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https://www.readbyqxmd.com/read/28647797/overdrainage-of-cerebrospinal-fluid-and-hydrocephalus-shunts
#1
EDITORIAL
Marek Czosnyka, Zofia H Czosnyka
No abstract text is available yet for this article.
June 25, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28647659/flow-diverters-as-a-useful-adjunct-to-traditional-endovascular-techniques-in-the-treatment-of-direct-carotid-cavernous-fistulas
#2
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/28647638/evolution-of-practices-in-carotid-surgery-observational-study-in-france-from-2006-to-2015
#3
Lucie Salomon du Mont, Stefan Olteanu, Eric Steinmetz, Benjamin Kretz
INTRODUCTION: The principal objective of this study was to determine the evolution of the surgical management of stenosis of the carotid bifurcation over a period of 10 years in France. The secondary objective was to ascertain the impact of recommendations and of the literature on the evolution of these practices. MATERIALS AND METHODS: From the registry of the 'Agence Technique de l'Information sur l'Hospitalisation (ATIH)', we collected all of the data for carotid surgery procedures carried out in French healthcare establishments between 2006 and 2015...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647627/endovascular-retrieval-of-migrated-distal-end-of-vp-shunt-from-bilateral-pulmonary-arteries-a-technical-note
#4
Rimal Hanif Dossani, Tanmoy Kumar Maiti, Devi Prasad Patra, Anil Nanda, Hugo Cuellar
Ventriculoperitoneal (VP) shunting of cerebrospinal fluid is one of the most common procedures performed by neurosurgeons around the world. Migration of distal VP shunt catheter into bilateral segmental pulmonary arteries is an extremely rare complication of VP shunt placement. In present case, a 30-year-old male underwent VP shunting complicated by migration of distal VP shunt catheter into the bilateral pulmonary arteries. Despite manual attempt at externalizing the distal VP shunt catheter at the level of the clavicle, a small piece of distal VP shunt catheter in bilateral pulmonary arteries was noted on CT chest obtained following manual externalization...
June 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28647317/associations-of-systemic-sphingolipids-with-measures-of-hepatic-function-in-liver-cirrhosis-are-related-to-cholesterol
#5
Sabrina Krautbauer, Reiner Wiest, Gerhard Liebisch, Christa Buechler
Lipoprotein particles are composed of various lipid classes including cholesterol and sphingolipids, and are low in serum of patients with liver cirrhosis. Hepatic decompensation is associated with a further decline of lipoproteins. Aim of the present work was to evaluate whether ceramide and sphingomyelin species are similarly changed in patients with liver cirrhosis and whether these variations are related to systemic cholesterol levels. In a cohort of 45 patients suffering from liver cirrhosis, cholesteryl ester species and subsequently total cholesterol were identified to be negatively associated with model of end stage liver disease (MELD) score...
June 21, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28645901/antenatal-thoracoamniotic-shunting-in-congenital-cystic-adenomatoid-malformation
#6
Terry Cullen, Clare Tower, Kristin Tanney
No abstract text is available yet for this article.
June 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28645780/salvia-miltiorrhiza-bunge-danshen-extract-attenuates-permanent-cerebral-ischemia-through-inhibiting-platelet-activation-in-rats
#7
Yu-Xiang Fei, Si-Qi Wang, Li-Jian Yang, Yan-Ying Qiu, Yi-Ze Li, Wen-Yuan Liu, Tao Xi, Wei-Rong Fang, Yun-Man Li
ETHNOPHARMACOLOGICAL RELEVANCE: Danshen is a crude herbal drug isolated from dried roots of Salvia miltiorrhiza Bunge. This plant is widely used in oriental medicine for the treatment of cardiovascular and cerebrovascular diseases. The supercritical CO2 extract from Danshen (SCED) (57.85%, 5.67% and 4.55% for tanshinone IIA, tanshinone I and cryptotanshinone respectively) was studied in this article, whose potential molecular mechanism remains unclear, especially in anti-thrombosis. AIM OF THE STUDY: The present study was designed to observe the protective effect of SCED on ischemic stroke in rats and to explore the underlying anti-thrombosis mechanism...
June 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28645586/venous-sinus-stenting-in-the-management-of-patients-with-intracranial-hypertension-manifesting-with-skull-base-cerebrospinal-fluid-leaks
#8
Rajiv R Iyer, David Solomon, Abhay Moghekar, C Rory Goodwin, Charles M Stewart, Masaru Ishii, Philippe Gailloud, Gary L Gallia
BACKGROUND: A subset of patients with skull base cerebrospinal fluid (CSF) leaks are found to have elevated intracranial pressure (ICP). In these patients, elevated ICP is thought to contribute to both the pathophysiology of the leak as well as postoperative leak recurrences. Current strategies for post-operative ICP control include medical therapy and shunting procedures. The aim of this study is to report the use of venous sinus stenting (VSS) in the management of patients with skull base CSF leaks due to elevated ICP...
