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https://www.readbyqxmd.com/read/29232299/the-axillary-intra-aortic-balloon-pump-as-a-bridge-to-recovery-allows-early-ambulation-in-long-term-use-case-series-and-literature-review
#1
Nnamdi Nwaejike, Andre Y Son, Chetan B Patel, Jacob N Schroder, Carmelo A Milano, Mani A Daneshmand
We evaluated the feasibility, tolerability, and efficacy of a strategy for transaxillary artery intra-aortic balloon pump placement for extended mechanical circulatory support of patients with postcardiotomy shock as a bridge to recovery. Patients requiring prolonged intra-aortic balloon pump support for postcardiotomy heart failure were identified. Intra-aortic balloon pump was tunneled through a 6-mm Dacron graft anastomosed to the right axillary artery. The intra-aortic balloon pump catheter is advanced under fluoroscopic guidance into the descending thoracic aorta...
December 7, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/29231794/intracranial-contrast-transit-times-on-digital-subtraction-angiography-decrease-more-in-patients-with-delayed-intraparenchymal-hemorrhage-after-pipeline
#2
Denise Brunozzi, Sophia F Shakur, Fady T Charbel, Ali Alaraj
Background Pipeline embolization devices (PEDs) are used for endovascular treatment of cerebral aneurysms but can be associated with delayed ipsilateral intraparenchymal hemorrhage (DIPH). Changes in intracranial hemodynamics after PED are poorly understood. Objective Here, we assess hemodynamic changes after PED in patients and compare these changes in patients with and without DIPH (DIPH+ and DIPH-). Methods Records of patients with distal internal carotid artery (ICA) aneurysms treated with PED at our institution between 2012 and 2017 were retrospectively reviewed...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29231236/relevance-of-the-cerebral-collateral-circulation-in-ischaemic-stroke-time-is-brain-but-collaterals-set-the-pace
#3
Simon Jung, Roland Wiest, Jan Gralla, Richard McKinley, Heinrich Mattle, David Liebeskind
Blood supply to the brain is secured by an extensive collateral circulation system, which can be divided into primary routes, i.e., the Circle of Willis, and secondary routes, e.g., collaterals from the external to the internal carotid artery and leptomeningeal collaterals. Collateral flow is the basis for acute stroke treatment, since neurones will only survive long enough to be rescued with reperfusion therapies if there is sufficient collateral flow. Poor collateral flow is associated with worse outcome and faster growth of larger infarcts in acute stroke treatment...
December 12, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29229867/intracranial-pulsatility-in-patients-with-cerebral-small-vessel-disease-a-systematic-review
#4
Yulu Shi, Michael J Thrippleton, Ian Marshall, Joanna M Wardlaw
Growing evidence suggests that increased intracranial pulsatility is associated with cerebral small vessel disease (SVD). We systematically reviewed papers that assessed intracranial pulsatility in subjects with SVD. We included 27 cross-sectional studies (n=3356): 20 used Doppler ultrasound and 7 used phase-contrast MRI. Most studies measured pulsatility in the internal carotid or middle cerebral arteries (ICA, MCA), whereas few assessed veins or cerebrospinal fluid (CSF). Methods to reduce bias and risk factor adjustment were poorly reported...
December 11, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29227793/bilateral-traumatic-caroticocavernous-fistulas-a-case-report-and-review-of-the-literature
#5
Lorna Leandro, Giovanni Dolci, Satheesh Prabhu, Rufus Corkill
A traumatic caroticocavernous fistula (CCF) is an acquired, abnormal communication between the internal carotid artery and the cavernous sinus, secondary to trauma. This rare condition can initially be misdiagnosed, because its presentation shares features common to those of facial trauma, which can result in serious complications. We describe a case of bilateral CCF in an adult patient after a road traffic accident.
