Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 634
Filter
1.
Australas Psychiatry ; : 10398562241282377, 2024 Sep 06.
Article in English | MEDLINE | ID: mdl-39240731

ABSTRACT

OBJECTIVE: Recent guidelines suggest that the overall quantity and duration of antidepressant prescriptions should be reduced. In this paper, we comment on the evidence both for and against this view. METHODS: We critically review the arguments proposed by proponents of antidepressant deprescribing in the context of the evidence-base for the treatment of depression. RESULTS: Proponents of deprescribing do not address the substantive issues of whether inappropriate prescribing has been demonstrated, and when prescribing is needed. Their arguments for deprescribing are rebutted in this context. CONCLUSIONS: Whether or not to deprescribe antidepressant medication needs to take into consideration the risk-benefit profile of the decision, the responsibility for which needs to be shared and based on the context of the patient's depression, their preferences, experiences and perspectives.

2.
Article in English | MEDLINE | ID: mdl-39127424

ABSTRACT

BACKGROUND: Torture trauma is characterised by intentional uncontrollable acts, but the long-term effects of torture exposure on cognitive control brain mechanisms are unknown. METHODS: A final sample of 33 torture survivors (TS) and 44 non-torture survivors (NTS), all with a refugee background, completed a Go/NoGo response inhibition task during fMRI scanning. Data-driven independent components analysis identified active networks across the task, and within Go, NoGo and error of commission trials. Groups were compared on within/between network connectivity, controlling for demographic and psychological symptom covariates. Secondary analyses investigated whether network connectivity moderated the associations between torture exposure and severity on fear (e.g. re-experiencing) and dysphoria (e.g. anhedonia) posttraumatic stress disorder (PTSD) symptoms. RESULTS: The TS group exhibited decreased connectivity (compared to NTS controls) within the posterior default mode network (specifically the left precuneus) and auditory-motor network (specifically right superior temporal gyrus STG), and reduced connectivity between the dorsomedial frontal network (dmFN) and dorsal attention network (dAN) across the Go/NoGo task. The TS group also showed comparatively more negative ventral attention network connectivity during NoGo (i.e. inhibition) trials. No behavioral effects were observed. Secondary analyses revealed that association between torture exposure and elevated PTSD dysphoria (not fear) symptoms was moderated by reduced connectivity in the right STG and between the dmFN-dAN. CONCLUSIONS: Response inhibition, attention and motor networks appear less connected in torture survivors, which may be specifically linked to PTSD dysphoria symptom profiles. Findings suggest that targeting cognitive control processes may hold promise for alleviating post-traumatic symptoms amongst survivors of torture.

3.
Bipolar Disord ; 2024 Aug 29.
Article in English | MEDLINE | ID: mdl-39209734
5.
Br J Psychiatry ; 225(1): 259-261, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39168589

ABSTRACT

With assisted dying becoming increasingly available to people suffering from somatic diseases, the question arises whether those suffering from mental illnesses should also have access. At the heart of this difficult and complex matter are values such as equality and parity of esteem. These issues require humane deliberation.


Subject(s)
Mental Disorders , Suicide, Assisted , Humans , Suicide, Assisted/psychology , Mental Disorders/therapy , Empathy
7.
Neuroimage Clin ; 43: 103656, 2024.
Article in English | MEDLINE | ID: mdl-39180979

ABSTRACT

Understanding why some patients with depression remain resistant to antidepressant medication could be elucidated by investigating their associated neural features. Although research has consistently demonstrated abnormalities in the anterior cingulate cortex (ACC) - a region that is part of the default mode network (DMN) - in treatment-resistant depression (TRD), a considerable research gap exists in discerning how these neural networks distinguish TRD from treatment-sensitive depression (TSD). We aimed to evaluate the resting-state functional connectivity (rsFC) of the ACC with other regions of the DMN to better understand the role of this structure in the pathophysiology of TRD. 35 TRD patients, 35 TSD patients, and 38 healthy controls (HC) underwent a resting-state functional MRI protocol. Seed-based functional connectivity analyses were performed, comparing the three groups for the connectivity between two subregions of the ACC (the subgenual ACC (sgACC) and the rostral ACC (rACC)) and the DMN (p < 0.05 FWE corrected). Furthermore, inter-network connectivity of the DMN with other neural networks was explored by independent component (ICA) analyses (p < 0.01, FDR corrected). The results demonstrated hyperconnectivity between the rACC and the posterior cingulate cortex in TRD relative to TSD and HC (F(2,105) = 5.335, p < 0.05). ICA found DMN connectivity to regions of the visual network (TRDTSD), differentiating the two clinical groups. These results provide confirmatory evidence of DMN hyperconnectivity and preliminary evidence for its interactions with other neural networks as key neural mechanisms underlying treatment non-responsiveness.


