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1.
BMC Health Serv Res ; 20(1): 1041, 2020 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-33183294

RESUMO

BACKGROUND: A large proportion of admissions to psychiatric hospitals happen as emergency admissions and many of them occur out of core working hours (during the weekends, on public holidays and during night time). However, very little is known about what determines admission times and whether the information of admission time bears any relevance for the clinical course of the patients. In other words, do admission times correlate with diagnostic groups? Can accumulations of crises be detected regarding circadian or weekly rhythms? Can any differences between workdays and weekends/public holidays be detected? May it even be possible to use information on admission times as a predictor for clinical relevance and severity of the presented condition measured by the length of stay? METHODS: In the present manuscript we analyzed data derived from 37'705 admissions to the Psychiatric District Hospital of Regensburg located in the Southern part of Germany covering the years 2013 to 2018 with regard to ICD-10 diagnostic groups and admission times. The hospital provides 475 beds for in-patient treatment in all fields of clinical psychiatry including geriatrics and addiction medicine. RESULTS: Several core questions could be answered based on our analysis: 1st Our analysis confirms that there is a high percentage of unheralded admissions out of core time showing broad variation. 2nd In contrary to many psychiatrists' misconceptions the time of admission has no relevant impact on the length of stay in the hospital. 3rd The predictive value of admission time regarding the allocation to ICD-10 diagnostic groups is low explaining only 1% of variability. CONCLUSIONS: Taken together, our data reveal the enormous variation of admission times of psychiatric patients accounting for the need of adequate and consistent provision of personnel and spatial resources.


Assuntos
Admissão do Paciente , Psiquiatria , Alemanha/epidemiologia , Hospitais Psiquiátricos , Humanos , Tempo de Internação
2.
Neuromodulation ; 22(8): 851-866, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30411429

RESUMO

BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) has become increasingly popular during the last decades mainly driven by the antidepressant effects of dorsolateral prefrontal cortex stimulation with "butterfly" coils. Only recently, alternative targets such as the dorsomedial prefrontal cortex (dmPFC) have been brought into focus and innovative coil designs such as the angled geometry of the double cone coil (DCC) have raised hope to reach even deeper located targets. OBJECTIVE: To provide a systematic and comprehensive review on the application of rTMS stimulation of the dmPFC using the DCC in neuropathological and healthy samples. METHODS: We systematically searched the MEDLINE® database (http://www.ncbi.nlm.nih.gov/pubmed/). Due to the heterogeneous naming of DCC stimulation over the dmPFC a variety of search terms was applied resulting in a numeral quantity of 340 hits. RESULTS: DCC stimulation over the dmPFC has been proven to be safe and feasible in various neuropsychiatric disorders and in healthy subjects. Clinical results are encouraging, but have to be considered as preliminary as data from sham-controlled clinical trials and knowledge about the neurobiological underpinnings are still scarce. CONCLUSION: DCC stimulation over the dmPFC represents a promising approach in the fast evolving noninvasive brain stimulation techniques aiming at the functional modulation of brain areas vitally involved in affect, sensory autonomic, cognitive, and salience regulation. This may hold potential for both neuroscientific research and clinical applications in the treatment of psychiatric disorders.


Assuntos
Transtorno Depressivo/terapia , Córtex Pré-Frontal , Estimulação Magnética Transcraniana/métodos , Transtorno Depressivo/psicologia , Humanos , Estimulação Magnética Transcraniana/instrumentação , Resultado do Tratamento
3.
Hum Brain Mapp ; 39(1): 554-562, 2018 01.
Artigo em Inglês | MEDLINE | ID: mdl-29064602

