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https://www.readbyqxmd.com/read/27531288/untoward-events-associated-with-aberrant-fluid-infusion-during-cataract-surgery-laboratory-study-with-corroborative-clinical%C3%A2-observations
#1
Richard S Koplin, David C Ritterband, Jack M Dodick, Eric D Donnenfeld, Mark Schafer
PURPOSE: To determine the relationship between untoward events noted during phacoemulsification surgery associated with aberrant infusion misdirection and their causal relationship to current infusion sleeve design. SETTING: The New York Eye & Ear Infirmary of Mt. Sinai, New York, New York, USA. DESIGN: Retrospective case reports and experimental study. METHODS: Observations of live cataract surgery were documented with high-definition videography using 3 commercial phacoemulsification platforms...
August 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27181270/migraine-what-imaging-reveals
#2
REVIEW
Catherine D Chong, Todd J Schwedt, David W Dodick
Although migraine symptomatology is well-defined, our understanding of migraine pathophysiology is incomplete. Structural and functional brain imaging can contribute to a greater understanding of migraine pathophysiology. Recent neuroimaging studies demonstrate that migraine is associated with structural and functional alterations of brain regions commonly implicated in pain processing. This review summarizes recent brain structural and functional imaging findings in migraine and highlights those that are associated with characteristics such as the presence or absence of aura, associated cognitive dysfunction, sex-differences (male vs...
July 2016: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/25934848/milestone-compatible-neurology-resident-assessments-a-role-for-observable-practice-activities
#3
Lyell K Jones, Elliot L Dimberg, Christopher J Boes, Scott D Z Eggers, David W Dodick, Jeremy K Cutsforth-Gregory, Andrea N Leep Hunderfund, David J Capobianco
OBJECTIVE: Beginning in 2014, US neurology residency programs were required to report each trainee's educational progression within 29 neurology Milestone competency domains. Trainee assessment systems will need to be adapted to inform these requirements. The primary aims of this study were to validate neurology resident assessment content using observable practice activities (OPAs) and to develop assessment formats easily translated to the Neurology Milestones. METHODS: A modified Delphi technique was used to establish consensus perceptions of importance of 73 neurology OPAs among neurology educators and trainees at 3 neurology residency programs...
June 2, 2015: Neurology
https://www.readbyqxmd.com/read/25505036/late-life-migraine-accompaniments-a-narrative-review
#4
REVIEW
Kiratikorn Vongvaivanich, Paweena Lertakyamanee, Stephen D Silberstein, David W Dodick
BACKGROUND: Migraine is one of the most common chronic neurological disorders. In 1980, C. Miller Fisher described late-life migraine accompaniments as transient neurological episodes in older individuals that mimic transient ischemic attacks. There has not been an update on the underlying nature and etiology of late-life migraine accompanimentsd since the original description. PURPOSE: The purpose of this article is to provide a comprehensive and extensive review of the late-life migraine accompaniments including the epidemiology, clinical characteristics, differential diagnosis, and treatment...
September 2015: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/25500317/per-cent-of-patients-with-chronic-migraine-who-responded-per-onabotulinumtoxina-treatment-cycle-preempt
#5
RANDOMIZED CONTROLLED TRIAL
Stephen D Silberstein, David W Dodick, Sheena K Aurora, Hans-Christoph Diener, Ronald E DeGryse, Richard B Lipton, Catherine C Turkel
OBJECTIVE: The approved use of onabotulinumtoxinA for prophylaxis of headaches in patients with chronic migraine (CM) involves treatment every 12 weeks. It is currently unknown whether patients who fail to respond to the first onabotulinumtoxinA treatment cycle will respond to subsequent treatment cycles. To help inform decisions about treating non-responders, we examined the probability of treatment cycle 1 non-responders responding in cycle 2, and cycle 1 and 2 non-responders responding in cycle 3...
