Valproic acid (VPA) is considered a well-tolerated antiepileptic drug used in Bipolar Disorder as a mood stabilizer. Nevertheless, VPA has been related to several adverse effects. Neutropenia is included as a potential adverse effect, although in clinical practice it is not often measured with regularity.

To report a case of a patient with Bipolar Disorder type 2 and Personality Disorder Cluster B treated with VPA with a neutropenia caused by VPA.

A 61-year-old woman assists to the outpatient psychiatric unit in order to a pharmacological treatment adjustment. A blood test is performed showing a decrease in the levels of neutrophiles in comparison with previous tests. Psychiatric history is revised finding and association between the prescription of VPA and the reduction of neutrophile levels. When this drug was removed, neutrophile levels had increased again up to normal levels.

Due to the relationship between neutropenia and VPA treatment, we decided to discontinue this drug. At the beginning the patient doesn’t agree with the withdrawal of VPA treatment due to its effectiveness in her mood stabilization. Psychoeducation sessions are performed in order to explain risk and benefits of potentials treatment alternatives versus maintaining the same prescription. Finally the patient accepts the switch of the mood stabilizer treatment to oxcarbazepine with a good tolerability and effectiveness.

Periodical blood test monitoring is needed in order to study adverse effects as neutropenia in patients with VPA treatment.

The author has received support from Janssen-Cilag, Otsuka-Lundbeck, Italfármaco, Angelini Pharma and Casen Recordati; and declares no support related to the subject of this article.

Levetirazetam is an antiepileptic drug with psychiatric adverse reactions. It includes psychosis, paranoia or hallucinations. The frequency is less than 1%.

To describe a case of Psychosis produced by Levetirazetam

Retrospective review of clinical records and complementary test, including psychiatry, electrophysiology and neurology. Diagnosis schales such as Salamanca Questionnaire were used as suport.

A 42-year-old woman diagnosed with tuberous sclerosis and undergoing treatment with levetirazetam acudes to the emergency department for behavioral disorders. She has presented an episode of aggression against a relative threatening him with a kitchen knife. The family reports that since the change in antiepilepticus 1 month ago, the patient has presented strange behaviors. Te Patient is conscious, uncooperative. Barely Approachable. Suspicious of her surroundings, with psychomotor restlessness, self-reference ideas and sparse speech. Auditory hallucinations seem to be present, as well as depressed and irritable mood. Psychic and somatic anxiety is found.

Levetirazetam is discontinued, being replaced by valproic acid. Risperidone is started at a 3 mg dose. Treatment is well tolerated, and clinical stability is achived. Cluster A personality traits are found. Complementary test Blood and Urine simples, Imaging tests (CT and MRI), electroencephalogram and Electrocardiogram show no alterations

Levetirazetam can cause psychiatric adverse effects. it is important to make a proper diagnosis before a first psychotic outbreak in later life. Drugs that can produce psychiatric side effects should be identified and patients should be inform.

No significant relationships.

We present the case of a male patient, 47 years old, diagnosed with schizophrenia, that was admitted at our hospital presenting a confusional state, with agitation, motor discoordination and difficulty breathing. At the blood analyses there was evidence of an increase in cardiac enzymes. The clinical manifestations had begun 5 days before, with slight leucocytosis showing in a routine blood test made after initiating clozapine, followed by fever, vomiting and progressive impairment of general clinical state.

To describe a case of clozapine-induced myocarditis, which is a known, but rare, side effect of clozapine and to do a brief review of the existing knowledge on this matter.

The authors undertook an article review using PubMed database and a thorough analysis of the clinical case.

The hypothesis of clozapine-induced myocarditis was the main diagnosis considered since the beginning, nevertheless, a thorough clinical examination and complementary tests were made and all the previous psychopharmacological treatment was suspended. The final diagnosis was based on the clinical presentation (fever, vomiting, shortness of breath, confusion and impairment of general state), the elevation of CRP, PCT and TnI and findings on echocardiogram that suggested myocarditis (moderate systolic dysfunction of the left ventricle due to global hypokinesia and a non dilated left ventricle).

