Recurrent Depressive Disorder is a chronic condition that significantly impacts the quality of life. Despite various treatment options, some patients face severe and treatment-resistant relapses. This case is related to research on ketamine in Electroconvulsive Therapy (ECT) for RDD. One study highlighted the efficacy and safety of ketamine compared to other anaesthetic agents in ECT for major depression. Additionally, another study explored subanesthetic doses of ketamine before each ECT session to improve therapeutic outcomes and sleep quality in patients with major depressive disorder.

To present a clinical case of a patient with Recurrent Depressive Disorder (RDD) who improved following a change in the Electroconvulsive Therapy (ECT) protocol using ketamine as an anaesthetic inducer.

We examined the patient’s medical records, including her medical history, previous treatments, and therapeutic responses.

A 65-year-old childless woman with a history of stroke, bilateral carotid atheromatosis, and hypothyroidism suffered from RDD. Despite multiple prior treatments and ECT, she experienced a severe depressive relapse. Eight intensive ECT sessions were administered, with observed memory lapses. Due to the lack of response, the anaesthetic inducer etomidate was replaced with ketamine, resulting in a positive response. The patient continued pharmacological treatment with improved mood, but recent and evident memory alterations persisted, possibly related to anterograde amnesia.

This case highlights the complexity of RDD in patients with comorbidities and treatment-resistant relapses. The change in the ECT protocol using ketamine was effective, emphasizing the importance of alternative therapeutic approaches in refractory cases. The successful treatment of RDD in this patient using ketamine in ECT underscores the need for personalized therapeutic options in treatment-resistant patients. These scientific resources reinforce the relevance of exploring therapeutic alternatives in contemporary clinical practice. We need more research to understand the underlying mechanisms and how this approach could be enhanced in similar cases.

None Declared

Schizotypal personality is a condition suffered by 4% of the population. It is defined by presenting interpersonal, behavioral and perceptual features similar to the clinical features of psychotic disorders, such as schizophrenia, in less intensity and dysfunctionality, but at risk of reaching psychosis.

Presentation of a clinical case about a patient with premorbid schizotypal personality traits presenting with an acute psychotic episode.

Literature review on association between schizotypal personality and psychosis.

A 57-year-old woman with a history of adaptive disorder due to work problems 13 years ago, currently without psychopharmacological treatment, goes to the emergency room brought by the emergency services due to behavioral alteration. She reports that “her husband and son wanted to sexually abuse her”, so she had to run away from home and has been running through the streets of the town without clothes and barefoot.

Her husband relates attitude alterations and extravagant behaviors of years of evolution, such as going on diets of eating only bread for 40 days or talking about exoteric and religious subjects, as believing that the devil got inside her husband through a dental implant. He reports that these behaviors have been accentuated during the last month. She has also created a tarot website, and has even had discussions with several users. She is increasingly suspicious of him, has stopped talking to him and stays in his room all day long, with unmotivated laughter and soliloquies.

It was decided to admit him to Psychiatry and risperidone 4 mg was started. At the beginning, she was suspicious and reticent in the interview. As the days went by, communication improved, she showed a relaxed gesture and distanced herself from the delirious ideation, criticizing the episode.

In recent years, there has been increasing interest in understanding the association between schizotypy and serious mental disorder. Several theories understand schizotypy as a natural continuum of personality that reveals genetic vulnerability and that can lead to psychotic disorder when added to precipitating factors. Other theories define schizotypy as a “latent schizophrenia” where symptoms are contained and expressed in less intensity.

Around 20% evolves to paranoid schizophrenia or other serious mental disorders. It is complex to distinguish between those individuals in whom schizotypy is a prodrome and those in whom it is a stable personality trait. To date, studies applying early psychotherapeutic or pharmacological interventions have had insufficient and contradictory results, and the follow-up and treatment of these individuals could be a stress factor and a stigma. Some studies are looking for reliable markers of evolution to schizophrenia in order to establish adequate protocols for detention, follow-up and treatment.

None Declared

Liver cirrhosis, a chronic liver disease, can be closely linked to chronic alcohol abuse, posing a significant medical challenge. Hepatic encephalopathy (HE), a neuropsychiatric condition resulting from liver dysfunction, commonly occurs in cirrhotic patients due to the accumulation of neurotoxic substances like ammonia and manganese in the body. Managing cirrhosis and alcohol addiction is crucial to enhancing the quality of life for these patients, as HE can manifest in various ways and with varying degrees of severity.

