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https://www.readbyqxmd.com/read/28808799/transorbital-endoscopic-approach-for-exposure-of-the-sylvian-fissure-middle-cerebral-artery-and-crural-cistern-an-anatomical-study
#1
João Paulo Almeida, Armando S Ruiz-Treviño, Sathwik R Shetty, Sacit B Omay, Vijay K Anand, Theodore H Schwartz
BACKGROUND: The availability of minimal access instrumentation and endoscopic visualization has revolutionized the field of minimally invasive skull base surgery. The transorbital endoscopic approach using an eyelid incision has been proposed as a new minimally invasive technique for the treatment of skull base pathology, mostly extradural tumors. Our study aims to evaluate the anatomical aspects and potential role of the transorbital endoscopic approach for exposure of the sylvian fissure, middle cerebral artery and crural cistern...
August 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28805949/the-reversible-p2y12-antagonist-act-246475-causes-significantly-less-blood-loss-than-ticagrelor-at-equivalent-antithrombotic-efficacy-in-rat
#2
Markus Rey, Markus Kramberg, Patrick Hess, Keith Morrison, Roland Ernst, Franck Haag, Edgar Weber, Martine Clozel, Martine Baumann, Eva Caroff, Francis Hubler, Markus A Riederer, Beat Steiner
The P2Y12 receptor is a validated target for prevention of major adverse cardiovascular events in patients with acute coronary syndrome. The aim of this study was to compare two direct-acting, reversible P2Y12 antagonists, ACT-246475 and ticagrelor, in a rat thrombosis model by simultaneous quantification of their antithrombotic efficacy and surgery-induced blood loss. Blood flow velocity was assessed in the carotid artery after FeCl3 -induced thrombus formation using a Doppler flow probe. At the same time, blood loss after surgical wounding of the spleen was quantified...
October 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28805772/-diagnosis-and-treatment-of-extracranial-internal-carotid-artery-lesion-combined-with-cerebrovascular-malformation
#3
A I Khripun, A D Pryamikov, A B Mironkov, S A Asratyan, I N Tyurin, V S Suryakhin, M V Abashin, V P Mikhaylenko
AIM: To analyze own experience of diagnosis and treatment of patients with extracranial internal carotid artery lesion and cerebrovascular malformations. MATERIAL AND METHODS: There were 16 patients with combined lesion of extracranial and intracranial internal carotid artery for the period January 2013 - December 2014. Occlusive-stenotic lesion and tortuosity of ICA were observed in 11 and 5 cases respectively. RESULTS: Incidence of combined ICA lesion was 5...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28804624/carotid-endarterectomy-for-in-stent-restenosis-a-case-report-and-literature-review
#4
Baofeng Xu, Rui Liu, Liqun Jiao, Jinlu Yu
It is relatively difficult to treat restenosis when restenosis occurs following carotid artery stenting. Endarterectomy with simultaneous stent removal is an effective approach when restenosis occurs. The treatment method is still not well known. The present paper reports a case of restenosis after stenting that was treated with endarterectomy with a satisfactory treatment outcome. The patient, a 74-year-old male, underwent stenting 10 months before he was re-hospitalized. He seemed to recover well after stenting until one month before he was re-hospitalized, when he presented symptoms of cerebral ischemia...
August 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28804607/effects-of-buprenorphine-in-the-adrenal-thyroid-and-cytokine-intra-operative-responses-in-a-rat-model-rattus-norvegicus-a-preliminary-study
#5
Nuno M Félix, Rodolfo O Leal, I Goy-Thollot, Ronald S Walton, Solange A Gil, Luísa M Mateus, Ana S Matos, Maria M R E Niza
OBJECTIVES: Buprenorphine is a common analgesic in experimental research, due to effectiveness and having few side-effects, including a limited influence in the immune and endocrine systems. However, how buprenorphine affects cytokine levels and the adrenal and thyroid response during general anesthesia and surgery is incompletely understood. This study aimed to assess whether buprenorphine modulated significantly those responses in rats submitted to general anesthesia, mechanical ventilation, and surgical insertion of intravascular catheters...
