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2016 and subarachnoid

Nicholas L Deep, Ameet C Patel, Joseph M Hoxworth, David M Barrs
Pantopaque (iophendylate) is an oily contrast medium historically used during spine imaging. Due to its persistence in the subarachnoid space and the potential to lead to severe arachnoiditis, it is no longer used today. We present a 40-year-old male with new-onset headaches, imbalance, and vertigo. Brain magnetic resonance imaging revealed a 2-mm T1 -hyperintense intracanalicular lesion. Numerous hyperdense foci were scattered throughout the subarachnoid space on computed tomography. Further history revealed the patient received Pantopaque 30 years prior, after sustaining spinal trauma...
October 11, 2016: Laryngoscope
Atsushi Sasahara, Kazufumi Suzuki, Yuichi Takahashi, Hirokazu Koseki, Kengo Hirota, Hidenori Ohbuchi, Hidetoshi Kasuya
No abstract text is available yet for this article.
October 2016: World Neurosurgery
R S Bechan, W J van Rooij, J P Peluso, M Sluzewski
BACKGROUND AND PURPOSE: Aneurysmal-type subarachnoid hemorrhage is a serious disease with high morbidity and mortality. When no aneurysm is found, the patient remains at risk for rebleeding. Negative findings for SAH on angiography range from 2% to 24%. Most previous studies were based on conventional 2D imaging. 3D rotational angiography depicts more aneurysms than 2D angiography. The purpose of this study was to evaluate the yield of repeat 3D rotational angiography in patients with aneurysmal-type SAH with negative initial 3D rotational angiography findings and to classify the initial occult aneurysms...
September 22, 2016: AJNR. American Journal of Neuroradiology
Anqi Xiao, Ruiqi Chen, Hao Li, Lu Ma, Sen Lin, Xin Hu, Chao You
BACKGROUND: Although there have been many studies on primary hemorrhagic neurovascular diseases (PHNVDs) in different populations, a study focusing on PHNVDs in Tibetan people was still lacking. This study aimed to explore the notable characteristics of Tibetan PHNVDs by comparing the most three common PHNVDs (aneurysmal subarachnoid hemorrhage, spontaneous intracerebral hemorrhage and arteriovenous malformation) in our institution between Tibetan and Han patients. METHODS: In this retrospective observational study, the hospital information system (HIS) was utilized to access the records of patients with PHNVDs...
September 16, 2016: World Neurosurgery
A Rocca, J-M Pignat, L Berney, J Jöhr, D Van de Ville, R T Daniel, M Levivier, L Hirt, A R Luft, E Grouzmann, K Diserens
BACKGROUND: Patients who experience severe brain injuries are at risk of secondary brain damage, because of delayed vasospasm and edema. Traditionally, many of these patients are kept on prolonged bed rest in order to maintain adequate cerebral blood flow, especially in the case of subarachnoid hemorrhage. On the other hand, prolonged bed rest carries important morbidity. There may be a clinical benefit in early mobilization and our hypothesis is that early gradual mobilization is safe in these patients...
September 13, 2016: BMC Neurology
K Ravishankar
The term "thunderclap headache" (TCH) was first coined in 1986 by Day and Raskin to describe headache that was the presenting feature of an underlying unruptured cerebral aneurysm. The term is now well established to describe the abrupt onset headache seen with many other conditions and is also now included in The International Classification of Headache Disorders 3(rd) edition beta version rubric 4.4. An essential to label an acute headache as "TCH" and differentiate it from other "sudden onset, severe headaches" is the arbitrary time frame of 1 min from onset to peak intensity for "TCH...
July 2016: Annals of Indian Academy of Neurology
Xianli Lv, Huijian Ge, Hongwei He, Chuhan Jiang, Youxiang Li
BACKGROUND: Anterior inferior cerebellar artery (AICA) aneurysms are rare and published clinical experience with these aneurysms is limited. OBJECTIVE: The objective of this article is to report angiographic characteristics and results associated with premeatal, meatal and postmeatal segments, surgical and endovascular therapies. METHODS: A literature review was performed through PubMed using "anterior inferior cerebellar artery aneurysm" through January 2016...
