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Internal carotid artery

Apar S Patel, Christoph J Griessenauer, Raghav Gupta, Nimer Adeeb, Paul M Foreman, Hussain Shallwani, Justin M Moore, Mark R Harrigan, Adnan H Siddiqui, Christopher S Ogilvy, Ajith J Thomas
INTRODUCTION: Cerebral vasospasm following subarachnoid hemorrhage (SAH) is the single most important cause of neurological decline following successful treatment of the ruptured aneurysm. Here, we report safety and efficacy of non-compliant balloon angioplasty for the treatment of cerebral vasospasm. METHODS: Three major academic institutions in the United States provided data on cerebral vasospasm treated with non-compliant balloon angioplasty between October 2004 and February 2016...
October 21, 2016: World Neurosurgery
Manasa Reddy, Bernard Tawfik, Chakri Gavva, Sean Yates, Nicole De Simone, Sandra L Hofmann, Siayareh Rambally, Ravi Sarode
Thrombosis is known to occur in patients with rare inherited bleeding disorders, usually in the presence of a thrombotic risk factor such as surgery and/or factor replacement therapy, but sometimes spontaneously. We present the case of a 72-year-old African American male diagnosed with congenital factor VII (FVII) deficiency after presenting with ischemic stroke, presumably embolic, in the setting of atherosclerotic carotid artery stenosis. The patient had an international normalized ratio (INR) of 2.0 at presentation, with FVII activity of 6% and normal Extem clotting time in rotational thromboelastometry...
October 17, 2016: Transfusion and Apheresis Science
Effat Soleimani, Manijhe Mokhtari-Dizaji, Nasser Fatouraee, Hazhir Saberi
Purpose: The aim of this study was to introduce and implement a noninvasive method to derive the carotid artery pressure waveform directly by processing diagnostic sonograms of the carotid artery. Methods: Ultrasound image sequences of 20 healthy male subjects (age, 36±9 years) were recorded during three cardiac cycles. The internal diameter and blood velocity waveforms were extracted from consecutive sonograms over the cardiac cycles by using custom analysis programs written in MATLAB...
September 20, 2016: Ultrasonography
Li Zhao, Marta Vidorreta, Salil Soman, John A Detre, David C Alsop
PURPOSE: To improve pseudo-continuous arterial spin labeling (PCASL) robustness to off-resonance and pulsatile blood flow velocity. METHODS: Bloch equations were solved to evaluate the effect of labeling parameters in a pulsatile flow model for a range of off-resonance. Experimental confirmation was achieved in volunteers using linear phase increase between labeling pulses to approximate off-resonance errors. We first assessed the location of the labeling plane in four volunteers...
October 23, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
N Alonso-Gómez, R Navarro-Suay, M Cuesta-de Diego, F Sáinz-González
No abstract text is available yet for this article.
October 18, 2016: Revista Española de Anestesiología y Reanimación
Saleem I Abdulrauf, Peter Vuong, Ritesh Patel, Raghu Sampath, Ahmed M Ashour, Lauren M Germany, Jonathon Lebovitz, Colt Brunson, Yuvraj Nijjar, J Kyle Dryden, Maheen Q Khan, Mihaela G Stefan, Evan Wiley, Ryan T Cleary, Connor Reis, Jodi Walsh, Paula Buchanan
OBJECTIVE Risk of ischemia during aneurysm surgery is significantly related to temporary clipping time and final clipping that might incorporate a perforator. In this study, the authors attempted to assess the potential added benefit to patient outcomes of "awake" neurological testing when compared with standard neurophysiological testing performed under general anesthesia. The procedure is performed after the induction of conscious sedation, and for the neurological testing, the patient is fully awake. METHODS The authors conducted an institutional review board-approved prospective study of clipping unruptured intracranial aneurysms (UIAs) in 30 consecutive adult patients who underwent awake clipping...
October 21, 2016: Journal of Neurosurgery
S Sundaram, S Kannoth, B Thomas, P S Sarma, P N Sylaja
BACKGROUND AND PURPOSE: Cervical internal carotid artery occlusion can present with varied clinical manifestations such as transient ischemic attack, stroke, and chronic ocular ischemia, or can be asymptomatic. The outcome in these patients is considerably influenced by cerebral hemodynamic compensatory adaptation of the intracranial collateral pathways. Our aim was to study whether collateral circulation as assessed by CT angiography can predict 3-month outcome and initial stroke severity in patients with symptomatic cervical ICA occlusion...
