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https://www.readbyqxmd.com/read/28318956/carotid-endarterectomy-to-remove-retained-solitaire-stent-retriever-inside-carotid-stent-after-mechanical-thrombectomy
#1
Mary In-Ping Huang Cobb, Tony P Smith, Patrick A Brown, L Fernando Gonzalez, Ali R Zomorodi
BACKGROUND: Tandem occlusions of the internal carotid artery (ICA) and middle cerebral artery (MCA) occur in up to a third of patients with acute ischemic strokes undergoing endovascular mechanical thrombectomy. Understanding open neurosurgical management of associated complications with this procedure is important. CASE REPORT: A 67-year-old man with acute onset of left hemiparesis and a tandem right ICA and MCA occlusion. He underwent carotid stent angioplasty of a stenotic ICA, followed by attempted Solitaire stent retrieval of an MCA clot...
March 16, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28248487/practical-stereochemistry
#2
Richard M Kellogg
The relationship between fundamental and applied is often uneasy, particularly in modern political climates. A familiar political view, aimed negatively at the scientific community, is that the former is a waste of money whereas the latter gives value for investment. The answer that fundamental is required as the basis for practical suffers from the fact that the timelines between fundamental and practical are often long and the routes contorted and unexpected. This has been my experience. In this Account, examples are given from the research in which I have been involved wherein quite fundamental considerations have led to various applications...
March 1, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28130166/triage-patterns-of-traumatic-subarachnoid-hemorrhage-is-referral-to-a-tertiary-care-center-necessary
#3
Marcus Gates, Grant Mallory, Ryan Planchard, Georgia Nothdurft, Christopher Graffeo, John Atkinson
OBJECT: Isolated traumatic subarachnoid hemorrhage in mild head injuries has growing evidence that triage to a tertiary care facility, ICU admission, and repeat imaging is not warranted. The authors try to identify certain factors that predict radiographic and clinical progression in hopes of preventing avoidable cost that occur with transfer and subsequent management. METHODS: A retrospective analysis identified 67 patients transferred between January 2010 and December 2014 who met inclusion criteria...
January 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28117563/patent-law-s-reproducibility-paradox
#4
Jacob S Sherkow
Clinical research faces a reproducibility crisis. Many recent clinical and preclinical studies appear to be irreproducible--their results cannot be verified by outside researchers. This is problematic for not only scientific reasons but also legal ones: patents grounded in irreproducible research appear to fail their constitutional bargain of property rights in exchange for working disclosures of inventions. The culprit is likely patent law’s doctrine of enablement. Although the doctrine requires patents to enable others to make and use their claimed inventions, current difficulties in applying the doctrine hamper or even actively dissuade reproducible data in patents...
January 2017: Duke Law Journal
https://www.readbyqxmd.com/read/28095326/additive-antithrombotic-effect-of-asp6537-a-selective-cyclooxygenase-cox-1-inhibitor-in-combination-with-clopidogrel-in-guinea-pigs
#5
Chinatsu Sakata, Ken-Ichi Suzuki, Yoshiaki Morita, Tomihisa Kawasaki
Clopidogrel (Plavix(®), Sanofi-Aventis), the adenosine diphosphate P2Y12 receptor antagonist, is reported to be effective in the prevention of cardiovascular events and is often used in combination with aspirin, particularly in high-risk patients. ASP6537 is a reversible cyclooxygenase (COX)-1 inhibitor that is under investigation as an anti-platelet agent. First, we investigated the reversibility of the antiplatelet effect of ASP6537 and its interaction with ibuprofen to compare the usability of ASP6537 with that of aspirin...
January 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28054898/pump-thrombosis-following-heartmate-ii-left-ventricular-assist-device-implantation-in-a-patient-with-aspirin-and-plavix-resistance
#6
Ali Ghodsizad, A Badiye, M Zeriouh, W Pae, M M Koerner, M Loebe
Despite advances in pump technology, thromboembolic events and pump thrombosis are potentially life-threatening complications in patients with continuous flow ventricular assist devices. Here we describe a patient with pump thrombosis following LVAD HeartMate II implantation presenting with Aspirin and Plavix resistance and signs of acute hemolysis as manifested by high LDH, changing pump power, pulse index and reduced pump flows.