To emphasize the importance of recognizing and treating hepatic encephalopathy as a potential complication of liver cirrhosis and sedatives during alcohol withdrawal.

We compiled clinical data, medical history, neuroimaging tests, and therapeutic interventions applied.

A 55-year-old man with a complex medical history, including Child-Pugh B liver cirrhosis, portal hypertension, hypertension, diabetes mellitus, and chronic alcohol abuse with numerous prior hospitalizations for acute pancreatitis and severe head trauma related to alcohol consumption, presented to the emergency department with symptoms of alcohol withdrawal and suicidal thoughts, leading to lorazepam administration and a recommendation for admission to a specialized Therapeutic Community. After 72 hours, he developed hepatic encephalopathy with symptoms such as confusion, sleep disturbance, sweet-smelling breath, abnormal hand movements, conjunctival icterus, and urinary difficulties.

An EEG revealed a globally attenuated and disorganized bioelectrical activity with triphasic waves. The magnetic resonance imaging showed signs of hepato-cerebral degeneration, including T1-weighted hyperintensity in the lentiform and mesencephalic nuclei due to manganese deposition. Treatment was adjusted to reduce sedative use, and therapy with Rifaximin and Lactulose was initiated to control blood ammonia levels. After a week, the patient exhibited significant neurological improvement, underscoring the importance of appropriate management in patients with hepatic encephalopathy related to liver cirrhosis and chronic alcohol abuse.

This case underscores the complexity of HE in patients with liver cirrhosis and alcohol dependence. HE can present in various ways, from subtle symptoms to severe episodes of confusion and coma. Findings on EEG, such as triphasic waves, are characteristic of HE and reflect brain dysfunction. Furthermore, manganese accumulation in the brain, as evidenced by magnetic resonance imaging, may contribute to neurological symptoms in cirrhotic patients. In this context, the early recognition and multidisciplinary treatment are emphasized to improve the quality of life and prevent the progression of this neuropsychiatric complication. EEG and magnetic resonance imaging findings play an essential role in the evaluation of these patients.

None Declared

We present the case of a 48-year-old woman, a nurse, referred from the Internal Medicine department for evaluation of depressive symptoms and accompanying somatic presentation following COVID-19. The aim is to highlight a recently emerging condition that we are increasingly encountering in our clinics, which can complicate the diagnosis of an underlying affective disorder

Diagnosed with COVID-19, confirmed by a positive PCR test, 6 months ago following an infection in the workplace. The clinical picture consisted of mild symptoms, with a ten-day course and apparent resolution at the time of hospitalization. She returned to her work activities and gradually began to report fluctuating symptoms, including headaches, mild shortness of breath, fatigue, as well as a tingling sensation in the upper extremities, especially in the hands. Additionally, she described feelings of restlessness, depressive mood, and intense fatigue. In additional tests: (CT-Scan) there are signs of mild bilateral lower lung fibrosis.

Treatment with Duloxetine was initiated for a case of depressive symptoms with accompanying physical symptoms. The differential diagnosis considered Major Depressive Disorder, Single Episode, and Adjustment Disorder with Depressed Mood.”

We are facing a clear case of depressive clinic that may have endogenous features, if we adhere to criteria such as those in the DSM-5, as it would meet the criteria for Major Depressive Disorder, Single Episode. However, we have a clearly identified trigger, so we also need to perform a differential diagnosis, primarily with Adjustment Disorder with Depressed Mood: here, the symptoms appear within 3 months following the stressful agent (in this case, SARS-CoV-2 infection). Unlike Major Depressive Episode, once the agent has ceased, the symptoms do not persist beyond 6 months (which we do not know because the physical symptoms causing disability have not disappeared).In addition to purely psychiatric diagnoses that we are accustomed to, we must consider a new diagnostic entity that is becoming more prevalent as the pandemic progresses, namely “long-covid” or persistent COVID.These are generally middle-aged women who, several months after infection, continue to manifest a multifactorial complex of symptoms. These symptoms persist over time, not only the classical ones but also many others that can appear during the ongoing course of the disease.