The clinical manifestations observed, the results of the complementary diagnostic tests and the review of the existing literature, allowed to make the diagnosis of clozapine-induced myocarditis. We find of considerable importance to continue to publish and study this matter as it is still insufficiently known.

No significant relationships.

Interpersonal distance regulation is an essential element of social communication. Its impairment in autism spectrum disorder (ASD) is widely acknowledged among practitioners, but only a handful of studies reported empirical research. However, these studies did not measure the alterations of vegetative functions related to interpersonal distance.

We introduced a new experimental design to systematically measure interpersonal distance along with heart rate variability (HRV) in adults with ASD and tested the modulatory effect of intentionality, eye contact, moving activity, and attribution.

Twenty-two adults diagnosed with ASD and 21 matched neurotypical controls participated in our study from 2019 October to 2020 February. Our new experimental design combined the modified version of the stop distance paradigm with HRV measurement controlling for eye contact between the experimenter and the participant to measure interpersonal distance in incidental and intentional conditions.

Our results showed greater preferred distance in ASD in the intentional (W=103, p=0.002) but not in the incidental condition. These results were altered with eye contact and the participant’s role (active vs. passive) in the stop distance task (F(1,41)=6.150, p=0.017). Moreover, we found lower baseline HRV (t=-2.060, p=0.023) and reduced HRV reactivity in ASD; however, these vegetative measurements could not predict preferred interpersonal distance.

Our study highlights the importance of interpersonal distance regulation in ASD and the need for comprehensive experimental designs to grasp the complexity and underlying factors of distance regulation in typical and atypical populations.

No significant relationships.

Endorphins have been associated with analgesia and pleasurable activities. However, the so-called “happy chemicals” are far more complex than initially thought. Research shows that their impact on human behavior is modulatory, with the main goal not being “happiness” but a “return to the most desirable state” – which can be highly context-dependent.

Review of the modulatory functions of endorphins on human behavior and their possible implications in psychiatric conditions.

Pubmed search consisting of the MeSH terms “Endorphins”, “Opioid Peptides”, “Behavior”, and “Psychiatry”.

Endorphins elicit pleasure via stimulation of the release of dopamine from the ventral tegmental area to the nucleus accumbens. They are known to be involved in analgesia and stress response and social interaction. Endorphins can be released in a multitude of circumstances that may seem contradictory – having both inhibitory and stimulating roles in appetite, sexual response, and memory– but are modulatory effects depending on what constitutes homeostasis in each context. Peripheral levels of endorphins have been found low in depression and post-traumatic stress disorder. In schizophrenia, studies suggest that peripheral levels are high during psychosis, low in chronic disease and that naltrexone seems to improve auditory hallucinations. Endorphins may also have a role as markers of treatment response.

Endorphins have a complex role in behavior and homeostasis. These molecules could have implications in psychiatry- given that they are part of our stress response and are released to promote a more “desirable state”. Their role as a marker of illness or response to treatment needs further investigation.

No significant relationships.

Individuals with severe mental illnesses (SMI) often present the knowledge about a task but in real-time do not perform it fully, or not as efficient as planned. This performance gap may be explained by difficulties with Executive Functions (EF).

The aim of the presentation is to describe how people with and without SMI experience and perform grocery task. This, with considering this path from several directions including the subjects’ point of view using eye-tracking device during task performance.

Forty-three individuals had answered questions in regards to their shopping habits and performed the Test of Grocery Shopping Skills (TOGSS). The actual performance was accompanied by wearing an eye-tracking device which recorded the behavior and eye movement. We hypothesized that significant differences will be found between people with SMI and controls both in the routine grocery habits and in observed performance.

