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Presurgical evaluation

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https://www.readbyqxmd.com/read/29352627/indications-and-limits-of-stereoelectroencephalography-seeg
#1
REVIEW
Lorella Minotti, Alexandra Montavont, Julia Scholly, Louise Tyvaert, Delphine Taussig
Epilepsy surgery is now an accepted treatment to achieve seizure control in carefully selected patients, both children and adults, suffering from drug-resistant focal epilepsy. Although surgical strategies can often be defined on the basis of non-invasive diagnostic procedures, and despite the recent advances in this field, an increasing number of more complex cases requires invasive EEG (iEEG) to provide precise information on the localization of the epileptogenic zone (EZ), its relationships with eloquent cortex (EC), and the feasibility of a tailored surgical resection...
January 15, 2018: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/29334259/development-of-three-dimensional-brain-arteriovenous-malformation-model-for-patient-communication-and-young-neurosurgeon-education
#2
Mengqi Dong, Guangzhong Chen, Kun Qin, Xiaowen Ding, Dong Zhou, Chao Peng, Shaojian Zeng, Xianming Deng
PURPOSE: Rapid prototyping technology is used to fabricate three-dimensional (3D) brain arteriovenous malformation (AVM) models and facilitate presurgical patient communication and medical education for young surgeons. METHODS: Two intracranial AVM cases were selected for this study. Using 3D CT angiography or 3D rotational angiography images, the brain AVM models were reconstructed on personal computer and the rapid prototyping process was completed using a 3D printer...
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29334039/refractory-epilepsy-the-role-of-positron-emission-tomography
#3
Tommy L H Chan, Jonathan Romsa, David A Steven, Jorge G Burneo
RATIONALE: Presurgical localization of the epileptogenic focus is critical to successful surgery. Traditionally, localization of the epileptogenic focus depends on seizure semiology, scalp video-electroencephalography (vEEG), magnetic resonance imaging (MRI), neuropsychological assessment, and, when needed, intracranial EEG (iEEG). We aimed to explore the role of positron emission tomography (PET) in the presurgical evaluation of patients with refractory epilepsy. METHODS: A retrospective review was conducted on patients from London Health Sciences Centre (London, Ontario) with refractory epilepsy who underwent PET from September of 2011 to April of 2016...
January 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29332032/value-of-conventional-mri-and-diffusion-tensor-imaging-parameters-in-predicting-surgical-outcome-in-patients-with-degenerative-cervical-myelopathy
#4
Canghai Shen, Haiwei Xu, Baoshan Xu, Xiaoguang Zhang, Xiaofeng Li, Qiang Yang, Xinlong Ma
BACKGROUND: In addition to conventional magnetic resonance imaging (cMRI), diffusion tensor imaging (DTI) has been investigated as a potential diagnostic and prognostic tool for patients with degenerative cervical myelopathy (DCM). OBJECTIVE: To assess the efficacy of cMRI and DTI parameters in prediction of surgical outcome in DCM patients. METHODS: One hundred and forty-two patients with DCM who underwent presurgical cMRI and DTI of the cervical spine were included...
December 29, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/29331053/renal-flow-and-microstructure-anisotropy-refmap-mri-in-normal-and-peritumoral-renal-tissue
#5
Andrea L Liu, Artem Mikheev, Henry Rusinek, William C Huang, James S Wysock, James S Babb, Thorsten Feiweier, David Stoffel, Hersh Chandarana, Eric E Sigmund
BACKGROUND: Diffusion-weighted imaging (DWI) provides insight into the pathophysiology underlying renal dysfunction. Variants of DWI include intravoxel incoherent motion (IVIM), which differentiates between microstructural diffusion and vascular or tubular flow, and diffusion tensor imaging (DTI), which quantifies diffusion directionality. PURPOSE: To investigate the reproducibility of joint IVIM-DTI and compare controls to presurgical renal mass patients. STUDY TYPE: Prospective cross-sectional...
