8,132 results match your criteria external carotid


Defining carotid near-occlusion with full collapse: a pooled analysis.

Neuroradiology 2021 May 4. Epub 2021 May 4.

Sunnybrook Health Science Centre, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada.

Purpose: Create a new definition of near-occlusion with full collapse to predicting recurrent stroke.

Methods: Pooled analysis of two studies. Patients with symptomatic ≥ 50% carotid stenoses were included. Read More

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Resorbable Purified Porcine Skin Gelatin Cross-Linked with Glutaraldehyde Spheres for Preoperative Embolization of Carotid Body Paraganglioma.

Acta Biomed 2021 Apr 30;92(S1):e2021159. Epub 2021 Apr 30.

Ospedale Maggiore di Lodi - ASST Lodi.

Chemodectomas are rare neuroendocrine tumors that typically arise at the carotid bifurcation and progressively englobe the internal and external carotid artery. Surgical asportation of the capsulated mass is the elective treatment. Pre-procedural embolization of this high vascular tumors is highly recommended because it has shown to improve surgical outcome by reducing both, mean blood loss and total operation time. Read More

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Traumatic pseudoaneurysms of external carotid artery branch: Case series and treatment considerations.

Chin J Traumatol 2021 Apr 21. Epub 2021 Apr 21.

Department of Neurosurgery, Second Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang Province, China.

Purpose: To explore the diagnosis and treatment of traumatic external carotid branch pseudoaneurysms.

Methods: Eleven cases of traumatic external carotid artery branch pseudoaneurysms were admitted in our hospital. Digital subtraction angiography was performed in all patients. Read More

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Concomitant Embolization and Microsurgical Resection of a Giant, Hypervascular Skull Base Meningioma: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2021 Apr 30. Epub 2021 Apr 30.

Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Some skull base tumors can be extremely hypervascular, incorporating multiple vascular territories and demonstrating arteriovenous shunting. Devascularization is a critical step undertaken early in meningioma surgery, necessary before the debulking that is required in skull base tumors. While devascularization can often be achieved with appropriate approach selection, bony drilling, and microsurgical cautery, preoperative embolization of meningiomas has an invaluable role in selected cases. Read More

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Risk factors for Severe Bleeding Complications in Vitreoretinal Surgery and the Role of Antiplatelet or Anticoagulant Agents.

Ophthalmol Retina 2021 Apr 26. Epub 2021 Apr 26.

University Medical Center Goettingen, Ophthalmology, Goettingen, Germany.

Objective: To evaluate the influences and risk factors for severe bleeding complications during vitreoretinal surgery, and to investigate the role of antiplatelet (AP) and anticoagulant (AC) agents.

Design: Prospective trial STUDY POPULATION: This study enrolled patients undergoing vitreoretinal surgery.

Methods And Main Outcome Measures: The procedures included were pars plana vitrectomy and/or scleral buckling. Read More

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Mechanical thrombectomy injury to the arterial wall: A comparison between catheter aspiration and stent retriever.

Eur J Radiol 2021 Apr 14;139:109723. Epub 2021 Apr 14.

Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai, 200233, China. Electronic address:

Purpose: To compare the extent of arterial wall damage when SR and CA were used for treatment of AIS models to evaluate their efficacy and safety.

Methods: A thrombin-induced thrombus was pre-injected into the right distal external carotid-maxillary artery (ECMA) in 12 dogs to create an acute thrombus occlusion model and were randomly divided into the SR group (n = 6; received SR treatment) and CA group (n = 6; received CA treatment). Device safety was also assessed by five passages through the normal left ECMA using each device. Read More

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Cone-beam computed tomography fusion technique for vascular assessment of skull base meningiomas.

World Neurosurg 2021 Apr 23. Epub 2021 Apr 23.

Department of Neurosurgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.

Objective: Cone-beam computed tomography (CBCT) images for skull base tumors provide detailed vascular information and locational relationship with surrounding bony structures. We report the use of the CBCT fusion technique for skull base meningiomas.

