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https://www.readbyqxmd.com/read/28647093/hypertrophic-olivary-degeneration-after-cerebellar-hemorrhage
#1
Gregory Walker, Kaustubh Limaye, Brian T Jankowitz, Ashutosh P Jadhav
We present a striking example of hypertrophic olivary degeneration after cerebellar hemorrhage. This case highlights some important teaching points: unique response of the inferior olivary nucleus to de-afferentation, anatomy of Mollaret's triangle and clinical manifestations of disruption in Mollaret's triangle. The purpose of this teaching case is to highlight a rare but important post-stroke complication.
June 21, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28634821/cavernous-malformations-of-central-nervous-system-in-pediatric-patients-our-single-centered-experience-in-50-patients-and-review-of-literature
#2
Dattaraj Paramanand Sawarkar, Suveen Janmatti, Rajinder Kumar, Pankaj Kumar Singh, Hitesh Kumar Gurjar, Shashank Sharad Kale, Bhawani Shanker Sharma, Ashok Kumar Mahapatra
PURPOSE: Cavernous malformations (CMs) are rare developmental cerebrovascular malformations of the central nervous system with a childhood prevalence of 0.3 to 0.53%. Our purpose was to assess the clinical features and microsurgical outcome in pediatric central nervous system (CNS) CMs. MATERIAL AND METHODS: We retrospectively enrolled all the CM patients admitted to our institute from 1 January 2001 to 31 December 2014. Data was analyzed for their clinical features and surgical outcome...
June 20, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28634315/-a-case-of-metastatic-brain-tumor-complicated-by-multiple-repeated-hemorrhages
#3
Kentaro Hayashi, Yukishige Hayashi, Yoshitaka Matsuo, Kiyoshi Shirakawa, Makio Kaminogo
Metastatic brain tumor occasionally results in multiple cerebral hemorrhages. Here, we report a case of metastatic brain tumor complicated by multiple repeated cerebral hemorrhages. An 80-year-old man with a history of removal of lung cancer was admitted to our hospital because of disturbed consciousness following headache. A brain CT revealed a mass lesion of 40-mm diameter in the left cerebellum and a mass lesion of 2-mm diameter in the right temporal lobe. The cerebellar mass lesion showed homogeneous iso-density, indicating a subacute phase hemorrhage...
June 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28625904/subarachnoid-hemorrhage-due-to-distal-superior-cerebellar-artery-dissection-in-neurofibromatosis-type-1
#4
Yuki Takeshima, Yuki Ohmori, Takashi Nakagawa, Yasuyuki Kaku, Jun-Ichi Kuratsu, Shigetoshi Yano
BACKGROUND: Neurofibromatosis type 1 (NF1) is a rare disease with an incidence of one in every 3000 births. Numerous studies have focused on the main function of NF1 as a tumor suppressor, while few have examined the cerebrovascular abnormalities observed in patients with NF1. It is worth noting that intracranial aneurysms are uncommon in this condition. CASE DESCRIPTION: We report a case of NF1 with a dissection of the distal segment of the superior cerebellar artery...
June 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28601919/cerebellar-exposure-to-cell-free-hemoglobin-following-preterm-intraventricular-hemorrhage-causal-in-cerebellar-damage
#5
Alex Adusei Agyemang, Kristbjörg Sveinsdóttir, Suvi Vallius, Snjolaug Sveinsdóttir, Matteo Bruschettini, Olga Romantsik, Ann Hellström, Lois E H Smith, Lennart Ohlsson, Bo Holmqvist, Magnus Gram, David Ley
Decreased cerebellar volume is associated with intraventricular hemorrhage (IVH) in very preterm infants and may be a principal component in neurodevelopmental impairment. Cerebellar deposition of blood products from the subarachnoid space has been suggested as a causal mechanism in cerebellar underdevelopment following IVH. Using the preterm rabbit pup IVH model, we evaluated the effects of IVH induced at E29 (3 days prior to term) on cerebellar development at term-equivalent postnatal day 0 (P0), term-equivalent postnatal day 2 (P2), and term-equivalent postnatal day 5 (P5)...
