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Vein of galen

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https://www.readbyqxmd.com/read/28224101/vein-of-galen-malformation-in-a-neonate-a-case-report-and-review-of-endovascular-management
#1
Surasak Puvabanditsin, Rajeev Mehta, Kristy Palomares, Natalie Gengel, Christina Ferrucci Da Silva, Sudipta Roychowdhury, Gaurav Gupta, Arun Kashyap, David Sorrentino
Vein of Galen malformation (VOGM) is a rare congenital vascular malformation caused by the maldevelopment of its embryonic precursor, the median prosencephalic vein of Markowski. VOGM results in neonatal morbidity and mortality, and premature delivery does not improve the outcome. We report a term female neonate in whom a vein of Galen malformation was diagnosed prenatally at 37 wk of gestation during a growth ultrasound and confirmed by fetal magnetic resonance imaging. Signs of cardiac decompensation were evident in the fetus...
February 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28186112/localization-of-short-chain-polyphosphate-enhances-its-ability-to-clot-flowing-blood-plasma
#2
Ju Hun Yeon, Nima Mazinani, Travis S Schlappi, Karen Y T Chan, James R Baylis, Stephanie A Smith, Alexander J Donovan, Damien Kudela, Galen D Stucky, Ying Liu, James H Morrissey, Christian J Kastrup
Short-chain polyphosphate (polyP) is released from platelets upon platelet activation, but it is not clear if it contributes to thrombosis. PolyP has increased propensity to clot blood with increased polymer length and when localized onto particles, but it is unknown whether spatial localization of short-chain polyP can accelerate clotting of flowing blood. Here, numerical simulations predicted the effect of localization of polyP on clotting under flow, and this was tested in vitro using microfluidics. Synthetic polyP was more effective at triggering clotting of flowing blood plasma when localized on a surface than when solubilized in solution or when localized as nanoparticles, accelerating clotting at 10-200 fold lower concentrations, particularly at low to sub-physiological shear rates typical of where thrombosis occurs in large veins or valves...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28180030/serial-measurement-of-superior-vena-cava-flow-in-evaluation-of-the-clinical-severity-of-pial-arteriovenous-fistula-in-an-infant
#3
Mako Ago, Kenichi Masumoto, Atsushi Uchiyama, Yasuo Aihara, Yoshikazu Okada, Satoshi Kusuda
Background Pial arteriovenous fistula (AVF) is composed of one or more direct arterial feeding vessels with a single draining vein without nidus. A patient with the disease with high-flow AV shunting in the neonatal period not only suffers from high-output cardiac failure but also shows secondary neurological sequelae. In vein of Galen aneurysmal malformation, superior vena cava (SVC) flow measurements provide useful prognostic information. Case Presentation We measured serial SVC flow in a male infant with pial AVF...
January 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28110544/intracranial-structural-alteration-predicts-treatment-outcome-in-patients-with-spontaneous-intracranial-hypotension
#4
Hanna Choi, Mi Ji Lee, Hyun Ah Choi, Jihoon Cha, Chin-Sang Chung
Background Intracranial structural dislocation in spontaneous intracranial hypotension (SIH) can be measured by various intracranial angles and distances. We aimed to identify the clinical significance of structural dislocation in relation to treatment outcome in patients with SIH. Methods In this retrospective analysis, we identified patients with SIH who received an epidural blood patch (EBP) at Samsung Medical Center from January 2005 to March 2015. Structural dislocation in pretreatment MRIs of SIH patients was assessed by measuring tonsillar herniation, mamillopontine distance, the angle between the vein of Galen and straight sinus (vG/SS angle), the pontomesencephalic angle, and the lateral ventricular angle...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28092907/sinus-thrombosis-after-endovascular-treatment-of-vein-of-galen-aneurysmal-malformation
#5
Zeferino Demartini, Marcio Luis Tostes Dos Santos, Gelson Luis Koppe, Adriane de Andre Cardoso-Demartini
No abstract text is available yet for this article.
January 17, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28076893/-pseudo-feeders-on-fetal-mri-predict-outcome-in-vein-of-galen-malformations
#6
Guillaume Saliou, Irène Vraka, Jean-Paul Teglas, Marie-Victoire Senat, Philippe Durand, Claire Colmant, Augustin Ozanne, Jelena Martinovic, Pierre Tissiere, Catherine Adamsbaum
OBJECTIVE: While vein of Galen aneurysmal malformations (VGAM) can be diagnosed in the fetus, the challenge is predicting the occurrence of its two major complications: cardiopulmonary failure and encephalomalacia. This study attempts to determine which fetal brain MRI features might be used to predict the development of these complications at birth. METHODS: The cohort was extracted from a prospectively-assembled database of VGAM cases managed at a single referral centre from 2000 to 2014...