December 14, 2016: Heart Surgery Forum
https://www.readbyqxmd.com/read/27863918/discontinuation-of-plavix-%C3%A2-clopidogrel-for-hip-fracture-surgery-a-systematic-review-of-the-literature
#7
REVIEW
L Mattesi, T Noailles, N Rosencher, J-L Rouvillain
The elderly population is increasing worldwide, associated with an increase in diseases related to aging, such as hip fractures. These patients are sometimes treated with clopidogrel. There are no arguments at present to clearly determine the risk/benefit ratio of early surgical management of traumatic hip fractures in patients treated with clopidogrel (perioperative blood loss, postoperative complications). The goal of this systematic review of the literature was to show that early surgical management (<48h) of patients treated with clopidogrel does not increase postoperative morbidity or mortality...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27597810/prasugrel-results-in-higher-decrease-in-high-sensitivity-c-reactive-protein-level-in-patients-undergoing-percutaneous-coronary-intervention-comparing-to-clopidogrel
#8
Shokoufeh Hajsadeghi, Mandana Chitsazan, Mitra Chitsazan, Negar Salehi, Ahmad Amin, Arash Amin Bidokhti, Nima Babaali, Armin Bordbar, Maral Hejrati, Samar Moghadami
OBJECTIVES: A growing body of clinical and laboratory evidence indicates that inflammation plays a crucial role in atherosclerosis. In the present study, we compared the effects of clopidogrel and prasugrel on high-sensitivity C-reactive protein (hs-CRP) in patients undergoing percutaneous coronary intervention (PCI). METHODS: The present randomized, double-blind clinical trial included 120 patients who underwent PCI. Eligible patients were randomly assigned 2:1 to one of the two groups: 80 patients in the first group received clopidogrel (Plavix(®); loading dose and maintenance dose of 300 and 75 mg daily, respectively) and 40 patients in the second group received prasugrel (Effient(®); loading dose and maintenance dose of 60 and 10 mg, respectively) for 12 weeks...
2016: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/27595478/aspirin-plavix-and-other-antiplatelet-medications-what-the-oral-and-maxillofacial-surgeon-needs-to-know
#9
REVIEW
Andre E Ghantous, Elie M Ferneini
Most patients with coronary artery disease and peripheral vascular disease are on long-term antiplatelet therapy and dual therapy. Achieving a balance between ischemic and bleeding risk remains an important factor in managing patients on antiplatelet therapy. For most outpatient surgical procedures, maintenance and continuation of this therapy are recommended. Consultation with the patient's cardiologist, physician, and/or vascular surgeon is always recommended before interrupting or withholding this treatment modality...
November 2016: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/27484348/implementing-shared-decision-making-in-federally-qualified-health-centers-a-quasi-experimental-design-study-the-office-guidelines-applied-to-practice-office-gap-program
#10
Adesuwa Olomu, William Hart-Davidson, Zhehui Luo, Karen Kelly-Blake, Margaret Holmes-Rovner
BACKGROUND: Use of Shared Decision-Making (SDM) and Decision Aids (DAs) has been encouraged but is not regularly implemented in primary care. The Office-Guidelines Applied to Practice (Office-GAP) intervention is an application of a previous model revised to address guidelines based care for low-income populations with diabetes and coronary heart disease (CHD). OBJECTIVE: To evaluate Office-GAP Program feasibility and preliminary efficacy on medication use, patient satisfaction with physician communication and confidence in decision in low-income population with diabetes and coronary heart disease (CHD) in a Federally Qualified Healthcare Center (FQHC)...
2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27128595/clinical-utility-and-cost-analysis-of-routine-postoperative-head-ct-in-elective-aneurysm-clippings
#11
Corinna C Zygourakis, Ethan Winkler, Lawrence Pitts, Lisa Hannegan, Benjamin Franc, Michael T Lawton
OBJECTIVE Postoperative head CT scanning is performed routinely at the authors' institution on all neurosurgical patients after elective aneurysm clippings. The goal of this study was to determine how often these scans influence medical management and to quantify the associated imaging costs. METHODS The authors reviewed the medical records and accounting database of 304 patients who underwent elective (i.e., nonruptured) aneurysm clipping performed by 1 surgeon (M.T.L.) from 2010 to 2014 at the University of California, San Francisco...