November 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29222799/middle-cerebral-artery-occlusion-by-an-intraluminal-suture-method
#6
Rosalia Crupi, Rosanna Di Paola, Emanuela Esposito, Salvatore Cuzzocrea
Stroke represents the most common fatal neurological disease especially in highly developed countries. Even today, treatment options are very limited. The development of new therapeutic approaches replies, to a great extent, on experimental rodent models of focal cerebral ischemia. Since ~80% of ischemic strokes occur in the area of middle cerebral artery (MCA), a number of these stroke models are based on this artery. The intraluminal monofilament model of MCA occlusion involves the insertion of a surgical filament inside the external carotid artery and its extension into the internal carotid artery until the tip occludes the source of the MCA-thus arresting blood flow with resultant infarction in the MCA area...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29222393/protect-proximal-balloon-occlusion-together-with-direct-thrombus-aspiration-during-stent-retriever-thrombectomy-evaluation-of-a-double-embolic-protection-approach-in-endovascular-stroke-treatment
#7
Christian Maegerlein, Sebastian Moench, Tobias Boeckh-Behrens, Manuel Lehm, Dennis M Hedderich, Maria Teresa Berndt, Silke Wunderlich, Claus Zimmer, Johannes Kaesmacher, Benjamin Friedrich
PURPOSE: Stent retriever-based mechanical thrombectomy (MT) for emergent large vessel occlusions (ELVO) is often complicated by thrombus fragmentation causing distal embolization and embolization to new vascular territories. Well-established embolic protection approaches include proximal flow arrest and distal aspiration techniques during stent retriever maneuvers. Aiming at the reduction of thrombus fragmentation during MT we evaluated a technical approach combining proximal balloon occlusion together with direct thrombus aspiration during MT: the PROTECT technique...
December 8, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29219792/-unilateral-blindness-following-a-non-surgical-rhinoplasty-with-filler
#8
L W Schelke, M Fick, L J van Rijn, T Decates, P J Velthuis, F Niessen
BACKGROUND: A rare but known adverse event following a cosmetic filler treatment is unilateral blindness. In the Netherlands, this complication has not been reported in a patient before. CASE DESCRIPTION: A 26-year-old woman developed unilateral blindness after undergoing a cosmetic treatment of the dorsum nasi in which hyaluronic acid was used as filler. The blindness was caused by backflow of the filler via the ophthalmic artery into the carotid internal artery...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29219755/mitochondrial-abnormalities-related-to-the-dysfunction-of-circulating-endothelial-colony-forming-cells-in-moyamoya-disease
#9
Jung Won Choi, Sung Min Son, Inhee Mook-Jung, Youn Joo Moon, Ji Yeoun Lee, Kyu-Chang Wang, Hyun-Seung Kang, Ji Hoon Phi, Seung Ah Choi, Sangjoon Chong, Jayoung Byun, Seung-Ki Kim
OBJECTIVE Moyamoya disease (MMD) is a unique cerebrovascular disorder characterized by the progressive occlusion of the bilateral internal carotid arteries. Endothelial colony-forming cells (ECFCs), previously termed "endothelial progenitor cells," play an important role in the pathogenesis of MMD. In this study, the authors performed morphological and functional studies of the mitochondria of ECFCs from patients with MMD to present new insights into the pathogenesis of the disease. METHODS The morphology of ECFCs from 5 MMD patients and 5 healthy controls was examined under both a transmission electron microscope and a confocal laser scanning microscope...
December 8, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29218385/bilateral-carotid-anterior-cerebral-artery-anastomoses-associated-with-bilateral-ophthalmic-arteries-arising-from-the-anastomotic-arteries-diagnosed-by-magnetic-resonance-angiography-a-case-report
#10
Akira Uchino, Naoko Saito, Norio Tanahashi
Rarely, the anterior cerebral artery (ACA) arises from the ophthalmic segment of the internal carotid artery, a condition described as carotid-ACA anastomosis or infraoptic course of the ACA that generally demonstrates right-sided predominance. We diagnosed a case of bilateral anastomoses of the carotid and ACA vessels in which bilateral ophthalmic arteries arose from the origins of the anastomotic vessels using magnetic resonance (MR) angiography. Identification of rare arterial variations on MR angiography requires careful scrutiny of source images, and creation of partial volume-rendering images can aid visualization of detailed anatomic structures...