September 2015: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/25496899/functional-mri-of-migraine
#6
REVIEW
Todd J Schwedt, Chia-Chun Chiang, Catherine D Chong, David W Dodick
Migraine is a disabling neurological condition manifesting with attacks of headache, hypersensitivities to visual, auditory, olfactory and somatosensory stimuli, nausea, and vomiting. Exposure to sensory stimuli, such as odours, visual stimuli, and sounds, commonly triggers migraine attacks, and hypersensitivities to sensory stimuli are prominent during migraine attacks, but can persist with less magnitude between attacks. Functional MRI (fMRI) has been used to investigate the mechanisms that lead to migraine sensory hypersensitivities by measuring brain responses to visual, olfactory, and painful cutaneous stimulation, and functional connectivity analyses have investigated the functional organisation of specific brain regions and networks responsible for sensory processing...
January 2015: Lancet Neurology
https://www.readbyqxmd.com/read/25464159/assessing-clinically-meaningful-treatment-effects-in-controlled-trials-chronic-migraine-as-an-example
#7
David W Dodick, Catherine C Turkel, Ronald E DeGryse, Hans-Christoph Diener, Richard B Lipton, Sheena K Aurora, Marissa E Nolan, Stephen D Silberstein
UNLABELLED: In addition to headache, persons with chronic migraine (CM) experience multiple symptoms, both ictal and interictal, that may contribute to their suffering. Translating clinical trial results into practice requires assessment of the results' clinical meaningfulness. When examining treatment benefit in this disabled patient population, multiple headache-symptom measures should be considered to fully reflect clinical relevance. Currently, only onabotulinumtoxinA is approved specifically for headache prophylaxis in adults with CM...
February 2015: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/25297013/safety-and-efficacy-of-ald403-an-antibody-to-calcitonin-gene-related-peptide-for-the-prevention-of-frequent-episodic-migraine-a-randomised-double-blind-placebo-controlled-exploratory-phase-2-trial
#8
RANDOMIZED CONTROLLED TRIAL
David W Dodick, Peter J Goadsby, Stephen D Silberstein, Richard B Lipton, Jes Olesen, Messoud Ashina, Kerri Wilks, David Kudrow, Robin Kroll, Bruce Kohrman, Robert Bargar, Joe Hirman, Jeff Smith
BACKGROUND: Calcitonin gene-related peptide (CGRP) is crucial in the pathophysiology of migraine. We assessed the safety, tolerability, and efficacy of ALD403, a genetically engineered humanised anti-CGRP antibody, for migraine prevention. METHODS: In this randomised, double-blind, placebo-controlled, exploratory, proof-of-concept phase 2 trial, patients aged 18-55 years with five to 14 migraine days per 28-day period were randomly assigned (1:1) via an interactive web response system to receive an intravenous dose of ALD403 1000 mg or placebo...
November 2014: Lancet Neurology
https://www.readbyqxmd.com/read/25078718/safety-and-efficacy-of-peripheral-nerve-stimulation-of-the-occipital-nerves-for-the-management-of-chronic-migraine-long-term-results-from-a-randomized-multicenter-double-blinded-controlled-study
#9
RANDOMIZED CONTROLLED TRIAL
David W Dodick, Stephen D Silberstein, Kenneth L Reed, Timothy R Deer, Konstantin V Slavin, Billy Huh, Ashwini D Sharan, Samer Narouze, Alon Y Mogilner, Terrence L Trentman, Joe Ordia, Julien Vaisman, Jerome Goldstein, Nagy Mekhail
BACKGROUND: Recent studies evaluated short-term efficacy and safety of peripheral nerve stimulation (PNS) of the occipital nerves for managing chronic migraine. We present 52-week safety and efficacy results from an open-label extension of a randomized, sham-controlled trial. METHODS: In this institutional review board-approved, randomized, multicenter, double-blinded study, patients were implanted with a neurostimulation system, randomized to an active or control group for 12 weeks, and received open-label treatment for an additional 40 weeks...
April 2015: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/24990187/operational-diagnostic-criteria-for-chronic-migraine-expert-opinion
#10
REVIEW
Stephen D Silberstein, Richard B Lipton, David W Dodick
OBJECTIVE: The prevalence, disability, progression, and treatment needs associated with chronic migraine (CM) mandate epidemiological, clinical, and basic research to better understand the clinical course of this disorder and to facilitate development of more effective therapies. Such efforts have been significantly impeded by lack of agreement within the headache specialist community of the most appropriate diagnostic criteria for CM. METHODS: This paper reviews the pertinent nosological literature and extensive field testing already performed...