Beyond the purely psychiatric diagnoses we are accustomed to, we must also consider a new diagnostic entity that is becoming more prevalent as the pandemic continues to advance: Persistent COVID or ‘long-COVID.’ Generally, this condition affects middle-aged women who, several months after contracting the virus, continue to exhibit a multifactorial complex of symptoms. The most common symptoms include fatigue/asthenia (95.91%); general discomfort (95.47%); headaches (86.53%); and low mood (86.21%)

None Declared

Men and women with psychosis have different courses and presentations of symptoms. Men with psychosis have an earlier onset of illness, more negative symptoms, and worse premorbid functioning. Women, on the other hand, have better social functioning and less substance abuse. Despite these evident differences, there are few studies that delve into these distinctions, especially from a subjective perspective.

The aim of this study is to understand the differences in the perception of psychosis between men and women.

Five women and five men diagnosed with schizophrenia participated in the study. They were matched so that the age difference between them was no more than 5 years, with ages ranging from 40 to 56 years. Participants had not experienced acute decompensation of their underlying illness and had not required admission to an Acute Care Unit in the 6 months prior to inclusion in the study. Data collection was conducted through the Spanish translation of the Indiana Psychiatric Illness Interview, consisting of five parts: a narrative about their life, a narrative about the illness, questions related to how the illness has changed their life and what has not changed, the overall influence of the illness on their life, and lastly, expectations for the future.

Men expressed more concerns about work (4 men versus 2 women), while women expressed more concerns about not having become mothers (3 out of 5 women, compared to one man). All participants shared experiences of isolation in intimate relationships, including romantic relationships. Regarding stigma, three women believed that people treated them like children and dismissed their opinions. However, two of them viewed this behavior from their loved ones positively. Two women discussed the impact that psychosis and medications had on their bodies and how others had reacted to these changes

The concerns and stigma associated with mental illness differ between genders. These differences should be taken into account when developing specific biopsychosocial treatment plans.

None Declared

Pregnancy is a high-risk period for major affective disorders and can lead to a destabilizing period for our patients. Standard pharmacological strategies must be carefully evaluated due to potential teratogenic or side effects. We present a case of bipolar disorder type I with challenging-to-control maniac episodes during pregnancy, which has required Electroconvulsive Therapy for its management.

Presenting maintenance electroconvulsive therapy (ECT) as a safe and effective therapeutic strategy during pregnancy, with the presentation of a case in which it has been administered every 3 weeks from the second trimester until the baby’s birth at 37 weeks

This concerns a 28-year-old immigrant woman, married, with a 10-year-old child. She was diagnosed with bipolar disorder type I at the age of 16 when she experienced her first manic episode in her country of origin. Subsequently, during her first pregnancy, she required hospitalization for electroconvulsive therapy (ECT) treatment, with a positive response after a single session. She remained stable for several years without maintenance pharmacological treatment or follow-up until the ninth week of her second pregnancy when she experienced a manic episode requiring hospitalization.

She was initially treated with Olanzapine and Lorazepam with a positive response, but three weeks later, she was readmitted with a similar episode. These decompensations occurred almost monthly, leading to the consideration of introducing mood stabilizers after the first trimester. However, due to the patient’s severe hyperemesis gravidarum, this stabilizing treatment was ruled out due to the difficulty in controlling its blood levels and the associated risk of intoxication. During the fifth admission at the 20th week of gestation, the decision was made to initiate ECT treatment, which yielded an excellent response and subsequent maintenance.

The indications for electroconvulsive therapy (ECT) during pregnancy are the same as in the rest of adult patients. In individuals with a psychiatric history, it is possible for a relapse of mental illness to occur during pregnancy, although the risk is considerably higher during the postpartum period. ECT is considered an effective and safe treatment option in all three trimesters of pregnancy and the postpartum period. During the informed consent process, patients should be informed about the potential impact of ECT as well as alternative treatment options.

None Declared

Contrary to classical belief, people affected by this disease are at greater risk of developing organic pathologies.This risk has a very complex origin: a greater exposure to risk factors and specific socioeconomic conditions, a high prevalence of risk behaviors, the use of antipsychotics, and a potential common genetic background. (Reynolds et al.Int. J.Neuropsychopharmacol.2021; 24 854–855, Suvisaari J et al. Curr Diab Rep. 2016 16). Multiple studies demonstrate that Schizophrenia confers a high endogenous risk of Diabetes. Before patients diagnosed with Schizophrenia start taking antipsychotics (Andreassen OA et al. Am J Psychiatry. 2017;174 616-617), they have an approximately 3 times higher risk of developing Diabetes compared to the general population. The risk increases 3.6 times after the initiation of antipsychotic treatment compared to drug naive patients(Annamalai A et al World J Diabetes. 2017 390-396)

To study the association between Schizophrenia or other Psychotic Disorders and Diabetes Mellitus in a sample of patients diagnosed with Schizophrenia or other Psychotic Disorders.

