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Evidences suggest that inflammation is increased in a subgroup of patients with depression. Moreover, increased peripheral inflammatory markers (cells and proteins) are associated with some, but not all depressive symptoms. On the other hand, similar studies on bipolar disorders mainly focused on blood cytokines. Here, we analysed data from a large (N = 3440), well-characterized cohort of individuals with bipolar disorder using Kendall partial rank correlation, multivariate linear regression, and network analyses to determine whether peripheral blood cell counts are associated with depression severity, its symptoms, and dimensions. Based on the self-reported 16-Item Quick Inventory of Depressive Symptomatology questionnaire scores, we preselected symptom dimensions based on literature and data-driven principal component analysis. We found that the counts of all blood cell types were only marginally associated with depression severity. Conversely, white blood cell count was significantly associated with the sickness dimension and its four components (anhedonia, slowing down, fatigue, and appetite loss). Platelet count was associated with the insomnia/restlessness dimension and its components (initial, middle, late insomnia and restlessness). Principal component analyses corroborated these results. Platelet count was also associated with suicidal ideation. In analyses stratified by sex, the white blood cell count-sickness dimension association remained significant only in men, and the platelet count-insomnia/restlessness dimension association only in women. Without implying causation, these results suggest that peripheral blood cell counts might be associated with different depressive symptoms in individuals with bipolar disorder, and that white blood cells might be implicated in sickness symptoms and platelets in insomnia/agitation and suicidal ideation.
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Transtorno Bipolar , Distúrbios do Início e da Manutenção do Sono , Masculino , Humanos , Feminino , Transtorno Bipolar/diagnóstico , Depressão , Contagem de Plaquetas , Agitação Psicomotora , Ideação Suicida , LeucócitosRESUMO
Introduction: Since the beginning of the health crisis, health care personnel have been confronted with an influx of patients with COVID-19. Given the complexity of the situation, the reorganization of care was done on an emergency basis to ensure careful management to limit the spread of the disease among health care personnel and patients. As patients suffering from psychiatric disorders were not spared, the Ville-Evrard Public Health Establishment set up a strategy to deal with this crisis by setting up a COVID+ unit specialized in the care of patients suffering from mental disorders and infected by the Coronavirus. Patients diagnosed as positive by PCR test were transferred to this unit so that they could benefit from a global management.Aim of the study: The aim of our work was to focus on psychiatric patients (whether they were carriers of the COVID-19 virus or not) on their experiences during the health crisis in the first wave from March to June 2020, during the first containment.Materials and methods: We have developed a semi-structured questionnaire composed of 8 questions, allowing to explore different aspects of the experience of the health crisis. We interviewed 12 patients (six patients affected by COVID-19 and six unaffected patients) with different mental disorders. The patients expressed themselves freely and their answers to the questions were presented question by question and separated according to the two groups. The first question was intended only for patients in the first cluster infected with the Coronavirus and the second question for patients with a family member infected with the virus.Results: For the first question, two patients among the six infected with the Coronavirus, expressed anxiety. For the second question, two patients in the Covid+ group had a family member who had contracted the virus. One patient felt guilty, and one patient was anxious. In the Covid- group, one patient whose spouse had contracted the virus was very worried. For the third question, in the Covid+ group, four of the six patients were compliant with containment, two patients were not. In the Covid- group, four patients experienced containment between home and the hospital, and two patients experienced the entire containment at home. Regarding the fourth question, all patients (in both groups) acknowledged that the health crisis had a significant impact on their lifestyle. In response to the fifth question, all patients in the Covid+ group talked about their stay in the COVID+ unit and its setting. For patients in the Covid- group, the answers were varied mentioning simple means of distraction. For the sixth question, all patients (in both groups) were globally satisfied with their care. Concerning the seventh question, all patients in the Covid+ group thought they had been sufficiently careful without expressing any fear about the risk of contamination. In the Covid- group, the answers were centered on the fear of contracting the virus in the hospital. The responses to the eighth and final question were marked by a glimmer of hope.Conclusion: In the light of this work, the repercussions of this crisis, during the first wave, were generally well experienced by our patients, in the psychiatric environment, with a good awareness of the stakes and the risks incurred but also with a glimmer of hope for a resolution of the situation soon. Finally, most of the psychiatric patients in this sample behaved as respectful citizens during this first wave of confinement.
