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https://www.readbyqxmd.com/read/28716673/application-of-3d-computerized-tomography-angiography-for-defining-cavernous-sinus-aneurysms-and-intradural-aneurysms-involving-the-internal-carotid-artery-around-the-anterior-clinoid-process
#1
Quan Cheng, Chun-Bo Huang, Jun-Yu Wang, Bing Jiang, Long-Bo Zhang, Ming Zeng, Yuan-Bing Chen, Hong-Fu Zhang, Feng-Hua Chen
OBJECTIVE: The current study aimed to investigate the application of three-dimensional computed tomography angiography (3D-CTA) for defining cavernous sinus aneurysms and intradural aneurysms involving the internal carotid artery around the anterior clinoid process. METHODS: Results from 42 patients with an aneurysm of the internal carotid artery around the anterior clinoid process who underwent 3D-CTA were reviewed and compared with those of observed clinical operations...
July 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28681443/evaluation-of-the-congenital-supravalvular-aortic-stenosis-by-different-imaging-modalities
#2
Ahmet Guner, Nuri Havan, Sabahattin Gunduz, Taylan Akgun, Busra Guvendi, Gokhan Kahveci
A 36-year-old female was admitted to hospital exhibiting chest pain, dyspnea, and a heart murmur on the right upper sternal border, radiating to both carotid arteries. The blood pressure of the patient's right arm exceeded the pressure in the left by 25 mm Hg (Coanda effect). In spite of laboratory results that did not fall outside the expected range, the left ventricle was revealed to be hypertrophic following electrocardiography. Transthoracic echocardiography revealed a severe supravalvular aortic stenosis (SVAS) with a peak Doppler velocity of 6...
July 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28675547/baroreceptor-reflex-failure-review-of-the-literature-and-the-potential-impact-on-patients-with-head-and-neck-cancer
#3
Shivani Shah-Becker, Michael Pennock, Lawrence Sinoway, David Goldenberg, Neerav Goyal
BACKGROUND: Baroreceptor dysfunction and reflex failure may occur after surgery affecting the carotid artery. The implications for patients undergoing treatment for head and neck cancer are not well described. METHODS: A literature search of PubMed was performed between March 2016 and May 2016. Search terms used individually and in combination included: "baroreflex failure," "carotid sinus sensitivity," "carotid endarterectomy," "carotid body tumor," and "head and neck cancer...
July 4, 2017: Head & Neck
https://www.readbyqxmd.com/read/28664025/traumatic-carotid-cavernous-fistula-with-a-connection-between-the-supraclinoid-internal-carotid-artery-and-cavernous-sinus-via-a-pseudoaneurysm-presenting-with-delayed-life-threatening-epistaxis
#4
Jun Kyeung Ko, Sang Weon Lee, Tae Hong Lee, Chang Hwa Choi
Traumatic carotid cavernous fistula (CCF) presents most commonly as a direct connection between the cavernous segment of internal carotid artery (ICA) and cavernous sinus (CS), and often accompanies basal skull fracture (BSF). The most frequently reported signs and symptoms are proptosis, chemosis, and bruit. Epistaxis is uncommon symptom of CCF. A 63-year-old man with a history of BSF due to blunt head trauma eight months previously was referred to our emergency room for massive epistaxis. Cerebral angiography demonstrated a high-flow CCF with a connection between the supraclinoid portion of left ICA and CS via a pseudoaneurysm, suggesting the life-threatening epistaxis had been caused by high-flow shunting, through the gap created by the BSF...
April 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28664013/erdheim-chester-disease-involving-the-central-nervous-system-with-the-unique-appearance-of-a-coated-vertebral-artery
#5
Hime Suzuki, Masahiko Wanibuchi, Katsuya Komatsu, Yukinori Akiyama, Takeshi Mikami, Shintaro Sugita, Tadashi Hasegawa, Mitsunori Kaya, Kohichi Takada, Nobuhiro Mikuni
Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis. It is characterized by multiple xanthogranulomatous masses throughout the body, predominantly in the tibia. One of the characteristic radiological findings of the lesions associated with ECD is a "coated artery," which is often observed in the aorta. Although approximately one-fourth of ECD cases involve the central nervous system (CNS), an intracranial-coated artery has only been reported in four cases. We report a case of ECD that involves the CNS and has the unique appearance of a coated vertebral artery (VA)...