This is a Descriptive and Cross-sectional Observational Study. Clinical Histories were reviewed and a personal or telephone interview was established to expand data related to the objectives of the study. The patients were recruited among the patients seen in the specific Severe Mental Disorder consultation who had a diagnosis of schizophrenia or other Psychotic Disorders, according to DSM 5-TR criteria.

From a sample of 93 patients, 24 had Diabetes. The Prevalence of Diabetes in patients with Schizophrenia or other Psychotic Disorders was 25.8%. Of the patients without a diagnosis of Diabetes, 15 of them had values of Glycosylated Hemoglobin (HbA1c) for Prediabetes. Using the Chi-Square Test, statistically significant differences were found between the variable Main Psychiatric Medication and Diabetes. Patients treated with Clozapine, Aripiprazole and Olanzapine had a Prevalence of Diabetes of 40.9%, 33.3% and 28.5%, respectively.

Prevalence of Diabetes in our sample was 3.4 times higher than the 7.51% of the general population in Spain. This presumes a significant importance and impact on the health of these patients. The diabetic patients in our sample were diagnosed with Diabetes years after the diagnosis of the mental illness, which seems to indicate that the causes have to do with lifestyle, dietary habits, weight, and exposure to chronic antipsychotics. Premature death in schizophrenia has several explanations, being of special importance the development of cardiovascular disorders and Diabetes This can be due to many reasons, but it is worth highlighting the metabolic side effects of some antipsychotics and lifestyle. In this sense, it is essential to carefully monitor this group of patients.

None Declared

Lithium nephropathy can occur in long-term lithium-treated bipolar disorder patients. Key risk factors include duration of lithium exposure, cumulative dose, acute intoxication episodes, advanced age, and comorbidities such as hypertension, diabetes mellitus, hyperparathyroidism, and hyperuricemia, along with concurrent use of antipsychotics. The clinical presentation is gradual, with mild proteinuria, often accompanied by arginine vasopressin resistance. Histological studies show a correlation between interstitial fibrosis and cumulative lithium duration. Approximately 15 to 25 per cent of exposed patients may experience a gradual decline in glomerular filtration rate. The outcome after lithium discontinuation varies.

This case study aims to analyze and document the clinical presentation, diagnosis, and management of lithium nephropathy in a patient with Bipolar Disorder.

We gathered data on the medical history, lab results, and treatment approach for a patient with Bipolar Disorder.

The patient, a 50-year-old woman, had been under the care of Psychiatry since 2008 due to a diagnosis of Bipolar Disorder Type I. During this time, she had experienced depressive and manic episodes but had not presented significant symptom decompensation for the past 14 years, successfully managed with lithium at a current dose of 600 mg per day. However, on this occasion, the patient sought hospitalization due to recent behavioural disturbances, including restlessness, disinhibition, abrupt changes in behaviour, pressured speech, sleep problems, agitation, and aggression. The patient also reported an increased sense of polyuria and polydipsia. Evaluation in the emergency department revealed elevated lithium levels of 1.47 mmol/L and hypokalemia, that justified lithium withdrawal. After lithium levels decreased, an estimated glomerular filtration rate remained low. She was diagnosed with lithium nephropathy, an adverse effect of long-term lithium therapy. Treatment with lithium changed to sodium valproate. Treatment with asenapine started and sustained for two months. Over the following two years, the patient experienced four additional hospital admissions in Psychiatry due to manic episodes.

Long-term lithium therapy can lead to lithium nephropathy with symptoms such as polyuria, polydipsia, and acute kidney failure. Consistent monitoring of patients receiving lithium is crucial to detect potential adverse effects.This case highlights the challenges in managing bipolar patients, as discontinuing lithium exacerbated symptoms despite switching to sodium valproate for nephropathy prevention. Long-term lithium treatment, while effective for bipolar disorder, poses significant renal risks. We emphasize continuous renal function monitoring and assessing the risk-benefit of lithium treatment while actively researching lithium nephropathy and its impact on glomerular function.

