up to eight radicular arteries are established during development and supply the anterior spinal artery, the largest of which is the artery of Adamkiewicz between T9 and T11. (biomedcentral.com)
  • The territory of the anterior spinal artery covers the anterolateral and corticospinal tracts, but not the dorsal columns. (biomedcentral.com)
  • The classic presentation for anterior spinal artery ischemia or infarct is sensory deficits in the following pattern: distal to the lesion, pain and temperature are lost bilaterally (owing to the involvement of anterolateral spinothalamic tracts), but light touch, vibration and position sense are preserved (owing to sparing of dorsal columns). (biomedcentral.com)
  • In the recently published case report by Haynes et al, intraarticular thrombolysis with tissue plasminogen activator (t-PA) in combination with verapamil and an antiplatelet agent (Eptifibatide) was performed for acute occlusion of the anterior spinal artery in a 52-year-old patient. (fortunejournals.com)
  • Angiogram of the descending aorta demonstrates the stenoses of FMD in the renal arteries bilaterally. (medscape.com)
  • In about 25% of cases, there is co-existing arterial occlusive disease in the renal or lower extremity arteries. (patient.info)
  • In the absence of known connective tissue disorders, most dissections are traumatic [2] . (ejcrim.com)
  • At the moment, there is no definitive location for the dissection, with some believing dissection initially occurs within the connective tissue and vasa vasorum of the media while others believe dissection begins with an intimal tear. (wikipedia.org)
  • Hereditary connective tissue diseases include autosomal polycystic kidney disease, Ehlers-Danlos syndrome, Marfan syndrome, fibromuscular dysplasia, and osteogenesis imperfecta type 1 although studies have shown that the link between hereditary connective tissue diseases and cervical artery dissection is low, ranging from 0-0.6% in one study and 5-18% in another study. (wikipedia.org)
  • We report a case of traumatic bilateral carotid dissection leading to progressive neurological symptoms and hypoperfusion on computed tomography perfusion (CTP), despite escalation in anticoagulation, which led to emergency carotid stenting. (ejcrim.com)
  • Antiplatelets versus anticoagulation in cervical artery dissection. (ejcrim.com)
  • Georgiadis D, Arnold M, von Buedingen HC, Valko P, Sarikaya H, Rousson V. Aspirin vs anticoagulation in carotid artery dissection: a study of 298 patients. (medscape.com)
  • Clinically silent circulating microemboli in 20 patients with carotid or vertebral artery dissection. (ejcrim.com)
  • For patients without acute artery occlusion, all of them had a definite conclusion with or without dissection by T1 VISTA (n=29). (bmj.com)
  • However, for 17 patients with acute artery occlusion, the possibility of dissection could not be excluded for 6 of them by T1 VISTA (p=0.001). (bmj.com)
  • We examined 285 patients (122 men and 163 women, mean age 37.7 ± 8.1 years) with ICA dissection ( n = 147), VA dissection ( n = 122), or a combination of both ( n = 16). (annaly-nevrologii.com)
  • There were no statistically significant differences in AC and AP efficacy in patients with ICA or VA dissection. (annaly-nevrologii.com)
  • To date, no case has been described in the literature in which traumatized patients developed vascular myelopathy with a time delay without the presence of direct spinal trauma or direct vertebral vascular injury. (fortunejournals.com)
  • Here we present an unusual case of a patient who sustained a right coronary artery dissection and associated acute myocardial infarction following a motor vehicle crash. (heartviews.org)
  • Cerebral angiogram of a left internal carotid dissection showing gradual vessel tapering to occlusion. (medscape.com)
  • The myelopathy could be caused by impaired arterial perfusion due to hypovolaemia and disrupted arterial flow on the Adamkiewicz artery. (fortunejournals.com)
  • We only see parabolic bleeding from two arterial sources and not the expected four, as these arteries are present bilaterally. (hekint.org)
  • Unilateral common carotid artery dissection in a patient with recent COVID-19: an association or a coincidence? (ajtmh.org)
  • Despite the well-known risk factors, the pathogenesis of ICH is unclear, and the site of bleeding has rarely been demonstrated histologically due to the difficulty in examining tissue destroyed by hemorrhage as well as secondary bleeding caused by the disruption of surrounding arteries [ 12 , 13 ]. (nature.com)
  • Vertebral artery dissection, a flap-like tear of the inner lining of the vertebral artery that supply blood to the brain and spinal cord. (wikipedia.org)
  • In Dr. Alf Briegs groundbreaking textbook, Adverse Mechanical Tension in the Central Nervous System , Dr. Brieg showed on dissection that the human spinal cord stretched and deformed under FHP. (lighthousehealth.ca)
  • Leading causes are dissections of the aorta and their reconstructions. (fortunejournals.com)
  • Desgarro en la capa interna de la AORTA que provoca HEMORRAGIA intersticial y la separación (disección) de la TÚNICA MEDIA de la AORTA. (bvsalud.org)
  • Ismael VA, Ahmed MH, Taher MM. Echocardiography assessment of the left ventricular systolic function and regional wall motion abnormalities pre-and post-coronary artery bypass grafting surgery. (alliedacademies.org)
  • Signs and symptoms of a cervical artery dissection are often non-specific and can be localized or generalized. (wikipedia.org)
  • The signs and symptoms of cervical artery dissection are often non-specific or generalized and can either develop acutely or over several days. (wikipedia.org)
  • Headache was usually moderate and oppressive, ipsilateral to the artery occlusion and usually lasted less than 48 hours. (biomedcentral.com)