April 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28803396/early-regression-of-carotid-intima-media-thickness-after-bariatric-surgery-and-its-relation-to-serum-leptin-reduction
#6
G Lambert, Marcelo Miranda de Oliveira Lima, A C Felici, J C Pareja, A C J Vasques, F S Novaes, S Rodovalho, F F P Hirsch, J R Matos-Souza, Élinton A Chaim, B Geloneze
PURPOSE: Bariatric surgery (BS) promotes carotid intima-media thickness (C-IMT) regression as early as 6 months post-surgery. To verify whether C-IMT regression occurs even earlier, we aimed at the effect of Roux-en-Y gastric bypass (RYGBP) and biliopancreatic diversion (BPD) on C-IMT 1-2 months and 12 months post-surgery. SUBJECTS/METHODS: Prospective trial. BS was performed on 109 patients either with (RYGBP = 42; BDP = 40) or without type 2 diabetes (RYGBP = 27)...
August 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28798784/comparison-of-closed-cell-and-hybrid-cell-stent-designs-in-carotid-artery-stenting-clinical-and-procedural-outcomes
#7
Ersan Tatli, Alptug Tokatli, Mehmet Bulent Vatan, Mustafa Tarik Agac, Huseyin Gunduz, Ramazan Akdemir, Harun Kilic
INTRODUCTION: Carotid artery stenting (CAS) is a promising alternative to surgery in high-risk patients. However, the impact of stent cell design on outcomes in CAS is a matter of continued debate. AIM: To compare the periprocedural and clinical outcomes of different stent designs for CAS with distal protection devices. MATERIAL AND METHODS: All CAS procedures with both closed- and hybrid-cell stents performed at our institution between February 2010 and December 2015 were analyzed retrospectively...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28794365/successful-delayed-aortic-surgery-for-a-patient-with-ischemic-stroke-secondary-to-aortic-dissection
#8
Ryuta Morihara, Toru Yamashita, Kentaro Deguchi, Keiichiro Tsunoda, Yasuhiro Manabe, Yoshiaki Takahashi, Taijun Yunoki, Kota Sato, Yumiko Nakano, Syoichiro Kono, Yasuyuki Ohta, Nozomi Hishikawa, Koji Abe
The diagnosis of aortic dissection (AD) is sometimes difficult within the limited time window of recombinant tissue plasminogen activator (tPA) for ischemic stroke (IS). A 60-year-old man developed sudden left hemiparesis due to IS. During tPA infusion, his blood pressure dropped and consciousness declined. After transfer to our hospital, carotid duplex ultrasonography led to a diagnosis of AD. Emergency surgery was postponed because of the risk of hemorrhagic transformation. The patient successfully underwent aortic surgery on day 5 and was discharged with a remarkable improvement in his symptoms...
August 10, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28790541/critical-carotid-artery-stenosis-in-coronary-and-non-coronary-patients-frequency-of-risk-factors
#9
Haris Vranic, Amel Hadzimehmedagic, Ilirijana Haxibeqiri-Karabdic, Ermina Mujacic, Muhamed Djedovic
INTRODUCTION: Stroke is one of the largest socio medical problems of modern times. In addition to the third leading cause of death, it is the first cause of non-trauma disability. Numerous studies show a correlation of risk factors and arteriosclerotic lesions in the coronary arteries and carotid arteries. PATIENTS AND METHODS: Study was conducted at the Clinical Center University of Sarajevo, Clinic for Cardiology surgery, methodologically cross-sectional study and partly manipulative and clinical prevention study, conducted on a representative sample of 100 patients...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28790536/comparison-of-results-classical-and-eversion-carotid-endarterectomy
#10
Muhamed Djedovic, Emir Mujanovic, Amel Hadzimehmedagic, Dragan Totic, Haris Vukas, Haris Vranic
INTRODUCTION: Atherosclerosis blood vessels, be it on extra-cranial or intra-cranial circulation, the most common cause of incidents such as cerebro-vascular insult (ICV). Carotid endarterectomy (CEA) is a preventive operation to reduce the risk of stroke and it can be performed by eversion carotid endarterectomy (E-CEA) or a classical carotid endarterectomy (C-CEA). The aim of this study was to investigate the influence of the used techniques in basic perioperative results and the incidence of postoperative complications...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28790270/-severe-carotid-artery-disease-preoperative-assessment-and-perioperative-management
#11
Kaoru Matsuura, Goro Matsumiya