Methods: Six patients with petroclival or petrotentorial meningiomas supplied by multiple arterial systems were preoperatively evaluated using CBCT fusion imaging. Read More

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Nociceptive receptors are expressed differently in trigeminal nociception after lingual nerve injury and unilateral external carotid artery occlusion in rats.

Arch Oral Biol 2021 Apr 16;126:105128. Epub 2021 Apr 16.

Faculty of Medicine, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand.

Objectives: To investigate the different changes in nociceptive activity between two animal models of trigeminal neuropathic pain: unilateral external carotid artery ischemic reperfusion and lingual nerve crush in rats.

Design: In this study, changes in nociceptive activity were investigated in unilateral external carotid artery ischemic reperfusion and lingual nerve crush models of trigeminal neuropathic pain in rats. Field excitatory postsynaptic potentials (fEPSPs) evoked by capsaicin application on the tongue of rats were recorded in the trigeminal nucleus caudalis. Read More

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Massive non-aneurysmal subarachnoid hemorrhage after cervical carotid angioplasty and stenting: a case report and review of the literature.

Neurochirurgie 2021 Apr 22. Epub 2021 Apr 22.

CHU Rouen, Department of Neurosurgery, Rouen, F-76000, France.

Introduction: Carotid angioplasty and stenting (CAS) of the cervical segment is a safe and effective procedure for the treatment of carotid artery disease. In rare cases, this procedure causes intracranial hemorrhage (ICH), which is described most often as an ipsilateral intra-parenchymal hematoma. This ICH is the result of a cerebral hyperperfusion syndrome (CHS). Read More

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Parasympathetic brainstem origin sites of triggered external and internal carotid vasodilation are not distributed topographically in the rat.

Authors:
Yumi Takemoto

Neurosci Lett 2021 Apr 21;755:135904. Epub 2021 Apr 21.

Department of Physiology II, Graduate School of Biomedical and Health Sciences (Medicine), Hiroshima University, Hiroshima, Japan. Electronic address:

Cranial parasympathetic activation produces vasodilation in the head and neck region, but little is known about its central and peripheral mechanisms. This study was conducted to examine whether external and internal carotid-vasodilation origin sites triggered by chemical stimulation are distributed topographically in the parasympathetic brainstems of anesthetized rats, and to examine the effects of peripheral receptors on vasodilation. Microinjection of the neuromodulator candidate l-cysteine revealed that external and internal carotid vasodilation-triggering sites were distributed non-topographically along the full extent of the parasympathetic parvocellular reticular formation (PcRt). Read More

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Effects of head position on internal and external carotid pressures in standing sedated horses.

Can J Vet Res 2021 Apr;85(2):127-130

Department of Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, Washington 99164-6610, USA.

The effects of head position on internal carotid artery (ICA) and external carotid artery (ECA) pressures in standing sedated horses were evaluated in this study. The common carotid artery (CCA) was catheterized in 6 horses using an ultrasound-guided technique to facilitate placement of a pressure transducer within the ICA and ECA at the level of the guttural pouch. Transducer position was confirmed by endoscopic visualization. Read More

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Detection of asymptomatic carotid stenosis in patients with lower-extremity arterial disease: development and external validations of a risk score.

Br J Surg 2021 Apr 19. Epub 2021 Apr 19.

Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK.

Background: Recommendations for screening patients with lower-extremity arterial disease (LEAD) to detect asymptomatic carotid stenosis (ACS) are conflicting. Prediction models might identify patients at high risk of ACS, possibly allowing targeted screening to improve preventive therapy and compliance.

Methods: A systematic search for prediction models for at least 50 per cent ACS in patients with LEAD was conducted. Read More

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Effect of jump exercise training on long-term head-down bed rest-induced cerebral blood flow responses in arteries and veins.

Exp Physiol 2021 Apr 18. Epub 2021 Apr 18.

Unicaen, Inserm Comete, GIP Cyceron, Normandie University, Caen, France.

