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https://www.readbyqxmd.com/read/29297939/technical-note-the-impact-of-deformable-image-registration-methods-on-dose-warping
#1
An Qin, Jian Liang, Xiao Han, Nicolette O'Connell, Di Yan
PURPOSE: To investigate the clinical-relevant discrepancy between doses warped by pure-image based deformable image registration (IM-DIR) and by biomechanical-model based DIR (BM-DIR) on intensity homogeneous organs. METHODS AND MATERIALS: Ten patients (5Head&Neck, 5Prostate) were included. A research DIR tool (ADMRIE_v1.12) was utilized for IM-DIR. After IM-DIR, BM-DIR was carried out for organs (parotids, bladder, and rectum) which often encompass sharp dose gradient...
January 3, 2018: Medical Physics
https://www.readbyqxmd.com/read/29297422/steady-state-pharmacokinetics-of-cycloserine-in-patients-on-terizidone-for-multidrug-resistant-tuberculosis
#2
R Court, L Wiesner, A Stewart, N de Vries, J Harding, G Maartens, T Gumbo, H McIlleron
SETTING: Terizidone/cycloserine (TRD/CS) is included in standard treatment regimens for multidrug-resistant tuberculosis (MDR-TB) in many countries. The steady state pharmacokinetics (PKs) of CS after TRD administration are not known. OBJECTIVES AND DESIGN: We recruited in-patients treated with 250-750 mg oral TRD daily as part of standard treatment regimens for pulmonary MDR-TB in Cape Town, South Africa. Plasma CS assays were performed in samples taken pre-dose and at 2, 4, 6, 8 and 10 h post-dose...
January 1, 2018: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29282469/efficacy-and-safety-of-intranasal-esketamine-adjunctive-to-oral-antidepressant-therapy-in-treatment-resistant-depression-a-randomized-clinical-trial
#3
Ella J Daly, Jaskaran B Singh, Maggie Fedgchin, Kimberly Cooper, Pilar Lim, Richard C Shelton, Michael E Thase, Andrew Winokur, Luc Van Nueten, Husseini Manji, Wayne C Drevets
Importance: Approximately one-third of patients with major depressive disorder (MDD) do not respond to available antidepressants. Objective: To assess the efficacy, safety, and dose-response of intranasal esketamine hydrochloride in patients with treatment-resistant depression (TRD). Design, Setting, and Participants: This phase 2, double-blind, doubly randomized, delayed-start, placebo-controlled study was conducted in multiple outpatient referral centers from January 28, 2014, to September 25, 2015...
December 27, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/29275697/the-economic-cost-of-treatment-resistant-depression-in-patients-referred-to-a-specialist-service
#4
Paul McCrone, Felicitas Rost, Leonardo Koeser, Iakovina Koutoufa, Stephanie Stephanou, Martin Knapp, David Goldberg, David Taylor, Peter Fonagy
BACKGROUND: Patients with treatment-resistant depression (TRD) suffer very significant morbidity and are at a disadvantage concerning optimal clinical management. There are high associated societal costs. AIMS: A detailed analysis of health economic costs in the United Kingdom in a group manifesting a severe form of TRD in the 12 months before their participation in a major randomized controlled treatment trial. METHODS: The sample consisted of 118 participants from the Tavistock Adult Depression Study...
December 23, 2017: Journal of Mental Health
https://www.readbyqxmd.com/read/29244906/finding-treatment-resistant-depression-in-real-world-data-how-a-data-driven-approach-compares-with-expert-based-heuristics
#5
M Soledad Cepeda, Jenna Reps, Daniel Fife, Clair Blacketer, Paul Stang, Patrick Ryan
BACKGROUND: Depression that does not respond to antidepressants is treatment-resistant depression (TRD). TRD definitions include assessments of treatment response, dose and duration, and implementing these definitions in claims databases can be challenging. We built a data-driven TRD definition and evaluated its performance. METHODS: We included adults with depression, ≥1 antidepressant, and no diagnosis of mania, dementia, or psychosis. Subjects were stratified into those with and without proxy for TRD...
December 15, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/29228516/refining-prediction-in-treatment-resistant-depression-results-of-machine-learning-analyses-in-the-trd-iii-sample
#6
Alexander Kautzky, Markus Dold, Lucie Bartova, Marie Spies, Thomas Vanicek, Daniel Souery, Stuart Montgomery, Julien Mendlewicz, Joseph Zohar, Chiara Fabbri, Alessandro Serretti, Rupert Lanzenberger, Siegfried Kasper
OBJECTIVE: The study objective was to generate a prediction model for treatment-resistant depression (TRD) using machine learning featuring a large set of 47 clinical and sociodemographic predictors of treatment outcome. METHOD: 552 Patients diagnosed with major depressive disorder (MDD) according to DSM-IV criteria were enrolled between 2011 and 2016. TRD was defined as failure to reach response to antidepressant treatment, characterized by a Montgomery-Asberg Depression Rating Scale (MADRS) score below 22 after at least 2 antidepressant trials of adequate length and dosage were administered...