February 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27016908/continued-antiplatelet-therapy-and-risk-of-bleeding-in-gastrointestinal-procedures-a-systematic-review
#12
REVIEW
Xiao Fang, Jacques G Baillargeon, Daniel C Jupiter
BACKGROUND: Management of perioperative antiplatelet medications in gastrointestinal (GI) surgery is challenging. The risk of intraoperative and postoperative bleeding is associated with perioperative use of antiplatelet medication. However, cessation of these drugs may be unsafe for patients who are required to maintain antiplatelet use due to cardiovascular conditions. The objective of this systematic review was to compare the risk of intraoperative or postoperative bleeding among patients who had GI surgery while on continuous antiplatelet therapy (aspirin, clopidogrel, or dual therapy) with the risk among those not taking continuous antiplatelet medication...
May 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/26975576/bleeding-after-tooth-extraction-in-patients-taking-aspirin-and-clopidogrel-plavix%C3%A2-compared-with-healthy-controls
#13
Mohsen Sadeghi-Ghahrody, Seyed Hamid Yousefi-Malekshah, Hamidreza Karimi-Sari, Hamid Yazdanpanah, Mohammad Saeid Rezaee-Zavareh, Mohammadhosein Yavarahmadi
The risk of perioperative bleeding is high in patients who take aspirin and clopidogrel after a percutaneous coronary intervention, and whether to stop the drugs is a matter of concern for dentists. The aim of this study was to answer the specific question: should aspirin and clopidogrel bisulphate (Plavix®) be discontinued during a conventional forceps extraction? We studied 64 patients during the first year after percutaneous insertion of coronary stents who were taking aspirin (ASA) 80mg and clopidogrel (Plavix(®)) 75mg, and 50 healthy patients who were to have a conventional forceps extraction at this polyclinic in 2013-2014 and acted as controls...
June 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/26910300/self-powered-microfluidic-device-for-rapid-assay-of-antiplatelet-drugs
#14
Bincy Jose, Peter McCluskey, Niamh Gilmartin, Martin Somers, Dermot Kenny, Antonio J Ricco, Nigel J Kent, Lourdes Basabe-Desmonts
We report the development of a microfluidic device for the rapid assay in whole blood of interfacial platelet-protein interactions indicative of the efficacy of antiplatelet drugs, for example, aspirin and Plavix, two of the world's most widely used drugs, in patients with cardiovascular disease (CVD). Because platelet adhesion to surface-confined protein matrices is an interfacial phenomenon modulated by fluid shear rates at the blood/protein interface, and because such binding is a better indicator of platelet function than platelet self-aggregation, we designed, fabricated, and characterized the performance of a family of disposable, self-powered microfluidic chips with well-defined flow and interfacial shear rates suitable for small blood volumes (≤200 μL)...
March 22, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/26889454/changes-of-high-sensitivity-c-reactive-protein-during-clopidogrel-therapy-in-patients-undergoing-percutaneous-coronary-intervention
#15
Shokoufeh Hajsadeghi, Mandana Chitsazan, Mitra Chitsazan, Negar Salehi, Ahmad Amin, Majid Maleki, Nima Babaali, Seifollah Abdi, Maryam Mohsenian
BACKGROUND: The crucial role of inflammation in the development and progression of atherosclerosis has been previously described. However, there is insufficient data available to demonstrate the changes in high sensitivity C-reactive protein (hs-CRP) during clopidogrel therapy. OBJECTIVES: In the present study, we aimed to assess the changes in the inflammatory marker of coronary heart disease, i.e., hs-CRP during clopidogrel therapy, in patients undergoing percutaneous coronary intervention (PCI)...