October 20, 2016: AJNR. American Journal of Neuroradiology
B Verillaud, L Robard, J Michel, V Pruliere Escabasse, E Béquignon, L Crampette, O Malard
OBJECTIVES: The authors present the guidelines of the French Oto-Rhino-Laryngology - Head and Neck Surgery Society (Société Française d'Oto-Rhino-Laryngologie et de Chirurgie de la Face et du Cou: SFORL) on second-line treatment of epistaxis in adults, after failure of anterior and/or anterior-posterior nasal packing. METHODS: A multidisciplinary work group was entrusted with a review of the scientific literature on the above topic. Guidelines were drawn up, based on the articles retrieved and the group members' individual experience...
October 17, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
Jeffrey D Hooker, David A Joyner, Edward P Farley, Majid Khan
Eagle syndrome is a rare condition resulting from elongation of the temporal styloid process or calcification of its associated stylohyoid ligaments. Although usually presenting with pain or odynophagia, Eagle syndrome has been reported to cause a multitude of neurologic symptoms or vascular complications, some of which can be life-threatening. We present a case in which an endovascularly placed internal carotid artery stent in close proximity to a calcified stylohyoid ligament resulted in stent fracture with subsequent stent and vessel occlusion...
June 2016: Journal of Radiology Case Reports
Huakun Liu, Jianfeng Chu, Lei Zhang, Chaolai Liu, Zhongrui Yan, Shengnian Zhou
BACKGROUND: With carotid artery stenosis, infarcts can occur in the cortical or internal watershed areas, or both. The timing of carotid artery stenting (CAS) after a cerebral watershed infarction (CWI) is not yet codified. In this retrospective study, we analyzed the safety and clinical effect of early CAS for CWI patients due to carotid artery stenosis. METHODS: Between March 2011 and April 2014, 120 CWI patients with ipsilateral carotid artery stenosis were recruited...
October 20, 2016: European Neurology
Jeong-Min Kim, Kwang-Yeol Park, Dong-Woo Shin, Moo-Seok Park, Oh-Sang Kwon
BACKGROUND AND AIMS: Elevated serum homocysteine level is known to be associated with increased risk of vascular event due to endothelial senescence. We investigated the association between serum homocysteine level and cerebral arteriosclerosis status including intracranial vascular calcification and atherosclerosis burden. METHODS: We identified 1193 consecutive patients (mean age = 68.6 ± 12.7, 537 female patients) who were admitted with acute cerebral infarction or transient ischemic attack from a single university medical center...
October 13, 2016: Atherosclerosis
Marcus D Mazur, Philipp Taussky, Joel D MacDonald, Min S Park
BACKGROUND AND IMPORTANCE: As the use of flow-diverting stents (FDSs) for intracranial aneurysms expands, a small number of case reports have described the successful treatment of blister aneurysms of the internal carotid artery with flow diversion. Blister aneurysms are uncommon and fragile lesions that historically have high rates of morbidity and mortality despite multiple treatment strategies. We report a case of rebleeding after treatment of a ruptured blister aneurysm with deployment of a single FDS...
November 2016: Neurosurgery
Raghav Gupta, Justin M Moore, Nimer Adeeb, Christoph J Griessenauer, Apar S Patel, Michelle H Chua, Ajith J Thomas, Christopher S Ogilvy
BACKGROUND: Moyamoya disease is a vascular disorder characterized by progressive stenosis of the internal carotid artery. The presentation, progression, treatment options, and post-operative clinical outcomes for elderly (60 and older) Moyamoya patients have never been reported. METHODS: A retrospective analysis of all patients who were diagnosed with Moyamoya disease by the senior authors between 1991 and 2016 was performed. Patients who were 60 years or older at the time of surgery or last follow-up were further evaluated...
October 18, 2016: Acta Neurochirurgica
Takahiro Wakasaki, Hirofumi Omori, Shintaro Sueyoshi, Fumihide Rikimaru, Satoshi Toh, Kenichi Taguchi, Yuichiro Higaki, Masaru Morita, Muneyuki Masuda
BACKGROUND: Advanced head and neck squamous cell carcinomas frequently develop distant metastases to limited organs, including the lungs, bone, mediastinal lymph nodes, brain, and liver. Peritoneal carcinomatosis as an initial distant metastasis from hypopharyngeal squamous cell carcinoma is quite rare. CASE PRESENTATION: A 75-year-old man diagnosed with hypopharyngeal squamous cell carcinoma and his clinical stage was determined as T2N2cM0. Notably, the right retropharyngeal lymph node surrounded more than half of the right internal carotid artery...