RESUMO

Noninvasive brain stimulation can modify phantom sounds for longer periods by modulating neural activity and putatively inducing regional neuroplastic changes. However, treatment response is limited and there are no good demographic or clinical predictors for treatment outcome. We used state-of-the-art voxel-based morphometry (VBM) to investigate whether transcranial magnetic stimulation-induced neuroplasticity determines therapeutic outcome. Sixty subjects chronically experiencing phantom sounds (i.e., tinnitus) received repetitive transcranial magnetic stimulation (rTMS) of left dorsolateral prefrontal and temporal cortex according to a protocol that has been shown to yield a significantly higher number of treatment responders than sham stimulation and previous stimulation protocols. Structural magnetic resonance imaging was performed before and after rTMS. In VBM whole-brain analyses (P < 0.05, FWE corrected), we assessed longitudinal gray matter changes as well as structural connectivity between the ensuing regions. We observed longitudinal mesoscopic gray matter changes of left dorsolateral prefontal (DLPFC), left operculo-insular, and right inferior temporal cortex (ITC) in responders (N = 22) but not nonresponders (N = 38), as indicated by a group × time interaction and post-hoc tests. These results were neither influenced by age, sex, hearing loss nor by tinnitus laterality, duration, and severity at baseline. Furthermore, we found robust DLPFC-insula and insula-ITC connectivity in responders, while only relatively weak DLPFC-insula connectivity and no insula-ITC connectivity could be demonstrated in nonresponders. Our results reinforce the implication of nonauditory brain regions in phantom sounds and suggest the dependence of therapeutic response on their neuroplastic capabilities. The latter in turn may depend on (differences in) their individual structural connectivity. Hum Brain Mapp 39:554-562, 2018. © 2017 Wiley Periodicals, Inc.


Assuntos
Encéfalo/diagnóstico por imagem , Plasticidade Neuronal , Zumbido/diagnóstico por imagem , Zumbido/terapia , Estimulação Magnética Transcraniana , Percepção Auditiva/fisiologia , Feminino , Substância Cinzenta/diagnóstico por imagem , Humanos , Processamento de Imagem Assistida por Computador , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Vias Neurais/diagnóstico por imagem , Resultado do Tratamento
4.
J Neural Transm (Vienna) ; 123(10): 1147-57, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27315823

RESUMO

Interference of ongoing neuronal activity and brain stimulation motivated this study to combine repetitive transcranial magnetic stimulation (rTMS) and relaxation techniques in tinnitus patients. Forty-two patients were enrolled in this one-arm proof-of-concept study to receive ten sessions of rTMS applied to the left dorsolateral prefrontal cortex and temporo-parietal cortex. During stimulation, patients listened to five different kinds of relaxation audios. Variables of interest were tinnitus questionnaires, tinnitus numeric rating scales, depressivity, and quality of life. Results were compared to results of historical control groups having received the same rTMS protocol (active control) and sham treatment (placebo) without relaxation techniques. Thirty-eight patients completed the treatment, drop-out rates and adverse events were low. Responder rates (reduction in tinnitus questionnaire (TQ) score ≥5 points 10 weeks after treatment) were 44.7 % in the study, 27.8 % in the active control group, and 21.7 % in the placebo group, differing between groups on a near significant level. For the tinnitus handicap inventory (THI), the main effect of group was not significant. However, linear mixed model analyses showed that the relaxation/rTMS group differed significantly from the active control group showing steeper negative THI trend for the relaxation/rTMS group indicating better amelioration over the course of the trial. Deepness of relaxation during rTMS and selection of active relaxation vs. passive listening to music predicted larger TQ. All remaining secondary outcomes turned out non-significant. This combined treatment proved to be a safe, feasible and promising approach to enhance rTMS treatment effects in chronic tinnitus.