No significant differences in age or gender. The groups differed significantly only in education, with the SMI group having fewer years of education. As a weekly routine, SMI subjects perform less frequent shopping (40%) than control group subjects (67%). TOGSS sub-outcomes indicated performance efficiency (time and redundancy) were significantly higher in the research group than in the matched control group (p <.01), with the SMI group spending a longer time performing the task and entering more aisles than required – redundancy.

These preliminary findings indicate that individuals with SMI spend more time dwelling while selecting ingredients. Besides the path in the supermarket, it might explain their performance in other everyday activities.

No significant relationships.

The measurement of the physiological coherence, the order and the quality of the connection of complex systems such as the cardiac and the respiratory system, varies in situations of stress and relaxation.

We aim to assess changes in physiological coherence and perception of stress during mental stress and directed breathing exercises.

Repeated-measures study in healthy adults without prior training in breathing techniques, aged between 18 and 65 years of both sexes who were evaluated in three situations: baseline, mental stress (Stroop test and successive subtractions), and directed breathing, during which were captured heart rate and respiratory signals to estimate physiological coherence and the participants rated the perceived stress at each moment.

34 participants were analyzed, 59% women, with a median age of 36 years (Rq = 13). During mental stress tasks, the median for physiological coherence was similar to baseline coherence but increased significantly with five minutes of directed breathing exercises (38% vs. 63% p <0.0001). The highest perception of stress was during successive subtractions (Me 7, Rq = 4) and the lowest during directed breathing exercises (Me 2 Rq = 3.0). The correlation was sought between physiological coherence and perception of stress during each of the four moments of the study. Basal (Rho Spearman -0.05, p 0.54); Stroop (Rho -0.17, p 0.03); successive subtractions (Rho 0.50, p 0.77); and directed breathing (Rho -0.28, p 0.09).

A correlation was found between physiological coherence and perception of stress during the Stroop test; however, no association was found.

No significant relationships.

Vagus nerve stimulation produces therapeutic effects for the treatment of psychiatric disorders, heart failure, and others.

The aim of the current study was to evaluate the effects of the non-invasive vagus nerve stimulation on emotional burnout.

6 right-handed male volunteers aged 18-22 years participated in study. We used the combination of pleasant meditative classical music and a slow bi-polar wave (0.1-0.2 Hz) of electrical non-invasive transcutaneous auricular vagus nerve stimulation for 5 minutes. The set of 4 VNS was performed at intervals of 3 days. EEG was registered during the rest state (3 min, closed eyes condition). To measure the severity of emotional burnout in students, we used the 22-item Maslach Burnout Inventory (MBI).

VNS significantly improve the depersonalization and reduction of personal achievements (components of the emotional burnout). Changes in the psychoemotional state of the respondents were accompanied by the increase in the theta-Fz/alpha-Pz ratio, that reflects an enhancement of the activation level. A set of non-invasive stimulation of the auricular branch of the vagus nerve leads to an increase in the level of activation (the ratio of beta / alpha rhythms). The changes in the power of the alpha rhythm may relate to improving of mental process, creativity, creative thinking. An increase in alpha rhythm may reflect internally oriented attention in creative activities.

The preliminary data suggests that the novel mastoid stimulation device may have a prolonged stimulating effect on the brain processes while attenuating the burnout at the same time.

No significant relationships.

It has been suggested that dysregulation of sex hormones is associated with schizophrenia. However, obesity and metabolic syndrome are very common between schizophrenic patients, and it can also dysregulate sex hormones so they could act as confounders.

To determine if estradiol and progesterone are abnormally elevated regardless of obesity or metabolic syndrome in men with SCZ.

We measured serum levels of progesterone and estradiol in 56 schizophrenic male patients at treatment with a depot antipsychotic. Subsequently, we studied the association or independence of our results with obesity or metabolic syndrome by a Chi Square Test.

66.07% of our patients elevated progesterone levels, 19.64% of our patients elevated estradiol levels, and 16.07% of our patients elevated both, progesterone and estradiol, simultaneously. We found no relationship between increased estradiol and / or progesterone with obesity and / or metabolic syndrome.