July 2014: Headache
https://www.readbyqxmd.com/read/24781111/atypical-age-related-cortical-thinning-in-episodic-migraine
#11
Catherine D Chong, David W Dodick, Bradley L Schlaggar, Todd J Schwedt
BACKGROUND: Prior studies demonstrate reduced cortical thickness and volume in migraineurs. However, the effect of age on cortical thickness has not been assessed in migraineurs. In this study we investigated whether the process of aging on cortical thickness affects migraineurs differently compared to age-matched healthy controls, i.e. whether aging exacerbates cortical thinning in migraineurs. METHODS: Cortical thickness was estimated using a general linear model vertex-by-vertex approach for 32 healthy controls (mean age=35...
December 2014: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/24628923/pooled-analysis-of-the-safety-and-tolerability-of-onabotulinumtoxina-in-the-treatment-of-chronic-migraine
#12
RANDOMIZED CONTROLLED TRIAL
H-C Diener, D W Dodick, C C Turkel, G Demos, R E Degryse, N L Earl, M F Brin
BACKGROUND AND PURPOSE: OnabotulinumtoxinA was effective and well tolerated for prophylaxis of headache in patients with chronic migraine (CM) in two randomized, double-blind, placebo-controlled, phase 3 trials. To further assess the safety and tolerability of onabotulinumtoxinA in CM prophylaxis in adults, the pooled safety data from four double-blind, placebo-controlled trials were analyzed. METHODS: The pooled analysis included two phase 2 and two phase 3 double-blind, placebo-controlled trials...
June 2014: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/24627432/enhanced-pain-induced-activity-of-pain-processing-regions-in-a-case-control-study-of-episodic-migraine
#13
Todd J Schwedt, Catherine D Chong, Chia-Chun Chiang, Leslie Baxter, Bradley L Schlaggar, David W Dodick
OBJECTIVE: The objective of this study was to identify brain regions having aberrant pain-induced activation in migraineurs, thereby gaining insight into particular aspects of pain processing that are atypical in migraineurs. METHODS: Functional magnetic resonance imaging assessed whole brain responses to painful heat in 24 adult episodic migraineurs who were at least 48 hours pain free and 27 healthy controls. Regions differentially activated in migraineurs compared to controls were identified...
October 2014: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/24107267/onabotulinumtoxina-for-chronic-migraine-efficacy-safety-and-tolerability-in-patients-who-received-all-five-treatment-cycles-in-the-preempt-clinical-program
#14
RANDOMIZED CONTROLLED TRIAL
S K Aurora, D W Dodick, H-C Diener, R E DeGryse, C C Turkel, R B Lipton, S D Silberstein
OBJECTIVE: Chronic migraine (CM) is a prevalent and disabling neurological disorder. Phase III REsearch Evaluating Migraine Prophylaxis Therapy (PREEMPT) clinical program assessed efficacy and safety of onabotulinumtoxinA (BOTOX(®)) for prophylaxis of headaches in adults with CM. This secondary analysis assessed patients who received all five treatment cycles and completed the study. MATERIALS AND METHODS: PREEMPT (two phase III studies: 24-week double-blind, placebo-controlled [DBPC], parallel-group phase, followed by 32-week open-label [OL] phase) evaluated the efficacy and safety of onabotulinumtoxinA in CM (≥15 days/month with headache lasting ≥4 h a day)...
January 2014: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/23919895/migraine-genetics-part-ii
#15
REVIEW
Stephen D Silberstein, David W Dodick
Migraine clusters in families and is considered to be a strongly heritable disorder. Hemiplegic migraine is a rare subtype of migraine with aura that may occur as a familial or a sporadic condition. Three genes have been identified studying families with familial hemiplegic migraine (FHM). The first FHM gene that was identified is CACNA1A. A second gene, FHM2, has been mapped to chromosome 1 q 21-23. The defect is a new mutation in the α2 subunit of the Na/K pump (ATP1A2). A third gene (FHM3) has been linked to chromosome 2q24...
