RESUMEN
OBJECTIVE: The objective of the study is to evaluate how electroconvulsive therapy (ECT) affects treatment-resistant depression, bipolar and schizophrenic patient groups, and suicide attempt histories and to evaluate the relationship between treatment variables and patient outcomes. METHOD: In a retrospective cohort study at the inpatient psychiatry clinic of Çam and Sakura City Hospital between January, 2021, and February, 2023, 103 patients receiving ECT were analyzed. They were categorized into two groups according to indications that suicide risk (n = 76) and resistance to pharmacotherapy (n = 27). RESULTS: The analysis revealed no significant age (p = 0.374) or gender (p = 0.304) differences between groups. However, significant differences emerged in diagnostic distribution (p = 0.027), with the suicide risk group receiving more ECT sessions (13.6 ± 11.2, p = 0.025) and experiencing longer total seizure times (427 ± 325 s, p = 0.023) compared to the treatment-resistant group (8.5 ± 4.7 sessions and 279 ± 115 s, respectively). CONCLUSIONS: ECT's therapeutic application does not differ from demographic variables but is influenced by clinical diagnosis, with suicide risk patients receiving more intensive treatment. These findings highlight the necessity of individualized ECT protocols and suggest that diagnostic considerations are critical in optimizing ECT treatment strategies. Despite its retrospective design, the study underscores the importance of personalized ECT regimens and calls for further prospective research to validate these findings.
OBJETIVO: Evaluar cómo la terapia electroconvulsiva afecta a grupos de pacientes con depresión resistente al tratamiento, trastorno bipolar, esquizofrenia y antecedentes de intentos suicidio, y evaluar la relación entre variables de tratamiento y resultados. MÉTODO: En una cohorte retrospectiva en la clínica de psiquiatría para pacientes internados del Çam and Sakura City Hospital, entre el 01/2021 y el 03/2023, se analizaron 103 pacientes que recibieron terapia electroconvulsiva. Estos se clasificaron en dos grupos según los indicios de riesgo de suicidio (n = 76) y de resistencia a la farmacoterapia (n = 27). RESULTADOS: El análisis no mostró diferencias significativas en cuanto a edad (p = 0.374) y sexo (p = 0.304) entre los grupos. Sin embargo, hubo diferencias significativas en la distribución diagnóstica (p = 0.027), con el grupo de riesgo de suicidio recibiendo más sesiones de terapia electroconvulsiva (13.6 ± 11.2; p = 0.025) y experimentando tiempos totales de convulsión más largos (427 ± 325 segundos; p = 0.023) en comparación con el grupo resistente al tratamiento (8.5 ± 4.7 sesiones y 279 ± 115 segundos, respectivamente). CONCLUSIONES: La aplicación terapéutica de la terapia electroconvulsiva no difiere según las variables demográficas, pero sí se ve influenciada por el diagnóstico clínico, recibiendo los pacientes de riesgo de suicidio un tratamiento más intensivo.
Asunto(s)
Trastorno Bipolar , Trastorno Depresivo Resistente al Tratamiento , Terapia Electroconvulsiva , Esquizofrenia , Intento de Suicidio , Humanos , Estudios Retrospectivos , Masculino , Femenino , Persona de Mediana Edad , Esquizofrenia/terapia , Adulto , Trastorno Depresivo Resistente al Tratamiento/terapia , Trastorno Bipolar/terapia , Anciano , Resultado del TratamientoAsunto(s)
Dexmedetomidina , Terapia Electroconvulsiva , Hipnóticos y Sedantes , Agitación Psicomotora , Adulto , Humanos , Masculino , Trastorno Bipolar/terapia , Terapia Combinada , Dexmedetomidina/administración & dosificación , Terapia Electroconvulsiva/métodos , Hipnóticos y Sedantes/administración & dosificación , Infusiones Intravenosas , Manía , Agitación Psicomotora/etiologíaRESUMEN
BACKGROUND: Yoga can be used as a complementary intervention to conventional treatments, whether pharmacological or non-pharmacological. Sustained practice of yoga can generate a series of benefits for individuals' quality of life and improve their physical fitness. OBJECTIVE: To investigate the potential effects of yoga as an adjunct intervention in conditions involving impulse control issues, such as attention deficit hyperactivity disorder (ADHD), borderline personality disorder, bipolar affective disorder, and substance use disorders. METHODS: We performed a systematic review of placebo-controlled, randomized trials of yoga in patients with impulsivity. PubMed, Web of Science, and Science Direct databases were searched for trials published up to January, 2023. Data were extracted from published reports and quality assessment was performed per Cochrane recommendations. RESULTS: Out of 277 database results, 6 RCT were included in this systematic review. To assess the level of attention and impulsiveness, the following scales were analyzed: Barratt Impulsiveness, UPPS-P Impulsive Behavior scale, Conners' Continuous Performance Test IIª and Conners' Parent Rating Scale-Revised: Long. CONCLUSIONS: Yoga didn't have a significant improvement in impulsivity when compared to placebo. There are many tools to assess impulsivity, but they mean different concepts and domains consisting in a weakness on comparison of yoga effects. PROSPERO REGISTRATION: CRD42023389088.