December 5, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29225582/significant-need-for-a-french-network-of-expert-centers-enabling-a-better-characterization-and-management-of-treatment-resistant-depression-fondation-fondamental
#7
Antoine Yrondi, Djamila Bennabi, Emmanuel Haffen, Marion Garnier, Frank Bellivier, Thierry Bourgerol, Vincent Camus, Thierry D'Amato, Olivier Doumy, Frédéric Haesebaert, Jérôme Holtzmann, Christophe Lançon, Philippe Vignaud, Fanny Moliere, Isabel Nieto, Raphaëlle Marie Richieri, Philippe Domenech, Corentin Rabu, Luc Mallet, Liova Yon, Laurent Schmitt, Florian Stephan, Guillaume Vaiva, Michel Walter, Pierre-Michel Llorca, Philippe Courtet, Marion Leboyer, Wissam El-Hage, Bruno Aouizerate
Background: Major depression is characterized by (i) a high lifetime prevalence of 16-17% in the general population; (ii) a high frequency of treatment resistance in around 20-30% of cases; (iii) a recurrent or chronic course; (iv) a negative impact on the general functioning and quality of life; and (v) a high level of comorbidity with various psychiatric and non-psychiatric disorders, high occurrence of completed suicide, significant burden along with the personal, societal, and economic costs...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29185233/estimating-prevalence-and-healthcare-utilization-for-treatment-resistant-depression-in-japan-a-retrospective-claims-database-study
#8
Jörg Mahlich, Sunny Tsukazawa, Frank Wiegand
BACKGROUND: Major depressive disorders (MDDs) including treatment-resistant depression (TRD) are common disabling conditions, but data on their epidemiology in Japan are limited. This study investigated the incidence, epidemiology, and direct medical costs of TRD and pharmaceutically-treated depression (PTD) in Japan to increase our health economic understanding of this phenotype of MDD. METHODS: A retrospective cohort study from a private health insurance claims database estimated the 1-year incidence of PTD and TRD and described the health services used and direct medical costs associated with these conditions...
November 28, 2017: Drugs—Real World Outcomes
https://www.readbyqxmd.com/read/29161674/deep-brain-stimulation-of-the-subcallosal-cingulate-gyrus-in-patients-with-treatment-resistant-depression-a-double-blinded-randomized-controlled-study-and-long-term-follow-up-in-eight-patients
#9
Angela Merkl, Sabine Aust, Gerd-Helge Schneider, Veerle Visser-Vandewalle, Andreas Horn, Andrea A Kühn, Jens Kuhn, Malek Bajbouj
BACKGROUND: Deep brain stimulation (DBS) of the subcallosal cingulate gyrus (SCG) is an experimental approach in treatment-resistant depression (TRD). Short-term results of efficacy in DBS are incongruent and studies investigating long-term effects are warranted. METHODS: We assessed efficacy of SCG-DBS in eight patients randomized into a delayed-onset group (sham-DBS four weeks) and a non-delayed-onset group. The primary outcome measure was improvement on the Hamilton Depression Rating-Scale (HAMD-24-item-version)...