January 11, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/27857804/spontaneous-thrombosis-of-vein-of-galen-malformation
#7
Kalpana Devi Kariyappa, Murali Krishnaswami, Francis Gnanaprakasam, Madan Ramachandran, Visvanathan Krishnaswamy
Vein of Galen malformation (VOGM) is a rare intracranial vascular malformation. Before the advent and advancement of various endovascular techniques, there was dismal prognosis. Rarely, this condition may spontaneously thrombose without the need for surgical or endovascular treatment with good prognosis. We report a case of an 8-month-old infant who had serial imaging, suggestive of VOGM and presented to us for further management, wherein the imaging revealed spontaneous thrombosis.
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27837112/endovascular-treatment-of-vein-of-galen-aneurysmal-malformation-using-rapid-ventricular-pacing-a-case-report
#8
Birgitta Ramgren, Olof Rask, Jan Gelberg, Petru Liuba, Per Undrén, Johan Wassélius
The treatment of choice of vein of Galen aneurysmal malformation (VGAM) involves endovascular procedures that can be difficult to perform in high-flow fistulas. We describe the use of rapid ventricular pacing (RVP), a well-known cardiologic technique, to safely treat a high-flow fistula in an infant with VGAM.
February 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27798855/retreatment-of-a-choroidal-vein-of-galen-malformation-with-embolization-42%C3%A2-years-after-open-surgical-treatment-in-the-neonatal-period
#9
Lucas Elijovich, Asim F Choudhri, Adam S Arthur, Paul Klimo, Frederick A Boop, Alejandro Berenstein
In 1976 an infant boy initially presented with a choroidal vein of Galen malformation (cVOGM). Craniotomy and clipping of the anterior cerebral artery and posterior choroidal arteries was performed, which was reported in the literature 40 years ago. The patient remained asymptomatic until age 42 when he re-presented with an isolated intraventricular hemorrhage. Angiography demonstrated cVOGM with venous sinus occlusive disease leading to venous hypertension and subsequent intraventricular hemorrhage. The angiogram also demonstrated a 'pseudo-nidus' composed of multiple arterial-to-arterial anastomoses that had developed as a result of the original surgical treatment...
October 8, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27715436/midline-and-off-midline-infratentorial-supracerebellar-approaches-to-the-pineal-gland
#10
Satoshi Matsuo, Serhat Baydin, Abuzer Güngör, Koichi Miki, Noritaka Komune, Ryota Kurogi, Koji Iihara, Albert L Rhoton
OBJECTIVE A common approach to lesions of the pineal region is along the midline below the torcula. However, reports of how shifting the approach off midline affects the surgical exposure and relationships between the tributaries of the vein of Galen are limited. The purpose of this study is to examine the microsurgical and endoscopic anatomy of the pineal region as seen through the supracerebellar infratentorial approaches, including midline, paramedian, lateral, and far-lateral routes. METHODS The quadrigeminal cisterns of 8 formalin-fixed adult cadaveric heads were dissected and examined with the aid of a surgical microscope and straight endoscope...
October 7, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27702926/retreatment-of-a-choroidal-vein-of-galen-malformation-with-embolization-42%C3%A2-years-after-open-surgical-treatment-in-the-neonatal-period
#11
Lucas Elijovich, Asim F Choudhri, Adam S Arthur, Paul Klimo, Frederick A Boop, Alejandro Berenstein
In 1976 an infant boy initially presented with a choroidal vein of Galen malformation (cVOGM). Craniotomy and clipping of the anterior cerebral artery and posterior choroidal arteries was performed, which was reported in the literature 40 years ago. The patient remained asymptomatic until age 42 when he re-presented with an isolated intraventricular hemorrhage. Angiography demonstrated cVOGM with venous sinus occlusive disease leading to venous hypertension and subsequent intraventricular hemorrhage. The angiogram also demonstrated a 'pseudo-nidus' composed of multiple arterial-to-arterial anastomoses that had developed as a result of the original surgical treatment...
October 4, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27689921/diagnosis-of-vein-of-galen-aneurysmal-malformation-using-fetal-mri
#12
Li-Xia Zhou, Su-Zhen Dong, Ming-Feng Zhang
PURPOSE: To present three fetal vein of Galen aneurysmal malformations (VGAMs), which were diagnosed through magnetic resonance imaging (MRI), and highlight these cardiovascular findings. MATERIALS AND METHODS: We retrospectively reviewed three fetuses with VGAM at 31, 32, and 33 weeks of gestation. Feeding arteries and draining veins were observed by MRI. Secondary changes in the brain and high-output heart failure caused by high blood flow in the lesion were evaluated...