June 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28643575/combined-rex-bypass-shunt-with-pericardial-devascularization-alleviated-prehepatic-portal-hypertension-caused-by-cavernomatous-transformation-of-portal-vein
#9
Ruo-Yi Wang, Jun-Feng Wang, Qian Liu, Nan Ma, Wei-Xiu Chen, Jin-Liang Li
OBJECTIVE: To evaluate the effects of combined Rex-bypass shunt and pericardial devascularization on prehepatic portal hypertension secondary to cavernomatous transformation of portal vein (CTPV). METHODS: Forty-two patients aged from 3 years to 49 years (divided into 3 groups), 26 cases male and 16 female, with prehepatic vascular hepertention were treated with Rex-bypass shunt combined with pericardial devascularization. In each patient, preoperative assessment included ultrasound and computed tomographic angiography of the portal vein and blood analysis...
June 23, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28643040/management-of-an-unusual-recurrent-neurenteric-cyst-in-an-infant-case-report-and-review-of-the-literature
#10
Darian R Esfahani, Laura Burokas, Henry G Brown, Yoon S Hahn, Dimitrios Nikas
PURPOSE: Neurenteric cysts are rare congenital remnants formed by a failure of separation between endoderm and ectoderm in utero. METHODS: We describe a case of a 7-month-old male with a large cervical neurenteric cyst presenting with intermittent neck stiffness and irritability. RESULTS: This cyst was resected, recurred, and required repeat surgery. The patient's postoperative course included aseptic meningitis and hydrocephalus requiring ventriculoperitoneal shunt and later management of tethered cord, necessitating detethering...
June 22, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28641811/tension-pneumocephalus-following-suboccipital-sitting-craniotomy-in-the-pediatric-population
#11
P Daszkiewicz, D Dziedzic
BACKGROUND: Sitting craniotomy often results in entrapment of air in fluid-filled intracranial cavities. Gas under pressure exerts a deleterious effect on adjacent nervous tissue, resulting in clinical deterioration. AIM OF STUDY: To assess the incidence of tension pneumocephalus (TP) and to define risk factors associated therewith. MATERIAL AND METHOD: Analysis included 100 consecutive patients (57 boys, 43 girls, mean age 9.7 y) undergoing suboccipital sitting craniotomy since 2012 to 2014...
May 11, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/28640983/multiplexed-crispr-cas9-mediated-metabolic-engineering-of-%C3%AE-aminobutyric-acid-levels-in-solanum-lycopersicum
#12
Rui Li, Ran Li, Xindi Li, Daqi Fu, Benzhong Zhu, Huiqin Tian, Yunbo Luo, Hongliang Zhu
In recent years, the type II CRISPR system has become a widely used and robust technique to implement site-directed mutagenesis in a variety of species including model and crop plants. However, few studies manipulated metabolic pathways in plants using the CRISPR system. Here, we introduced the pYLCRISPR/Cas9 system with one or two single-site guide RNAs to target the tomato phytoene desaturase gene. An obvious albino phenotype was observed in T0 regenerated plants, and more than 61% of the desired target sites were edited...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640110/case-report-of-a-modified-meso-rex-bypass-as-a-treatment-technique-for-late-onset-portal-vein-cavernous-transformation-with-portal-hypertension-after-adult-deceased-donor-liver-transplantation
#13
Dongdong Han, Rui Tang, Liang Wang, Ang Li, Xin Huang, Shan Shen, Jiahong Dong
RATIONALE: Portal vein thrombosis is a complication after liver transplantation and cavernous transformation of the portal vein (CTPV) is a result of portal vein thrombosis, with symptoms of portal hypertension revealed by an enhanced CT scan. Meso-Rex bypass is an artificial shunt connecting the left portal vein to the superior mesenteric vein and is mainly used for idiopathic cavernomas. This technique is also used for post-transplant portal vein thrombosis in pediatric patients thereby bypassing obstructed sites of the extrahepatic portal vein...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28639036/customization-of-laparoscopic-gastric-devascularization-and-splenectomy-for-gastric-varices-based-on-ct-vascular-anatomy
#14
Hirofumi Kawanaka, Tomohiko Akahoshi, Yoshihiro Nagao, Nao Kinjo, Daisuke Yoshida, Yoshihiro Matsumoto, Norifumi Harimoto, Shinji Itoh, Tomoharu Yoshizumi, Yoshihiko Maehara
BACKGROUND: Laparoscopic gastric devascularization(Lap GDS) and splenectomy (SPL) for gastric varices is technically challenging because of highly developed collateral vessels and bleeding tendency. We investigated the feasibility of customization of Lap GDS and SPL based on CT vascular anatomy. METHODS: We analyzed 61 cirrhotic patients with gastric varices who underwent Lap GDS and SPL between 2006 and 2014. Lap GDS was customized according to the afferent feeding veins (left gastric vein (LGV) and/or posterior gastric vein (PGV)/short gastric vein (SGV)) and efferent drainage veins (gastrorenal shunt and/or gastrophrenic shunt, or numerous retroperitoneal veins) based on CT imaging...