November 8, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29150633/ketamine-s-antidepressant-effect-is-mediated-by-energy-metabolism-and-antioxidant-defense-system
#10
Katja Weckmann, Michael J Deery, Julie A Howard, Renata Feret, John M Asara, Frederik Dethloff, Michaela D Filiou, Jamie Iannace, Christiana Labermaier, Giuseppina Maccarrone, Christian Webhofer, Larysa Teplytska, Kathryn Lilley, Marianne B Müller, Christoph W Turck
Fewer than 50% of all patients with major depressive disorder (MDD) treated with currently available antidepressants (ADs) show full remission. Moreover, about one third of the patients suffering from MDD does not respond to conventional ADs and develop treatment-resistant depression (TRD). Ketamine, a non-competitive, voltage-dependent N-Methyl-D-aspartate receptor (NMDAR) antagonist, has been shown to have a rapid antidepressant effect, especially in patients suffering from TRD. Hippocampi of ketamine-treated mice were analysed by metabolome and proteome profiling to delineate ketamine treatment-affected molecular pathways and biosignatures...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146474/a-systematic-review-and-meta-analysis-of-deep-brain-stimulation-in-treatment-resistant-depression
#11
Chanjuan Zhou, Hanping Zhang, Yinhua Qin, Tian Tian, Bing Xu, Jianjun Chen, Xinyu Zhou, Li Zeng, Liang Fang, Xunzhong Qi, Bin Lian, Haiyang Wang, Zicheng Hu, Peng Xie
BACKGROUND: Deep brain stimulation (DBS) has been applied in treatment-resistant depression (TRD) as a putative intervention targeting different brain regions. However, the antidepressant effects of DBS for TRD in recent clinical trials remain controversial. METHODS: We searched Scopus, EMBASE, the Cochrane Library, PubMed, and PsycINFO for all published studies investigating the efficacy of DBS in TRD up to Feb 2017. Hamilton depression rating scale (HDRS) scores and Montgomery-Asberg depression rating scale (MARDS) scores were compared between baseline levels and those after DBS using the standardized mean difference (SMD) with 95% confidence intervals (CIs)...
November 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29143405/cost-effectiveness-modeling-of-repetitive-transcranial-magnetic-stimulation-compared-to-electroconvulsive-therapy-for-treatment-resistant-depression-in-singapore
#12
Ying Jiao Zhao, Phern Chern Tor, Ai Leng Khoo, Monica Teng, Boon Peng Lim, Yee Ming Mok
BACKGROUND: Compared to electroconvulsive therapy (ECT), the cost-effectiveness of repetitive transcranial magnetic stimulation (rTMS) in the management of treatment-resistant depression (TRD) remains unclear. OBJECTIVE/HYPOTHESIS: This study evaluated the cost-effectiveness of rTMS vs. ECT for TRD from Singapore societal perspective. METHODS: We constructed a Markov model to project the cost and benefit of rTMS compared with ECT over one year in patients with TRD...
November 16, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29138992/use-of-ketamine-in-elderly-patients-with-treatment-resistant-depression
#13
REVIEW
Carolina Medeiros da Frota Ribeiro, Patricio Riva-Posse
PURPOSE OF REVIEW: The purpose of this paper is to provide a review of the use of ketamine as an antidepressant for treatment-resistant depression (TRD) in the geriatric population. Available treatment options for late-life treatment-resistant depression are limited and include electroconvulsive therapy and transcranial magnetic stimulation as well as possible pharmacologic augmentation. Ketamine has been shown to be a promising treatment in TRD; however, data regarding the use of ketamine in the elderly includes only five case reports...
November 15, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29133665/a-rare-case-of-bilateral-tractional-retinal-detachment-following-snakebite
#14
Nicey Roy Thomas, Debmalya Das, Kumar Saurabh, Rupak Roy
A 13-year-old female presented with diminution of vision in both eyes for 3 months following snakebite. Best-corrected visual acuities were hand movement in both eyes. Fundoscopy showed vitreous hemorrhage, and B-scan ultrasonography revealed an underlying tractional retinal detachment (TRD) involving the macula in both eyes. Patient underwent 25-gauge pars plana vitrectomy in conjunction with belt buckling, endolaser, and silicone oil tamponade in the left eye. At 6 weeks postoperatively, best-corrected visual acuity of the left eye was noted to be 20/200 with settled TRD and attached retina...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29103192/lipid-peroxidation-and-immune-biomarkers-are-associated-with-major-depression-and-its-phenotypes-including-treatment-resistant-depression-and-melancholia
#15
Magdalena Sowa-Kućma, Krzysztof Styczeń, Marcin Siwek, Paulina Misztak, Rafał J Nowak, Dominika Dudek, Janusz K Rybakowski, Gabriel Nowak, Michael Maes
To examine immune-inflammatory and oxidative (I&O) biomarkers in major depression (MDD) and its related phenotypes, we recruited 114 well-phenotyped depressed patients and 50 healthy controls and measured serum levels of interleukin (IL)-1α, soluble IL-1 receptor antagonist (sIL-1RA), soluble IL-2 receptor (sIL-2R), soluble IL-6 receptor (sIL-6R), soluble tumor necrosis factor receptor 60 and 80 kDa (sTNF-R1/R2), and thiobarbituric acid reactive substances (TBARS). Obtained results indicate that MDD is characterized by increased sIL-1RA, sTNF-R1, and TBARS concentrations...