Cerebrovascular complication is the one of the most dreadful complication after open heart surgery which leads to significant decrease of quality of life even if the patients survived. To decrease these complications, carotid doppler echo as one of the non-invasive carotid screening modalities is effective. Carotid artery stenosis is common in the patients with coronary artery disease, and it is more frequent in the patients with more complexed coronary artery lesions. The more the patients indicated for coronary artery bypass grafting has complexed lesions these days, the more the patients have carotid artery lesions...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28790269/-brain-protection-for-shaggy-aorta-during-aortic-arch-surgery
#12
Kenji Okada
Although short and long-term outcomes of aortic surgeries have been improving over the past decade, the procedure is likely to be asscociated with life-threatening complications such as neurological deficits caused by suboptimal brain protection or heavily diseased aorta. Contemporary strategies for brain protection are deep hypothermic arrest with or without retrograde cerebral perfusion retrograde cerebral perfusion or selective antegrade cerebral perfusion. At the moment, majority of evidences failed to show the superiority of selective antegrade cerebral perfusion to retrograde one...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28790006/the-relationship-between-the-direction-of-putaminal-intracerebral-hemorrhage-and-anterior-cerebral-artery-predominance
#13
Jae-Ho Lee, Chul-Hoon Chang, Young-Jin Jung, Jong-Hoon Kim
INTRODUCTION: It is expected that anatomical variations in the circle of Willis have a direct effect on blood flow in the internal carotid artery. Rupture of the lenticulostriate artery of the middle cerebral artery 1st segment (M1) is the most common cause of putaminal intracerebral hemorrhage(ICH), and we hypothesized that this could be related to the anatomical variations of the circle of Willis and the predominance of the anterior cerebral artery 1st segment (A1). METHODS: We retrospectively reviewed the records of 544 patients who were treated for spontaneous ICH between 2013 and 2016 at Yeungnam University Hospital...
August 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28783225/meta-analysis-of-the-costs-of-carotid-artery-stenting-and-carotid-endarterectomy
#14
REVIEW
E E de Vries, V G M Baldew, H M den Ruijter, G J de Borst
BACKGROUND: Carotid artery stenting (CAS) is currently associated with an increased risk of 30-day stroke compared with carotid endarterectomy (CEA), whereas both interventions seem equally durable beyond the periprocedural period. Although the clinical outcomes continue to be scrutinized, there are few data summarizing the costs of both techniques. METHODS: A systematic search was conducted in MEDLINE, Embase and Cochrane databases in August 2016 identifying articles comparing the costs or cost-effectiveness of CAS and CEA in patients with carotid artery stenosis...
September 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28782913/screening-with-doppler-ultrasound-for-carotid-artery-stenosis-in-patients-with-stroke-or-transient-ischaemic-attack
#15
Tatiana Kristensen, Peter Hovind, Helle K Iversen, Ulrik B Andersen
INTRODUCTION: Carotid endarterectomy of symptomatic internal carotid artery stenosis in patients with stroke or transient ischaemic attack reduces the risk of recurrent stroke, particularly if performed within 2 weeks from the first event. We evaluated the efficiency of a screening programme based on Doppler ultrasound in patients hospitalized with stroke or transient ischaemic attack in the stroke centre at Rigshospitalet, Glostrup, Denmark, concerning timeliness of referral to the vascular surgeon and performance of carotid endarterectomy according to national recommendations...
August 7, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28782435/rufinamide-pretreatment-attenuates-ischemia-reperfusion-injury-in-the-gerbil-hippocampus
#16
Chan Woo Park, Tae-Kyeong Lee, Jeong Hwi Cho, In Hye Kim, Jae-Chul Lee, Bich-Na Shin, Ji Hyeon Ahn, Sung Koo Kim, Myoung Cheol Shin, Taek Geun Ohk, Jun Hwi Cho, Moo-Ho Won, Young Joo Lee, Jeong Yeol Seo, Joon Ha Park
OBJECTIVES: Rufinamide, a voltage-gated sodium channel (VGSC) blocker, is widely used for the clinical treatment of seizures associated with Lennox-Gastaut syndrome. Previous studies have demonstrated that VGSC blockers have neuroprotective properties against ischemic damage following experimental cerebral ischemia. However, protective effects of rufinamide against cerebral ischemic insults have not been addressed. Therefore, in the present study, we firstly examined neuroprotective effects of rufinamide using a gerbil model of transient global cerebral ischemia...