June 10, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/28590989/-it-s-not-a-tumor-a-rare-case-of-symptomatic-cerebellar-developmental-venous-anomaly
#6
Julie A Augenstein, Teresa Chapman, Michael J McNeil, Mark D Lo
Cerebral developmental venous anomalies (DVAs) are benign anatomical variants of the venous system and are commonly described as an incidental finding without clinical significance. Neurologic symptoms or abnormal examination findings are rare and usually attributed to hemorrhagic complications related to coexisting cavernous malformations. There have been limited case reports of symptomatic, uncomplicated DVAs described in the literature. The following case describes a previously healthy child who presented to the emergency department with an acute onset of altered mental status, headache, and focal neurologic examination abnormalities...
June 6, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28559083/superior-petrosal-vein-sacrifice-during-microvascular-decompression-perioperative-complication-rates-and-comparison-to-venous-preservation
#7
Brandon D Liebelt, Sean M Barber, Viren R Desai, Richard Harper, Jonathan Zhang, Rob Parrish, David S Baskin, Todd Trask, Gavin W Britz
OBJECTIVE: This study aimed to investigate the potential effect of sacrifice of the superior petrosal vein (SPV) on postoperative complications following microvascular decompression (MVD). METHODS: 98 consecutive patients undergoing MVD of cranial nerve 5 were retrospectively reviewed. Frequency of division of the SPV during surgery was recorded and any postoperative complications and imaging were recorded and analyzed. The specific anatomic variation of the superior petrosal venous complex was noted in those with complications...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28559079/respiratory-and-swallowing-outcomes-based-on-aneurysm-location-in-360-patients-with-subarachnoid-hemorrhage
#8
Isaac Josh Abecassis, Ryan P Morton, Lynn McGrath, Josiah Hanson, Anna H Xue, Cory M Kelly, Michael R Levitt, Laligam N Sekhar, Louis J Kim
INTRODUCTION: Aneurysmal subarachnoid hemorrhage (aSAH) may result in abnormal respiratory and swallowing function. We analyzed factors that may influence long-term respiratory and swallowing function in aSAH patients, and compared patients with anterior and posterior aneurysm locations. METHODS: We retrospectively reviewed 360 consecutive aSAH patients. We recorded location of the aneurysm and respiratory indices on admission, in-hospital adverse respiratory events and the need for tracheostomy (for respiratory failure) or percutaneous endoscopic gastrostomy (PEG) tube (for prolonged dysphagia)...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28559078/risk-factors-of-ventriculo-peritoneal-shunt-dependency-in-patients-with-spontaneous-cerebellar-hemorrhage
#9
Shih-Yuan Hsu, Hsin-Huan Chang, Fu-Yuan Shih, Yu-Jun Lin, Wei-Che Lin, Ben-Chung Cheng, Yu-Jih Su, Chia-Te Kung, Yu-Ni Ho, Nai-Wen Tsai, Cheng-Hsien Lu, Hung-Chen Wang
BACKGROUND: Hydrocephalus is a common complication after a spontaneous cerebellar hemorrhage (CH). This study focused on predicting ventriculo-peritorneal (VP) shunt-dependency in patients with spontaneous CH. METHODS: Ninety-nine patients with spontaneous CH were evaluated in this retrospective study. A comparison between patients with and those without VP shunt dependency during hospitalization was made. RESULTS: VP shunt-dependent hydrocephalus developed in 19...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28540120/remote-cerebellar-hemorrhage-report-of-two-different-cases
#10
Alireza Tabibkhooei, Morteza Taheri, Arash Fattahi, Feyzollah Ebrahimniya, Mohsen Benam
BACKGROUND: Remote cerebellar hemorrhage (RCH) is a rare complication after supratentorial craniotomies, which usually presents as linear hemorrhages on the surface of the cerebellum; the exact mechanism of it is not established yet. CASE DESCRIPTION: In case one, a 57-year-old patient demonstrated hemorrhage in the cerebellar sulci in favor of RCH 2 days after craniotomy for sphenoidal wing meningioma resection. He was asymptomatic and showed good prognosis after conservative treatment...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28531940/contusional-cerebellar-hemorrhage-related-to-placement-in-the-protrusion-position-after-atlantoaxial-fusion