Subject(s)
Default Mode Network , Depressive Disorder, Treatment-Resistant , Gyrus Cinguli , Magnetic Resonance Imaging , Nerve Net , Humans , Male , Female , Adult , Magnetic Resonance Imaging/methods , Default Mode Network/diagnostic imaging , Default Mode Network/physiopathology , Depressive Disorder, Treatment-Resistant/diagnostic imaging , Depressive Disorder, Treatment-Resistant/physiopathology , Depressive Disorder, Treatment-Resistant/drug therapy , Middle Aged , Gyrus Cinguli/diagnostic imaging , Gyrus Cinguli/physiopathology , Nerve Net/diagnostic imaging , Nerve Net/physiopathology , Connectome/methods , Brain/physiopathology , Brain/diagnostic imaging , Young Adult , Neural Pathways/physiopathology , Neural Pathways/diagnostic imaging , Brain Mapping/methods
8.
Lancet ; 404(10452): 523-524, 2024 Aug 10.
Article in English | MEDLINE | ID: mdl-39127474
9.
Article in English | MEDLINE | ID: mdl-38997004

ABSTRACT

We read with great interest the article by Srinivasan et al.,1 and we are heartened to see a renewed focus on irritability as an important phenomenon that necessitates better understanding. In particular, the hypothesis that irritability in childhood may signal the development of psychiatric problems later in life is a persuasive concept that aligns with our thinking.

10.
Australas Psychiatry ; : 10398562241261247, 2024 Jul 19.
Article in English | MEDLINE | ID: mdl-39030680

ABSTRACT

OBJECTIVE: Sexual wellbeing is a fundamental component of overall wellbeing and is often impacted by common psychiatric disorders such as depression. Despite this, research suggests it is underexplored in clinical practice. This preliminary study aimed to examine whether this is the case in both psychiatrists and general practitioners (GPs). METHOD: GPs and psychiatrists completed a survey examining the exploration of various sexual wellbeing domains with patients. It included open-ended questions regarding factors that influence this exploration, whether clinicians felt this was their responsibility, and their level of training in this area. RESULTS: Clinicians who felt it was their responsibility to enquire about sexual wellbeing reported exploring it in more patients than those who did not endorse this perspective. Overall, clinicians from both specialties demonstrated a reluctance to explore most sexual wellbeing topics, and this appeared to be due to many factors including views held by clinicians themselves. Most clinicians felt they had not received adequate training in this area. CONCLUSIONS: Domains of sexual wellbeing are largely underexplored by clinicians from both specialties. Educational materials and training for clinicians are needed to facilitate the exploration of this important area with patients, specifically in the context of mental health.

11.
J Affect Disord ; 361: 268-276, 2024 Sep 15.
Article in English | MEDLINE | ID: mdl-38866252

ABSTRACT

BACKGROUND: While self-construal and posttraumatic stress disorder (PTSD) are independently associated with altered self-referential processes and underlying default mode network (DMN) functioning, no study has examined how self-construal affects DMN connectivity in PTSD. METHODS: A final sample of 93 refugee participants (48 with DSM-5 PTSD or sub-syndromal PTSD and 45 matched trauma-exposed controls) completed a 5-minute resting state fMRI scan to enable the observation of connectivity in the DMN and other core networks. A self-construal index was calculated by substracting scores on the collectivistic and individualistic sub-scales of the Self Construal Scale. RESULTS: Independent components analysis identified 9 active networks-of-interest, and functional network connectivity was determined. A significant interaction effect between PTSD and self-construal index was observed in the anterior ventromedial DMN, with spatial maps localizing this to the left ventromedial prefrontal cortex (vmPFC), extending to the ventral anterior cingulate cortex. This effect revealed that connectivity in the vMPFC showed greater reductions in those with PTSD with higher levels of collectivistic self-construal. LIMITATIONS: This is an observational study and causality cannot be assumed. The specialized sample of refugees means that the findings may not generalize to other trauma-exposed populations. CONCLUSIONS: Such a finding indicates that self-construal may shape the core neural architecture of PTSD, given that functional disruptions to the vmPFC underpin the core mechanisms of extinction learning, emotion dysregulation and self-referential processing in PTSD. Results have important implications for understanding the universality of neural disturbances in PTSD, and suggest that self-construal could be an important consideration in the assessment and treatment of post-traumatic stress reactions.


Subject(s)
Default Mode Network , Magnetic Resonance Imaging , Prefrontal Cortex , Refugees , Self Concept , Stress Disorders, Post-Traumatic , Humans , Stress Disorders, Post-Traumatic/physiopathology , Stress Disorders, Post-Traumatic/diagnostic imaging , Refugees/psychology , Male , Female , Adult , Default Mode Network/physiopathology , Default Mode Network/diagnostic imaging , Prefrontal Cortex/physiopathology , Prefrontal Cortex/diagnostic imaging , Gyrus Cinguli/physiopathology , Gyrus Cinguli/diagnostic imaging , Middle Aged , Young Adult , Brain Mapping , Brain/physiopathology , Brain/diagnostic imaging
12.
Int J Bipolar Disord ; 12(1): 14, 2024 May 02.
Article in English | MEDLINE | ID: mdl-38696069