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INTRODUCTION: Psychiatric disorders are common in peripartum and are associated with adverse outcomes for mother and fetus. Electroconvulsive therapy (ECT) is one of the most effective and safe options to treat severe mental illness, including during the perinatal period. Nevertheless, it remains underutilized during this period, possibly due to negative representations. Research has been carried out on the representations and attitudes of caregivers towards ECT, but the specificities of these attitudes during peripartum have not been explored. OBJECTIVES: We aimed to assess the attitudes towards ECT during the peripartum among psychiatrists, nurses, social workers and psychologists. The primary objective was to compare the score of favorability for ECT during peripartum according to the profession. The secondary objective was to highlight other factors involved in the favorability for ECT in peripartum. METHODS: We investigated mental health professionals' attitudes sending by e-mail an anonymous questionnaire in five hospitals in France. The questionnaire was composed of demographic details, one scale about the attitudes towards ECT (the Questionnaire on Attitudes and Knowledge of ECT (QuAKE)) used in several studies; in this questionnaire, a specific part for perinatal period has been added for our study, both using a Likert scale. The completion time for this online questionnaire was approximately 5 to 7minutes. A score of favorability for ECT in general and in peripartum was established for each participant. These scores represented the percentage of positive responses to favorable items and of negative responses to unfavorable items towards ECT. Comparison of the QuAKE answers with a sample of English caregivers in 2001 has been determined with χ2 tests. A Bonferroni correction was applied due to the large number of tests performed. Factors involved in the favorability for ECT have been studied with Pearson correlation, Kruskall-Wallis and Wilcoxon tests. RESULTS: Two hundred and twenty one professionals (80 psychiatrists, 78 nurses, 19 social workers and 44 psychologists) were included in the study. Their answers to the QuAKE questionnaire were comparable or more favorable to ECT than the English sample answered in 2001. The perinatal part of questionnaire had a good internal consistency (Cronbach coefficient: 0,91). Participants were less favorable to ECT in perinatal period (favorability score: 44.2) than in general (63.6). They more often responded « uncertain ¼ to the perinatal questionnaire (44,9 % against 18.4 % for the ECT in general; W=19931,5; P<0,001). The favorability for ECT in general and during peripartum were statistically associated with profession (psychiatrists were more favorable), specific training and experience in ECT. Gender, perinatal specialization, age, and the number of years in professional service were not associated with favorability for ECT in general and during peripartum in this study. CONCLUSIONS: In this study, we have found that profession, training and experience in ECT are linked to the attitudes towards ECT, including in the perinatal period. It is necessary to inform professionals about the possibility of prescribing ECT in the perinatal period by training them in the specificities of pregnancy.
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Eletroconvulsoterapia , Psiquiatria , Atitude do Pessoal de Saúde , Humanos , Saúde Mental , Inquéritos e QuestionáriosRESUMO
The burden of caregivers of patients with chronic diseases has been the subject of research for several years, but few studies have focused on the suffering of family members from the time of their first hospitalization in psychiatry. The identification of the determinants of this burden would allow us to propose early management aimed at improving the well-being of the patients' family and friends and maximizing intra-family resources.
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Adaptação Psicológica , Sobrecarga do Cuidador , Cuidadores , Doença Crônica , Efeitos Psicossociais da Doença , Família , HumanosRESUMO
BACKGROUND: Women have twice the rate of depression and anxiety disorders as men. Some studies suggest that this could be caused by women's greater sensitivity to negative emotions. Few brain imaging studies have compared the brain activity of men to women during a presentation of emotional stimuli. Our objective was to investigate brain activations in men and women during an emotional task. We hypothesized that the pattern of brain activations would differ by gender and valence of the stimuli. METHODS: We conducted a functional magnetic resonance imaging study in 30 healthy participants (15 men and 15 women). Positive, negative and neutral photographs were presented to the subjects. Participants subjectively rated the valence and intensity of the stimuli. RESULTS: No significant gender-by-category interaction effect was observed for the intensity or valence of the stimuli. We found that, during the presentation of negative photographs, there was a higher activity in women's right fusiform gyrus compared to men's. CONCLUSION: Given the involvement of the fusiform gyrus in anxiety disorders, this study yields promising findings in order to better understand women's vulnerability to anxiety disorders.