None Declared

Hospital readmissions in psychosis are a critical concern, with medication choice playing a vital role. Oral antipsychotics, though common, rely on patient adherence and can lead to relapses if not followed. Long-acting injectable atypical antipsychotics (LAIAs) provide an alternative, ensuring consistent medication release and reducing relapse risk due to missed doses. Studies indicate that LAIAs result in fewer readmissions due to improved adherence. Tailoring treatment to individual needs is essential. Medication choice significantly influences hospital readmission prevention in psychosis. LAIAs, which could offer greater adherence to treatment and symptom control, present a promising option. Individualized treatment decisions are a priority for long-term recovery.

This study aimed to compare the hospital readmission rates within two years post-discharge among two groups of patients diagnosed with schizophrenia and other psychotic disorders who received either oral antipsychotic treatment or LAIAs.

We collected sociodemographic and hospitalization data from 155 patients, 90 receiving oral antipsychotics and 65 receiving LAIAs, following their discharge from a psychiatric unit.

There were 90 patients in the oral treatment group, and 65 in the LAIA group, with 67.6% receiving paliperidone and 26.1% receiving aripiprazole. There were no significant differences in age or gender between the two groups. However, patients in the LAIA group had longer stays in the hospital (M=14.7; SD=10.2 vs M=11.1; SD=6.4; t(153)=2.67; p<.01) and a higher number of prior admissions (M=3.2; SD=3.7 vs M=1.3; SD=3.5; t(153)=2.41; p<.01) compared to the oral antipsychotic group. Additionally, a higher percentage of patients in the LAIA group were diagnosed with schizophrenia (60%) compared to the oral antipsychotic group (24%) (X2 (1, N = 155)= 20.4, p<.01). After two years, readmission rates were 66.6% for the oral antipsychotic group and 61.5% for the LAIA group (X2 (1, N = 155)= 8.5, p > .05). However, the time to readmission was shorter for patients on oral antipsychotics (M=172.4; SD=162.0) compared to those on LAIAs (M=326.2; SD=211.4; t(153)=3.05; p<.01). Notably, 86.6% of patients on oral antipsychotics were readmitted within the first year, while only 52% of those on LAIAs experienced readmission during the same period (X2 (1, N = 155)= 8.5, p = .001).

Long-acting injectable antipsychotics (LAIAs) appear to reduce hospital readmissions, with a more pronounced effect in the first few months post-discharge. However, after two years, the readmission rates between LAIAs and oral antipsychotics become comparable. This data suggests that while LAIAs may reduce early readmissions, their long-term effectiveness is on par with oral antipsychotics.

None Declared

Gynecomastia refers to the abnormal development of breast tissue in males, often posing a concerning symptom. Often, gynecomastia is associated with multiple factors, including the use of various drugs, notably certain atypical antipsychotics. Gynecomastia is a significant side effect that affects the quality of life of male patients taking antipsychotic medications. Among these, risperidone and paliperidone have been identified as the most prone to causing gynecomastia, although aripiprazole has garnered attention for its superior profile in controlling prolactin and gynecomastia. The relationship between these drugs and the development of gynecomastia lies in their ability to elevate prolactin levels, a hormone that regulates reproductive function and is involved in milk production. Several studies have shown that prolactin levels are more commonly elevated with risperidone and paliperidone prescription, thus triggering gynecomastia.

The study aims to investigate the management of gynecomastia in male patients receiving antipsychotic medications.

This research employs a retrospective analysis of patient records to examine the association between specific antipsychotic drugs, prolactin levels, and the development of gynecomastia, while also evaluating the effectiveness of aripiprazole as an alternative treatment.

We present the case of a 21-year-old male with no prior medical history who initiated treatment with oral paliperidone and later switched to 100 mg of long-acting injectable paliperidone once monthly during his initial admission for psychotic symptoms. After six months, he developed gynecomastia, which was ruled out as breast tissue and was determined to be an increase in adipose tissue. Since his hospital discharge, he has gained 25 kg (30%) in body weight, and his baseline prolactin level has decreased. This weight gain, a common side effect of several antipsychotics, was linked to gynecomastia. However, a promising approach for gynecomastia antipsychotic-associated treatment is aripiprazole, which has a milder impact on prolactin levels. In this case, during the next appointment, a switch to 400 mg of long-acting injectable aripiprazole once-monthly was made, which led to weight loss, a reduction in breast size and blood prolactin levels in the following weeks.