Estradiol and progesterone are abnormally elevated regardless of obesity and / or metabolic syndrome in male schizophrenic patients on depot treatment.

No significant relationships.

Oxytocin, also known as the love molecule, was discovered in 1906 because of its effects on uterine contractions. It exists in all mammals and is partly responsible for delivery. Nonetheless, it seems that oxytoxin also takes part in something as important to nursing as the physical changes in childbirth – the behavioural predisposition to form human bonds and to care for others.

Present a review on Oxytocin and its functions in human behaviour and possible clinical implications

Pubmed and Google Scholar search using the keywords “oxytocin”, “behaviour”, “oxytocin in humans” and “psychiatry”.

Besides acting as a peripheral hormone following posterior hypophisis secretion, oxytocin can be diffused through several brain areas, acting as a neuropeptide in neurochemical circuits that promote sexual behaviour, maternal and caring behaviour towards newborns, and other subtle social processes like vinculation, social memories formation, aggressiveness towards strangers and anxiety reduction. These evolutionary advantages constitute the roots for feelings of love and social phenomena like solidarity and affection. Oxytocin is increased in response to sex hormones, during pregnancy and social interactions, especially mother-child contact; additionally, is associated with endorphin release and feelings of well-being. Several studies associate the oxytocinergic system to multiple clinical implications, such as Anxiety Disorders, PTSD, Depression, Autism, Borderline and Anti-social Personality Disorder.

Oxytocin has an important role in shaping social behaviours and in the development of secure interpersonal bonds. In the future, it can be a possible target for some psychiatric conditions; however, more research is required to prove therapeutic outcomes.

No significant relationships.

To understand the way chemistry influences human communication is important since the reaction to chemosignals has many implications for science and society. For instance, previous research showed a connection between olfaction and affective psychiatric disorders. Olfactory processing may be impaired in subject presenting depression symptoms (DEP). Furthermore, a heightened sensitivity to social odours has been shown in subject with social anxiety symptoms (SAD). This may be due to the partial overlap of brain areas which are involved in olfactory processing and the pathophysiology of these disorders. Yet, more detailed research on the olfactory processing is required.

POTION is an EU funded project within the Horizon2020 initiative that aims to understand the nature of chemosignals in humans and their sphere of influence on social interaction. Within this project, we conducted a preliminary exploratory study examining whether the odours may be utilized to support positive outcomes of psychological therapy. It evaluates the catalyst effect of the odour conditions on the effectiveness of mindfulness meditation for SAD and DEP.

Thirty subjects per patient group (total=60) are randomly allocated to one exposure group (happy or fearful human body odour or clean air) and follow the intervention while being exposed to the odour. Psychological outcome is measured before and after the intervention through the State-Trait Anxiety Inventory and the Profile of Mood State questionnaires. Analysis of variance is performed to assess outcome differences between groups.

Preliminary results on a subsample of 32 patients show a trend of deeper reduction of anxiety symptoms at post-treatment among odour-exposed groups compared to clean air (F(1,17)=11.08, p=0.004).

Final results on the complete sample will be available and presented at the time of the congress.

No significant relationships.

Fear is an unpleasant emotional response to perceiving a threat causing physiological changes. Humans feel fear for positive motives, as it plays a crucial role in our survival. Just as the right balance in life is ideal, pathological fear is often described in one of its exaggerations, of having too much. However, lack of fear or “hypophobia” can be just as devastating and debilitating. This can be demonstrated in the analogy between those who feel no pain who also demonstrate increased risk and decreased life expectancy.

The authors aim to explore the concept of fear, discussing currently known physiological mechanisms in order to explain the effects that alterations of these mechanisms can have on fear responses, namely lack of fear, and subsequently the consequence of this on mental health.

A brief non-systematized literature review was performed based on works most pertinent to the topic discussed.

Muted fear responses have been mentioned in the literature, principally associated with medical conditions affecting the physiological fear pathways, including Urbach-Wiethe disease. Amygdala damage provokes abnormal fear reactions and reduced fear experience. This appears to be similar to what is seen in psychopathy, where abnormalities in the limbic system produce abnormal fear responses.