#11
Yoshinari Miyaoka, Mikinobu Takeuchi, Norimitsu Wakao, Masahiro Aoyama, Kazuhiro Hongo, Masakazu Takayasu
BACKGROUND: Various complications after C1 lateral mass and C2 pedicle screw fusion surgery (C1LM-C2PSFS) have been reported. However, to our knowledge, this is the first report of contusional cerebellar hemorrhage caused by placement in the protrusion (chin-out) position after C1LM-2PSFS. CASE DESCRIPTION: An 81-year-old woman complaining of gait disturbance and clumsiness of both hands was diagnosed with cervical myelopathy with atlantoaxial subluxation. After we performed C1LM-C2PSFS, her neurologic deficits gradually improved, and there was no radiologic evidence of construct failure...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28527815/neuroimaging-and-neuropathological-characteristics-of-cerebellar-injury-in-extremely-low-birth-weight-infants
#12
Mayumi Matsufuji, Nozomi Sano, Hisashi Tsuru, Sachio Takashima
OBJECTIVE: To determine the morphological characteristics and pathogenic factors of cerebellar injury in extremely low birth weight infants (ELBWI). SUBJECTS AND METHODS: Neuroimaging examination was performed on 17 eligible surviving ELBWI. Their MR images were assessed and classified its pattern of cerebellar injuries. Brain pathology was examined on 15 patients, who isolated this neuroimaging subjects. The trend of brain pathologies was revealed. RESULTS: Four types of morphological pattern were recognized: (i) the absence of major portions in the cerebellum (6/17 cases); (ii) focal cerebellar tissue loss (2/17); (iii) unilateral cerebellar atrophy/hypoplasia (3/17); (iv) small cerebellum with entrapped fourth ventricle (6/17)...
May 17, 2017: Brain & Development
https://www.readbyqxmd.com/read/28527261/-posterior-reversible-encephalopathy-syndrome-report-of-a-fatal-case-and-analysis-of-predictive-factors-of-a-poor-prognosis
#13
Moisés Ulises Torres, Ligia Victoria Delgado, Natalia Giraldo, Piedad Urueña, Sergio Franco, Olga Helena Hernández
Posterior reversible encephalopathy syndrome is an illness with multiple causes and distinctive clinicalradiological characteristics that should be known by intensivists and emergency room physicians for a timely diagnosis and treatment. A fatal case of posterior reversible encephalopathy syndrome is presented, and the risk factors related to the outcome are identified.A 60-year-old man without a relevant medical history arrived at the emergency room presenting with depressed consciousness, seizures, and high blood pressure...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28520943/risk-assessment-of-hemorrhage-of-posterior-inferior-cerebellar-artery-aneurysms-in-posterior-fossa-arteriovenous-malformations
#14
Alice L Hung, Wuyang Yang, Maria Braileanu, Tomas Garzon-Muvdi, Justin M Caplan, Geoffrey P Colby, Alexander L Coon, Rafael J Tamargo, Judy Huang
BACKGROUND: Posterior fossa arteriovenous malformations (AVMs) are associated with increased risk of rupture and severe consequences from such rupture. The hemorrhagic risk of prenidal aneurysms (anr) on the posterior inferior cerebellar artery (PICA) may exceed that of the AVM in posterior fossa AVMs fed by PICA (PICA-AVM). OBJECTIVE: To characterize the relative risks of aneurysm and AVM hemorrhage in patients with posterior fossa AVMs. METHODS: We retrospectively reviewed patients diagnosed with AVM...
May 18, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28490165/remote-cerebellar-hemorrhage-presenting-with-cerebellar-mutism-after-spinal-surgery-an-unusual-case-report
#15
Halil Murat Sen, Mustafa Guven, Adem Bozkurt Aras, Murat Cosar
Dural injury during spinal surgery can subsequently give rise to a remote cerebellar hemorrhage (RCH). Although the incidence of such injury is low, the resulting hemorrhage can be life threatening. The mechanism underlying the formation of the hemorrhage is not known, but it is mostly thought to develop after venous infarction. Cerebellar mutism (CM) is a frequent complication of posterior fossa operations in children, but it is rarely seen in adults. The development of CM after an RCH has not been described...