ABSTRACT

This is an overview of recent advances on predominant polarity conceptualization in bipolar disorder (BD). Current evidence on its operationalized definitions, possible contextualization within the affective spectrum, along with its epidemiological impact, and treatment implications, are summarized. Predominant polarity identifies three subgroups of patients with BD according to their mood recurrencies: (i) those with depressive or (ii) manic predominance as well as (iii) patients without any preponderance ('nuclear' type). A predominant polarity can be identified in approximately half of patients, with similar rates for depressive and manic predominance. Different factors may influence the predominant polarity, including affective temperaments. More generally, affective disorders should be considered as existing on a spectrum ranging from depressive to manic features, also accounting for disorders with 'ultrapredominant' polarity, i.e., unipolar depression and mania. While mixed findings emerge on its utility in clinical practice, it is likely that the construct of predominant polarity, in place of conventional differentiation between BD-I and BD-II, may be useful to clarify the natural history of the disorder and select the most appropriate interventions. The conceptualization of predominant polarity seems to reconcile previous theoretical views of both BD and affective spectrum into a novel perspective. It may provide useful information to clinicians for the early identification of possible trajectories of BD and thus guide them when selecting interventions for maintenance treatment. However, further research is needed to clarify the specific role of predominant polarity as a key determinant of BD course, outcome, and treatment response.

16.
Asian J Psychiatr ; 93: 103943, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38342035

ABSTRACT

Historically, doctors have migrated for a range of personal, educational, economic, and political reasons. Likewise, medical students from many countries have moved abroad to complete their training and education and may or may not return to their country of origin. Within this context, globalisation has had a major impact on medical education and healthcare workforces, contributing to recent migration trends. Globalisation is a complex phenomenon with positive and negative outcomes. For example, lower-income countries are regularly losing doctors to higher-income areas, thereby exacerbating strains on existing services. Across various national healthcare settings, migrating International Medical Graduates (IMGs) can face socioenvironmental and psychosocial pressures, which can lead to lower mental wellbeing and undermine their contributions to clinical care. Rates of stress and burnout are generally increasing for doctors and medical students. For IMGs, stressors related to migration, acculturation, and adjustment are not dissimilar to other migrants but may carry with them specific nuances. Accordingly, this Commission will explore the history of IMG trends and the challenges faced by IMGs, proposing recommendations and solutions to support their mental health and wellbeing.


Subject(s)
Physicians , Psychiatry , Humans , Foreign Medical Graduates , Mental Health , Health Personnel
17.
Clin Psychopharmacol Neurosci ; 22(1): 33-44, 2024 Feb 29.
Article in English | MEDLINE | ID: mdl-38247410

ABSTRACT

Objective: : To explore illness-related factors in patients with major depressive disorder (MDD) recipients of adjunctive minocycline (200 mg/day) treatment. The analysis included participants experiencing MDD from a 12-week, double blind, placebo-controlled, randomized clinical trial (RCT). Methods: : This is a sub-analysis of a RCT of all 71 participants who took part in the trial. The impact of illness chronicity (illness duration and number of depressive episodes), systemic illness (endocrine, cardiovascular and obesity), adverse effects and minocycline were evaluated as change from baseline to endpoint (12-week) using ANCOVA. Results: : There was a consistent but statistically non-significant trend on all outcomes in favour of the use of adjunctive minocycline for participants without systemic illness, less illness chronicity, and fewer adverse effects. Conclusion: : Understanding the relationship between MDD and illness chronicity, comorbid systemic illness, and adverse effects, can potentially better characterise those individuals who are more likely to respond to adjunctive anti-inflammatory medications.

18.
Australas Psychiatry ; 32(1): 5-7, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38265018
19.
Br J Psychiatry ; 224(3): 79-81, 2024 03.
Article in English | MEDLINE | ID: mdl-38174364

ABSTRACT

The non-reporting of negative studies results in a scientific record that is incomplete, one-sided and misleading. The consequences of this range from inappropriate initiation of further studies that might put participants at unnecessary risk to treatment guidelines that may be in error, thus compromising day-to-day clinical practice.


Subject(s)
Anorexia Nervosa , Humans , Anorexia Nervosa/therapy , Optimism
20.
Health Care Anal ; 2024 Jan 12.
Article in English | MEDLINE | ID: mdl-38214808

ABSTRACT

This paper explores the dilemma faced by mental healthcare professionals in balancing treatment of mental disorders with promoting patient well-being and flourishing. With growing calls for a more explicit focus on patient flourishing in mental healthcare, we address two inter-related challenges: the lack of consensus on defining positive mental health and flourishing, and how professionals should respond to patients with controversial views on what is good for them. We discuss the relationship dynamics between healthcare providers and patients, proposing that 'liberal' approaches can provide a pragmatic framework to address disagreements about well-being in the context of flourishing-oriented mental healthcare. We acknowledge the criticisms of these approaches, including the potential for unintended paternalism and distrust. To mitigate these risks, we conclude by suggesting a mechanism to minimize the likelihood of unintended paternalism and foster patient trust.

SELECTION OF CITATIONS
SEARCH DETAIL