January 13, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29325191/medium-term-outcome-and-ct-assessment-of-lateral-foraminotomy-at-the-lumbosacral-junction-in-dogs-with-degenerative-lumbosacral-stenosis
#6
Andrew John Worth, Angela Hartman, Janis P Bridges, Boyd R Jones, Joe I G Mayhew
OBJECTIVE:  This article aims to report the medium-term clinical outcome and assess persistence of enlargement of the lumbosacral lateral intervertebral neurovascular foramen using computed tomography (CT) volumetric analysis in dogs following lateral foraminotomy. MATERIALS:  Six dogs that underwent lumbosacral lateral foraminotomy on one or both sides were evaluated with CT prior to, immediately postoperatively (n = 2) and at 12 to 44 months of follow-up...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29321970/deepied-an-epileptic-discharge-detector-for-eeg-fmri-based-on-deep-learning
#7
Yongfu Hao, Hui Ming Khoo, Nicolas von Ellenrieder, Natalja Zazubovits, Jean Gotman
Presurgical evaluation that can precisely delineate the epileptogenic zone (EZ) is one important step for successful surgical resection treatment of refractory epilepsy patients. The noninvasive EEG-fMRI recording technique combined with general linear model (GLM) analysis is considered an important tool for estimating the EZ. However, the manual marking of interictal epileptic discharges (IEDs) needed in this analysis is challenging and time-consuming because the quality of the EEG recorded inside the scanner is greatly deteriorated compared to the usual EEG obtained outside the scanner...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29306539/random-ensemble-learning-for-eeg-classification
#8
Mohammad-Parsa Hosseini, Dario Pompili, Kost Elisevich, Hamid Soltanian-Zadeh
Real-time detection of seizure activity in epilepsy patients is critical in averting seizure activity and improving patients' quality of life. Accurate evaluation, presurgical assessment, seizure prevention, and emergency alerts all depend on the rapid detection of seizure onset. A new method of feature selection and classification for rapid and precise seizure detection is discussed wherein informative components of electroencephalogram (EEG)-derived data are extracted and an automatic method is presented using infinite independent component analysis (I-ICA) to select independent features...
January 3, 2018: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/29305254/pelvic-floor-functional-outcomes-after-total-abdominal-versus-total-laparoscopic-hysterectomy-for-endometrial-cancer
#9
Peta Higgs, Monika Janda, Rebecca Asher, Val Gebski, Peta Forder, Andreas Obermair
BACKGROUND: Pelvic floor functioning is an important concern for women requiring a hysterectomy for endometrial cancer. The incidence of pelvic floor symptoms has not been reported in women who have undergone a hysterectomy for early-stage endometrial cancer. OBJECTIVES: To evaluate pelvic floor function in women who have had surgical treatment for early stage endometrial cancer as part of the multinational Laparoscopic Approach to Cancer of the Endometrium (LACE) trial and to compare patients' outcomes who had total abdominal total versus total laparoscopic hysterectomy...
January 2, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29303866/pet-and-ictal-spect-can-be-helpful-for-localizing-epileptic-foci
#10
Tim J von Oertzen
PURPOSE OF REVIEW: Functional neuroimaging with PET and SPECT is a commonly used tool in presurgical evaluation. The following article reviews the literature of PET and SPECT in presurgical assessment of epilepsies published in the last year. RECENT FINDINGS: FDG-PET adds concomitant information in temporal and extratemporal lobe epilepsy in adults and children. The pattern of hypometabolism in FDG-PET is a good additional predictor or seizure outcome in TLE with mesial temporal sclerosis or negative MRI...
January 4, 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29288902/diagnostic-evaluation-and-surgical-management-of-pediatric-insular-epilepsy-utilizing-magnetoencephalography-and-invasive-eeg-monitoring
#11
Raheel Ahmed, Hiroshi Otsubo, Carter Snead, Elizabeth Donner, Elysa Widjaja, Ayako Ochi, James M Drake, James T Rutka
INTRODUCTION: The diagnosis and surgical management of pediatric patients with insular epilepsy is challenging due to variable and indistinct seizure semiology arising within the insular cortex. In addition, surgical approaches are associated with potential morbidity given the regional neurosurgical and vascular anatomy. Our institutional experience in evaluation and surgical management of insular epilepsy patients is presented. Diagnostic evaluation, surgical treatment and seizures outcomes are highlighted...