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Encéfalo/fisiologia , Emoções/fisiologia , Caracteres Sexuais , Adolescente , Adulto , Idoso , Mapeamento Encefálico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Reconhecimento Visual de Modelos/fisiologia , Adulto JovemRESUMO
BACKGROUND: Repetitive transcranial magnetic stimulation has been explored in patients with obsessive-compulsive disorder, but with negative or conflicting results. This randomized double-blind study was designed to assess the efficacy of 1-Hz repetitive transcranial magnetic stimulation over the presupplementary area. METHODS: Forty medication-resistant patients were assigned to 4 weeks of either active or sham repetitive transcranial magnetic stimulation targeting the presupplementary area with the help of a neuronavigation system. RESULTS: According to the Yale-Brown obsessive-compulsive scale, the baseline-week 4 evolution showed no significant differences between groups. Responder rates at week 4 were not different between groups (repetitive transcranial magnetic stimulation 10.5% vs sham 20%; P=.63). CONCLUSION: Low-frequency repetitive transcranial magnetic stimulation applied to the presupplementary area seems ineffective for the treatment of obsessive-compulsive disorder patients, at least in severe and drug-refractory cases such as those included in this study. Further research is required to determine profiles of responder patients and appropriate repetitive transcranial magnetic stimulation parameters for obsessive-compulsive disorder.
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Córtex Motor/fisiologia , Transtorno Obsessivo-Compulsivo/terapia , Estimulação Magnética Transcraniana , Adulto , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto JovemRESUMO
Therapies based on cognitive remediation integrate psychiatric care. Cognitive remediation helps to ease cognitive disorders and enable patients to improve their day-to-day lives. It is essential to complete nurses' training in this field. This article presents the example of a patient with schizophrenia who followed the Cognitive Remediation Therapy programme, enabling him to access mainstream employment.
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Transtornos Cognitivos/enfermagem , Transtornos Cognitivos/psicologia , Remediação Cognitiva/métodos , Esquizofrenia/enfermagem , Psicologia do Esquizofrênico , Adulto , Transtornos Cognitivos/reabilitação , Remediação Cognitiva/educação , Terapia Combinada , Humanos , Masculino , Enfermagem Psiquiátrica/educação , Reabilitação Vocacional/psicologia , Esquizofrenia/reabilitaçãoRESUMO
BACKGROUND: despite years of development, response to neurostimulation remains partial and variable. Combining techniques could improve clinical efficacy and tolerance. OBJECTIVE: to examine the literature on the effects of combining several neurostimulation techniques in patients with mental disorders. METHODS: this systematic review follows the PRISMA guidelines RESULTS: 23 studies were included. The most studied combination was electroconvulsive therapy (ECT) along with another neurostimulation technique in depression. The RCTs that showed a significant effect targeted the left dorsolateral prefrontal cortex with high-frequency repetitive transcranial magnetic stimulation, before ECT. Combining neurostimulation techniques is a promising field of research.
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Transtorno Depressivo Maior , Eletroconvulsoterapia , Transtornos Mentais , Humanos , Estimulação Magnética Transcraniana/métodos , Eletroconvulsoterapia/métodos , Transtorno Depressivo Maior/terapia , Transtornos Mentais/terapia , Resultado do TratamentoRESUMO
Clozapine, renowned for its efficacy in treatment-resistant schizophrenia, is associated with rare yet potentially severe side effects, including hematological disorders, myocarditis, seizures and gastrointestinal obstruction. Dermatological adverse effects, though less serious, can profoundly impact patients' quality of life. We present the first reported case of cholinergic urticaria induced by clozapine, in a 25-year-old male with treatment-resistant schizophrenia. Four months into clozapine therapy, the patient developed intensely pruritic erythematous lesions triggered by sweating, significantly impairing his daily activities. Despite attempts at management, including dose reduction and antihistamine therapy, the urticaria persisted. However, a favorable outcome was achieved upon switching to quetiapine. This case underscores the importance of recognizing and managing treatment-related adverse effects, even when they arise late in treatment, and highlights the need for individualized therapeutic approaches.We discuss potential mechanisms underlying clozapine-induced cholinergic urticaria and emphasize the significance of patient-centered care in optimizing treatment outcomes in schizophrenia.