June 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28637879/platelets-express-activated-p2y12-receptor-in-patients-with-diabetes
#15
Liang Hu, Lin Chang, Yan Zhang, Lili Zhai, Shenghui Zhang, Zhiyong Qi, Hongmei Yan, Yan Yan, Xinping Luo, Si Zhang, Yiping Wang, Satya P Kunapuli, Hongying Ye, Zhongren Ding
Background -Platelets from patients with diabetes are hyperactive. Hyperactivated platelets may contribute to cardiovascular complications and inadequate responses to antiplatelet agents in the setting of diabetes. However, the underlying mechanism of hyperactivated platelets is not completely understood. Methods -We measured P2Y12 expression on platelets from patients with type 2 diabetes mellitus (T2DM) and on platelets from rats with diabetes. We also assayed platelet P2Y12 activation by measuring cAMP and VASP phosphorylation...
June 21, 2017: Circulation
https://www.readbyqxmd.com/read/28637121/iatrogenic-syringomyelia-secondary-to-lumboperitoneal-shunt-altered-by-the-raised-intra-abdominal-pressure-of-pregnancy
#16
James Kersey, William Cato-Addison, Damian Holliman
We report a case of a 37 year old female with syringomyelia secondary to lumboperitoneal (LP) shunt. Syrinx regression occurred with raised intra-abdominal pressure due to pregnancy and subsequently redeveloped after parturition. To our knowledge a case of pregnancy associated syringomyelia regression has not been previously reported.
March 6, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28637114/diffuse-large-b-cell-lymphoma-a-rare-complication-of-an-abdominal-csf-pseudocyst
#17
Cathal Hannan, Aaron Niblock, Jeremy Hamilton, H Neil Simms
Abdominal CSF pseudocysts are an uncommon complication of ventriculo-peritoneal shunting. We report the case of a 35 year old man with a myelomenigocele, associated Chiari 2 malformation, and VP shunt developing a Diffuse Large B-Cell Lymphoma within the lining of an abdominal CSF pseuodcyst. This diagnosis should be considered in those with recurrent pseudocysts, or those associated with a swinging pyrexia and high C-Reactive protein, in the absence of infection.
March 2, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28634669/yttrium-90-y-90-resin-microsphere-therapy-for-patients-with-unresectable-hepatocellular-carcinoma-a-single-center-experience
#18
Semra İnce, Bülent Karaman, Engin Alagoz, Nuri Karadurmuş, Hüseyin Şan, Cemal Nuri Erçin, Nuri Arslan
BACKGROUND/AIM: Selective intraarterial radionuclide therapy (SIRT) with yttrium-90 (Y-90) resin microspheres presently has successful results in primary or metastatic inoperable liver tumors. This procedure, which is also known as radioembolisation, delivers high doses of radiation selectively to hepatic tumors while minimum healthy liver exposure. The aim of this study was to present our clinical experience of radiomicrosphere therapy for the treatment of patients with unresectable hepatocellular carcinoma (HCC)...
June 20, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28634172/identifying-an-oxygenation-index-threshold-for-increased-mortality-in-acute-respiratory-failure
#19
Brandon G Hammond, Pamela Garcia-Filion, Paul Kang, Mounica Y Rao, Brigham C Willis, Heidi J Dalton
BACKGROUND: The objective of this work was to examine current oxygenation index (OI) data and outcomes using electronic medical record data to identify a specific OI value associated with mortality. METHODS: This study was a retrospective electronic medical record data review from the pediatric ICU of Phoenix Children's Hospital, with data mining for variables to calculate OIs on subjects age 1 month to 20 y mechanically ventilated >24 h, excluding those with known intracardiac shunts or cyanotic heart disease...
June 20, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28634064/subarachnoid-hemorrhage-in-advanced-age-comparison-of-patients-aged-70-79-years-and-80-years-and-older
#20
N Brawanski, F Kunze, M Bruder, S Tritt, C Senft, J Berkefeld, V Seifert, J Konczalla
OBJECTIVE: Clinical routine shows an increasing admission rate of elderly patients suffering from SAH. We retrospectively compared patients aged 70-79 and over 80 years (80+). Aim of the study was to identify differences in outcome and prognostic factors to better anticipate clinical course and therefore treat this special subgroup better. METHODS: Patients were entered into a prospectively collected database. Between 1999 and 06/2014 191 patients suffered from SAH and aged ≥70 years...
June 17, 2017: World Neurosurgery
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