December 20, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29248286/perioperative-evaluation-of-regional-aortic-wall-shear-stress-patterns-in-patients-undergoing-aortic-valve-and-or-proximal-thoracic-aortic-replacement
#12
Emilie Bollache, Paul W M Fedak, Pim van Ooij, Ozair Rahman, S Chris Malaisrie, Patrick M McCarthy, James C Carr, Alex Powell, Jeremy D Collins, Michael Markl, Alex J Barker
OBJECTIVES: To assess in patients with aortopathy perioperative changes in thoracic aortic wall shear stress (WSS), which is known to affect arterial remodeling, and the effects of specific surgical interventions. METHODS: Presurgical and postsurgical aortic 4D flow MRI were performed in 33 patients with aortopathy (54 ± 14 years; 5 women; sinus of Valsalva (d_SOV)/midascending aortic (d_MAA) diameters = 44 ± 5/45 ± 6 mm) scheduled for aortic valve (AVR) and/or root (ARR) replacement...
November 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29244100/invasive-insular-sampling-in-pediatric-epilepsy-a-single-institution-experience
#13
Luke D Tomycz, Andrew T Hale, Ali S Haider, Dave F Clarke, Mark R Lee
BACKGROUND: It has been increasingly recognized that the insular cortex plays an important role in frontotemporal-parietal epilepsy in children. The insula, however, cannot be properly interrogated with conventional subdural grids, and its anatomy makes it difficult to implicate the insula with semiology or noninvasive modalities. Frame-based, stereotactic placement of insular depth electrodes for direct extraoperative monitoring is a relatively low-risk maneuver that allows for conclusive interrogation of this region, and, in select cases, can easily be replaced with a laser applicator for minimally invasive treatment via thermoablation...
December 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29242725/68ga-psma-pet-ct-imaging-predicting-intraprostatic-tumor-extent-extracapsular-extension-and-seminal-vesicle-invasion-prior-to-radical-prostatectomy-in-patients-with-prostate-cancer
#14
Christoph-Alexander J von Klot, Axel S Merseburger, Alena Böker, Sebastian Schmuck, Tobias L Ross, Frank M Bengel, Markus A Kuczyk, Christoph Henkenberens, Hans Christiansen, Hans-Jürgen Wester, Wiebke Solass, Marcel Lafos, Thorsten Derlin
Purpose: 68Ga-labeled prostate-specific membrane antigen (PSMA) ligand positron emission tomography/computed tomography (PET/CT) has shown promising results in patients with biochemical recurrence after primary therapy for prostate cancer. In this study, we evaluated the usefulness of PSMA I&T (imaging and therapy) PET/CT prior to radical prostatectomy. Methods: The study population consisted of 21 patients with prostate cancer who underwent 68Ga-PSMA I&T PET/CT before either open or laparoscopic radical prostatectomy...
December 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29236528/role-of-clinical-neuropsychology-in-deep-brain-stimulation-review-of-the-literature-and-considerations-for-clinicians
#15
Joseph A Mole, Simon J Prangnell
Deep Brain Stimulation (DBS) is an effective surgical therapy for several neurological movement disorders. The clinical neuropsychologist has a well-established role in the neuropsychological evaluation and selection of surgical candidates. In this article, we argue that the clinical neuropsychologist's role is much broader, when considered in relation to applied psychologists' core competencies. We consider the role of the clinical neuropsychologist in DBS in relation to: assessment, formulation, evaluation and research, intervention or implementation, and communication...
