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https://www.readbyqxmd.com/read/28228396/case-of-a-cerebral-abscess-caused-by-porphyromonas-gingivalis-in-a-subject-with-periodontitis
#1
Frederic Van der Cruyssen, Koenraad Grisar, Honorine Maes, Constantinus Politis
We report the case of a 65-year-old man presenting with generalised seizures after developing a right frontal brain abscess. Stereotactic aspiration and subsequent matrix assisted laser desorption/ionisation time-of-flight analyzer (MALDI-TOF) spectrometry revealed Porphyromonas gingivalis as the only causative anaerobe microorganism. Secondary incision and drainage was required due to neurological deterioration with increased dimensions of the abscess, intracranial pressure and formation of a subdural occipitoparietal empyema...
February 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28226829/a-sparse-laguerre-volterra-autoregressive-model-for-seizure-prediction-in-temporal-lobe-epilepsy
#2
Pen-Ning Yu, Shokofeh A Naiini, Christi N Heck, Charles Y Liu, Dong Song, Theodore W Berger, Pen-Ning Yu, Shokofeh A Naiini, Christi N Heck, Charles Y Liu, Dong Song, Theodore W Berger, Shokofeh A Naiini, Charles Y Liu, Pen-Ning Yu, Theodore W Berger, Christi N Heck, Dong Song
A sparse Laguerre-Volterra autoregressive model has been developed as feature extraction from subdural human EEG data for seizure prediction in temporal lobe epilepsy. The use of Laguerre-Volterra kernel can compactly yield an autoregressive model of longer system memory without increasing the number of the coefficients. In 6 sets of seizure, we used a sparse Laguerre-Volterra autoregressive model with 6 coefficients and the decay parameter of 0.2 and obtained the 10-fold cross-validation prediction results of high Matthews correlation coefficients (0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226822/hidden-markov-factor-analysis-as-a-spatiotemporal-model-for-electrocorticography
#3
Akinyinka Omigbodun, Werner K Doyle, Orrin Devinsky, Daniel Friedman, Thomas Thesen, Vikash Gilja, Akinyinka Omigbodun, Werner K Doyle, Orrin Devinsky, Daniel Friedman, Thomas Thesen, Vikash Gilja, Akinyinka Omigbodun, Thomas Thesen, Vikash Gilja, Werner K Doyle, Orrin Devinsky, Daniel Friedman
We present a new approach to extracting low-dimensional neural trajectories that summarize the electrocorticographic (ECoG) signals recorded with high-channel-count electrode arrays implanted subdurally. In our approach, Hidden-Markov Factor Analysis (HMFA), a finite set of factor analyzers are used to model the relationship between the high-dimensional ECoG neural space and a low-dimensional latent neural space; the factor analyzers at different time points are in turn linked together with a hidden Markov model...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224817/is-the-recurrence-rate-of-chronic-subdural-hematomas-dependent-on-the-duration-of-drainage
#4
Aydemir Kale, İbrahim İlker Öz, Eren Görkem Gün, Murat Kalaycı, Şanser Gül
OBJECTIVES: Chronic subdural hematoma (CSDH) is the most frequent type of intracranial hemorrhage which especially affects the elderly. Various surgical techniques have been reported for CSDH treatment; optimal treatment methods are still controversial. In this study, the effects of long drainage durations on results and recurrences were investigated in patients on whom closed system drainage with burr hole craniotomy was applied due to CSDH. METHODS: 90 patients with 105 CSDH were operated between 2008 and 2016...
February 22, 2017: Neurological Research
https://www.readbyqxmd.com/read/28223926/frontal-functional-connectivity-of-electrocorticographic-delta-and-theta-rhythms-during-action-execution-versus-action-observation-in-humans
#5
Claudio Babiloni, Claudio Del Percio, Susanna Lopez, Giancarlo Di Gennaro, Pier P Quarato, Luigi Pavone, Roberta Morace, Andrea Soricelli, Giuseppe Noce, Vincenzo Esposito, Vittorio Gallese, Giovanni Mirabella
We have previously shown that in seven drug-resistant epilepsy patients, both reaching-grasping of objects and the mere observation of those actions did desynchronize subdural electrocorticographic (ECoG) alpha (8-13 Hz) and beta (14-30) rhythms as a sign of cortical activation in primary somatosensory-motor, lateral premotor and ventral prefrontal areas (Babiloni et al., 2016a). Furthermore, that desynchronization was greater during action execution than during its observation. In the present exploratory study, we reanalyzed those ECoG data to evaluate the proof-of-concept that lagged linear connectivity (LLC) between primary somatosensory-motor, lateral premotor and ventral prefrontal areas would be enhanced during the action execution compared to the mere observation due to a greater flow of visual and somatomotor information...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28220524/language-fmri-and-direct-cortical-stimulation-in-epilepsy-preoperative-planning
#6
Alison Austermuehle, John Cocjin, Reynolds Richard, Shubhi Agrawal, Leigh Sepeta, William D Gaillard, Kareem Zaghloul, Sara Inati, William H Theodore
OBJECTIVE: Presurgical language assessment can help minimize damage to eloquent cortex during resective epilepsy surgery. Two methods for presurgical language mapping are functional MRI (fMRI) and direct cortical stimulation (DCS) of implanted subdural electrodes. We compared fMRI results to DCS to help optimize non-invasive language localization and assess its validity. METHODS: We studied 19 patients referred for presurgical evaluation of drug-resistant epilepsy...