Asunto(s)
Conducta Impulsiva , Yoga , Yoga/psicología , Humanos , Ensayos Clínicos Controlados Aleatorios como Asunto , Trastornos Mentales/terapia , Trastornos Mentales/psicología , Trastorno por Déficit de Atención con Hiperactividad/terapia , Trastorno por Déficit de Atención con Hiperactividad/psicología , Trastorno Bipolar/terapia , Trastorno Bipolar/psicología , Trastorno de Personalidad Limítrofe/terapia , Trastorno de Personalidad Limítrofe/psicología , Trastornos Relacionados con Sustancias/terapia , Trastornos Relacionados con Sustancias/psicologíaRESUMEN
Cultural Concepts of Distress (CCDs) are culturally constructed diagnostic categories that exist within a specific society or culture. While several studies have assessed CCDs around the world, few studies have examined them in Haiti. This qualitative study examines manifestations of anxiety and depression via "sent spirits" in the form of maladi nanm ("Soul disorder") and maladi zonbi ("Zombie disorder"), and bipolar disorder in the form of maladi lalin ("Moon disorder"). Examples of CCDs were recorded as part of a study which interviewed 96 outpatients at the first mental health center in northern Haiti. Using qualitative methods, the authors identified three specific CCDs as reported by mental health patients. Maladi nanm and maladi zonbi represent alternative explanatory models of anxiety and depression in which the sufferer views mental illness as stemming from a sent spirit, or spirit which is intentionally sent supernaturally with the intent to cause harm. Maladi lalin is experienced by patients with bipolar disorder who associate cycles of mania and depression as in-sync with the phases of the moon. Understanding culture-bound forms of mental distress in settings such as Haiti is essential to developing accurate psychometrics for measuring mental health, as well as ensuring culturally appropriate and effective diagnosis and treatment.
Asunto(s)
Trastorno Bipolar , Salud Mental , Humanos , Haití , Trastorno Bipolar/terapia , Trastornos de Ansiedad , AnsiedadRESUMEN
Even in well-delivered treatments, a significant proportion of patients with severe diagnoses will not achieve sustained remission. For example, research demonstrates that in Bipolar II disorder, while psychological interventions combined with pharmacotherapy yield much better results than pharmacotherapy alone, relapse rates remain very high. In this article, we show the successful treatment of Mrs. C., who was diagnosed with Bipolar II disorder and fell into the non-responders. The treatment integrated a novel approach grounded on a cognitive-behavioral theory with a systemic perspective. The psychotherapist, the psychiatrist, and a family therapist composed the teamwork and delivered the treatment in three phases. In the first phase, the psychotherapist conjointly with the psychiatrist aimed at reducing symptoms. In the second phase, the psychotherapist and the family therapist addressed the dysfunctional relationship patterns that negatively reinforced emotional dysregulation. Finally, in the third phase, the aim was to consolidate the achievements, changes, and good outcomes.