October 2016: NMC Case Rep J
https://www.readbyqxmd.com/read/28658829/acute-ischaemic-stroke-as-a-manifestation-of-pituitary-apoplexy-in-a-young-lady
#6
Shaik Afsar Pasha, Laxmi Narasimhan Ranganthan, Vamsi Krishna Setty, Ramakrishna Reddy, Deepika Ananda Ponnuru
Pituitary Apoplexy (PA) is defined as a clinical syndrome comprising headache, visual deficits and altered sensorium, which can result from haemorrhage or infarction of the pituitary gland. Acute ischaemic stroke following PA is very rare. We are presenting a 35-year-old young otherwise healthy lady who presented with neuro ophthalmological and vascular symptoms on a background of PA. Imaging revealed a pituitary macro adenoma with parasellar extension with internal bleed. Cerebral angiography revealed that the mass compressed the bilateral cavernous sinuses (left more than right), resulting in obliteration of the cavernous portion of the left Internal Carotid Artery (ICA)...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28647659/flow-diverters-as-a-useful-adjunct-to-traditional-endovascular-techniques-in-the-treatment-of-direct-carotid-cavernous-fistulas
#7
Christopher S Ogilvy, Rouzbeh Motiei-Langroudi, Mohammad Ghorbani, Christoph J Griessenauer, Abdulrahman Y Alturki, Ajith J Thomas
BACKGROUND: Direct carotid-cavernous sinus fistulas (CCF) are high flow arteriovenous shunts that are typically the result of a severe head injury. The endovascular treatment of these lesions includes the use of detachable balloons, coils, liquid embolic agents, and covered stents. To minimize the chance of treatment failure and subsequent complications, endoluminal reconstruction using a flow-diverting stent may be added to the treatment construct . METHODS: We present 3 cases and review the existing literature...
June 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28634510/internal-carotid-artery-and-sphenoidal-emissary-vesalian-vein-fistula-mimicking-a-carotid-cavernous-sinus-fistula
#8
Ava L Liberman, Preethi Ramchand, Kimberly Gannon, Eric L Zager, Bryan Pukenas, Aaron L Bress, Michael D Ezekowitz, Robert Hurst, Steven R Messé
No abstract text is available yet for this article.
July 2017: Neurohospitalist
https://www.readbyqxmd.com/read/28634313/-a-case-of-bilateral-traumatic-carotid-cavernous-fistula
#9
Hanae Terashima, Takashi Higa, Koichi Kato, Tadasuke Tominaga, Masanori Nakagawa, Shigeru Kadoyama, Hiroshi Ujiie, Akira Teramoto
Bilateral traumatic carotid-cavernous fistula(CCF)is rare. It is most commonly caused by a direct head or face injury involving the cavernous sinus and develops immediately after trauma. We report a case of bilateral traumatic CCF that occurred as an intracerebral hematoma(ICH)mimicking apoplexy 5 months later. We treated the patient with point occlusion of venous reflux causing an ICH using coil embolization to remove the hematoma. Three days after we performed trans-venous occlusion of the intercavernous connection and right cavernous sinus using coil embolization through the right inferior petrosal vein, it was identified that the left CCF was occluded after first embolization into the left sylvian vein...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28621574/endovascular-plug-for-internal-carotid-artery-occlusion-in-the-management-of-a-cavernous-pseudoaneurysm-with-bifrontal-subdural-empyema-technical-note
#10
Sunil Manjila, Gagandeep Singh, Obinna Ndubuizu, Zoe Jones, Daniel P Hsu, Alan R Cohen
The authors demonstrate the use of an endovascular plug in securing a carotid artery pseudoaneurysm in an emergent setting requiring craniotomy for a concurrent subdural empyema. They describe the case of a 14-year-old boy with sinusitis and bifrontal subdural empyema who underwent transsphenoidal exploration at an outside hospital. An injury to the right cavernous segment of the ICA caused torrential epistaxis. Bleeding was successfully controlled by inflating a Foley balloon catheter within the sphenoid sinus, and the patient was transferred to the authors' institution...