New Findings: What is the central question of this study? What is the effect of an exercise countermeasure on microgravity-induced change in cerebral blood flow? What is the main finding and its importance? Jump exercise training as a countermeasure did not modify the heterogeneous cerebral blood flow response to head-down bed rest, suggesting that this method is effective in preventing cardiovascular system deconditioning but is not good for cerebral haemodynamics.

Abstract: This study aimed to examine the effect of an exercise countermeasure on cerebral blood flow (CBF) response to long-term -6° head-down bed rest (HDBR) in all cerebral arteries and veins. Twenty male volunteers were exposed to HDBR for 60 days with (training group, n = 10) or without (control group, n = 10) jump exercise training as a countermeasure to spaceflight. Read More

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"Unusual Pattern of Cerebral Microbleeds and Petechial Hemorrhages after Veno-Arterial Extracorporeal Membrane Oxygenation Support. A Report of 2 Cases".

J Stroke Cerebrovasc Dis 2021 Apr 15;30(7):105792. Epub 2021 Apr 15.

Department of Radiology, Bichat Hospital, 46 rue Henri Huchard, 75018 -Paris, France; Assistance Publique-Hôpitaux de Paris. Electronic address:

Objective: to report an unusual pattern of brain petechial hemorrhages in 2 patients after veno-arterial extracorporeal membrane oxygenation support (VA-ECMO) CASE 1: a 28-year-old man (Marfan disease) presented in the early post-operative period a multi-organ failure associated with a disseminated intravascular coagulation (DIC). He was placed on continuous veno-venous hemofiltration and VA-ECMO. He was weaned from ECMO 4 days later. Read More

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[Two-stage contralateral combined microvascular and wide-lumen anastomosis inTwo-stage contralateral combined microvascular and wide-lumen anastomosis in a patient with acute ischemic stroke patient with acute ischemic stroke].

Zh Vopr Neirokhir Im N N Burdenko 2021 ;85(2):68-74

Regional Clinical Hospital No. 2, Tyumen, Russia.

Common carotid artery (CCA) thrombosis is a rare cause of ischemic stroke. In available literature, we found no studies devoted to cerebral revascularization for CCA occlusion in acute period of ischemic stroke. Successful treatment of concomitant occlusion of CCA, internal (ICA) and external carotid arteries (ECA) with microvascular anastomoses is very interesting for various specialists. Read More

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No correlation between mean platelet volume and carotid artery thickness in patients with diabetes at intermediate or high risk for cardiovascular diseases.

Blood Coagul Fibrinolysis 2021 Apr 14. Epub 2021 Apr 14.

Department of Clinical Laboratory Department of Hematology, Chugoku Central Hospital, Fukuyama Department of Hematology, Okayama University Medical School, Okayama, Japan.

The number of patients with diabetes with a risk of cardiovascular diseases (CVDs) is increasing worldwide, leading to a higher demand for evaluating atherosclerosis. Recently, the mean platelet volume (MPV) available from complete blood count is gaining attention as a marker of underlying atherosclerotic lesions. In the current study, we examined whether MPV can predict carotid atherosclerosis in patients with diabetes at an intermediate or high risk for CVD. Read More

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Thirty-Day Results of the Novel CGuard-Covered Stent in Patients Undergoing Carotid Artery Stenting.

J Endovasc Ther 2021 Apr 15:15266028211007466. Epub 2021 Apr 15.

Vascular Unit, 1st University Surgical Department, Aristotle University, General Hospital Papageorgiou, Thessaloniki, Greece.

Objective: The aim of this study was to provide early-term evaluation, safety, and efficacy of the novel CGuard (Inspire MD, Tel Aviv, Israel) micromesh self-expanding stent with embolic protection system (EPS) during carotid artery stenting (CAS) procedure.

Materials And Methods: All patients who underwent CAS with CGuard carotid stent system from January 2018 to September 2020 in a tertiary center were prospectively evaluated. Primary endpoints included technical success and perioperative neurological events (0-48 hours). Read More

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A rare complication of an Arteriovenous shunt after bimaxillary surgery.

JPRAS Open 2021 Jun 11;28:90-96. Epub 2021 Mar 11.

