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Electroconvulsive seizure

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https://www.readbyqxmd.com/read/28335039/brain-temporal-complexity-in-explaining-the-therapeutic-and-cognitive-effects-of-seizure-therapy
#1
Faranak Farzan, Sravya Atluri, Ye Mei, Sylvain Moreno, Andrea J Levinson, Daniel M Blumberger, Zafiris J Daskalakis
Over 350 million people worldwide suffer from depression, a third of whom are medication-resistant. Seizure therapy remains the most effective treatment in depression, even when many treatments fail. The utility of seizure therapy is limited due to its cognitive side effects and stigma. The biological targets of seizure therapy remain unknown, hindering design of new treatments with comparable efficacy. Seizures impact the brains temporal dynamicity observed through electroencephalography. This dynamicity reflects richness of information processing across distributed brain networks subserving affective and cognitive processes...
March 3, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28277323/individualized-anesthetic-management-for-patients-undergoing-electroconvulsive-therapy-a-review-of-current-practice
#2
Ethan O Bryson, Amy S Aloysi, Kate G Farber, Charles H Kellner
Electroconvulsive therapy (ECT) remains an indispensable treatment for severe psychiatric illness. It is practiced extensively in the United States and around the world, yet there is little guidance for anesthesiologists involved with this common practice. Communication between the anesthesiologist and the proceduralist is particularly important for ECT, because the choice of anesthetic and management of physiologic sequelae of the therapeutic seizure can directly impact both the efficacy and safety of the treatment...
March 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28270633/-magnetic-stimulation-therapy-for-mood-disorder
#3
Shinsuke Kito
In Japan, approximately one million patients currently receive medical treatment for mood disorders. However, there are only a few available treatments for patients with treatment-resistant depression or bipolar depression. Repetitive transcranial magnetic stimulation (rTMS), a neuromodulation technique, has proven to be effective for treatment-resistant depression, and also has a potential therapeutic efficacy in patients with bipolar depression who do not respond to medication. Magnetic seizure therapy (MST) is an experimental technique for introducing a seizure by using rTMS, which demonstrates a therapeutic efficacy similar to that of electroconvulsive therapy (ECT), but with fewer cognitive side effects...
March 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28263242/dexmedetomidine-combined-with-intravenous-anesthetics-in-electroconvulsive-therapy-a-meta-analysis-and-systematic-review
#4
Xiang Li, Fang Tan, Nan Cheng, Na Guo, Zhi-Yong Zhong, Zi-Qing Hei, Qian-Qian Zhu, Shao-Li Zhou
OBJECTIVE: The aim of this study was to investigate how the combined use of dexmedetomidine with intravenous anesthetics influences seizure duration and circulatory dynamics in electroconvulsive therapy (ECT). METHODS: A literature search was performed to identify studies that evaluated the effect of dexmedetomidine on motor- or electroencephalogram (EEG)-based seizure durations and maximum mean arterial pressure (MAP) and heart rate (HR) after ECT. Moreover, recovery time and post-ECT agitation were evaluated...
March 4, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28236994/-electroconvulsive-therapy-and-level-of-evidence-from-causality-to-dose-effect-relationship
#5
J-A Micoulaud-Franchi, C Quilès, M Cermolacce, R Belzeaux, M Adida, E Fakra, J-M Azorin
OBJECTIVES: The first objective of this article is to summarize the history of electroconvulsive therapy (ECT) in psychiatry in order to highlight the transition from clinical level of evidence based on phenomenological descriptions to controlled trial establishing causal relationship. The second objective is to apply the criteria of causation for ECT, to focus on the dose-effect relationship criteria, and thus to analyze the conditions of application of these criteria for ECT. METHODS: A literature review exploring the use of electricity, ECT and electroencephalography (EEG) in psychiatry was conducted...
December 2016: L'Encéphale
https://www.readbyqxmd.com/read/28235671/scn3a-deficiency-associated-with-increased-seizure-susceptibility
#6
Tyra Lamar, Carlos G Vanoye, Jeffrey Calhoun, Jennifer C Wong, Stacey B B Dutton, Benjamin S Jorge, Milen Velinov, Andrew Escayg, Jennifer A Kearney
Mutations in voltage-gated sodium channels expressed highly in the brain (SCN1A, SCN2A, SCN3A, and SCN8A) are responsible for an increasing number of epilepsy syndromes. In particular, mutations in the SCN3A gene, encoding the pore-forming Nav1.3 α subunit, have been identified in patients with focal epilepsy. Biophysical characterization of epilepsy-associated SCN3A variants suggests that both gain- and loss-of-function SCN3A mutations may lead to increased seizure susceptibility. In this report, we identified a novel SCN3A variant (L247P) by whole exome sequencing of a child with focal epilepsy, developmental delay, and autonomic nervous system dysfunction...