September 2013: Headache
https://www.readbyqxmd.com/read/23848970/migraine-genetics-a-review-part-i
#16
REVIEW
Stephen D Silberstein, David W Dodick
Significant progress in molecular genetics has advanced our understanding of the genetic basis of migraine. The fundamentals of molecular genetics, and the recent advances in the field, are important for clinicians to understand, as they provide a foundation for critical appraisal of the literature, unprecedented insights into the pathogenesis of the disorder, and reveal promising treatment targets for future drug development. This paper provides a primer of molecular genetics and will be followed by a companion paper on the genetic advances in migraine, the methodology of genome wide association studies, and the potential clinical implications...
September 2013: Headache
https://www.readbyqxmd.com/read/23790235/onabotulinumtoxina-for-treatment-of-chronic-migraine-preempt-24-week-pooled-subgroup-analysis-of-patients-who-had-acute-headache-medication-overuse-at-baseline
#17
RANDOMIZED CONTROLLED TRIAL
Stephen D Silberstein, Andrew M Blumenfeld, Roger K Cady, Ira M Turner, Richard B Lipton, Hans-Christoph Diener, Sheena K Aurora, Mai Sirimanne, Ronald E DeGryse, Catherine C Turkel, David W Dodick
Acute headache medication overuse (MO) is common in patients with chronic migraine (CM). We evaluated safety and efficacy of onabotulinumtoxinA as preventive treatment of headache in CM patients with baseline MO (CM+MO) in a planned secondary analysis from two similarly designed, randomized, placebo-controlled, parallel, Phase III trials. Patients were randomized to treatment groups (155-195 U of onabotulinumtoxinA or placebo) using MO (patient-reported and diary-captured frequency of intake) as a stratifying variable...
August 15, 2013: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/23406160/expert-consensus-recommendations-for-the-performance-of-peripheral-nerve-blocks-for-headaches-a-narrative-review
#18
REVIEW
Andrew Blumenfeld, Avi Ashkenazi, Uri Napchan, Steven D Bender, Brad C Klein, Randall Berliner, Jessica Ailani, Jack Schim, Deborah I Friedman, Larry Charleston, William B Young, Carrie E Robertson, David W Dodick, Stephen D Silberstein, Matthew S Robbins
OBJECTIVE: To describe a standardized methodology for the performance of peripheral nerve blocks (PNBs) in the treatment of headache disorders. BACKGROUND: PNBs have long been employed in the management of headache disorders, but a wide variety of techniques are utilized in literature reports and clinical practice. METHODS: The American Headache Society Special Interest Section for PNBs and other Interventional Procedures convened meetings during 2010-2011 featuring formal discussions and agreements about the procedural details for occipital and trigeminal PNBs...
March 2013: Headache
https://www.readbyqxmd.com/read/23115208/migraine-headache-is-present-in-the-aura-phase-a-prospective-study
#19
Jakob M Hansen, Richard B Lipton, David W Dodick, Stephen D Silberstein, Joel R Saper, Sheena K Aurora, Peter J Goadsby, Andrew Charles
OBJECTIVES: Migraine aura is commonly considered to be a distinct phase of a migraine attack that precedes headache. The objective of the study was to examine a large number of prospectively recorded attacks of migraine with aura and determine the timing of headache and other migraine symptoms relative to aura. METHODS: As part of a clinical trial we collected prospective data on the time course of headache and other symptoms relative to the aura. Patients (n = 267) were enrolled from 16 centers, and asked to keep a headache diary for 1 month (phase I)...
November 13, 2012: Neurology
https://www.readbyqxmd.com/read/23101482/teleconcussion-an-innovative-approach-to-screening-diagnosis-and-management-of-mild-traumatic-brain-injury
#20
Bert B Vargas, Dwight D Channer, David W Dodick, Bart M Demaerschalk
Concussion awareness and management in sports have gained a great deal of attention in light of research illustrating the potentially devastating consequences of repeated traumatic brain injuries. In order to address this public health crisis, numerous states have passed legislation that mandates medical clearance before being eligible to return to play of concussed athletes by a qualified healthcare provider. As the number of qualified healthcare providers with expertise in the diagnosis and management of concussions remains very small, patient safety and the ability to fulfill these legislative return-to-play requirements present unique problems to rural communities without easy access to subspecialty care...
December 2012: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
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