Assuntos
Córtex Pré-Frontal/fisiologia , Terapia de Relaxamento/métodos , Zumbido/terapia , Estimulação Magnética Transcraniana/métodos , Adolescente , Adulto , Idoso , Doença Crônica/terapia , Terapia Combinada , Método Duplo-Cego , Eletroencefalografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Estudos Retrospectivos , Inquéritos e Questionários , Resultado do Tratamento , Adulto Jovem
5.
Int J Neuropsychopharmacol ; 17(6): 833-43, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24423214

RESUMO

Schizophrenia is a severe, debilitating, chronic disease that is accompanied by morphologic changes within the brain. However, it is unclear to what extent alterations of grey and white matter in schizophrenia are linked to the disease itself, or whether they are a consequence of neuroleptic treatment. Typical and atypical antipsychotics exert differential effects on brain structure. Moreover, atypical antipsychotics may have distinct profiles with respect to grey matter in schizophrenic patients. Findings on drug-induced grey matter changes are heterogeneous due to variation in stage of illness, duration of treatment and use of multiple antipsychotics. Using voxel-based morphometry applied to high-resolution magnetic resonance images, we show that monotherapy with the atypical agent quetiapine (mean daily dose = 445 mg ± 200 s.d.) may induce structural brain changes in first-episode schizophrenia patients (N = 20) within 21 d of treatment. Specifically, we demonstrate longitudinal macroscopic changes (i.e. grey matter increases) in the left amygdalohippocampal region that were predicted by drug plasma levels but not daily doses. These structural alterations were accompanied by a clinical improvement of schizophrenic symptoms. Comparison with healthy controls (n = 30) showed that grey matter amount in the respective amygdalar region was significantly reduced in unmedicated first-episode schizophrenia patients. These findings suggest that drug-induced neuroplastic changes in schizophrenia can occur quickly and are dependent on pharmacokinetics.


Assuntos
Tonsila do Cerebelo/efeitos dos fármacos , Antipsicóticos/uso terapêutico , Dibenzotiazepinas/uso terapêutico , Hipocampo/efeitos dos fármacos , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Idoso , Tonsila do Cerebelo/patologia , Feminino , Seguimentos , Substância Cinzenta/efeitos dos fármacos , Substância Cinzenta/patologia , Hipocampo/patologia , Humanos , Processamento de Imagem Assistida por Computador , Estudos Longitudinais , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Plasticidade Neuronal/efeitos dos fármacos , Fumarato de Quetiapina , Esquizofrenia/patologia , Adulto Jovem
6.
J Head Trauma Rehabil ; 29(5): 432-42, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23982788

RESUMO

BACKGROUND: Up to 53% of individuals suffering from traumatic brain injuries develop tinnitus. OBJECTIVE: To review the current literature on trauma-associated tinnitus in order to provide orientation for the clinical management of patients with trauma-associated tinnitus. MATERIALS: A systematic literature search has been conducted in PubMed database applying the search terms posttraumatic tinnitus and trauma-associated tinnitus. Results have been complemented by related studies, book chapters, and the authors' clinical experience. RESULTS: Not only mechanical, pressure-related, or noise-related head traumata but also neck injuries and emotional trauma can cause tinnitus. Exact diagnosis is essential. Disorders such as ossicular chain disruption, traumatic eardrum perforation, or perilymphatic fistula can be surgically treated. It should also be considered that pulsatile tinnitus can be a sign of life-threatening disorders such as carotid cavernous fistulas, arteriovenous malformations, and carotid dissections. Also, posttraumatic stress disorder should be taken into consideration as a potential contributing factor. CONCLUSIONS: There is an evident mismatch between the high incidence of trauma-associated tinnitus and scarce literature on the topic. A consistent and-at best-standardized assessment of tinnitus- and hearing-related sequelae of trauma is recommended both for the improvement of clinical care and for a deeper understanding of the various pathophysiological mechanisms of trauma-associated tinnitus.