Itchy rash from sweating with clozapine Despite its undisputed efficacy, clozapine has attracted a great deal of attention for its rare but potentially serious side effects, such as hematological disorders (in particular, low white blood cell counts), seizures and inflammation of the heart muscle. Other effects, notably cutaneous, have also been reported, and although they are not serious, they can have a considerable impact on the patient's quality of life. Such is the case of our patient who became allergic to his own sweat while taking clozapine. To our knowledge, this is the first case described in the literature. The patient was a 25-year-old man suffering from resistant schizophrenia, i.e. who had failed to respond to successive use of two different antipsychotics. Four months after starting treatment with clozapine, he developed a generalized cutaneous eruption characterized by intensely pruritic erythematous punctiform lesions which appeared with each episode of perspiration. The lesions considerably disrupted the patient's daily activities, making it necessary to refrain from physical effort and avoid exposure to heat. Despite attempts to manage symptoms, by treatment with antihistamines and clozapine dose reduction, the urticaria persisted. However, a favorable and durable outcome was observed after switching to quetiapine rather than olanzapine. This case highlights the importance of recognizing and managing treatment-related undesirable side effects, even if they appear late in the course of treatment, and of not neglecting their impact on the patient's daily life. In this report, we have also tried to outline the hypothetical mechanisms that could explain this unusual side effect. This case encourages clinicians to always seek the optimal antipsychotic for their patients, even after several therapeutic failures and/or episodes of intolerance. Trial and error can lead to more effective, personalized treatment.
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WHAT IS KNOWN ABOUT THE SUBJECT: Caring for a family member with a mental illness induces a burden on the caregiver, an impact on their quality of life and premature ageing of more than ten years. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE: We conducted systematised and individualised nursing interviews with family members, on the first days of a relative's hospitalisation, during hospitalisation and three months after discharge. We observed persistent depressive symptoms during and after hospitalisation. Burden and depression were higher, and quality of life was lower, for women caregivers and when the caregivers admitted the patients involuntarily in the hospital ward. When the caregivers were experiencing a patient's first hospitalisation, we also found higher depressive symptoms and lower quality of life. WHAT ARE THE IMPLICATIONS FOR PRACTICE: This study emphasises the need for new interventions such as psychoeducation to alleviate the suffering of families. Considering the burden of families could become a prevention objective from the patient's first hospitalisation and prevent them from mental or physical health problems. ABSTRACT: Introduction The burden consequent to providing care to patients with psychiatric chronic conditions is often overlooked by health professionals. Aim We assessed the impact of patients' psychiatric hospitalisation on their caregivers, through evaluating their suffering, burden and quality of life, in three stages: upon the patients' admission, their discharge and 3 months after their discharge. Method In total, 127 caregivers of adult patients whose first hospitalisation was less than 5 years ago were assessed using the 36-item Short-Form Health Survey, the Zarit Burden Interview and the Center for Epidemiologic Studies Depression scale. Results Females and caregivers who admitted patients against their will experienced higher burden and depression and lower mental quality of life. We also found higher depressive symptoms and lower quality of life among caregivers during a patient's first hospitalisation. The caregiver's familial relationship to the patient was not associated with these outcomes. Finally, burden decreased and quality of life increased over time. Discussion Results suggest that several variables associated with patient hospitalisations were correlated with burden, depression or quality of life. Implications for Practice Burden could be targeted with interventions such as group psychoeducation for caregivers during or after the patient's hospitalisation, in order to reduce their distress and improve their quality of life. Psychiatric and mental health nurses can provide support to caregivers with systematic assessments of their burden and quality of life, so as to better meet their needs and promote their ability to cope with mental illness.