February 22, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28235531/effects-of-the-concurrent-use-of-a-reduced-dose-of-propofol-with-divided-supplemental-remifentanil-and-moderate-hyperventilation-on-duration-and-morphology-of-electroconvulsive-therapy-induced-electroencephalographic-seizure-activity-a-randomized-controlled
#7
Kohki Nishikawa, Michiaki Yamakage
STUDY OBJECTIVE: The clinical adequacy of electroconvulsive therapy (ECT) depends on not only seizure duration but also seizure amplitude and postictal suppression. The objective of this study was to evaluate the effects of combination of a reduced dose of propofol and moderate hyperventilation on seizure duration and electrical stimulus requirement for adequate ictal amplitude and postictal suppression. DESIGN: Prospective, randomized, controlled trial. SETTING: Operating room at a municipal hospital...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28230278/deletion-of-psychiatric-risk-gene-cacna1c-impairs-hippocampal-neurogenesis-in-cell-autonomous-fashion
#8
Bianca Völkening, Kai Schönig, Golo Kronenberg, Dusan Bartsch, Tillmann Weber
Ca(2+) is a universal signal transducer which fulfills essential functions in cell development and differentiation. CACNA1C, the gene encoding the alpha-1C subunit (i.e., Cav 1.2) of the voltage-dependent l-type calcium channel (LTCC), has been implicated as a risk gene in a variety of neuropsychiatric disorders. To parse the role of Cav 1.2 channels located on astrocyte-like stem cells and their descendants in the development of new granule neurons, we created Tg(GLAST-CreERT2) /Cacna1c(fl/fl) /RCE:loxP mice, a transgenic tool that allows cell-type-specific inducible deletion of Cacna1c...
February 23, 2017: Glia
https://www.readbyqxmd.com/read/28217049/effectiveness-of-sodium-thiopentone-propofol-and-etomidate-as-an-ideal-intravenous-anesthetic-agent-for-modified-electroconvulsive-therapy
#9
Altaf Hussain Mir, Nida Farooq Shah, Mehraj Ud Din, Shabir Ahmad Langoo, Fayaz Ahmad Reshi
INTRODUCTION: Electroconvulsive therapy (ECT) is a well-established psychiatric treatment in which seizures are electrically induced in patients for therapeutic effects. ECT can produce severe disturbances in the cardiovascular system and a marked increase in cerebral blood flow and intracranial pressure. These cardiovascular changes may be altered using various anesthetic drugs. AIM AND OBJECTIVES: This study was undertaken to compare the effects of intravenous (IV) sodium thiopentone, propofol, and etomidate, used as IV anesthetic agents in modified ECT as regards, induction time and quality of anesthesia, alteration of hemodynamics, seizure duration, and recovery time...
January 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28211248/anesthetic-considerations-for-pediatric-electroconvulsive-therapy
#10
REVIEW
Andrew D Franklin, Jenna H Sobey, Eric T Stickles
Electroconvulsive therapy is being used more frequently in the treatment of many chronic and acute psychiatric illnesses in children. The most common psychiatric indications for pediatric electroconvulsive therapy are refractory depression, bipolar disorder, schizophrenia, catatonia, and autism. In addition, a relatively new indication is the treatment of pediatric refractory status epilepticus. The anesthesiologist may be called upon to assist in the care of this challenging and vulnerable patient population...
February 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28152470/effectiveness-of-electroconvulsive-therapy-in-patients-with-treatment-resistant-schizophrenia-a-retrospective-study
#11
Sandeep Grover, Subho Chakrabarti, Nandita Hazari, Ajit Avasthi
This study aimed to evaluate the effectiveness of electroconvulsive therapy (ECT) among patients with treatment resistant schizophrenia (TRS). Records of patients who had received ECT were reviewed to identify patients with TRS who were administered ECT in combination with clozapine. Socio-demographic, clinical data and ECT details were extracted. The most common diagnosis was of paranoid schizophrenia (49%) followed by undifferentiated schizophrenia (36%). A-fifth (22%) of the patients were judged to have poor response to clozapine...
March 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28121663/spontaneous-seizure-from-remifentanil-induction-during-electroconvulsive-therapy
#12
Charles H Kellner, Mustafa Cicek, Kate G Farber, Wojciech Reiss, Christopher Cowart
No abstract text is available yet for this article.
January 24, 2017: Journal of ECT
https://www.readbyqxmd.com/read/28074804/outcome-of-four-pretreatment-regimes-on-hemodynamics-during-electroconvulsive-therapy-a-double-blind-randomized-controlled-crossover-trial
#13
RANDOMIZED CONTROLLED TRIAL
Devangi Ashutosh Parikh, Sanchita Nitin Garg, Naina Parag Dalvi, Priyanka Pradip Surana, Deepa Sannakki, Bharati Anil Tendolkar
CONTEXT: Electroconvulsive therapy (ECT) is associated with tachycardia and hypertension. AIMS: The aim of this study was to compare two doses of dexmedetomidine, esmolol, and lignocaine with respect to hemodynamics, seizure duration, emergence agitation (EA), and recovery profile. METHODOLOGY: Thirty patients undergoing ECT were assigned to each of the following pretreatment regimes over the course of five ECT sessions in a randomized crossover design: Group D1 (dexmedetomidine 1 μg/kg), Group D0...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28072658/clinical-applicability-of-monitoring-the-time-interval-between-anesthesia-and-electroconvulsive-therapy
#14
Verònica Gálvez, Colleen K Loo
The anesthetic-electroconvulsive therapy (ECT) time interval (time interval elapsed from the beginning of anesthesia injection to the beginning of ECT stimulus) has been reported to have an important impact on seizure quality outcomes, because it is an indirect measure of the anesthetic plasma concentration when the ECT electrical stimulus is administered. We report the importance of the routine monitoring of this time interval in clinical settings, as an additional measure to interpret seizure quality outcomes at each ECT session, to further assist on ECT dosing decisions during the treatment course...