Asunto(s)
Trastorno Bipolar , Humanos , Trastorno Bipolar/terapia , Salud Mental , Resultado del TratamientoRESUMEN
The mechanisms of action (MA) of electroconvulsive therapy (ECT) in affective disorders are poorly understood. We synthesized and discussed the evidence provided by primary studies and systematic reviews in humans. There are differences in the methylation of candidate genes involved in the response to ECT. Functioning of the hippocampal serotonin receptor 5-HT1B is associated with the response in patients with major depressive disorder (PMDD), while the striatal dopamine transporter would participate in the response of PMDD and in patients with bipolar disorders (BD). The only neurotrophic factor associated with ECT response was vascular endothelial growth factor. In BD, some oxidative stress metabolites had a clinical correlation, while tryptophan metabolism showed a clinical association in BD and PMDD. Furthermore, in PMDD, some neurodegeneration markers were implicated in the MA of ECT. There were no other biological dimensions associated with BD. In PMDD, multiple inflammatory mediators were associated with the clinical response (natural killer cells, tumor necrosis and growth factors, and interleukins 1, 4, 6, 10,1β). Likewise, some structures and circuits consistently involved at the morphological and functional level are the default mode network, cognitive control networks, frontal, temporal, cingulate, occipital and temporal cortices, frontal, temporal, precentral, fusiform and left angular gyri, hippocampus, thalamus and amygdala. Investigations are mostly focused on PMDD, are observational, and their samples limited, but they show relatively consistent results with clinical significance.
Asunto(s)
Humanos , Trastorno Bipolar/terapia , Trastorno Depresivo Mayor/terapia , Terapia Electroconvulsiva/métodos , Imagen por Resonancia Magnética , Factor A de Crecimiento Endotelial VascularRESUMEN
BACKGROUND: Serious games are play-based technologies designed to teach users a wide range of concepts and skills applicable in the non-virtual environment. OBJECTIVES: This paper describes the process of developing a serious game for people with bipolar disorder to promote symptom recognition and the safe use of medications. METHODS: This study was based on the User-Centered Design methodological model and the theoretical framework for Participatory Design. We conducted interviews with health professionals and discussion circles with people with bipolar disorder and their family members in order to identify the learning needs related to symptom recognition and safe medication use. A categorical analysis was completed of the participants' reports and the scientific literature and formed the basis for the design of Mundo de Pólus. RESULTS: The game development process had three pillars (detailed in this manuscript): missions, simulation, and journal. The serious game focuses on the users' perceptions about their experience with the disorder, their interpersonal relationships, coping strategies, use of medications, and non-pharmacological treatments. CONCLUSIONS: These scientific and technological outcomes are useful to promote literacy and safety in medication therapy for people with bipolar disorder.
Asunto(s)
Trastorno Bipolar , Humanos , Trastorno Bipolar/terapia , Adaptación Psicológica , Relaciones Interpersonales , FamiliaRESUMEN
OBJECTIVES: Studies have suggested Brain-Derived Neurotrophic Factors (BDNF) increase after electroconvulsive therapy (ECT) although they were methodologically limited and enrolled small sample sizes. We aimed at updating a systematic review and meta-analysis to explore BDNF changes after ECT for the treatment of depression. METHODS: PubMed, PsycInfo, Embase and Global health were searched (March, 2021). Clinical trials that measured BDNF in the blood before and after ECT in adults (≥ 18 years old) with depression (major depressive disorder or bipolar disorder) were eligible. Data were pooled through random-effects meta-analyses. RESULTS: Twenty-eight studies involving 778 participants were included. Meta-analysis showed a significant increase in BDNF levels after ECT (Hedges' g = 0.28; 95% CI: 0.10, 0.46) while there was evidence of significant heterogeneity (I2 = 67.64%) but not publication bias/small-study effect. Subgroup analyses and meta-regressions were underpowered to detect significant differences. Meta-analysis of depression severity scores demonstrated a considerable larger treatment effect in reducing depressive symptoms after ECT (Hedge's g = -3.72 95% CI: -4.23, -3.21). CONCLUSION: This updated review showed that BDNF blood levels increased after ECT treatment. However, there was still evidence of substantial heterogeneity and there were limited sample sizes to investigate factors driving the variability of effects across studies. Importantly, the increase in BDNF levels was substantially smaller than the observed in depressive symptomatology, which could be indicative that the former was independent than the latter. Additional studies with larger sample sizes are currently required.