December 13, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/29226305/association-between-scalp-and-intracerebral-electroencephalographic-seizure-onset-patterns-a-study-in-different-lesional-pathological-substrates
#16
Hideaki Tanaka, Hui Ming Khoo, François Dubeau, Jean Gotman
OBJECTIVE: Our purpose was to determine the correlation between scalp electroencephalography (EEG) and intracerebral EEG (iEEG) seizure-onset patterns in patients with focal lesional epilepsy to determine whether scalp seizure-onset patterns can be specific to intracerebral seizure-onset patterns and to lesion type. METHODS: We retrospectively analyzed 61 patients with focal epilepsy and a structural magnetic resonance imaging (MRI)-visible lesion, who first underwent extensive scalp recordings and then iEEG studies (stereo-EEG) for presurgical evaluation, and who showed an iEEG seizure onset in the lesional/perilesional area...
December 11, 2017: Epilepsia
https://www.readbyqxmd.com/read/29222825/outcome-of-sonography-based-minimally-invasive-surgery-for-deep-infiltrating-endometriosis-of-the-ureter-and-urinary-bladder-a-retrospective-cohort-study
#17
Gernot Hudelist, Ayman Tammaa, Kristine Aas-Eng, Lisa Kirchner, Nadja Fritzer, Zoltan Nemeth, Michael Lamche
INTRODUCTION: To evaluate the accuracy of transvaginal sonography for preoperative detection of bladder endometriosis and surgical outcomes regarding fertility and pain symptoms of women with urinary tract endometriosis. MATERIAL AND METHODS: Retrospective cohort study of consecutive patients with urinary tract endometriosis undergoing laparoscopic partial cystectomy and/or ureterolysis/decompression, ureteric resection and end-to-end anastomosis or ureteroneocystostomy for ureteral stenosis and hydronephrosis...
December 8, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29216702/-sonographic-evaluation-of-achilles-tendon-healing-in-tenotomies-for-congenital-clubfoot-and-ponsetis-treatment-a-12-week-follow-up
#18
J G Ríos-Ruiz, D M González-Torres, L A Valdez-Jiménez
OBJECTIVE: The aim of this study was to determine the healing time of Achilles tendon in pediatric patients treated with Achilles tenotomy with the Ponseti method in Shriners Childrens Hospital of Mexico, AC. MATERIAL AND METHODS: Experimental, analytical, prospective, longitudinal study of patients with a diagnosis of idiopathic congenital clubfoot treated with the Ponseti method with serial static and dynamic evaluation by ultrasound in real time with a Siemens Diagnostic Ultrasound System Sonoline 650, linear transducer 10...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29205292/brain-regions-and-epileptogenicity-influence-epileptic-interictal-spike-production-and-propagation-during-nrem-sleep-in-comparison-with-wakefulness
#19
Isabelle Lambert, Nicolas Roehri, Bernard Giusiano, Romain Carron, Fabrice Wendling, Christian Benar, Fabrice Bartolomei
OBJECTIVE: Non-rapid eye movement (NREM) sleep is known to be a brain state associated with an activation of interictal epileptic activity. The goal of this work was to quantify topographic changes occurring during NREM sleep in comparison with wakefulness. METHOD: We studied intracerebral recordings of 20 patients who underwent stereo-electroencephalography (SEEG) during presurgical evaluation for pharmacoresistant focal epilepsy. We measured the number of interictal spikes (IS) and quantified the co-occurrence of IS between brain regions during 1 hour of NREM sleep and 1 hour of wakefulness...
December 3, 2017: Epilepsia
https://www.readbyqxmd.com/read/29198289/the-incidence-and-characterization-of-globus-sensation-dysphagia-and-odynophagia-following-surgery-for-obstructive-sleep-apnea
#20
Masanari G Kato, Mitchell J Isaac, M Boyd Gillespie, Ashli K O'Rourke
STUDY OBJECTIVES: To determine the incidence, duration, and predictors of swallowing-related symptoms following upper airway surgery for obstructive sleep apnea. METHODS: Adults (age 18 years or older) who underwent surgery for obstructive sleep apnea at a tertiary care institution from January 2012 to December 2015 were retrospectively reviewed. The incidence, duration, and associated factors of postoperative swallowing complaints were evaluated. RESULTS: A total of 130 patients (135 surgical encounters) met criteria for inclusion...
November 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
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