December 7, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29218256/intracranial-anatomical-triangles-a-comprehensive-illustrated-review
#11
REVIEW
Doniel Drazin, Joy Mh Wang, Fernando Alonso, Daxa M Patel, Andre Granger, Mohammadali M Shoja, Marios Loukas, Rod J Oskouian, R Shane Tubbs
There are multiple anatomical triangles of the skull base. However, to our knowledge, there has been no comprehensive review of these geometric landmarks. To allow for a safe and consistent approach to lesions of the skull base such as those near the internal carotid artery, internal acoustic meatus, and cavernous sinus, a comprehensive review of the variations with illustrations is required. This article provides an overview of the anatomical borders, dimensions, and surgical implications as well as illustrations of the major skull base triangles...
October 4, 2017: Curēus
https://www.readbyqxmd.com/read/29217748/lower-arterial-cross-sectional-area-of-carotid-and-vertebral-arteries-and-higher-frequency-of-secondary-neck-vessels-are-associated-with-multiple-sclerosis
#12
P Belov, D Jakimovski, J Krawiecki, C Magnano, J Hagemeier, L Pelizzari, B Weinstock-Guttman, R Zivadinov
BACKGROUND AND PURPOSE: Arterial and neck vessel system characteristics of patients with multiple sclerosis have not been previously investigated. Therefore, the aim of this study was to examine the frequency of neck vessels and their cross-sectional areas (in square millimeters) between patients with MS and healthy controls. MATERIALS AND METHODS: In this study, 193 patients with MS and 193 age- and sex-matched healthy controls underwent 2D TOF venography at 3T...
December 7, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29214780/mismatch-between-tof-mr-angiography-and-ct-angiography-of-the-middle-cerebral-artery-may-be-a-critical-sign-in-cerebrovascular-dynamics
#13
Keiji Igase, Michiya Igase, Ichiro Matsubara, Kazuhiko Sadamoto
PURPOSE: Although time-of-flight (TOF)-magnetic resonance angiography (MRA) can clearly depict intracranial arteries, the arterial flow of middle cerebral artery (MCA) is occasionally not detected. We evaluated this phenomenon with reference to cerebrovascular dynamics. MATERIALS AND METHODS: Seventeen patients with suspected occlusion of MCA or internal carotid artery on TOF-MRA were enrolled. All patients underwent CT angiography (CTA) and quantitative cerebral blood flow (CBF) examination for measurement of resting CBF and cerebrovascular reactivity (CVR)...
January 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29211048/imaging-characteristics-of-malignant-sinonasal-tumors
#14
REVIEW
Masaya Kawaguchi, Hiroki Kato, Hiroyuki Tomita, Keisuke Mizuta, Mitsuhiro Aoki, Akira Hara, Masayuki Matsuo
Malignancies of the nasal cavity and paranasal sinuses account for 1% of all malignancies and 3% of malignancies of the upper aerodigestive tract. In the sinonasal tract, nearly half of all malignancies arise in the nasal cavity, whereas most of the remaining malignancies arise in the maxillary or ethmoid sinus. Squamous cell carcinoma is the most common histological subtype of malignant tumors occurring in this area, followed by other epithelial carcinomas, lymphomas, and malignant soft tissue tumors. Although many of these tumors present with nonspecific symptoms, each tumor exhibits characteristic imaging features...
December 6, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29209949/18f-fdg-pet-ct-for-the-quantification-of-inflammation-in-large-carotid-artery-plaques
#15
Kjersti Johnsrud, Karolina Skagen, Therese Seierstad, Mona Skjelland, David Russell, Mona-Elisabeth Revheim
BACKGROUND: There is currently no consensus on the methodology for quantification of 18F-FDG uptake in inflammation in atherosclerosis. In this study, we explore different methods for quantification of 18F-FDG uptake in carotid atherosclerotic plaques and correlate the uptake values to histological assessments of inflammation. METHODS AND RESULTS: Forty-four patients with atherosclerotic stenosis ≥70% of the internal carotid artery underwent 18F-FDG PET/CT. Maximum standardized uptake values (SUVmax) from all plaque-containing slices were collected...