Any extreme can cause havoc on a well-balanced machine. Just as the excess of fear results in mental issues such as anxiety, a lack of fear can also be debilitating. Those demonstrating less fear could help investigators better understand mental health disorders that have been demonstrated to be mediated by similar processes.

No significant relationships.

Electroconvulsive therapy (ECT) is administered following general anaesthetic induction with methohexital, thiopental, etomidate, alfentanil, remifentanil, propofol or ketamine. One approach for idealizing the induction anaesthesia for ECT is combining two agents (e.g. ketamine-propofol) with synergistic anaesthetic properties and non-additive anticonvulsive and hyperdynamic effects.

To establish any superiority between ketamine-propofol (ketofol) combination and etomidate in terms of seizure characteristics and hemodynamic measures.

We have combined our previous case series (etomidate vs thiopental) with new data regarding propofol and ketofol. ECT stimulus duration, stimulus frequency, the stimulus charge applied, duration of central seizure time, number of stimulation trials, plus anaesthetic used in the individual sessions were retrieved. A total number of 1092 sessions (239 sessions with etomidate, 233 with thiopental, 275 with propofol, and 345 with ketofol induction) were included in the linear mixed-effects model analysis.

Etomidate was superior in terms of seizure duration compared with thiopental. There was no significant difference in seizure durations between ketofol, propofol and thiopental, however, number of failed stimulation trials within a session increased significantly with propofol use compared with etomidate and ketofol. The required amount of charge (stimulation dosage) was significantly lower when ketofol was used, compared with thiopental. Additionally, within the ketofol sessions only the propofol dose significantly increased the amount of required dose.

Etomidate and ketofol displayed certain superiorities in terms of seizure characteristics when used as induction anaesthetics for ECT. Therefore, both etomidate and ketamine used in combination with propofol may be considered to be the gold standards of ECT anaesthesia.

No significant relationships.

Late life depression is a major global health issue, with an estimated 7% of older adults suffering from this mental disorder. Depression is one of the most important predictors for suicide in the elderly. However, it is often difficult to recognize and manage, making treatment-resistance a common occurrence. Treatment-resistant depression itself is also a known risk factor for suicide. Recently, non-invasive neuromodulation techniques have been used as a new treatment for depression and suicidality with promising results.

This study aims to investigate the effect of adTMS (accelerated deep Transcranial Magnetic Stimulation) and tDCS (transcranial Direct Current Stimulation) on the suicidality of elderly, therapy-resistant depressed patients. The hypothesis is that suicidal ideation and risk of suicide will decrease after a treatment with adTMS and tDCS.

In this randomized double-blinded sham-controlled clinical trial, geriatric therapy-resistant depressive patients will receive adTMS treatment (See: Figure 1). Suicidality will be assessed before and after the active or sham treatment, through the Columbia Suicide Severity Rating Scale (C-SSRS) and Beck Scale for Suicide Ideation (BSI). After one week of rest, all patients will receive an at-home tDCS treatment for 3 weeks. Likewise, the suicide risk will be estimated before and after the tDCS. During the screening period, the severity of the patients’ depressive symptoms will be determined by using the 17-item Hamilton Depression Rating Scale (HDRS-17). In total, the trial will last for 5 weeks, and suicidality will be examined at five different time points (during screening, at T0, T1, T2 and T3).

Not applicable

Not applicable

No significant relationships.

Insufficient efficacy of conventional treatment of auditory hallucinations (AH) in schizophrenia supports rising interest to brain stimulation techniques including transcranial magnetic stimulation (TMS). Left temporo-parietal cortex (TP3) is involved in emergence of AH, thus neuromodulation of this area might be reasonable.

Comparison of efficacy and tolerability of 2 protocols of TMS (1 Hz and cTBS) over TP3 and sham-TMS for treatment resistant AH in schizophrenia.