Assuntos
Zumbido/etiologia , Barotrauma/complicações , Traumatismos por Explosões/complicações , Lesões Encefálicas/complicações , Lesões das Artérias Carótidas/complicações , Fístula Carótido-Cavernosa/complicações , Ossículos da Orelha/lesões , Orelha Interna/lesões , Fístula/complicações , Humanos , Doenças do Labirinto/complicações , Lesões do Pescoço/complicações , Ruído/efeitos adversos , Fraturas Cranianas/complicações , Transtornos de Estresse Pós-Traumáticos/complicações , Osso Temporal/lesões
7.
Neural Plast ; 2014: 436146, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24967106

RESUMO

Subjective tinnitus is characterized by the conscious perception of a phantom sound which is usually more prominent under silence. Resting state recordings without any auditory stimulation demonstrated a decrease of cortical alpha activity in temporal areas of subjects with an ongoing tinnitus perception. This is often interpreted as an indicator for enhanced excitability of the auditory cortex in tinnitus. In this study we want to further investigate this effect by analysing the moment-to-moment variability of the alpha activity in temporal areas. Magnetoencephalographic resting state recordings of 21 tinnitus subjects and 21 healthy controls were analysed with respect to the mean and the variability of spectral power in the alpha frequency band over temporal areas. A significant decrease of auditory alpha activity was detected for the low alpha frequency band (8-10 Hz) but not for the upper alpha band (10-12 Hz). Furthermore, we found a significant decrease of alpha variability for the tinnitus group. This result was significant for the lower alpha frequency range and not significant for the upper alpha frequencies. Tinnitus subjects with a longer history of tinnitus showed less variability of their auditory alpha activity which might be an indicator for reduced adaptability of the auditory cortex in chronic tinnitus.


Assuntos
Ritmo alfa/fisiologia , Zumbido/fisiopatologia , Estimulação Acústica , Adulto , Idoso , Algoritmos , Doença Crônica , Interpretação Estatística de Dados , Potenciais Evocados Auditivos/fisiologia , Feminino , Humanos , Magnetoencefalografia , Masculino , Pessoa de Meia-Idade , Plasticidade Neuronal/fisiologia , Adulto Jovem
8.
Brain Topogr ; 26(3): 501-10, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23229756

RESUMO

Low-frequency repetitive transcranial magnetic stimulation (rTMS) of the auditory cortex has been shown to significantly reduce tinnitus severity in some patients. There is growing evidence that a neural network of both auditory and non-auditory cortical areas is involved in the pathophysiology of chronic subjective tinnitus. Targeting several core regions of this network by rTMS might constitute a promising strategy to enhance treatment effects. This study intends to test the effects of a multisite rTMS protocol on tinnitus severity. 45 patients with chronic tinnitus were treated with multisite stimulation (left dorsolateral prefrontal, 2,000 stimuli, 20 Hz; left temporoparietal, 1,000 stimuli, 1 Hz; right temporoparietal, 1,000 stimuli, 1 Hz). Results were compared with a historical control group consisting of 29 patients who received left temporal stimulation (2,000 stimuli, 1 Hz). Both groups were treated on ten consecutive working days. Tinnitus severity was assessed at three time points: at baseline, after the last treatment session (day 12) and after a follow-up period of 90 days. A change of tinnitus severity over time was tested using repeated measures ANOVA with the between-subjects factor treatment group. Both groups improved similarly from baseline to day 12. However, there was a difference on day 90: the multisite stimulation group showed an overall improvement whereas patients receiving temporal stimulation returned to their baseline level of tinnitus severity. These pilot data suggest that multisite rTMS is superior to temporal rTMS and represents a promising strategy for enhancing treatment effects of rTMS in tinnitus. Future studies should explore this new protocol with respect to clinical and neurobiological effects in more detail.


Assuntos
Córtex Cerebral/patologia , Zumbido/patologia , Zumbido/terapia , Estimulação Magnética Transcraniana/métodos , Adulto , Idoso , Análise de Variância , Antidepressivos/uso terapêutico , Biofísica , Córtex Cerebral/fisiologia , Distribuição de Qui-Quadrado , Doença Crônica , Feminino , Lateralidade Funcional/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Lobo Temporal/fisiologia
9.
Artigo em Inglês | MEDLINE | ID: mdl-36901154