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Introduction: Metacognition is the ability to reflect on one's own cognitive processes, monitor and regulate them to enhance mental performance. Social cognition involves the capacity to perceive and respond to social cues from others. The study of metacognition and social cognition is an expanding research field in psychiatry. Both domains are related to neurocognition, symptoms and psychosocial functioning in schizophrenia. Understanding the relationship between social cognition and metacognition may be pivotal for enhancing the treatment of cognitive symptoms in schizophrenia. Methods: We conducted a PRISMA systematic review and meta-analysis on quantitative studies comparing metacognition to social cognitive outcomes in adult outpatients with a schizophrenia spectrum disorder. Reports were retrieved from the Medline, ScienceDirect and PsycINFO databases up to July 13th, 2023. Risk of bias was assessed with the Cochrane tool. Results: Our review included 1,036 participants across 17 reports, with 12 reports included in the meta-analysis. We found a significant positive correlation (r = 0.28, 95% CI: [0.14, 0.41]) between social cognition and metacognition. Subgroup analyses indicated that metacognition was specifically associated with theory of mind, attribution, and emotion processing. Different patterns of correlations were observed according to the assessment of metacognition and its subdimensions. Conclusion: Despite discrepancies among the included studies, no publication bias was detected. The results suggest that metacognition and social cognition are distinct but related constructs. Those processes should be assessed and treated together, along with neurocognition, in schizophrenia.
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Catatonia is a severe and potentially life-threatening neuropsychiatric condition. Electroconvulsive therapy (ECT) is the gold standard second-line intervention for catatonia after benzodiazepine failure. However, the access to ECT can be particularly challenging, especially during periods of increased strain on medical facilities, such as the COVID-19 pandemic. Several case reports have suggested the potential efficacy of transcranial direct current stimulation (tDCS) in addressing catatonia. In our case, we present the successful application of intensive tDCS, delivering five sessions per day, each lasting 20 min, with an intensity of 2 mA. The tDCS montage involved placing the anode on the left dorsolateral prefrontal cortex (DLPFC) and the cathode on the left temporoparietal junction (TPJ). This approach was well-tolerated and resulted in a significant improvement in a 70-year-old patient with catatonia, for whom ECT was deemed necessary. While these results are promising, it is crucial to confirm them through a randomized controlled study.
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Suicidal ideation (SI) is a major suicide risk factor; therefore, it is crucial to identify individuals with SI. Discrepancies between the clinicians and patients' estimation of SI may lead to under-evaluating the suicide risk. Yet, studies on discrepancies between self- and clinician-rated SI are lacking, although identifying the patients' sociodemographic and clinical characteristics associated with such discrepancies might help to reduce the under-evaluation risk. Therefore, the aim of this study was to identify features associated with SI rating discrepancies in patients with bipolar disorder (BD) because of the high prevalence of suicide in this population. Among the patients recruited by the French network of FondaMental expert centers for BD, patients with SI (i.e. ≥2 for item 12 of the Quick Inventory of Depressive Symptomatology-Self Report and/or ≥3 for item 10 of the clinician-rated Montgomery and Åsberg Depression Rating Scale) were selected and divided in concordant (i.e. SI in both self- and clinician-rated questionnaires; n = 130; 25.6%), and discordant (i.e. SI in only one questionnaire; n = 377; 74.4%). Depression severity was the feature most associated with SI evaluation discrepancy, especially in patients with SI identified only with the self-rated questionnaire. Clinician may under-evaluate SI presence in patients with low depression level.
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Transtorno Bipolar , Suicídio , Humanos , Ideação Suicida , Autorrelato , PacientesRESUMO
BACKGROUND: In 2008, the U.S. FDA approved rTMS as a treatment against medication-resistant depression. However, real-world rTMS outcomes remain understudied. This study investigates how rTMS for depression is delivered in routine clinical practice in France, and measures its effectiveness as well as its moderators. METHODS: Five centers provided retrospective data on patients who were treated with rTMS for treatment-resistant depression from January 2015 to December 2020. Patients were assessed twice using a hetero-questionnaire, with baseline and immediate post-treatment assessments. We conducted univariate analyses to study which factors were significantly associated with rTMS effectiveness. We then included age, gender, and significant factors in a multivariate model. RESULTS: We collected data from 435 patients with a mean age of 51.27 (14.91): 66 % were female, and 26 % suffered from bipolar depression. Stimulation was delivered using four different stimulation parameters: 1 Hz (7 % of the individuals), 10 Hz (43 %), 20 Hz (12 %), and 50 Hz (intermittent Theta Burst Stimulation, iTBS) (38 %). The mean improvement of depressive symptoms was 33 % (p < 0.001, effect-size: 0.79). Response and remission rates were of 31 % and 22.8 %, respectively. In the multivariate analysis, improvement in depressive symptoms was associated with higher baseline symptoms. CONCLUSION: This is one of the largest studies that investigates, with careful clinician-rated scales by trained psychiatrists, the effect of rTMS in naturalistic settings. Repetitive TMS appears to be effective in routine clinical practice, although its efficacy could be improved by analyzing predictors of response, as well as personalized targeting of specific brain areas.