October 18, 2016: World Journal of Surgical Oncology
Jürgen Bohlender, Jürg Nussberger, Beate Bohlender
OBJECTIVE: In elderly hypertensive patients, systolic blood pressure (sBP) goals recommended by US and European guidelines (ESH) for the initiation of treatment are more liberal than in younger patients because of an increased risk of treatment-associated side-effects and hypotension. Carotid stenosis increases with age and poses a risk of brain ischemia if hypotension occurs. Its relevance for the routine care of elderly hypertensives, however, remains unclear. We analyzed data on precerebral artery morphology and BP evolution from a survey of aged hospitalized patients...
September 2016: Journal of Hypertension
Paolo Pauletto, Massimo Puato, Marcello Rattazzi, Roberta Buso, Giovanni Boschetti, Marta Zanon, Claudio Fania, Paolo Palatini
OBJECTIVE: The aim of this study was to evaluate the impact of well controlled blood pressure (BP) levels on structural and functional properties of arteries in essential hypertensives. DESIGN AND METHOD: We studied 80 young hypertensives (mean age 49 yo) allocated either to pharmacological treatment (55 of 80) or to lifestyle modifications (25 of 80) for at least 12 months (mean 38 months) to maintain target BP. Follow-up visits were scheduled every 6 months. Office BP was taken three times by the same doctor at the time of the study...
September 2016: Journal of Hypertension
Francesco Spannella, Federico Giulietti, Silvia Buscarini, Piero Giordano, Maddalena Ricci, Emma Espinosa, Riccardo Sarzani
OBJECTIVE: Age is considered one of the main risk factors for cardiovascular (CV) disease and aging seems to play a central role in the onset and progression of atherosclerosis. AIM: to compare the prevalence of carotid plaque in a very elderly population without history of peripheral arterial disease (PAD) and major adverse cardiovascular events (MACE), with the prevalence in a population of hypertensive adults. DESIGN AND METHOD: We studied 179 patients: 69 hospitalized very elderly (mean age: 88...
September 2016: Journal of Hypertension
Yusuke Kobayashi, Hideo Kobayashi, Hiroaki Ishiguro, Keisuke Yatsu, Tetsuya Fujikawa, Satoshi Umemura
OBJECTIVE: Though both carotid bulb and aortic arch are known to play important roles in regulation of blood pressure through modulation in baroreflex function, few studies have investigated the association of carotid bulb atherosclerosis and large arterial stiffness and orthostatic blood pressure change. DESIGN AND METHOD: Patients with metabolic disorder such as hypertension, dyslipidemia and diabetes mellitus underwent measurement of segment-specific carotid intima-media thickness (IMT) (as an index of atherosclerosis of carotid bulb), cardio-ankle vascular index (CAVI) (as an index for large arterial stiffness), heart rate variability (HRV) (as an index of baroreflex function) and sit-to-stand orthostatic blood pressure change (as a simple method for detecting orthostatic hypotension)...
September 2016: Journal of Hypertension
K Schmidt, T Pottgießer, S Meckel, D Duerschmied, C Bode, J Reinöhl
No abstract text is available yet for this article.
September 7, 2016: Der Internist
Enrico Ammirati, Francesco Moroni, Marco Magnoni, Simona Di Terlizzi, Chiara Villa, Federico Sizzano, Alessio Palini, Katia Garlaschelli, Fernanda Tripiciano, Isabella Scotti, Alberico Luigi Catapano, Angelo A Manfredi, Giuseppe Danilo Norata, Paolo G Camici
BACKGROUND AND AIMS: Monocytes are known to play a key role in the initiation and progression of atherosclerosis and contribute to plaque destabilization through the generation of signals that promote inflammation and neoangiogenesis. In humans, studies investigating the features of circulating monocytes in advanced atherosclerotic lesions are lacking. METHODS: Patients (mean age 69 years, 56% males) with intermediate asymptomatic carotid stenosis (40-70% in diameter) were evaluated for maximal stenosis in common carotid artery, carotid bulb and internal carotid artery, overall disease burden as estimated with total plaque area (TPA), greyscale and neovascularization in 244 advanced carotid plaques...
October 6, 2016: Atherosclerosis
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