August 7, 2017: Neurological Research
https://www.readbyqxmd.com/read/28781891/vascular-occlusions-following-ocular-surgical-procedures-a-clinical-observation-of-vascular-complications-after-ocular-surgery
#17
Charlotte Fischer, Anne Bruggemann, Annette Hager, Josep Callizo Planas, Johann Roider, Hans Hoerauf
BACKGROUND: Ocular vascular occlusions following intraocular procedures are a rare complication. We report a case series of patients with retinal vascular occlusions or anterior ischemic optic neuropathy (AION) after anterior and posterior segment surgery and demonstrate possible risk factors. METHODS: Observational case series. RESULTS: In ten patients, vascular occlusions were observed within ten weeks after intraocular surgery: branch retinal arterial occlusion (BRAO) (n = 2), central retinal artery occlusion (CRAO) (n = 2), central retinal vein occlusion (CRVO) (n = 1), branch retinal vein occlusion (BRVO) (n = 1), anterior ischemic optic neuropathy (AION) (n = 3), and combined central artery and vein occlusion (n = 1)...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28775107/a-garden-of-parathyroid-adenomas
#18
Zeyad T Sahli, Farah Karipineni, Martha A Zeiger
Despite improvements in parathyroidectomy success rates, patients with persistent primary hyperparathyroidism (PHPT) after initial surgery continue to challenge clinicians. Some of the challenges are due to ectopic parathyroid adenomas, including thymic, intrathyroidal, carotid sheath and mediastinal glands, and others are because of supernumerary glands. While uncommon in PHPT, multigland disease is also an important consideration in patients requiring reoperative surgery for persistent disease. For this reason, localisation studies including sestamibi, ultrasound, CT scan and venous sampling for abnormal glands may be an essential component of the preoperative workup...
August 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28774763/anatomic-dissection-of-arachnoid-membranes-encircling-the-pituitary-stalk-on-fresh-non-formalin-fixed-specimens-anatomo-radiologic-correlations-and-clinical-applications-in-craniopharyngioma-surgery
#19
P Ciappetta, L Pescatori
BACKGROUND: The anatomy of the arachnoid membranes and cisternal spaces around the pituitary stalk has not been yet exhaustively described and understood. In this study we performed a detailed anatomic study on fresh non formalin fixed cadavers of the arachnoid membranes encircling the pituitary stalk and correlate our anatomic findings with MRI. METHODS: Ten fresh, non formalin-fixed non silicon-injected adult cadaveric heads were analyzed in this study. The membrane and cisterns that have been studied for our study are: - The diaphragma sellae and its dural components; - The basal arachnoid membrane; - The Lilequist's membrane with its diencephalic and mesencephalic portion; - The medial carotid membrane; - The chiasmatic cistern; - The pituitary stalk...
July 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28768818/sofia-intermediate-catheter-and-the-snake-technique-safety-and-efficacy-of-the-sofia-catheter-without-guidewire-or-microcatheter-construct
#20
Jeremy J Heit, Johnny Hy Wong, Adrienne M Mofaff, Nicholas A Telischak, Robert L Dodd, Michael P Marks, Huy M Do
BACKGROUND: Neurointerventional surgeries (NIS) benefit from supportive endovascular constructs. Sofia is a soft-tipped, flexible, braided single lumen intermediate catheter designed for NIS. Sofia advancement from the cervical to the intracranial circulation without a luminal guidewire or microcatheter construct has not been described. OBJECTIVE: To evaluate the efficacy and safety of the new Sofia Non-wire Advancement techniKE (SNAKE) for advancement of the Sofia into the cerebral circulation...
August 2, 2017: Journal of Neurointerventional Surgery
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