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https://www.readbyqxmd.com/read/28799861/absence-of-cortical-vein-opacification-is-associated-with-lack-of-intra-arterial-therapy-benefit-in-stroke
#1
Ivo G H Jansen, Annemieke B van Vuuren, Wim H van Zwam, Ido R van den Wijngaard, Olvert A Berkhemer, Hester F Lingsma, Cornelis H Slump, Robert J van Oostenbrugge, Kilian M Treurniet, Diederik W J Dippel, Marianne A A van Walderveen, Aad van der Lugt, Yvo B W E M Roos, Henk A Marquering, Charles B L M Majoie, René van den Berg
Purpose To assess the degree of cortical vein opacification in patients with internal carotid artery or middle cerebral artery (MCA) stroke and to evaluate the relationship with treatment benefit from intra-arterial therapy (IAT). Materials and Methods Written informed consent was obtained from all patients in the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands. From the trial's database, all patients (recruited from December 2010 until March 2014) with baseline computed tomographic (CT) angiograms were retrospectively included...
August 11, 2017: Radiology
https://www.readbyqxmd.com/read/28798796/carotid-sinus-hypersensitivity-syncope-is-there-a-possible-alternative-approach-to-pacemaker-implantation-in-young-patients
#2
Zefferino Palamà, Ermenegildo De Ruvo, Domenico Grieco, Alessio Borrelli, Luigi Sciarra, Leonardo Calò
No abstract text is available yet for this article.
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28797173/sphenoid-sinus-barotrauma-in-diving-case-series-and-review-of-the-literature
#3
Jochen D Schipke, Sinclair Cleveland, Markus Drees
About 50% of scuba divers have suffered from barotrauma of the ears and about one-third from barotrauma of paranasal sinuses. The sphenoid sinuses are rarely involved. Vital structures, as internal carotid artery and optic nerve, adjoin the sphenoid sinus. Thus, barotrauma could lead to serious neurologic disorders, including blindness. After searching the literature (Medline) and other sources (Internet), we present some cases of sphenoid sinus barotrauma, because these injuries may be underreported and misdiagnosed due to the lack of awareness and knowledge...
August 10, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28790216/-a-case-of-tentorial-dural-arteriovenous-fistula-treated-with-transvenous-embolization-using-nbca
#4
Hirokazu Nishiyama, Hiroyuki Matsumoto, Yoshiaki Tetsuo, Hideki Takemoto, Naoyuki Nakao
We report a case of tentorial dural arteriovenous fistula(dAVF)treated with transarterial and transvenous embolization using n-butyl-2-cyanoacrylate(NBCA). A 70-year-old man presented with dysarthria and trunk ataxia. Computed tomography(CT)on admission revealed right cerebellar hemorrhage. Right external carotid angiography demonstrated a tentorial dAVF fed by the marginal tentorial artery, petrosquamous branch of the middle meningeal artery, ascending pharyngeal artery, and artery of foramen rotundum. Right internal carotid angiography demonstrated a shunt fed by the meningohypophyseal trunk...
August 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28780405/malignant-cerebral-swelling-after-cranioplasty-due-to-ipsilateral-intracranial-vasculopathy-case-report-and-literature-review
#5
Bo Chen, Wenchen Li, Lixiang Zhou, Shuanglin Fu, Haifeng Wang, Shuyan Zhang
BACKGROUND: Cranioplasty is a well-established surgical operation that is used worldwide for skull defect patients following decompressive craniectomy (DC). However, especially in some cases, fatal complications such as malignant cerebral swelling after uneventful cranioplasty should be attended to. CASE DESCRIPTION: We present a rare case of massive malignant ipsilateral cerebral swelling following uneventful titanium mesh cranioplasty due to rare ipsilateral intracranial vasculopathy confirmed by magnetic resonance angiography and magnetic resonance venography (MRA and MRV)...
August 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28776824/pathophysiology-of-reflex-syncope-a-review
#6
REVIEW
Wayne O Adkisson, David G Benditt
In this correspondence the pathophysiology of reflex syncope (vasovagal syncope, carotid sinus syndrome and situational syncope) is reviewed, including clarification of the nomenclature. This article is protected by copyright. All rights reserved.
August 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28768673/insidious-enemy-downside-to-prolonged-survival-in-prostate-cancer
#7
Vaishali Lodhia, Thevamalar Puspanathan
An 83-year-old man, a prostate cancer survivor of 10 years with multiple vertebral metastases presented with sudden onset of double vision. On examination he was found to have an isolated partial left abducens palsy with no other neurological deficits. Despite having microvascular risk factors, given his history of prostate cancer, aMRI brain scan was requested to look for a neurological cause. The scan revealed a metastatic lesion in the clivus encasing the cavernous sinus and carotid artery. He was referred to his oncologist for further management, however he opted out of further treatment and succumbed to his illness a month later...