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Transtorno Depressivo Maior , Humanos , Feminino , Pessoa de Meia-Idade , Masculino , Transtorno Depressivo Maior/terapia , Transtorno Depressivo Maior/etiologia , Estimulação Magnética Transcraniana , Estudos Retrospectivos , Depressão/terapia , Encéfalo , Resultado do Tratamento , Córtex Pré-Frontal/fisiologiaRESUMO
BACKGROUND: Physical pain is a common issue in people with bipolar disorder (BD). It worsens mental health and quality of life, negatively impacts treatment response, and increases the risk of suicide. Lithium, which is prescribed in BD as a mood stabilizer, has shown promising effects on pain. METHODS: This naturalistic study included 760 subjects with BD ( FACE-BD cohort) divided in two groups: with and without self-reported pain (evaluated with the EQ-5D-5L questionnaire). In this sample, 176 subjects were treated with lithium salts. The objectives of the study were to determine whether patients receiving lithium reported less pain, and whether this effect was associated with the recommended mood-stabilizing blood concentration of lithium. RESULTS: Subjects with lithium intake were less likely to report pain (odds ratio [OR] = 0.59, 95% confidence interval [CI], 0.35-0.95; p = 0.036) after controlling for sociodemographic variables, BD type, lifetime history of psychiatric disorders, suicide attempt, personality traits, current depression and anxiety levels, sleep quality, and psychomotor activity. Subjects taking lithium were even less likely to report pain when lithium concentration in blood was ≥0.5 mmol/l (OR = 0.45, 95% CI, 0.24-0.79; p = 0.008). CONCLUSIONS: This is the first naturalistic study to show lithium's promising effect on pain in subjects suffering from BD after controlling for many confounding variables. This analgesic effect seems independent of BD severity and comorbid conditions. Randomized controlled trials are needed to confirm the analgesic effect of lithium salts and to determine whether lithium decreases pain in other vulnerable populations.
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Transtorno Bipolar , Humanos , Transtorno Bipolar/tratamento farmacológico , Transtorno Bipolar/psicologia , Lítio/efeitos adversos , Qualidade de Vida , Sais/uso terapêutico , Antimaníacos/uso terapêutico , Dor/tratamento farmacológico , Analgésicos/uso terapêuticoRESUMO
The risk of suicide in psychiatric hospitals is 50 times higher than in the general population, despite patient safety being a priority for any hospital. However, to date, due to the complexity of assessing suicide risk, there has been no consensus on the suicide prevention measures that should be in place in hospitals. The aim of this work is: To provide an overview of the progress that has been made in the field of inpatient suicide prevention in recent years; discuss the problems that remain; and suggest potential future developments. As new clinical dimensions (notably anhedonia, psychological pain and hopelessness) develop, they should become new therapeutic targets. Team training (like the Gatekeeper Training Program) and the latest advances in suicide risk assessment (such as the Collaborative Assessment and Management of Suicidality) should be implemented in psychiatric wards. Suicide prevention plans (e.g., ASSIP, SAFE-T, etc.) represent easy-to-administer, low-cost interventions. The Mental Health Environment of Care Checklist has been proven effective to reduce suicide risk at hospitals. Furthermore, the types of psychotherapy recommended to reduce suicide risk are cognitive behavioral therapy (CBT) and dialectical behavioral therapy (DBT). There are several pharmacological treatments for suicide risk, such as lithium and clozapine, which have been shown to be effective in the long term, as well as ketamine and esketamine, which are more effective in the short term. Following some encouraging recent results, buprenorphine may also be proposed to patients with a suicide risk. Triple chronotherapy rapidly improves depressive symptoms over 9 weeks. Regarding brain stimulation techniques, rTMS has proven to be effective in alleviating multiple dimensions of suicidality.