RESUMO

The risk for suicide in patients with cancer is higher compared to the general population. However, little is known about patients with lung cancer specifically. We therefore implemented a systematic review and random-effects meta-analysis of retrospective cohort studies on suicide in patients with lung cancer. We searched a high number of common databases up to 02/2021. For the systematic review, a total of 23 studies was included. To exclude bias due to patient sample overlap, the meta-analysis was performed on 12 studies. The pooled standardized mortality ratio (SMR) for suicide was 2.95 (95% Confidence Interval (CI) = 2.42-3.60) for patients with lung cancer as compared to the general population. Subgroups with a pronouncedly higher risk for suicide compared to the general population were found for patients living in the USA (SMR = 4.17, 95% CI = 3.88-4.48), with tumors of late stage (SMR = 4.68, 95% CI = 1.28-17.14), and within one year after diagnosis (SMR = 5.00, 95% CI = 4.11-6.08). An increased risk for suicide was found in patients with lung cancer, with subgroups at particular risk. Patients at increased risk should be monitored more closely for suicidality and should receive specialized psycho-oncological and psychiatric care. Further studies should clarify the role of smoking and depressive symptoms on suicidality among lung cancer patients.


Assuntos
Neoplasias Pulmonares , Suicídio , Humanos , Estudos Retrospectivos , Suicídio/psicologia , Ideação Suicida
11.
BMC Complement Altern Med ; 12: 235, 2012 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-23186556

RESUMO

BACKGROUND: Tinnitus, the perception of sound in absence of an external acoustic source, impairs the quality of life in 2% of the population. Since in most cases causal treatment is not possible, the majority of therapeutic attempts aim at developing and strengthening individual coping and habituation strategies. Therapeutic interventions that incorporate training in mindfulness meditation have become increasingly popular in the treatment of stress-related disorders. Here we conducted a randomized, controlled clinical study to investigate the efficacy of a specific mindfulness- and body-psychotherapy based program in patients suffering from chronic tinnitus. METHODS: Thirty-six patients were enrolled in this pilot study. The treatment was specifically developed for tinnitus patients and is based on mindfulness and body psychotherapy. Treatment was performed as group therapy at two training weekends that were separated by an interval of 7 weeks (eleven hours/weekend) and in four further two-hour sessions (week 2, 9, 18 and 22). Patients were randomized to receive treatment either immediately or after waiting time, which served as a control condition. The primary study outcome was the change in tinnitus complaints as measured by the German Version of the Tinnitus Questionnaire (TQ). RESULTS: ANOVA testing for the primary outcome showed a significant interaction effect time by group (F = 7.4; df = 1,33; p = 0.010). Post hoc t-tests indicated an amelioration of TQ scores from baseline to week 9 in both groups (intervention group: t = 6.2; df = 17; p < 0.001; control group: t = 2.5; df = 16; p = 0.023), but the intervention group improved more than the control group. Groups differed at week 7 and 9, but not at week 24 as far as the TQ score was concerned. CONCLUSIONS: Our results suggest that this mindfulness- and body-psychotherapy-based approach is feasible in the treatment of tinnitus and merits further evaluation in clinical studies with larger sample sizes.The study is registered with clinicaltrials.gov (NCT01540357).


Assuntos
Meditação/métodos , Psicoterapia/métodos , Estresse Psicológico/terapia , Zumbido/terapia , Adaptação Psicológica , Adulto , Idoso , Análise de Variância , Doença Crônica , Feminino , Habituação Psicofisiológica , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Psicoterapia de Grupo , Estresse Psicológico/etiologia , Inquéritos e Questionários , Zumbido/psicologia , Resultado do Tratamento
12.
Nat Med ; 28(4): 852-859, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35347279