August 2, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28764614/quantitative-evaluation-of-arteriovenous-malformation-hemodynamic-changes-after-endovascular-treatment-using-parametric-color-coding-a-case-series-study
#8
Rodrigo Rivera, Juan G Sordo, Daniel Echeverria, Lautaro Badilla, Camila Pinto, Catalina Merino-Osorio
Background Brain arteriovenous malformations (AVMs) are complex vascular lesions. Endovascular treatment results are usually measured by calculating the volume reduction of the lesions. Nevertheless, vascular flow quantification seems a more physiologically accurate way of measuring endovascular results. We evaluated the use of parametric color coding (PCC) with digital subtraction angiography (DSA), in order to determine the feasibility of PCC to detect and measure the impact of AVM endovascular treatment-induced changes using real-time hemodynamic parameters...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28751370/effects-of-different-input-pressure-waveforms-on-the-carotid-sinus-baroreflex-mediated-sympathetic-arterial-pressure-response-in-rats
#9
Toru Kawada, Shuji Shimizu, Hiromi Yamamoto, Tadayoshi Miyamoto, Atsunori Kamiya, Toshiaki Shishido, Masaru Sugimachi
Although the pulsatility of an input pressure is an important factor that determines the arterial baroreflex responses, whether the difference in the input waveforms can meaningfully affect the baroreflex function remains unknown. This study aimed to compare baroreflex responses between two distinct pressure waveforms: a forward saw wave (FSW) and a backward saw wave (BSW). In seven anesthetized rats, carotid sinus pressure (CSP) was exposed to the FSW or the BSW with a mean of 120 mmHg, pulse pressure of 40 mmHg, and pulse frequency of 1 Hz...
July 27, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28751013/termination-of-a-long-rp-supraventricular-tachycardia-by-carotid-sinus-massage
#10
Mohammed A M Ahmed, Lauren M Clark, Andrew Mardell, George D Veenhuyzen, Stephen B Wilton
Carotid sinus massage is a useful diagnostic and therapeutic maneuver in patients with supraventricular tachycardia. Abrupt tachycardia termination with carotid sinus massage typically indicates a mechanism dependent on the atrioventricular node. Here, we present the case of a 79-year-old patient presenting with a long-RP supraventricular tachycardia terminated with carotid sinus massage that was proven invasively to be due to a focal atrial tachycardia. We discuss mechanistic explanations for this unusual phenomenon and review the literature...
June 28, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28743241/complete-ophthalmoplegia-complete-ptosis-and-dilated-pupil-due-to-internal-carotid-artery-dissection-as-the-first-manifestation-of-takayasu-arteritis
#11
H M M T B Herath, S P Pahalagamage, D Withana, Sunethra Senanayake
BACKGROUND: Takayasu arteritis is a rare, chronic large vessel vasculitis involving the aorta and its primary branches. As the disease progresses, the active inflammation of large vessels leads to dilation, narrowing and occlusion of the arteries. Arterial dissection is due to separation of the layers of the arterial wall resulting in a false lumen, where blood seeps into the vessel wall. Neurological sequelae of intracranial arterial dissection results from cerebral ischemia due to thromboembolism and hypo perfusion...
July 25, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28740186/carotid-sinus-nerve-electrical-stimulation-in-conscious-rats-attenuates-systemic-inflammation-via-chemoreceptor-activation
#12
Fernanda Machado Santos-Almeida, Gean Domingos-Souza, César A Meschiari, Laura Campos Fávaro, Christiane Becari, Jaci A Castania, Alexandre Lopes, Thiago M Cunha, Davi J A Moraes, Fernando Q Cunha, Luis Ulloa, Alexandre Kanashiro, Geisa C S V Tezini, Helio C Salgado
Recent studies demonstrated a critical functional connection between the autonomic (sympathetic and parasympathetic) nervous and the immune systems. The carotid sinus nerve (CSN) conveys electrical signals from the chemoreceptors of the carotid bifurcation to the central nervous system where the stimuli are processed to activate sympathetic and parasympathetic efferent signals. Here, we reported that chemoreflex activation via electrical CSN stimulation, in conscious rats, controls the innate immune response to lipopolysaccharide attenuating the plasma levels of inflammatory cytokines such as tumor necrosis factor (TNF), interleukin 1β (IL-1β) and interleukin 6 (IL-6)...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28738798/efficacy-of-sellar-opening-in-the-pituitary-adenoma-resection-of-transsphenoidal-surgery-influences-the-degree-of-tumor-resection
#13
Shousen Wang, Yong Qin, Deyong Xiao, Liangfeng Wei
BACKGROUND: Endonasal transsphenoidal microsurgery is often adopted in the resection of pituitary adenoma, and has showed satisfactory treatment and minor injuries. It is important to accurately localize sellar floor and properly incise the bone and dura matter. METHODS: Fifty-one patients with pituitary adenoma undergoing endonasal transsphenoidal microsurgery were included in the present study. To identify the scope of sellar floor opening, CT scan of the paranasal sinus and MRI scan of the pituitary gland were performed for each subject...
July 24, 2017: BMC Medical Imaging
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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