February 21, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28220369/severe-head-injury-in-very-old-patients-to-treat-or-not-to-treat-results-of-an-online-questionnaire-for-neurosurgeons
#7
Claudia Unterhofer, Sebastian Hartmann, Christian F Freyschlag, Claudius Thomé, Martin Ortler
Due to the aging population, neurosurgeons are confronted with an increasing number of very old patients suffering from traumatic brain injury. Many of these patients present with an acute subdural hematoma. There is a lack of data on neurosurgical decision-making in elderly people. We investigated the importance of imaging criteria, patients' wishes, their surrogates' wishes, and patient demographics on treatment decisions chosen by neurosurgeons. An online questionnaire was sent to all German neurosurgical units via the German Society of Neurosurgery (DGNC)...
February 20, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28220367/routine-placement-of-subdural-drain-after-burr-hole-evacuation-of-chronic-and-subacute-subdural-hematoma-a-contrarian-evidence-based-approach
#8
Laxminadh Sivaraju, Ranjith K Moorthy, Visalakshi Jeyaseelan, Vedantam Rajshekhar
The objective of this paper was to evaluate whether available evidence supporting placement of subdural drain placement after evacuation of chronic subdural haematoma (CSDH) is applicable to a cohort of patients managed by us. In this observational cohort study, clinical follow-up was obtained in 166 patients who underwent burr hole evacuation of CSDH without placement of subdural drain followed by 3 days of bed rest. The primary outcome studied was recurrence requiring reoperation. Factors predicting recurrence were also analysed...
February 20, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28217168/idiopathic-bilateral-chronic-subdural-hematoma-with-left-internal-carotid-artery-infarct-in-a-3-months-infant-a-rare-case-report
#9
Mahesh Kumar, Krishan Yadav, Saurabh Kumar Verma, Vikas Maheshwari
Spontaneous chronic subdural hematoma (CSH) in infants is extremely rare. A very limited number of cases are known and reported in literature. The clinical presentation can be myriad varying from asymptomatic cases to gross neurological deficits. We report a case of a 3-month-old child who presented to us with repeated episodes of focal seizures of the left upper and lower limb of 1 month duration. Subsequent imaging revealed bilateral CSH (right > left) with left internal carotid artery infarct and midline shift to left by 8 mm...
October 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28217157/emergency-anesthesia-for-evacuating-a-traumatic-acute-subdural-hemorrhage-in-a-child-overdosed-with-hypertonic-saline
#10
Chulananda Goonasekera, James Bedford, Sodhi Harpreet, Mariangela Giombini, Asme Sheikh
A previously healthy 1-year-old child with a traumatic acute subdural hemorrhage received 10 times higher dose of hypertonic saline inadvertently immediately before surgery. This case report describes deviations in fluid management needed to alleviate salt toxicity and its adverse effects during surgery under anesthesia perioperatively. The child made an uneventful recovery with no evident residual damage at follow-up.
October 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28217066/subdural-hematoma-occurred-after-spinal-anesthesia-in-a-human-immunodeficiency-virus-infected-patient
#11
Kyung Tae Kim, Ji Yeon Kim, Eun Mi Kim, Jun Hyun Kim
A 25-year-old male patient who was infected with human immunodeficiency virus (HIV) underwent a condyloma excision under spinal anesthesia. The patient complained of suspicious postdural puncture headache. The patient did not respond to conservative management. Subsequently, the subdural hematoma (SDH) was found through magnetic resonance imaging. In response, an epidural blood patch was used to improve the symptoms and inhibit the enlargement of the SDH. The patient was discharged after it was confirmed that a headache had subsided without increasing SDH...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28216211/the-association-of-surgical-method-with-outcomes-of-acute-subdural-hematoma-patients-experience-with-643-consecutive-patients
#12
Rimantas Vilcinis, Adomas Bunevicius, Arimantas Tamasauskas
OBJECTIVE: Optimal surgical management strategy of acute subdural hematoma (ASDH) patients is challenging. We investigated the association of decompressive craniectomy (DC) and osteoplastic craniotomy (OC) with outcomes in consecutive patients undergoing surgical evacuation of ASDH, and analyzed prognostic indicators. METHODS: We reviewed prospective institutional database of all adult ASDH patients operated by craniotomy from January, 2009 until January, 2016. Mortality and discharge outcomes (Glasgow outcomes scale or GOS) were analyzed as a function of surgical method adjusting for age, admission GCS, ASDH thickness and midline shift...