76 schizophrenia (ICD-10 - F20) patients with prominent AH (PANSS P3 ≥ 4, AHRS ≥ 15), who had failed to respond to previous antipsychotic treatment, were randomized into 3 groups: 1) 1 Hz TMS (30 patients); 2) cTBS (25 patients); 3) Sham-TMS (21 patients). Sessions were performed 5 days a week for 3 weeks. Antipsychotic medication was continued throughout the study. Patients were assessed weekly with PANSS, AHRS, CDSS, CGI-S by blinded raters. The criterion of efficacy was 30% AHRS score reduction after 3 weeks of treatment.

The number of responders were 13 (43,3%) in 1 Hz TMS group, 14 (56%) – in cTBS group, 4 (19,1%) in sham-TMS group. There was no statistically significant difference in efficacy between 1 Hz TMS and cTBS, but each of the active protocols was more effective than sham-TMS. Treatment was generally well tolerated in all groups, nobody was discontinued the study due to adverse events.

Both protocols of TMS (1 Hz and cTBS) over TP3 are safe and effective in the treatment of schizophrenic patients with pharmacotherapy resistant AH. Further studies are needed.

No significant relationships.

The use of Electroconvulsive therapy (ECT) during pregnancy and in the post-partum period is a critical decision for both providers and their patients. ECT utilization during this critical period needs to be better understood to assess the need and allocate resources for this valuable treatment option.

1) To evaluates baseline characteristics and analyze ECT utilization trends for pregnant and post-partum patients hospitalized in the US. 2) To provide insight into ECT use among inpatient pregnant women with different age groups with various comorbid psychiatric disorders.

The study used the 2002-2015 National (Nationwide) Inpatient Sample (NIS) data. Descriptive statistical and trend analyses were conducted to evaluate data.

A study found that a total of 924 pregnancy-related hospitalizations required ECT treatment; 92.2% of these ECTs were conducted in urban hospitals. The mean age of women was 30.3 years, and the majority (71%) were of the White race. Mood disorders (major depressive disorder- 51.9% and bipolar disorder- 37.9%) accounted for the most common comorbid psychiatric illnesses. The payer source (Medicare/Medicaid vs. Private Insurance) was almost equal (47.9 vs. 46.8). Though not statistically significant, the trend analysis showed that the proportion of ECTs during pregnancy out of the total ECT performed for the year almost doubled (0.24% to 0.47%) from 2008 to 2015.

Though not statistically significant, the use of ECT in pregnant women has increased in 2015 compared to 2002. Results will help clinicians, policymakers, and various stakeholders to optimize ECT utilization, reimbursement and ultimately improve clinical outcomes.

No significant relationships.

The Department of Psychiatry at Semmelweis University is the largest electroconvulsive therapy (ECT) centre in Hungary, where a total number of around 300 treatments are conducted every year. Certain changes were administered in 2018 and 2019 in our logistics and internal protocols that helped to increase the number of treated patients and improve quality of care. The COVID-19 pandemic caused serious disruptions in the Hungarian mental health care system , therefore there was a realistic fear that many patients who required ECT would not receive this form of tretament.

Our goal was to assess the effects of the pandemic on our ECT service, and to analyse whether patients were able to receive treatment, despite the logistical difficulties.

We retrospectively gathered data from our internal documentation to compare the number of ECT treatments with the previous years. We also had to take into account the fluctuation in our general caseload of psychiatric patients, since our Department acted as a COVID-19 treatment centre for several months.

Total number of ECT treatments decreased in 2020 after a peak in 2019, however the numbers were not much lower compared to the years before changes in 2018. Unfortunately, we see a more direct effect of the 3rd wave of the pandemic.

We can conlude that there is a decrease in the number of ECT treatments due to the pandemic, however, the fact that we still provided service in most parts of 2020 and 2021 for patients with the most severe conditions is a serious achivement.

No significant relationships.