Asunto(s)
Trastorno Bipolar , Trastorno Depresivo Mayor , Terapia Electroconvulsiva , Adulto , Humanos , Adolescente , Trastornos del Humor/terapia , Trastorno Depresivo Mayor/terapia , Factor Neurotrófico Derivado del Encéfalo , Trastorno Bipolar/terapiaRESUMEN
Alcohol consumption has a key role in more than 200 diseases and health injuries, being an important factor for social and public health costs. Studies with clinical populations show an association between alcohol use disorders (AUD) and bipolar disorder. In this meta-analysis we included studies, reports, or summaries identified in Google Scholar, Lilacs, Medline, and MedCaribe that reported original data published up to 31 January 2023. We included cross-sectional and longitudinal observational studies that investigated the prevalence of AUD in patients with bipolar disorder. We calculated the prevalence rates and conducted a meta-analysis using a random effects model. The meta-analysis included 20 unique studies conducted in 12 countries, with a total sample of 32,886 individuals with bipolar disorder, comprising 17,923 women and 13,963 men, all aged 18 years or older. The prevalence of AUD in individuals with bipolar disorder was found to be 29.12%, while the prevalence of Alcohol Dependence (AD) was 15.87% and the prevalence of Alcohol Abuse (AA) was 18.74%. The high prevalence of AUD individuals with bipolar disorder is important because it highlights the need for targeted interventions to prevent and address comorbid conditions, which may improve treatment outcomes, reduce harm, and promote public health.
Asunto(s)
Alcoholismo , Trastorno Bipolar , Masculino , Humanos , Femenino , Trastorno Bipolar/epidemiología , Trastorno Bipolar/terapia , Alcoholismo/epidemiología , Estudios Transversales , Comorbilidad , Consumo de Bebidas AlcohólicasRESUMEN
The mechanisms of action (MA) of electroconvulsive therapy (ECT) in affective disorders are poorly understood. We synthesized and discussed the evidence provided by primary studies and systematic reviews in humans. There are differences in the methylation of candidate genes involved in the response to ECT. Functioning of the hippocampal serotonin receptor 5-HT1B is associated with the response in patients with major depressive disorder (PMDD), while the striatal dopamine transporter would participate in the response of PMDD and in patients with bipolar disorders (BD). The only neurotrophic factor associated with ECT response was vascular endothelial growth factor. In BD, some oxidative stress metabolites had a clinical correlation, while tryptophan metabolism showed a clinical association in BD and PMDD. Furthermore, in PMDD, some neurodegeneration markers were implicated in the MA of ECT. There were no other biological dimensions associated with BD. In PMDD, multiple inflammatory mediators were associated with the clinical response (natural killer cells, tumor necrosis and growth factors, and interleukins 1, 4, 6, 10,1ß). Likewise, some structures and circuits consistently involved at the morphological and functional level are the default mode network, cognitive control networks, frontal, temporal, cingulate, occipital and temporal cortices, frontal, temporal, precentral, fusiform and left angular gyri, hippocampus, thalamus and amygdala. Investigations are mostly focused on PMDD, are observational, and their samples limited, but they show relatively consistent results with clinical significance.
Asunto(s)
Trastorno Bipolar , Trastorno Depresivo Mayor , Terapia Electroconvulsiva , Humanos , Trastorno Depresivo Mayor/terapia , Factor A de Crecimiento Endotelial Vascular , Terapia Electroconvulsiva/métodos , Trastorno Bipolar/terapia , Imagen por Resonancia MagnéticaRESUMEN
Familiares são importantes cuidadores de pessoas com transtorno bipolar (TB), podendo estar vulneráveis ao assumir esse cuidado e buscarem algum tipo de apoio, como o consumo de psicofármacos. O objetivo deste estudo foi compreender o significado que os familiares cuidadores atribuem para o próprio consumo do psicofármaco. Trata-se de estudo qualitativo com 32 participantes que utilizou o Interacionismo Simbólico (referencial teórico) e a Teoria Fundamentada nos Dados (referencial metodológico). Os dados foram analisados em três etapas: codificação aberta, axial e seletiva. O familiar é impactado por ter que assumir o cuidado e precisa buscar alternativas para se adaptar às dificuldades e efeitos disso. Assim, ele busca o consumo de psicofármacos, mas tal consumo é visto e compreendido de maneiras diferentes ao longo do processo de utilização. Os resultados desta pesquisa oferecem maior compreensão do fenômeno estudado e subsídios para a melhoria da assistência para essa clientela
Family members are essential caregivers of people with bipolar disorder (BD) and may be vulnerable upon assuming this care, seeking some support such as the use of psychotropic drugs. The objective of this study was to understand the meaning that family caregivers attribute to their psychotropics use. This is a qualitative study with 32 participants that used Symbolic Interactionism (theorical reference) and the Grounded Theory (methodological reference). Data were analyzed in three steps: open, axial and selective coding. The family member is impacted by having to assume the care and needs to look for alternatives to adapt to the difficulties and effects of this care. Hence, they seek the use of psychotropics, but this consumption is seen and understood differently throughout the utilization process. This study offers a better understanding of the studied phenomenon and subsidies to improve the assistance to this clientele.