June 16, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28620841/device-based-approaches-for-the-treatment-of-arterial-hypertension
#11
REVIEW
Jens Jordan
Device-based antihypertensive treatments have primarily been developed and clinically tested for patients with hypertension refractory to pharmacological treatment. Most but not all device-based treatments target the sympathetic nervous system and provided important new insight in the mechanisms of human hypertension. This review provides an overview on the scientific rational and clinical data on recent device-based antihypertensive treatment approaches. Device-based treatments targeting the sympathetic nervous system include catheter-based renal nerve ablation, electrical carotid sinus stimulation, modulation of baroreflex transduction through a dedicated carotid stent, carotid body denervation, and deep brain stimulation...
July 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28603683/cavernous-sinus-involvement-by-pituitary-adenomas-clinical-implications-and-outcomes-of-endoscopic-endonasal-resection
#12
Abdulrazag Ajlan, Achal S Achrol, Abdulrahman Albakr, Abdullah H Feroze, Erick M Westbroek, Peter Hwang, Griffith R Harsh
Background  Parasellar invasion of pituitary adenomas (PAs) into the cavernous sinus (CS) is common. The management of the CS component of PA remains controversial. Objective  The objective of this study was to analyze CS involvement in PA treated with endoscopic endonasal approaches, including incidence, surgical risks, surgical strategies, long-term outcomes, and our treatment algorithm. Methods  We reviewed a series of 176 surgically treated PA with particular attention to CS involvement and whether the CS tumor was approached medial or lateral to the internal carotid artery...
June 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28602497/anatomical-localization-of-the-cavernous-sinus-dural-fistula-by-3d-rotational-angiography-with-emphasis-on-clinical-and-therapeutic-implications
#13
Santhosh Kumar Kannath, Jayadevan Enakshy Rajan, Sankara P Sarma
BACKGROUND AND PURPOSE: Carotid cavernous sinus dural arteriovenous fistulas (CSDAVFs) are presumed to be located within the walls of the cavernous sinus, however the exact fistulous site has not yet been studied by angiographic or anatomical methods. The present study aimed to localize CSDAVFs with the help of 3D rotational angiography (RA) and correlated the observations with clinical and angiographic findings. MATERIALS AND METHODS: The CSDAVFs were categorized as dural, extradural or osseous based on the site of convergence of feeders into the venous sac...
June 8, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28599682/bilateral-ocular-ischemia-induced-blindness-as-a-presenting-manifestation-of-takayasu-arteritis-a-case-report
#14
Pedro Pallangyo, Emmanuel Epafra, Paulina Nicholaus, Frederick Lyimo, Parvina Kazahura, Mohamed Janabi
BACKGROUND: Takayasu arteritis is a granulomatous panarteritis that predominantly affects the aorta and its major branches. The initial manifestations of this large-vessel vasculitis are usually nonspecific; however, as the disease progresses, typical symptoms of arterial occlusion, aneurysmal formation, and vascular pain become evident. Ischemic ocular complications of Takayasu arteritis which could lead to complete loss of vision are not uncommon and depend on the obliterated portion(s) of carotid(s), the intensity and rate of progression of ocular vascular insufficiency, and sufficiency of the collateral blood supply to the eye...
June 10, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28593889/circonscript-subcutaneous-arteriovenous-malformation-of-the-head
#15
Vladimir Mirchevski, Elizabeta Zogovska, Aleksandar Chaparoski, Venko Filipce, Milenko Kostov, Mirko Mishel Mirchevski
The aim of this study is to show the various possibilities to treat this rare malformation, accentuating the results of the early surgical treatment before complications. MATERIAL: The authors present 8 cases of patients with subcutaneous arteriovenous malformations, 5 females and 3 males (age of 7, 13, 19, 23, 27, 52 and 58 years) treated in the period of 1999 until 2015 at the Clinic for Neurosurgery and the Clinic for Plastic, Aesthetic and Reconstructive Surgery in Skopje, Republic of Macedonia...