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Priapism is a rare pathological condition defined as painful and persistent penile erection that is unrelated to sexual stimulation. It can be classified as ischaemic or non-ischaemic. Many causes have been attributed to ischaemic priapism, including the use of some medications such as antipsychotics. The mechanism of priapism associated with antipsychotics is thought to be related to alpha-adrenergic blockage that is mediated by the alpha receptors in the corpora cavernosa of the penis. In this paper, we describe a case of a patient who suffered from Risperidone-induced priapism, and how this adverse effect was resolved by switching to olanzapine followed by olanzapine pamoate. A literature search on PubMed/Medline up to 2011 was conducted by some doctors from London and found 30 cases of priapism associated with risperidone. Based on this work, we searched PubMed through 2021, using the keywords 'priapism' and 'risperidone' and found a total of 43 cases of priapism involving risperidone. Priapism is not correlated with the dosage of this psychotropic drug, and has also occasionally occurred when risperidone has been used in conjunction with another drug. The question of choosing a replacement antipsychotic after the first one has induced priapism, remains problematic. It would be preferable to switch to a drug with less marked alpha1-blocking properties, but no consensus has been reached as to the best choice of medication. Finally, any prescription of an antipsychotic treatment must be preceded by a careful interrogation in search of risk factors for priapism, and the patient should be made aware of the possible occurrence of this side effect and the need to then seek urgent medical advice.
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Auditory verbal hallucinations (AVH) in schizophrenia (SZ) have been associated with abnormalities of the left arcuate fasciculus and transcallosal white matter projections linking homologous language areas of both hemispheres. While most studies have used a whole-tract approach, here we focused on analyzing local alterations of the above-mentioned pathways in SZ patients suffering medication-resistant AVH. Fractional anisotropy (FA) was estimated along the left arcuate fasciculus and interhemispheric projections of the rostral and caudal corpus callosum. Then, potential associations between white matter tracts and SZ symptoms were explored by correlating local site-by-site FA values and AVH severity estimated via the Auditory Hallucinations Rating Scale (AHRS). Compared to a sample of healthy controls, SZ patients displayed lower FA values in the rostral portion of the left arcuate fasciculus, near the frontal operculum, and in the left and right lateral regions of the rostral portion of the transcallosal pathways. In contrast, SZ patients showed higher FA values than healthy controls in the medial portion of the latter transcallosal pathway and in the midsagittal section of the interhemispheric auditory pathway. Finally, significant correlations were found between local FA values in the left arcuate fasciculus and the severity of the AVH's attentional salience. Contributing to the study of associations between local white matter alterations of language networks and SZ symptoms, our findings highlight local alterations of white matter integrity in these pathways linking language areas in SZ patients with AVH. We also hypothesize a link between the left arcuate fasciculus and the attentional capture of AVH.
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Esquizofrenia , Substância Branca , Humanos , Substância Branca/diagnóstico por imagem , Esquizofrenia/diagnóstico por imagem , Esquizofrenia/complicações , Projetos Piloto , Imagem de Tensor de Difusão , Alucinações/diagnóstico por imagem , AnisotropiaRESUMO
Background: Intermittent Theta Burst Stimulation (iTBS) is a design of repetitive Transcranial Magnetic Stimulation (rTMS) and could be a candidate to replace rTMS in the treatment of depression, thanks to its efficacy, shorter duration, and ease of use. The antidepressant mechanism of iTBS, and whether this mechanism is mediated by a modulation of cortical excitability, remains unknown. Methods: Using a randomized double-blind, sham-controlled trial, 30 healthy volunteers received either iTBS or a sham treatment targeting the left DorsoLateral PreFrontal Cortex (L-DLPFC), twice a day over 5 consecutive days. Cortical excitability was measured before and after the 5 days of stimulation. Results: No difference in cortical excitability was observed between active or sham iTBS. Conclusion: Our study does not support any effect on cortical excitability of repetitive iTBS targeting the L-DLPFC.