RESUMO

Despite substantial progress in cancer therapy in recent decades, patients with cancer remain at high suicide risk. Data from individual studies have not been comprehensively quantified and specific risk factors are ill-defined. We assessed suicide mortality risk according to cancer prognosis, stage, time since diagnosis, gender, ethnicity, marital status, year of recruitment and geographic region. We searched EMBASE, MEDLINE, PsycINFO, Web of Science, CINAHL and Google Scholar for relevant articles up to February 2021. We used a random effects model, performed meta-regression meta-analysis and assessed heterogeneity and publication bias using I², funnel plots and Egger's and Begg's tests. We performed a systematic review including 62 studies and 46,952,813 patients. To avoid patient sample overlap, the meta-analysis was performed on 28 studies, involving 22,407,690 patients with cancer. Suicide mortality was significantly increased compared with the general population (standardized mortality ratio = 1.85, 95% confidence interval = 1.55-2.20). Risk was strongly related to cancer prognosis, cancer stage, time since diagnosis and geographic region. Patients with cancer, particularly those with specific risk factors, should be closely monitored for suicidality and need specialized care to reduce short- and long-term risks of suicide.


Assuntos
Neoplasias , Suicídio , Humanos , Fatores de Risco
13.
World J Biol Psychiatry ; 23(5): 327-348, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34668449

RESUMO

INTRODUCTION: Non-invasive brain stimulation techniques such as repetitive transcranial magnetic stimulation (rTMS) offer a promising alternative to psychotherapeutic and pharmacological treatments for depression. This paper aims to present a practical guide for its clinical implementation based on evidence from the literature as well as on the experience of a group of leading German experts in the field. METHODS: The current evidence base for the use of rTMS in depression was examined via review of the literature. From the evidence and from clinical experience, recommendations for the use of rTMS in clinical practice were derived. All members of the of the German Society for Brain Stimulation in Psychiatry and all members of the sections Clinical Brain Stimulation and Experimental Brain Stimulation of the German Society for Psychiatry, Psychotherapy, Psychosomatics and Mental Health were invited to participate in a poll on whether they consent with the recommendations. FINDINGS: Among rTMS experts, a high consensus rate could be identified for clinical practice concerning the setting and the technical parameters of rTMS treatment in depression, indications and contra-indications, the relation of rTMS to other antidepressive treatment modalities and the frequency and management of side effects.


Assuntos
Depressão , Estimulação Magnética Transcraniana , Humanos , Estimulação Magnética Transcraniana/métodos , Consenso , Antidepressivos/uso terapêutico
14.
Prog Brain Res ; 263: 95-108, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34243893

RESUMO

BACKGROUND: Transcranial random noise stimulation (tRNS) is a non-invasive brain stimulation technique which uses electrical alternating currents applied at random frequencies. Besides the ability to alter cortical excitability, past research demonstrated that high-frequency tRNS over the auditory cortex can modulate both spontaneous and auditory evoked oscillatory brain activity. OBJECTIVES: The aim of the present study was to examine the effects of high- and low-frequency auditory tRNS on EEG power and evoked activity. METHODS: Low-frequency (0.1-100Hz), high-frequency (100-640Hz) and sham tRNS were administered for a stimulation over the auditory cortex in 22 healthy subjects. Before and after tRNS stimulation auditory steady state responses (ASSR) of 20 and 40Hz stimuli as well as oscillatory brain activity were recorded with electroencephalography (EEG). RESULTS: Stimulation of both verum tRNS protocols revealed no significant changes either in ASSR or in resting state EEG activity. Unexpectedly, sham tRNS resulted in a significant decrease in 20Hz ASSR and an increase in the alpha frequency band (8-12.5Hz). CONCLUSION: We were not able to replicate previous findings of a modulation of resting state EEG activity and ASSR by tRNS.