February 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28215261/rem-sleep-behavior-disorder-causing-subdural-hematoma
#13
Oscar Ramos-Campoy, Carles Gaig, Monica Villas, Alex Iranzo, Joan Santamaria
No abstract text is available yet for this article.
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28215239/cataplexy-causing-subdural-hematomas
#14
Nuria Matos, Carles Gaig, Joan Santamaria, Alex Iranzo
No abstract text is available yet for this article.
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28213197/epileptic-seizures-in-patients-following-surgical-treatment-of-acute-subdural-hematoma-incidence-risk-factors-patient-outcome-and-development-of-a-new-scoring-system-for-prophylactic-antiepileptic-treatment-gate-24-score
#15
Sae-Yeon Won, Daniel Dubinski, Eva Herrmann, Colleen Cuca, Adam Strzelczyk, Volker Seifert, Juergen Konczalla, Thomas M Freiman
OBJECT: Clinically evident or subclinical seizures are common manifestation in acute subdural hematoma (aSDH); however, there is a paucity of research investigating the relationship between seizures and aSDH. The purpose of this study is, firstly to determine incidence, predictors of seizures and secondly establish a guideline in patients with aSDH to standardize the decision for prophylactic antiepileptic treatment. METHOD: The author analyzed 139 patients with aSDH treated from 2007 until 2015...
February 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28210405/titanium-clamps-for-a-simple-low-profile-autologous-osteosynthesis-in-the-reconstruction-of-posttraumatic-craniofacial-convexital-skeletal-disruption
#16
Amos Olufemi Adeleye, Toluyemi Adefolarin Malomo
Attempts at reconstruction of posttraumatic craniofacial defects (PTCDs) can be a challenge in low-resource practice areas of the world where the needed biomaterials are logistically beyond reach. A simple low-profile technique of autologous osteosynthesis for PTCD using the titanium clamps is presented in this report. In addition, a 6-year prospective database on a consecutive cohort of patients who underwent this procedure was analyzed for clinical, functional, and aesthetic outcomes, both in-hospital and at midterm follow-up...
March 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/28202833/-emergency-decompressive-craniotomy-in-the-emergency-room-was-effective-in-severe-acute-subdural-hematoma-treatment-two-case-reports
#17
Naoto Shiomi, Tadashi Echigo, Hideki Oka, Masahiro Nozawa, Michiko Okada, Shiho Hiraizumi, Fumitaka Kato, Hirokazu Koseki, Yoichi Hashimoto, Akihiko Hino
The outcome of severe acute subdural hematoma is unfavorable. In particular, patients with levels of consciousness of Glasgow Coma Scale(GCS)3 or 4 tend to be refractory to treatment. Decompressive craniotomy should be promptly performed to remove hematoma. However, if an operating room is not immediately available, emergency burr hole surgery is sometimes performed in the emergency room(primary care room)prior to craniotomy. A previous study has reported that the interval from injury to surgery influences the outcome of severe acute subdural hematoma...
February 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28193836/post-subdural-hematoma-transient-ischemic-attacks-hypoperfusion-mechanism-supported-by-quantitative-electroencephalography-and-transcranial-doppler-sonography
#18
Ayham M Alkhachroum, Guadalupe Fernandez-Baca Vaca, Sophia Sundararajan, Michael DeGeorgia
No abstract text is available yet for this article.
February 13, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28190553/cervical-spine-imaging-for-young-children-with-inflicted-trauma-expanding-the-injury-pattern
#19
Joanne Baerg, Arul Thirumoorthi, Rosemary Vannix, Asma Taha, Amy Young, Alexander Zouros
AIM: The purpose of this study was to document the incidence and pattern of cervical spine (c-spine) injuries in children below 36months with inflicted trauma. METHODS: An IRB approved, prospective cohort study was performed between July 2011 and January 2016. Inclusion criteria were: age below 36months, loss of consciousness after inflicted trauma, and one initial head computed tomography finding: a subdural, intraventricular, intraparenchymal, subarachnoid hemorrhage, diffuse axonal injury, hypoxic injury, or cerebral edema...
January 30, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28187809/management-of-bacterial-central-nervous-system-infections
#20
M C Brouwer, D van de Beek
Bacterial infections of the central nervous system present as a medical emergency, thus requiring rapid diagnosis and immediate treatment. The most prevalent bacterial infections seen in the intensive care unit can be summarized as acute bacterial meningitis, subdural empyema, intracerebral abscess, and ventriculitis, which all commonly involve the brain parenchyma. The infections can either be community-acquired or hospital-acquired, e.g., after neurosurgical intervention, as a complication of severe neurotrauma or related to indwelling cerebrospinal fluid drains...
2017: Handbook of Clinical Neurology
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