February 2016: Research in Cardiovascular Medicine
https://www.readbyqxmd.com/read/26860124/vorapaxar-monotherapy-for-secondary-stroke-prevention-a-call-for-randomized-trial
#16
Victor L Serebruany, Moo H Kim, Daniel F Hanley
BACKGROUND AND PURPOSE: Vorapaxar, a novel platelet thrombin protease-activated receptor 1 blocker, is currently approved for post-myocardial infarction and peripheral artery disease indications on top of clopidogrel or/and aspirin. We sought to summarize the conflicting stroke data after vorapaxar for justifying a secondary stroke prevention trial. METHODS: Analyses of the stroke data after vorapaxar yielded from thrombin-receptor antagonist vorapaxar in acute coronary syndromes (TRACER) and TRA2P clinical trials, and affiliated Food and Drug Administration (FDA) reviews...
August 2016: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/26802855/delineation-of-criteria-for-admission-to-step-down-in-the-mild-traumatic-brain-injury-patient
#17
James M Bardes, Jason Turner, Patrick Bonasso, Gerald Hobbs, Alison Wilson
Patients that suffer a mild traumatic brain injury (TBI) with intracranial hemorrhage are commonly admitted to an intensive care unit with repeat imaging in 12 to 24 hours. This is costly to the health-care system. This study aimed to evaluate this practice and to identify criteria to triage patients to lower levels of monitored care. A retrospective review was performed at a university-based Level I trauma center. Patients with mild TBI were included. Data were collected on demographics, neurological status at 6, 12, and 24 hours, CT scan results, and medical or surgical interventions were required...
January 2016: American Surgeon
https://www.readbyqxmd.com/read/26798754/ruptured-pneumococcal-aortic-aneurysm-presenting-as-st-elevation-myocardial-infarction-case-report-and-literature-review
#18
Xiaoyue Mona Guo, Pramod Bonde
Ruptured mycotic aneurysms occur infrequently in current clinical practice, and a pneumococcal etiology is even more rare. This case report describes a patient who initially presented with catheter lab activation for an acute ST-elevation myocardial infarction, receiving a full Plavix load. She was subsequently found to have a ruptured aortic aneurysm and underwent emergency surgical repair, with intraoperative findings of an aorta seeded with Streptococcus pneumonia. A retrospective evaluation of her history revealed clues of a previous upper respiratory infection and long-standing back pain...
February 2015: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/26790032/portal-vein-thrombosis-and-arterioportal-shunting-due-to-chronic-cholangitis-a-rare-complication-of-living-donor-liver-transplant
#19
Chia-En Hsieh, Chen-Te Chou, Chia-Cheng Lin, Chia-Bang Chen, Kuo-Hua Lin, Ping-Yi Lin, Yao-Li Chen
OBJECTIVES: We present a patient with portal vein thrombosis due to chronic cholangitis after undergoing a living-donor liver transplant. CASE PRESENTATION: A 52-year-old woman with a history of hepatitis B virus-related liver cirrhosis underwent a living-donor liver transplant. After the surgery, the patient had recurrent episodes of cholangitis because of common and intrahepatic bile duct stricture. Biliary stricture because of cholangitis eventually resulted in acute portal vein thrombosis...
January 20, 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/26566105/vorapaxar-for-secondary-stroke-prevention-perspectives-and-obstacles
#20
Victor L Serebruany, Moo Hyun Kim, Seth D Fortmann, Dan F Hanley
Vorapaxar, a novel antiplatelet thrombin protease-activated receptor 1 (PAR-1) inhibitor, has been evaluated in the successful TRA2P trial and failed TRACER trial. The drug is currently approved for post myocardial infarction and peripheral artery disease indications on top of clopidogrel and/or aspirin. The stroke data after vorapaxar are mixed, dominated with heavy excess of intracranial bleeding risks and slightly worsened second stroke rates, but show less primary ischemic strokes. Fortunately, these conflicting data do not belong purely to vorapaxar per se but rather, reflect unreasonably aggressive strategies, including predominantly triple antiplatelet therapy, utilized in both Trial to Assess the Effects of SCH 530348 in Preventing Heart Attack and Stroke in Patients with Arteriosclerosis (TRA2P) and especially in Thrombin-Receptor Antagonist Vorapaxar in Acute Coronary Syndromes (TRACER)...
2015: Expert Review of Neurotherapeutics
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