Assuntos
Córtex Auditivo , Estimulação Transcraniana por Corrente Contínua , Encéfalo , Eletroencefalografia , Fenômenos Eletrofisiológicos , Humanos
15.
Prog Brain Res ; 262: 287-307, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33931185

RESUMO

The current study examines two different protocols of repetitive transcranial magnetic stimulation (rTMS) targeting three key hubs of cortical tinnitus networks. Patients chose whether they preferred to undergo rTMS treatment for 10 or 20 sessions and were randomized to the different rTMS protocols thereafter. Ninety patients were enrolled in the study with a total dropout rate of 10%. Both rTMS protocols were well tolerated by the patients without any serious adverse events. Overall treatment effects were small both for 2 weeks and 4 weeks of treatment. There was no significant interaction effect between measurement time point and treatment group for neither of the outcome measures nor any differences regarding the applied treatment regimens. The effects of this study contradict former observations suggesting multisite rTMS protocols as promising neuromodulatory strategies. This lack of effect could not be enhanced by increasing the number of treatment sessions in our study.


Assuntos
Zumbido , Estimulação Magnética Transcraniana , Duração da Terapia , Humanos , Zumbido/terapia , Resultado do Tratamento
16.
Prog Brain Res ; 260: 355-366, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33637227

RESUMO

Tinnitus is defined as the perception of noise without an external acoustic stimulus. Due to the heterogeneity of tinnitus, no treatment has proven equally beneficial to every single of these patients. Previous studies have shown that trigeminal input can interfere with the perception of tinnitus. Therefore, we aimed to explore the therapeutic potential of lidocaine injections in trigeminal structures. We conducted a pilot study with 19 participants to explore feasibility and tolerability of this approach. The intervention consisted of three injections of lidocaine in the anatomical area of the trigeminal ganglion and the ganglion oticum via an oral approach corresponding to the affected side of tinnitus. We performed an assessment that included the Mini-TQ, CGII, and numeric rating scales of tinnitus loudness and severity at different time points over a follow-up period of 12 weeks. In addition to changes of subjective tinnitus complaints, potential adverse events were documented. Patients were treated at the Centre of Otorhinolaryngology in Traunstein, Germany, and data were analyzed at the University of Regensburg, Germany. We did not observe any relevant side effects. There was a significant reduction of tinnitus distress (Mini-TQ, Tinnitus severity) and loudness (measured subjectively) over time. Our pilot data suggests that lidocaine injections targeting trigeminal structures may be able to reduce tinnitus complaints. Future studies should investigate the effects of lidocaine injections in placebo-controlled trials in an extended sample size to further explore the potential benefits of this therapeutic approach on tinnitus.


Assuntos
Zumbido , Alemanha , Humanos , Lidocaína , Projetos Piloto , Zumbido/tratamento farmacológico , Resultado do Tratamento
17.
J Psychiatr Res ; 132: 116-122, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33086145

RESUMO

BACKGROUND: Depressive disorders are linked to dysfunction in prefrontal cortical areas. Hence, non-invasive neurostimulation of the prefrontal cortex has demonstrated antidepressant efficacy. In the present study, we investigated the efficacy of high frequency transcranial random noise stimulation (hf-tRNS) as an add-on treatment for depression in a sham-controlled randomized trial. METHODS: Forty in-patients with depression were randomized and treated with real or sham hf-tRNS (100-650 Hz) with 0 mA offset. The electrodes were mounted over the left and right dorsolateral prefrontal cortex. The Hamilton Depression Rating Scale (primary outcome), the Major Depression Inventory, the Clinical Global Impression scale and the Global Assessment of Functioning scale were used for assessment at baseline, after 3 weeks of intervention (end of treatment), and 9 weeks after intervention. Safety parameters included cognitive functioning and reported side-effects. RESULTS: Comparison of real and sham treatment at the planned interim analysis showed an amelioration of symptoms in both groups for all outcomes with numeric but not statistically significant superiority of the sham arm for the primary outcome. Thus, the study was terminated prematurely after an interim analysis. There were no systematic differences with respect to safety parameters. LIMITATIONS: The negative finding might be related to the specific stimulation parameters used in this study. CONCLUSIONS: Our study suggests that prefrontal hf-tRNS is safe but not effective as an add-on treatment of depression. The challenge for future studies employing transcranial electric stimulation remains to identify effective stimulation parameters for the treatment of depression.