November 4, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/29063521/blunted-amygdala-activity-is-associated-with-depression-severity-in-treatment-resistant-depression
#16
Jamie Ferri, Stuart J Eisendrath, Susanna L Fryer, Erin Gillung, Brian J Roach, Daniel H Mathalon
Up to 50% of individuals with major depressive disorder (MDD) do not recover after two antidepressant medication trials, and therefore meet the criteria for treatment-resistant depression (TRD). Mindfulness-based cognitive therapy (MBCT) is one promising treatment; however, the extent to which MBCT influences clinical outcomes relative to baseline neural activation remains unknown. In the present study we investigated baseline differences in amygdala activation between TRD patients and healthy controls (HCs), related amygdala activation to depression symptoms, and examined the impacts of MBCT and amygdala activation on longitudinal depression outcomes...
December 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/29041878/-influence-of-sympathetic-denervation-of-the-renal-artery-on-the-level-of-arterial-blood-pressure-cerebral-blood-flow-and-cognitive-function-in-patients-with-resistant-arterial-hypertension
#17
Y N Efimova, A V Lichikaki, B Y Lishmanov
PURPOSE: To study the effect of radiofrequency ablation of renal arteries on regional cerebral blood flow and cognitive function in patients with resistant arterial hypertension (AH). MATERIAL AND METHODS: Transcatheter renal denervation (TRD) was performed in 17 patients with resistant AH. Examination before and after TRD included SPECT with mTc-HMPAO, 24-hours blood pressure (BP) monitoring, and comprehensive neuropsychological testing. Fifteen patients without angiographic signs of carotid atherosclerosis, coronary artery disease and AH, neurological and psychiatric disorders were investigated as control group...
July 2017: Kardiologiia
https://www.readbyqxmd.com/read/29034354/prefrontal-connectivity-and-glutamate-transmission-relevance-to-depression-pathophysiology-and-ketamine-treatment
#18
Chadi G Abdallah, Christopher L Averill, Ramiro Salas, Lynnette A Averill, Philip R Baldwin, John H Krystal, Sanjay J Mathew, Daniel H Mathalon
BACKGROUND: Prefrontal global brain connectivity with global signal regression (GBCr) was proposed as a robust biomarker of depression, and was associated with ketamine's mechanism of action. Here, we investigated prefrontal GBCr in treatment-resistant depression (TRD) at baseline and following treatment. Then, we conducted a set of pharmacological challenges in healthy subjects to investigate the glutamate neurotransmission correlates of GBCr. METHODS: In study A, we used functional magnetic resonance imaging (fMRI) to compare GBCr between 22 TRD and 29 healthy control...
October 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/29030624/psilocybin-for-treatment-resistant-depression-fmri-measured-brain-mechanisms
#19
Robin L Carhart-Harris, Leor Roseman, Mark Bolstridge, Lysia Demetriou, J Nienke Pannekoek, Matthew B Wall, Mark Tanner, Mendel Kaelen, John McGonigle, Kevin Murphy, Robert Leech, H Valerie Curran, David J Nutt
Psilocybin with psychological support is showing promise as a treatment model in psychiatry but its therapeutic mechanisms are poorly understood. Here, cerebral blood flow (CBF) and blood oxygen-level dependent (BOLD) resting-state functional connectivity (RSFC) were measured with functional magnetic resonance imaging (fMRI) before and after treatment with psilocybin (serotonin agonist) for treatment-resistant depression (TRD). Quality pre and post treatment fMRI data were collected from 16 of 19 patients. Decreased depressive symptoms were observed in all 19 patients at 1-week post-treatment and 47% met criteria for response at 5 weeks...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030111/double-blind-proof-of-concept-poc-trial-of-low-field-magnetic-stimulation-lfms-augmentation-of-antidepressant-therapy-in-treatment-resistant-depression-trd
#20
Maurizio Fava, Marlene P Freeman, Martina Flynn, Bettina B Hoeppner, Richard Shelton, Dan V Iosifescu, James W Murrough, David Mischoulon, Cristina Cusin, Mark Rapaport, Boadie W Dunlop, Madhukar H Trivedi, Manish Jha, Gerard Sanacora, Gretchen Hermes, George I Papakostas
BACKGROUND: Low-Field Magnetic Stimulation (LFMS) is a novel, non-invasive, sub-threshold neuromodulation technique, shown in preliminary studies to have immediate mood elevating effects in both unipolar and bipolar depressed patients. OBJECTIVE: We aimed to assess the antidepressant augmentation effects at 48 h of LFMS administered on two consecutive days compared to sham treatment in treatment resistant depression (TRD) subjects, using the Sequential Parallel Comparison Design (SPCD)...
September 23, 2017: Brain Stimulation
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