May 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28484546/postoperative-hematoma-involving-brainstem-peduncles-cerebellum-deep-subcortical-white-matter-cerebral-hemispheres-following-chronic-subdural-hematoma-evacuation
#16
Mohana Rao Patibandla, Amit K Thotakura, Dinesh Shukla, Anirudh K Purohit, Gokul Chowdary Addagada, Manisha Nukavarapu
Among the intracranial hematomas, chronic subdural hematomas (CSDH) are the most benign with a mortality rate of 0.5-4.0%. The elderly and alcoholics are commonly affected by CSDH. Even though high percentage of CSDH patients improves after the evacuation, there are some unexpected potential complications altering the postoperative course with neurological deterioration. Poor outcome in postoperative period is due to complications like failure of brain to re-expand, recurrence of hematoma and tension pneumocephalus...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28454880/expression-of-negative-immune-regulatory-molecules-pro-inflammatory-chemokine-and-cytokines-in-immunopathology-of-ecm-developing-mice
#17
Ashwin V Khandare, Deepali Bobade, Mangesh Deval, Tushar Patil, Bhaskar Saha, D Prakash
The pathological events in human cerebral malaria are mimicked in the experimental cerebral malaria (ECM) in Plasmodium berghei ANKA (PBA)-infected C57BL/6 mice. Although previously implied in ECM, the kinetics of cytokines and chemokines expression-an essential functional feature for defining causality in ECM development-remained untested. Herein, we characterized the immunopathological changes and the expression of negative immune regulatory molecules, cytokines and chemokines through asymptomatic (3days after infection, 3dpi), symptomatic (5dpi) and ECM (7dpi) stages in PBA-infected C57BL/6 mice...
April 25, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28450438/large-basilar-apex-aneurysms-treated-with-flow-diverter-stents
#18
V Da Ros, J Caroff, A Rouchaud, C Mihalea, L Ikka, J Moret, L Spelle
BACKGROUND AND PURPOSE: The treatment of wide-neck, large basilar apex aneurysms is challenging with either an endovascular or a surgical approach. The aim of the present study was to report our experience treating basilar apex aneurysms with flow-diverter stents and to evaluate their efficacy and safety profile in this specific anatomic condition. MATERIALS AND METHODS: We retrospectively analyzed data from all consecutive patients treated with flow-diverter stents at our institution between January 2011 and January 2015...
April 27, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28402517/posterior-inferior-cerebellar-artery-vertebral-artery-subarachnoid-hemorrhage-a-comparison-of-saccular-vs-dissecting-aneurysms
#19
Mitchell T Foster, Amit Herwadkar, Hiren C Patel
BACKGROUND: Two distinct categories of aneurysms are described in relation to the posterior inferior cerebellar artery (PICA) and vertebral artery (VA): saccular (SA) and dissecting (DA) types. This distinction is often unrecognized because abnormalities here are uncommon and most studies are small. OBJECTIVE: To determine if there are any differences in the clinical presentation, in-hospital course, or outcomes in patients with DA vs SA of the PICA or VA. METHODS: Thirty-eight patients with a VA or PICA aneurysm were identified from a departmental subarachnoid hemorrhage database and categorized into DA or SA types...
April 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28402473/cavernous-malformation-associated-with-arterialized-developmental-venous-anomaly-a-case-report
#20
Kenta Nakase, Yasushi Motoyama, Tokiko Nakai, Yasuhiro Takeshima, Ichiro Nakagawa, Young-Su Park, Chiho Ohbayashi, Hiroyuki Nakase
BACKGROUND AND IMPORTANCE: Formation of cavernous malformations (CMs) has been recognized to be associated with developmental venous anomaly (DVA) by many authors. Hemodynamic stress due to venous outflow restriction could be hypothesized as a cause. On the other hand, a rare subgroup of DVA with an arterial component has been reported as likely to hemorrhage or be symptomatic. Cases of arterialized DVAs reported previously have not been associated with the presence of CM. CLINICAL PRESENTATION: We present herein a case report of arterialized DVA in the brainstem with repeated cerebellar hemorrhage...
June 1, 2017: Neurosurgery
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