March 2017: Journal of ECT
https://www.readbyqxmd.com/read/28009625/an-unwanted-reduction-of-seizure-duration-during-electroconvulsive-therapy-with-diltiazem
#15
Taylor Morrisette, John Rice, P Brittany Vickery
No abstract text is available yet for this article.
March 2017: Journal of ECT
https://www.readbyqxmd.com/read/27984098/dynamic-cross-entropy
#16
Dorian Aur, Fidel Vila-Rodriguez
BACKGROUND: Complexity measures for time series have been used in many applications to quantify the regularity of one dimensional time series, however many dynamical systems are spatially distributed multidimensional systems. NEW METHOD: We introduced Dynamic Cross-Entropy (DCE) a novel multidimensional complexity measure that quantifies the degree of regularity of EEG signals in selected frequency bands. Time series generated by discrete logistic equations with varying control parameter r are used to test DCE measures...
October 28, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27934961/minimum-electric-field-exposure-for-seizure-induction-with-electroconvulsive-therapy-and-magnetic-seizure-therapy
#17
Won Hee Lee, Sarah H Lisanby, Andrew F Laine, Angel V Peterchev
Lowering and individualizing the current amplitude in electroconvulsive therapy (ECT) has been proposed as a means to produce stimulation closer to the neural activation threshold and more focal seizure induction, which could potentially reduce cognitive side effects. However, the effect of current amplitude on the electric field (E-field) in the brain has not been previously linked to the current amplitude threshold for seizure induction. We coupled MRI-based E-field models with amplitude titrations of motor threshold (MT) and seizure threshold (ST) in four nonhuman primates (NHPs) to determine the strength, distribution, and focality of stimulation in the brain for four ECT electrode configurations (bilateral, bifrontal, right-unilateral, and frontomedial) and magnetic seizure therapy (MST) with cap coil on vertex...
December 9, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27915091/electroconvulsive-stimulation-transiently-enhances-the-permeability-of-the-rat-blood-brain-barrier-and-induces-astrocytic-changes
#18
Masanobu Ito, Kuerban Bolati, Tomoya Kinjo, Koichiro Ichimura, Akiko Furuta, Declan M McLoughlin, Toshihito Suzuki, Heii Arai
The blood-brain barrier (BBB) plays important roles in both the physiological and pharmacological state of the brain. Transiently enhancing the permeability of the BBB may allow use of more types of medications for neuropsychiatric diseases. Several studies have demonstrated that seizures cause a transient decrease in BBB integrity. We studied the timing of BBB changes following seizures and the role of astrocytes in this process. Rats received 10 applications of electroconvulsive stimulation (ECS). They were then infused with sodium fluorescein, a fluorescent substance that rarely passes the BBB, via the inferior vena cava...
January 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/27907839/influence-of-picolinic-acid-on-seizure-susceptibility-in-mice
#19
Anna Cioczek-Czuczwar, Piotr Czuczwar, Waldemar Andrzej Turski, Jolanta Parada-Turska
BACKGROUND: The mechanism of drug resistance in epilepsy remains unknown. Picolinic acid (PIC) is an endogenous metabolite of the kynurenine pathway and a chelating agent added to dietary supplements. Both inhibitory and excitatory properties of PIC were reported. The aim of this study was to determine the influence of exogenously applied PIC upon the electroconvulsive threshold and the activity of chemical convulsants in eight models of epilepsy in mice. METHODS: All experiments were performed on adult male Swiss albino mice...
February 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27892759/the-use-of-ketamine-in-ect-anaesthesia-a-systematic-review-and-critical-commentary-on-efficacy-cognitive-safety-and-seizure-outcomes
#20
Verònica Gálvez, Lucy McGuirk, Colleen K Loo
OBJECTIVES: This review will discuss ECT efficacy and cognitive outcomes when using ketamine as an ECT anaesthetic compared to other anaesthetics, taking into account important moderator variables that have often not been considered to date. It will also include information on safety and other ECT outcomes (seizure threshold and quality). METHODS: A systematic search through MEDLINE, PubMed, PsychINFO, Cochrane Databases and reference lists from retrieved articles was performed...
November 28, 2016: World Journal of Biological Psychiatry
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