Assuntos
Transtorno Depressivo Maior , Estimulação Transcraniana por Corrente Contínua , Depressão/terapia , Transtorno Depressivo Maior/terapia , Método Duplo-Cego , Humanos , Córtex Pré-Frontal , Estimulação Magnética Transcraniana , Resultado do Tratamento
18.
Prog Brain Res ; 260: 1-25, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33637213

RESUMO

As for hypertension, chronic pain, epilepsy and other disorders with particular symptoms, a commonly accepted and unambiguous definition provides a common ground for researchers and clinicians to study and treat the problem. The WHO's ICD11 definition only mentions tinnitus as a nonspecific symptom of a hearing disorder, but not as a clinical entity in its own right, and the American Psychiatric Association's DSM-V doesn't mention tinnitus at all. Here we propose that the tinnitus without and with associated suffering should be differentiated by distinct terms: "Tinnitus" for the former and "Tinnitus Disorder" for the latter. The proposed definition then becomes "Tinnitus is the conscious awareness of a tonal or composite noise for which there is no identifiable corresponding external acoustic source, which becomes Tinnitus Disorder "when associated with emotional distress, cognitive dysfunction, and/or autonomic arousal, leading to behavioural changes and functional disability.". In other words "Tinnitus" describes the auditory or sensory component, whereas "Tinnitus Disorder" reflects the auditory component and the associated suffering. Whereas acute tinnitus may be a symptom secondary to a trauma or disease, chronic tinnitus may be considered a primary disorder in its own right. If adopted, this will advance the recognition of tinnitus disorder as a primary health condition in its own right. The capacity to measure the incidence, prevalence, and impact will help in identification of human, financial, and educational needs required to address acute tinnitus as a symptom but chronic tinnitus as a disorder.


Assuntos
Zumbido , Nível de Alerta , Estado de Consciência , Humanos , Zumbido/complicações
19.
Sci Rep ; 10(1): 1644, 2020 02 03.
Artigo em Inglês | MEDLINE | ID: mdl-32015398

RESUMO

The use of the double-cone (DC) coil in transcranial magnetic stimulation (TMS) is promoted with the notion that the DC coil enables stimulation of deeper brain areas in contrast to conventional figure-of-8 (Fo8) coils. However, systematic comparisons of these two coil types with respect to the spatial distribution of the magnetic field output and also to the induced activity in superficial and deeper brain areas are limited. Resting motor thresholds of the left and right first dorsal interosseous (FDI) and tibialis anterior (TA) were determined with the DC and the Fo8 coil in 17 healthy subjects. Coils were orientated over the corresponding motor area in an angle of 45 degrees for the hand area with the handle pointing in posterior direction and in medio-lateral direction for the leg area. Physical measurements were done with an automatic gantry table using a Gaussmeter. Resting motor threshold was higher for the leg area in contrast to the hand area and for the Fo8 in contrast to the DC coil. Muscle by coil interaction was also significant providing higher differences between leg and hand area for the Fo8 (about 27%) in contrast to the DC coil (about 15%). Magnetic field strength was higher for the DC coil in contrast to the Fo8 coil. The DC coil produces a higher magnetic field with higher depth of penetration than the figure of eight coil.

20.
Front Psychiatry ; 11: 550, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32595541

RESUMO

The pandemic spread of the corona virus SARS-CoV-2 has even-handedly shattered national and international health systems and economies almost in an instant. As numbers of infections and COVID-19-related deaths rise from day to day, fears and uncertainties on how to deal with this unknown threat are extremely present both for individuals and societies as a whole. In this manuscript, we aim to exemplarily describe the bullet points concerning (a) the internal risk management, (b) the organizational and structural changes, and (c) the communicational strategies applied in a Psychiatric University Hospital in the Southern part of Germany. The authors are well aware about the fact that almost none of these considerations may be considered as evidence-based at the moment. However, the authors trust that these reflections and experiences may be useful as an orientation for similar risk constellations in other afflicted countries due to the temporal delay of the pandemic course.

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