December 5, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29208850/carotid-artery-stenosis-contralateral-to-acute-tandem-occlusion-an-independent-predictor-of-poor-clinical-outcome-after-mechanical-thrombectomy-with-concomitant-carotid-artery-stenting
#16
Volker Maus, Daniel Behme, Jan Borggrefe, Christoph Kabbasch, Fatih Seker, Cicek Hüseyin, Utako Birgit Barnikol, Leonard Leong Litt Yeo, Patrick Brouwer, Michael Söderman, Markus Möhlenbruch, Marios Nikos Psychogios, Thomas Liebig, Christian Dohmen, Gereon Rudolf Fink, Anastasios Mpotsaris
BACKGROUND AND PURPOSE: Cerebral ischemic strokes due to extra-/intracranial tandem occlusions (TO) of the anterior circulation are responsible for causing mechanical thrombectomy (MT). The impact of concomitant contralateral carotid stenosis (CCS) upon outcome remains unclear in this stroke subtype. METHODS: Retrospective analysis of prospectively collected data of 4 international stroke centers between 2011 and 2017. One hundred ninety-seven consecutive patients with anterior TO were treated with MT and acute carotid artery stenting (CAS)...
November 24, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/29205895/arterial-distribution-to-the-pelvic-cavity-and-pelvic-limb-in-the-pampas-deer-ozotoceros-bezoarticus-linnaeus-1758
#17
N Vazquez, C Ríos, V Sorriba, W Pérez
This research is a study about the arterial vascularization of pelvic cavity and pelvic limb in pampas deer. For this study, 25 dead animals were used. The vascularization of the organs was investigated using a latex injection technique. Two animals were injected in the common carotid artery with contrast to cardiac angiography, and then, radiographs were taken. The aorta showed the two external iliac arteries, and after a short course, the aorta ended in two internal iliac arteries. The median sacral artery was originated from the dorsal surface cranially to the emergence of the internal iliac arteries...
December 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29205670/neck-vessel-cross-sectional-area-measured-with-mri-scan-rescan-reproducibility-for-longitudinal-evaluations
#18
Laura Pelizzari, Maria Marcella Laganà, Dejan Jakimovski, Niels Bergsland, Jesper Hagemeier, Giuseppe Baselli, Robert Zivadinov
BACKGROUND AND PURPOSE: The cross-sectional area (CSA) of common carotid arteries-internal carotid arteries (CCA-ICAs), vertebral arteries (VAs), and internal jugular veins (IJVs) is influenced by aging. However, the neck vessel CSA can be affected by other factors as well, including subject positioning, hydration, and respiration, especially in longitudinal studies. This study aimed to assess scan-rescan reproducibility of CCA-ICAs, VAs, and IJVs CSA measurements in order to evaluate their feasibility for longitudinal CSA assessments, and to apply the segmentation method on a longitudinal pilot dataset...
December 4, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29205172/a-data-driven-approach-for-addressing-the-lack-of-flow-waveform-data-in-studies-of-cerebral-arterial-flow-in-older-adults
#19
Michael J Durka, Isaac Hong Wong, David F Kallmes, Dario Pasalic, Fernando Mut, Manoj Jagani, Pablo J Blanco, Juan R Cebral, Anne M Robertson
Blood flow waveforms - essential data for hemodynamic modeling - are often in practice unavailable to researchers. The objectives of this work were to assess the variability among the waveforms for a clinically relevant older population, and develop data-based methods for addressing the missing waveform data for hemodynamic studies. Approach: We analyzed 272 flow waveforms from the internal carotid arteries of older patients (73±13 years) with moderate cardiovascular disease, and used these data to develop approaches to guide new approaches for hemodynamic studies...
December 5, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/29204653/national-patterns-of-carotid-revascularization-before-and-after-the-carotid-revascularization-endarterectomy-vs-stenting-trial-crest
#20
Fadar Oliver Otite, Priyank Khandelwal, Amer M Malik, Seemant Chaturvedi
Importance: The Carotid Revascularization Endarterectomy vs Stenting Trial (CREST) showed greater safety of carotid artery stenting (CAS) in patients younger than 70 years and carotid endarterectomy (CEA) in those older than 70 years. It is unknown how the result of CREST has influenced carotid revascularization choices in the United States. Objective: To evaluate national patterns in CAS performance in patients older than 70 years in the post-CREST (2011-2014) compared with the pre-CREST (2007-2010) era...
December 4, 2017: JAMA Neurology
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