August 2, 2016: Interventional Neuroradiology
M Aguilar Pérez, P Bhogal, R Martinez Moreno, C Wendl, H Bäzner, O Ganslandt, H Henkes
INTRODUCTION: Coil embolization of ruptured aneurysms has become the standard treatment in many situations. However, certain aneurysm morphologies pose technical difficulties and may require the use of adjunctive devices. OBJECTIVE: To present our experience with the pCONus, a new neck bridging device, as an adjunct to coil embolization for acutely ruptured aneurysms and discuss the technical success, angiographic and clinical outcomes. METHODS: We conducted a retrospective review of our database of prospectively collected data to identify all patients who presented with acute subarachnoid hemorrhage that required adjunctive treatment with the pCONus in the acute stage...
July 13, 2016: Journal of Neurointerventional Surgery
Christopher A Potter, Kathleen R Fink, Amanda L Ginn, David R Haynor
Purpose To quantify the rate of detection of aneurysms at follow-up digital subtraction angiography (DSA) after initial DSA with results negative for aneurysms in subjects with perimesencephalic (PM) nonaneurysmal subarachnoid hemorrhage. Materials and Methods This single-center retrospective study and meta-analysis was approved by the institutional review board. At a single institution from 2000 to 2013, 252 consecutive patients with subarachnoid hemorrhage at computed tomography (CT) and two DSA examinations negative for aneurysm within 10 days were evaluated for inclusion in the study, and 131 met CT criteria for PM nonaneurysmal subarachnoid hemorrhage (53 women; mean age, 53 years [range, 33-88 years])...
May 27, 2016: Radiology
Amandine Jullienne, Andre Obenaus, Aleksandra Ichkova, Catherine Savona-Baron, William J Pearce, Jerome Badaut
Traumatic brain injuries (TBI) often involve vascular dysfunction that leads to long-term alterations in physiological and cognitive functions of the brain. Indeed, all the cells that form blood vessels and that are involved in maintaining their proper function can be altered by TBI. This Review focuses on the different types of cerebrovascular dysfunction that occur after TBI, including cerebral blood flow alterations, autoregulation impairments, subarachnoid hemorrhage, vasospasms, blood-brain barrier disruption, and edema formation...
July 2016: Journal of Neuroscience Research
D S C Ng, C Y L Cheung, F O Luk, S Mohamed, M E Brelen, J C S Yam, C W Tsang, T Y Y Lai
The natural course of high-axial myopia is variable and the development of pathologic myopia is not fully understood. Advancements in optical coherence tomography (OCT) technology have revealed peculiar intraocular structures in highly myopic eyes and unprecedented pathologies that cause visual impairment. New OCT findings include posterior precortical vitreous pocket and precursor stages of posterior vitreous detachment; peripapillary intrachoroidal cavitation; morphological patterns of scleral inner curvature and dome-shaped macula...
July 2016: Eye
J Rajiv Bapuraj, Frank J Londy, Nader Delavari, Cormac O Maher, Hugh J L Garton, Bryn A Martin, Karin M Muraszko, El-Sayed H Ibrahim, Douglas J Quint
PURPOSE: To assess the effects of cerebrospinal fluid (CSF) bidirectional motion in Chiari malformation type I (CMI), we monitored CSF velocity amplitudes on phase contrast MRI (PC-MRI) in patients before and after surgery; and in healthy volunteers. MATERIALS AND METHODS: 10 pediatric volunteers and 10 CMI patients participated in this study. CMI patients underwent PC-MRI scans before and approximately 14 months following surgery. Two parameters-amplitude of mean velocity (AMV) and amplitude of peak velocity (APV) of CSF-were derived from the data...
August 2016: Journal of Magnetic Resonance Imaging: JMRI
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