March 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28574038/-prediction-of-ischaemic-lesions-of-the-brain-in-reconstructive-operations-on-internal-carotid-arteries
#16
M M Tanashian, R B Medvedev, A N Evdokimenko, É G Gemdzhian, S I Ckrylev, O V Lagoda, M V Krotenkova, A S Suslin
The present study was undertaken to examine the relationship between the level of the intensity of the ultrasonic signal reflected from atherosclerotic plaques (ATP) of carotid arteries and the risk for formation of an ischaemic lesion in the brain matter, detected during diffusion-weighted magnetic resonance imaging (DW-MRI) performed 24 hours after carotid endarterectomy (CEA) or carotid angioplasty and stenting (CAS). Our prospective study included a total of 78 patients presenting with stenosis of the sinus of the interior carotid artery...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28531285/paratrigeminal-paraclival-precavernous-or-all-of-the-above-a-circumferential-anatomical-study-of-the-c3-c4-transitional-segment-of-the-internal-carotid-artery
#17
Eleonora Marcati, Norberto Andaluz, Sebastien C Froelich, Lee A Zimmer, James L Leach, Juan Carlos Fernandez-Miranda, Almaz Kurbanov, Jeffrey T Keller
BACKGROUND: Although the term paraclival carotid pervades recent skull base literature, no clear consensus exists regarding boundaries or anatomical segments. OBJECTIVE: To reconcile various internal carotid artery (ICA) nomenclatures for transcranial and endoscopic-endonasal perspectives, we reexamined the transition between lacerum (C3) and cavernous (C4) segments using a C1-C7 segments schema. In this cadaveric study, we obtained a 360°-circumferential view integrating histological, microsurgical, endoscopic, and neuroradiological analyses of this C3-C4 region and identified a distinct transitional segment...
May 21, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28529487/cardiac-baroreflex-variability-and-resetting-during-sustained-mild-effort
#18
Mair Zamir, Mark B Badrov, T Dylan Olver, J Kevin Shoemaker
This exploratory study assessed the pattern of closed-loop baroreflex resetting using multi-logistic-curve analysis. Operating point gain and ranges of RR-interval (RRI) and systolic blood pressure (SBP) are derived to examine how these relate to sympathetic activation. Sustained low-intensity isometric handgrip exercise, with a period of post-exercise circulatory occlusion (PECO), provided a model to study baroreflex resetting because the progression toward fatigue at constant tension induces a continuous increase in volitional contribution to neuro-cardiovascular control...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28514500/histology-of-the-distal-dural-ring
#19
Christopher S Graffeo, Avital Perry, William R Copeland, Aditya Raghunathan, Michael J Link
The distal dural ring (DDR) is a conserved intracranial anatomic structure marking the boundary point at which the internal carotid artery (ICA) exits the cavernous sinus (CS) and enters the subarachnoid space. Although the CS has been well described in a range of anatomic studies, to our knowledge no prior study has analyzed the histologic relationship between the ICA and DDR. Correspondingly, our objective was to assess the relationship of the DDR to the ICA and determine whether the DDR can be dissected from the ICA and thus divided, or can only be circumferentially trimmed around the artery...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28512115/endogenous-hydrogen-sulfide-enhances-carotid-sinus-baroreceptor-sensitivity-by-activating-the-transient-receptor-potential-cation-channel-subfamily-v-member-1-trpv1-channel
#20
Wen Yu, Ying Liao, Yaqian Huang, Selena Y Chen, Yan Sun, Chufan Sun, Yuming Wu, Chaoshu Tang, Junbao Du, Hongfang Jin
BACKGROUND: We aimed to investigate the regulatory effects of hydrogen sulfide (H2S) on carotid sinus baroreceptor sensitivity and its mechanisms. METHODS AND RESULTS: Male Wistar-Kyoto rats and spontaneously hypertensive rats (SHRs) were used in the experiment and were given an H2S donor or a cystathionine-β-synthase inhibitor, hydroxylamine, for 8 weeks. Systolic blood pressure and the cystathionine-β-synthase/H2S pathway in carotid sinus were detected. Carotid sinus baroreceptor sensitivity and the functional curve of the carotid baroreceptor were analyzed using the isolated carotid sinus perfusion technique...
May 16, 2017: Journal of the American Heart Association
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