Department of Oral and Maxillofacial Surgery, Erasmus MC, University Medical Center Rotterdam, Netherlands.

The most common complications following bimaxillary surgery are inferior alveolar nerve damage, hemorrhage, and relapse. Severe complications are rare, but few cases of vascular arteriovenous malformation, cavernous sinus thrombosis, formation of an aneurysm or arteriovenous shunting are reported in literature. We present a case of a 20-year-old male patient who developed a right sided tinnitus and visible pulsations close to the mandibular angle on the right side after bimaxillary surgery. Read More

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Cerebral venous sinus thrombosis due to external compression of internal jugular vein.

J Int Med Res 2021 Apr;49(4):3000605211006609

Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.

Cerebral venous sinus thrombosis (CVST) is a special subtype of stroke that may be life-threatening in severe cases. CVST has distinct risk factors and is frequently overlooked because of its initially nonspecific clinical presentation. We herein describe a 72-year-old man who developed CVST in the right lateral sinus. Read More

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Augmented Reality Fluorescence Imaging in Cerebrovascular Surgery: A Single-Center Experience with Thirty-Nine Cases.

World Neurosurg 2021 Apr 8;151:12-20. Epub 2021 Apr 8.

Department of Neurosurgery, University Hospital of Basel, Basel, Switzerland; Faculty of Medicine, University of Basel, Basel, Switzerland.

Background: Several intraoperative imaging methods exist in cerebrovascular surgery to visualize and analyze the vascular anatomy flow. A new method based on multispectral fluorescence (MFL) imaging of indocyanine green (ICG) video angiography (VA) allows real-time, augmented reality (AR) visualization of blood flow superimposed on white-light microscopic images. We describe our single-center experience using MFL AR in cerebrovascular surgery. Read More

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Blood volume flow in the superficial temporal artery assessed by duplex sonography: predicting extracranial-intracranial bypass patency in moyamoya disease.

J Neurosurg 2021 Apr 9:1-8. Epub 2021 Apr 9.

Departments of1Neurology and.

Objective: Superficial temporal artery-middle cerebral artery (STA-MCA) bypass surgery is an important therapy for symptomatic moyamoya disease. Its success depends on bypass function, which may be impaired by primary or secondary bypass insufficiency. Catheter angiography is the current gold standard to assess bypass function, whereas the diagnostic value of ultrasonography (US) has not been systematically analyzed so far. Read More

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A Life Saving Emergent Temporary External Carotid Artery Controlled in Extensive Craniofacial Injury.

Int Med Case Rep J 2021 30;14:199-204. Epub 2021 Mar 30.

Department of Surgery, Faculty of Medicine, Khonkaen University, Khon Kaen, Thailand.

Introduction: Craniofacial trauma may potentially have significant blood loss which may lead to death in some trauma patients.

Case Report: We report a case of a 43-year-old male who had a lethal noncompressible arterial hemorrhage from a penetrating wound on his left frontotemporal and preauricular region. Extensive bleeding was successfully temporarily controlled by external carotid artery (ECA) occlusion. Read More

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Assessment of ocular blood flow in continuous-flow ventricular assist device by laser speckle flowgraphy.

J Artif Organs 2021 Apr 6. Epub 2021 Apr 6.

Department of Artificial Organs, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe-Shimmachi, Suita, Osaka, 564-8565, Japan.

Although the influence of continuous-flow left ventricular assist device (CF-LVAD) support on peripheral circulation has been widely discussed, its monitoring modalities are limited. The aim of this study was to assess the peripheral circulation using the laser speckle flowgraph (LSFG) which can quantitatively measure the ocular blood flow. We implanted a centrifugal CF-LVAD (EVAHEART; Sun Medical Technology Research Corporation, Nagano, Japan) in five adult goats (body weight 44. Read More

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Cervical duplex ultrasound for the diagnosis of giant cell arteritis with vertebral artery involvement.

J Neuroimaging 2021 Apr 5. Epub 2021 Apr 5.