Anorexia nervosa has an important burden on both patients and families, with important comorbidities such as depression and obsessive symptoms. These are more resistant to pharmacological treatment than in non-anorexia patients, due to both biological and psychological mechanisms. Electroconvulsive therapy is the best available therapy for treatment resistant depression making it a treatment to consider in treatment resistant depression in anorexia though only case reports exist.

To review the current evidence for electroconvulsive therapy of depression in patients with anorexia nervosa as well as it’s ethical challenges

Non-systematic review of the literature with selection of scientific articles published in the past 10 years; by searching Pubmed and Medscape databases using the combination of MeSH descriptors. The following MeSH terms were used: “electroconvulsive therapy”, “anorexia nervosa”.

Electroconvulsive therapy in anorexia has no controlled trials with mostly case reports available on scientific databases. It presents important challenges due to patient age, medical status and ethical challenges. Even less evidence exist for electroconvulsive therapy in children and adolescents than for adults, anorexia can complicate medical status presenting an anesthetic and life-support challenge and it’s egosyntonicity can place a legal and ethical challenge when patient refuses treatment.

Anorexia has a dramatic burden on patients and families affected, with integrated evidence-based treatment being necessary both for treating the current episode and for remission prevention. Case-reports show that electroconvulsive therapy can play a role on treatment resistant depression in anorexia.

No significant relationships.

Obsessive-compulsive disorder (OCD) is a disabling psychiatric disorder that affects 2-3% of the population. Pharmacological or cognitive behavioral therapy can reduce symptoms. Deep brain stimulation is emerging for treatment-resistant patients.

We measured neuronal activity in two patients with treatment-resistant OCD, who had DBS electrodes implanted bilaterally in the BNST. Local field potentials were recorded directly from the BNST during and without symptom provocation and without electrical stimulation.

In two patients with a diagnosis of treatment resistant OCD (TR-OCD) local field potentials (LFP) were recorded as part of their clinical follow up post-implantation. In both patients, the diagnosis of TR-OCD was confirmed by a neuropsychiatric examination and a multidisciplinary committee comprising both experienced psychiatrists and neurosurgeons from different medical centers in Belgium. We used BrainSense recording technology in the Percept PC to record the LFPs. The LFP recordings in the first patient were acquired on the 15th day after DBS surgery. In the second patient, the interval between implantation and recording was 18 days. Symptom provocation was performed using the MOCCS image set, developed by Mataix-Cols.

At rest, relative power peaks in the BNST were highest in the theta (4-8 Hz) frequency band for both patients. In both patients switching DBS ON during provocation images appears to cause the LFP signal to closely resemble that recorded during neutral images.

The main finding of this pilot study is that switching stimulation ON in the BNST during provocation images causes the LFP signal to more closely resemble the LFP recorded during neutral images.

No significant relationships.

Trans-cranial magnetic stimulation (TMS) as a non-invasive method of altering brain activity (1) has widened the array of therapeutic options available for various psychiatric disorders.

Trans-cranial Magnetic stimulation (TMS) as a non-invasive method of altering brain activity has widened the array of therapeutic options available for various psychiatric disorders. •A large number of studies have shown therapeutic benefits in a wide range of patient population with majority of studies in adults. •TMS is used increasingly for the treatment of child and adolescent depression. •Yet, the scarcity of studies and lack of published guidelines for this population is notable. •As TMS use is expanding in this population, an overview of the use of TMS in children and adolescents with depression may provide much needed and timely perspective on this neuropsychiatric intervention.

We searched all published studies using PubMed database, on TMS use in depressive disorders in children and adolescents. A total of 13 studies were found to have reported use of TMS in depression in children and adolescents.

We found various case series, open label studies as well as sham controlled blind studies indicating that TMS has been effective in treating depression in children and adolescents. No significant side effects were found in our review.

Studies have shown that TMS is an effective treatment option for depressive disorders in children and adolescents. Initial studies look promising but implications in large pediatric population may be different and there is a need for more double blind, controlled trials with larger sample size.

No significant relationships.