La familia es importante cuidadora de personas con trastorno bipolar (TB) y por asumir ese cuidado se quedan vulnerables a la búsqueda de apoyo por medio del consumo de psicofármaco. Por ese motivo, el objetivo de este estudio fue el de comprender el significado que los familiares cuidadores atribuyen al proprio consumo de psicofármaco. El estudio ocurrió por análisis cualitativo de 32 participantes y utilizó el Interaccionismo Simbólico (referencial teórico) y la Teoría Fundamentada en Datos (referencial metodológico). El análisis de datos ocurrió en tres etapas: la codificación abierta, axial y selectiva. El familiar es impactado por asumir el cuidado y necesita buscar alternativas para adaptarse a las dificultades y efectos de eso. Por lo tanto, se busca el consumo de psicofármacos, pero dicho consumo es visto y comprendido de diferentes maneras a lo largo del proceso de utilización. Los resultados de esta pesquisa ofrecen una comprensión más grande del fenómeno estudiado y ofrecen también subsidio para perfeccionamiento de la asistencia a eses clientes.
Asunto(s)
Humanos , Percepción , Psicotrópicos/uso terapéutico , Trastorno Bipolar/terapia , CuidadoresRESUMEN
Importance: Transcranial direct current stimulation (tDCS) may improve symptoms of inattention in adults with attention-deficit/hyperactivity disorder (ADHD). However, previous trials are characterized by small sample sizes, heterogeneous methodologies, and short treatment periods using clinic-based tDCS. Objective: To determine the efficacy and safety of home-based tDCS in treating inattention symptoms in adult patients with ADHD. Design, Setting, and Participants: Randomized, double-blind, parallel, sham-controlled clinical trial (tDCS for the Treatment of Inattention Symptoms in Adult Patients With ADHD [TUNED]), conducted from July 2019 through July 2021 in a single-center outpatient academic setting. Of 277 potential participants screened by phone, 150 were assessed for eligibility on site, and 64 were included. Participants were adults with ADHD, inattentive or combined subtype. Exclusion criteria included current stimulant drug treatment, current moderate to severe symptoms of depression or anxiety, diagnosis of bipolar disorder with a manic or depressive episode in the last year, diagnosis of schizophrenia or another psychotic disorder, and diagnosis of autism spectrum disorder; 55 of participants completed follow-up after 4 weeks. Interventions: Thirty-minute daily sessions of home-based tDCS for 4 weeks, 2 mA anodal-right and cathodal-left prefrontal stimulation with 35-cm2 carbon electrodes. Main Outcomes and Measures: Inattentive scores in the clinician-administered version of the Adult ADHD Self-report Scale version 1.1 (CASRS-I). Results: Included in this trial were 64 participants with ADHD (31 [48%] inattentive presentation and 33 [52%] combined presentation), with a mean (SD) age of 38.3 (9.6) years. Thirty participants (47%) were women and 34 (53%) were men. Fifty-five finished the trial. At week 4, the mean (SD) inattention score, as measured with CASRS-I, was 18.88 (5.79) in the active tDCS group and 23.63 (3.97) in the sham tDCS group. Linear mixed-effects models revealed a statistically significant treatment by time interaction for CASRS-I (ßinteraction = -3.18; 95% CI, -4.60 to -1.75; P < .001), showing decreased symptoms of inattention in the active tDCS group over the 3 assessments compared to the sham tDCS group. Mild adverse events were more frequent in the active tDCS group, particularly skin redness, headache, and scalp burn. Conclusions and Relevance: In this randomized clinical trial, daily treatment with a home-based tDCS device over 4 weeks improved attention in adult patients with ADHD who were not taking stimulant medication. Home-based tDCS could be a nonpharmacological alternative for patients with ADHD. Trial Registration: ClinicalTrials.gov Identifier: NCT04003740.
Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Trastorno del Espectro Autista , Trastorno Bipolar , Estimulación Transcraneal de Corriente Directa , Adulto , Trastorno por Déficit de Atención con Hiperactividad/diagnóstico , Trastorno por Déficit de Atención con Hiperactividad/terapia , Trastorno del Espectro Autista/terapia , Trastorno Bipolar/terapia , Método Doble Ciego , Femenino , Humanos , Masculino , Estimulación Transcraneal de Corriente Directa/métodos , Resultado del TratamientoRESUMEN
OBJECTIVE: This study explores the relationship between patients' self-assessment and physicians' evaluation regarding clinical stability. METHODS: This cross-sectional study was carried out at the general outpatient clinic of the Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ) in a large sample (1,447) of outpatients, of which 67.9% were patients with severe mental disorders (SMD). We collected information using a structured questionnaire developed for this purpose, filled in by the patient's physician. Clinical stability was assessed by means of five psychiatric instability criteria and by the physician's global clinical impression over the six previous months. The patients' self-assessment was based on a question about how they evaluated their health status: stable/better, worse, does not know. For the analyses, patients' self-evaluation was considered as our standard. RESULTS: The sample was composed of 824 (57%) women with an average age of 49 years. The most prevalent diagnoses within the SMD category corresponded to 937 patients, of whom 846 (90.3%) assessed themselves as stable/better. The physicians' evaluations agreed more with patients with bipolar disorders and less with schizophrenics regarding stability. As for patients with depressive disorder, physicians agreed more with them regarding instability. CONCLUSION: The data analysis confirms our hypothesis that the self- -assessment made by patients with SMD was accurate regarding their health condition, and that the self- -assessment made by patients who considered themselves stable agree with the physicians' evaluation.
OBJETIVO: Este estudo explora a relação entre a autoavaliação dos pacientes e a avaliação dos médicos quanto à estabilidade clínica. MÉTODOS: Trata-se de um estudo transversal realizado no ambulatório do Instituto de Psiquiatria da Universidade Federal do Rio de Janeiro (IPUB-UFRJ) em uma ampla amostra de pacientes (1.447), dos quais 67,9% eram portadores de transtornos mentais graves (TMG). Coletamos informações por meio de um questionário estruturado desenvolvido para esse fim, preenchido pelo médico assistente. A estabilidade clínica foi avaliada por meio de cinco critérios de instabilidade psiquiátrica e pela impressão clínica global do médico, nos seis meses anteriores. A autoavaliação dos pacientes baseou-se em uma pergunta sobre como eles avaliavam seu estado de saúde: estável/melhor, pior, não sabe. Para as análises, a autoavaliação dos pacientes foi considerada como nosso padrão. RESULTADOS: A amostra foi composta por 824 (57%) mulheres, com idade média de 49 anos. Os diagnósticos mais prevalentes na categoria TMG corresponderam a 937 pacientes, dos quais 846 (90,3%) se avaliaram como estáveis/melhores. As avaliações dos médicos concordaram mais com pacientes portadores de transtorno bipolar e menos com esquizofrênicos em relação à estabilidade. Quanto aos pacientes com transtorno depressivo, os médicos concordaram mais com eles em relação à instabilidade. CONCLUSÃO: A análise dos dados confirma nossa hipótese de que a autoavaliação feita por pacientes com TMG foi precisa quanto à sua condição de saúde e que a autoavaliação feita por pacientes que se consideravam estáveis concorda com a avaliação dos médicos.
Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Pacientes Ambulatorios/psicología , Trastorno Bipolar/terapia , Autoevaluación Diagnóstica , Trastornos Mentales/terapia , Estudios Transversales , Encuestas y Cuestionarios/normas , Atención Médica , Hospitales PsiquiátricosAsunto(s)
Trastorno Bipolar , Trastorno Bipolar/terapia , Índice de Masa Corporal , Ejercicio Físico , HumanosRESUMEN
BACKGROUND: Bipolar disorder (BD) is a chronic mood disorder characterized by recurrent episodes of mania or hypomania and depression, expressed by changes in energy levels and behavior. However, most of relapse studies use evidence-based approaches with statistical methods. With the advance of the precision medicine this study aims to use machine learning (ML) approaches as a possible predictor in depressive relapses in BD. METHOD: Four accepted and well used ML algorithms (Support Vector Machines, Random Forests, Naïve Bayes, and Multilayer Perceptron) were applied to the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD) dataset in a cohort of 800 patients (507 patients presented depressive relapse and 293 did not), who became euthymic during the study and were followed for one year. RESULTS: The ML algorithms presented reasonable performance in the prediction task, ranging from 61 to 80% in the F-measure. The Random Forest algorithm obtained a higher average of performance (Relapse Group 68%; No Relapse Group 74%). The three most important mood symptoms observed in the relapse visit (Random Forest) were: interest; depression mood and energy. LIMITATIONS: Social and psychological parameters such as marital status, social support system, personality traits, might be an important predictor in depressive relapses, although we did not compute this data in our study. CONCLUSIONS: Our findings indicate that applying precision medicine models by means of machine learning in BD studies could be feasible as a sensible approach to better support medical decision-making in the BD treatment and prevention of future relapses.
Asunto(s)
Trastorno Bipolar , Teorema de Bayes , Trastorno Bipolar/diagnóstico , Trastorno Bipolar/terapia , Trastorno Ciclotímico , Humanos , Aprendizaje Automático , RecurrenciaRESUMEN
Bipolar depression is associated with marked cognitive deficits. Pharmacological treatments for this condition are limited and may aggravate depressive and cognitive symptoms. Therefore, therapeutic interventions that preserve adequate cognitive functioning are necessary. Our previous results demonstrated significant clinical efficacy of transcranial direct current stimulation (tDCS) in the Bipolar Depression Electrical Treatment Trial (BETTER). Here, cognitive outcomes of this study are reported. We randomized 59 patients with bipolar disorder I or II in an acute depressive episode to receive active (12 2 mA, 30-min, anodal-left, cathodal-right prefrontal cortex tDCS sessions) or sham tDCS. Patients were on stable pharmacological regimen for at least 2 weeks. A battery of 12 neuropsychological assessments in five cognitive domains (attention and processing speed, memory, language, inhibitory control, and working memory and executive function) was performed at baseline, after two weeks and at endpoint (week 6). No significant differences between groups over 6 weeks of treatment were observed for any cognitive outcomes. Moreover, no decrease in cognitive performance was observed. Our findings warrant further replication in larger studies. Trial Registration: clinicaltrials.gov Identifier: NCT02152878.
Asunto(s)
Trastorno Bipolar/complicaciones , Trastorno Bipolar/terapia , Cognición , Depresión/complicaciones , Depresión/terapia , Estimulación Transcraneal de Corriente Directa , Adolescente , Adulto , Anciano , Trastorno Bipolar/fisiopatología , Trastorno Bipolar/psicología , Depresión/fisiopatología , Depresión/psicología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Corteza Prefrontal , Resultado del Tratamiento , Adulto JovenRESUMEN
INTRODUCTION: Similar effects in reducing the symptoms of the mood disorder are reported in the literature compared the action of drugs and aerobic exercise sessions, demonstrating the potential of exercise in the control and mood stabilization. Therefore, there are many reasons to believe that the increased cardiorespiratory fitness (VO2max) can be an important means of protection and a reducing potential of physical and mental damage in bipolar disorders (BD). This review will highlight the current pattern of response of exercise on the pathophysiology of BD, relating the possible mechanisms, and hypotheses based on exercises. AREAS COVERED: The mechanism of monoaminergic action and its relationship with exercise, role of physical conditioning and increased VO2Max on neurotrophin release, and new perspectives on long-term exercise will be reviewed. EXPERT OPINION: The adaptations to training, although little explored in the context of BD, can induce the expression of substances that co-regulate several processes related to the pathophysiology of BD. Furthermore, high intensity interval training (HIIT) can also be adjusted to improve the physical fitness and health in patients with BD. Future research is needed to adopt a training strategy that is both time efficient and adequate for the population in question.