Second Department of Neurology, National & Kapodistiran University of Athens, School of Medicine, "Attikon" University Hospital, Athens, Greece.

Giant cell arteritis (GCA) is a systemic inflammatory arteriopathy of medium and large-sized arteries, predominantly affecting branches of the external carotid artery. Ischemic stroke has been reported in 2.8-7% of patients diagnosed with GCA. Read More

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The characteristics of carotid body tumors in high-altitude region: Analysis from a single center.

Vascular 2021 Apr 4:17085381211005238. Epub 2021 Apr 4.

Department of Cardiovascular Surgery, Qinghai University Affiliated Hospital, Xi'ning, China.

Objectives: Though carotid body tumors are rare, increasing attentions have been given because of malignant transformation and high surgical risk. However, at present, the characteristics and etiology still remain unclear. Our study was designed to describe the clinical features of carotid body tumors in our institution and to compare the results with previous reports. Read More

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Corrigendum: Laina Ndapewa Angula . External auditory canal haemorrhage as the first sign of internal carotid artery pseudoaneurysm, a rare case: a case report doi: 10.11604/pamj.2020.37.163.21968.

Pan Afr Med J 2021 6;38:239. Epub 2021 Mar 6.

Department of Otolaryngology, First Hospital of Jilin University, Changchun, China.

[This corrects the article DOI: 10.11604/pamj.2020. Read More

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[Analysis of efficacy of coblation assisted endoscope system for the treatment of parapharyngeal space tumors with transoral approach].

Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021 Mar;35(3):204-208

Department of Otorhinolaryngology,the First Affiliated Hospital,Nanjing Medical University,Nanjing,210029,China.

To summarize and analyze the feasibility, safety and efficacy of parapharyngeal space surgery assisted by coblation and endoscopic system with transoral approach. The data of 20 patients with parapharyngeal space tumors were retrospectively analyzed. All the patients underwent CT and/or MRI examination before surgery, and all underwent transoral approach assisted by coblation and endoscopic systems. Read More

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Infrared Thermally Enhanced 3-Dimensional Time of Flight Magnetic Resonance Angiography Imaging for the Visualization of the Arteries of the Face.

Aesthet Surg J Open Forum 2020 Jun 11;2(2):ojaa020. Epub 2020 May 11.

Department of Radiology, AZ Sint-Maarten, Mechelen, Belgium.

Background: The face is known for its extreme variation in vascular anatomy. Furthermore, the rapidly increasing number of filler treatments leads to an increase in severe filler-associated complications (such as skin necrosis and blindness) due to intra-arterial injection. Visualizing a patient's individual complete facial arterial anatomy in a contrast- and radiation-free way has not been published before. Read More

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New proposal to revise the classification for squamous cell carcinoma of the external auditory canal and middle ear.

J Laryngol Otol 2021 Apr 31;135(4):297-303. Epub 2021 Mar 31.

Department of Otolaryngology - Head and Neck Surgery, Kobe University Graduate School of Medicine, Kobe, Japan.

Background: The prognosis of patients with advanced squamous cell carcinoma of the external auditory canal and middle ear has been improved by advances in skull base surgery and multidrug chemoradiotherapy during the last two decades.

Methods: Ninety-five patients with squamous cell carcinoma of the external auditory canal and middle ear who were treated between 1998 and 2017 were enrolled. The number of patients with tumour stages T1, T2, T3 and T4 was 15, 22, 24 and 34, respectively. Read More

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A systematic review of the status and methodological considerations for estimating risk of first ever stroke in the general population.

Neurol Sci 2021 Mar 30. Epub 2021 Mar 30.

School of Public Health and Management, Chongqing Medical University, Chongqing, 400016, China.

Aims: The methodological quality of development, validation, and modification of those models have not been evaluated via a thoroughly literature review. This study aims to describe the overall status and evaluate the methodological quality of risk prediction models for stroke incidence in the general population.

Methods: We searched the database of EMBASE and MEDLINE by the combination of subject words and key words to collect the research on stroke risk prediction model in the general population. Read More

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