September 30, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27645455/ep02-09-early-and-uncommon-prenatal-diagnosis-of-vein-of-galen-aneurysm
#13
N Meirowitz, A Yukhayev, R Madankumar
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27601322/endovascular-treatment-of-pediatric-intracranial-arteriovenous-shunting
#14
Yasunari Niimi
Intracranial arteriovenous shunts (ICAVSs) in young children are characterized with frequent high flow fistulas. In association of high flow fistulas and physiological condition of the developing brain and heart, each disease tends to present at a certain age with unique symptoms. Vein of Galen aneurysmal malformation (VGAM) and dural sinus malformation (DSM) with arteriovenous (AV) shunts tend to present in neonate with high output cardiac failure. In infancy, VGAM, pial AVF and infantile dural AVF tend to present with hydrodynamic disorder such as macrocephaly, ventriculomegaly, prominent facial veins, and developmental delay...
September 7, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/27596803/pediatric-neurointervention-collimation-on-radiation-exposure-associated-lifetime-excess-tumor-risk
#15
Karen Chen, Srinivasan Paramasivam, Alejandro Berenstein
BACKGROUND: Intracranial vascular malformations in children are being addressed through a variety of treatment modalities including open surgery, external beam radiation, and image-guided neuroendovascular procedures. These patients often receive multiple treatments and incur serial exposures to ionizing radiation which has been linked to tumor development in population-based data. OBJECTIVE: This study quantifies the effect of collimation on exposures from single procedures and over patient lifetimes to estimate excess risk of lifetime tumor development...
September 5, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27580088/vein-of-galen-aneurysmal-malformation
#16
Aya Y Michaels, Shreya Sood, Mary C Frates
No abstract text is available yet for this article.
December 2016: Ultrasound Quarterly
https://www.readbyqxmd.com/read/27563735/the-discovery-of-the-lymphatic-system-in-the-seventeenth-century-part-ii-the-discovery-of-chyle-vessels
#17
Raphael Suy, Sarah Thomis, Inge Fourneau
In the seventeenth century, opportunities to discover chyle came about through the revival of vivisection. Gaspare Aselli discovered chyle vessels in a living well-fed dog in 1622. He introduced the term 'lacteals' or milky veins. According to Aselli, the lacteals passed through a mesenteric gland which he called 'pancreas'. The 1627 edition of Aselli's booklet was the start of a 'lymphomania', which led to the dissection and vivisection of hundreds of animals, with the University of Leiden being the clear leader in this field...
October 2016: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27514305/vein-of-galen-aneurysmal-malformation-vgam-in-the-fetus-a-retrospective-analysis-of-perinatal-prognostic-indicators-in-a-two-center-series-of-49-cases
#18
D Paladini, B Deloison, A Rossi, G E Chalouhi, C Gandolfo, P Sonigo, S Buratti, A E Millischer, G Tuo, Y Ville, A Pistorio, A Cama, L J Salomon
OBJECTIVE: Vein of Galen aneurysmal malformation (VGAM) is a rare anomaly in which an adequate perinatal management may warrant good neurological outcome. However, most fetal series are too scant to allow reliable statistical assessment of poor prognostic factors. Aim of this paper is to assess, in a two-center series of 49 cases, the prognostic value of several prenatal variables. The primary endpoint of the analysis is to identify possible prenatal indicators of poor outcome, in terms of mortality and cerebral disabilities...
August 12, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27510885/fistulous-type-vein-of-galen-malformation-phantom-model-for-endovascular-training-and-research
#19
Dan Meila, Katharina Melber, Dominik Grieb, Collin Jacobs, Heinrich Lanfermann, Friedhelm Brassel
INTRODUCTION: Vein of Galen malformation (VGM), a high-flow intracranial arteriovenous shunt, is among the most severe neurovascular diseases in childhood. In many cases untreated children die or survive only severely disabled. Endovascular embolization is the preferred treatment. OBJECTIVE: To develop a simple fistulous-type VGM phantom model for teaching and training of different endovascular treatment methods and to investigate new treatment options and devices...
August 10, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27510878/-vein-of-galen-malformations-in-two-neonates
#20
M Y Tang, G Cheng, Y J Wei
No abstract text is available yet for this article.
August 2016: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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