The detection and management of gynecomastia in these patients are crucial to improving their quality of life and treatment adherence. This management encompasses changes in medication, hormonal therapy, or surgery in severe cases. Physicians must be aware of this potential complication when prescribing antipsychotics and closely monitor at-risk patients. In summary, antipsychotic-associated gynecomastia in men represents a medical challenge that requires careful attention and an individualized treatment strategy for each affected patient.

None Declared

During cannabis use, some individuals may experience psychotic symptoms, such as unusual perceptions or irrational thoughts, including mild hallucinations or temporary paranoia. Anxiety is also common, characterized by excessive worry or intense fear. The occurrence of these symptoms varies based on cannabis quantity, individual sensitivity, and surroundings. Although not all users experience these effects, the link between cannabis and psychotic or anxiety symptoms highlights the need for a thorough risk assessment.

Our goal is to analyze trends in cannabis use, as well as the psychotic and anxiety symptoms experienced by users, and to examine whether cannabis use is associated with other substances consumption.

We collected demographic and substance consumption data from two groups: 29 individuals aged 18 to 28 who had tried cannabis at least once and 19 regular consumers through a structured questionnaire.

Regular cannabis consumers had a higher proportion of males than those who had tried it once (X²(1)=4.81; p=0.028). There were no significant differences in age, alcohol or tobacco consumption between the groups. Notably, regular cannabis consumers had a history of using other illegal drugs, both in the past and within the last month (X²(1)=8.53; p=0.003). Regarding cannabis effects, regular users more frequently reported sensations like euphoria, relaxation, altered time perception, tachycardia, motor coordination difficulties, and impaired clear thinking compared to one-time users (X²(1)=10.12; p=0.001). Regarding anxiety symptoms during cannabis consumption, both groups experienced a similar frequency. Finally, regular cannabis consumers reported strange ideas or perceptions more often than one-time users (X²(1)=0.743; p=0.019). However, the associated discomfort level was similar in both groups.

This study highlights that regular cannabis use is associated with a greater likelihood of using other substances and experiencing more pronounced effects, including psychotic symptoms. However, it doesn’t necessarily lead to increased anxiety symptoms compared to one-time users. It’s important to acknowledge that the relationship between cannabis and psychosis is intricate and influenced by factors like consumption quantity and individual sensitivity. These findings stress the importance of understanding cannabis’s impact on mental health and its connection to the use of other substances.

None Declared

Epidemiological studies have established a complex relationship between cannabis consumption and a heightened risk of psychotic disorders, including schizophrenia. However, this connection is multifaceted, influenced by genetics, environment, and individual psychology. Surprisingly, despite a surge in emergency room (ER) visits associated with cannabis consumption and psychosis, there haven’t been significant increases in hospital readmissions. This rise in ER visits can be attributed to the increasing social acceptance of cannabis and its legalization in some regions, increasing the likelihood of adverse effects. Furthermore, the higher potency of contemporary cannabis can trigger psychotic reactions, particularly in those consuming elevated levels of THC, its primary psychoactive component.

This study aimed to compare the rates of readmissions and ER visits one year after hospital discharge among patients diagnosed with schizophrenia and other psychotic disorders, stratified by cannabis consumption.

We collected sociodemographic and clinical data from 109 patients after discharge from a psychiatric hospitalization unit.

Patients who consumed cannabis (N=35) were younger than non-consumers (M=31.4; SD=10.0 vs M=44.3; SD=11.4; t(107)=5.71; p<.01), with no significant gender differences, hospital stay durations, or proportions of schizophrenia diagnoses (33.3%). The readmission rates and time to readmission were similar between both groups. Interestingly, 54.2% of cannabis consumers required emergency care (X2 (1, N = 109)= 4.1, p = .04), with 73.6% not needing admission (X2 (1, N = 109)= 5.5, p = .01), in contrast to 33.7% and 56% in the non-consumer group. The time to the first urgent care visit was shorter in the consumer group (M=59.5; SD=56.3) compared to the non-consumer group (M=105.8; SD=93.1; t(107)=1.92; p=.03).

This study reveals that patients with psychosis and cannabis consumption tend to visit ER services more frequently despite utilizing fewer hospital resources like hospitalizations. Notably, despite the increased ER visits, there hasn’t been a corresponding rise in hospital readmissions. These would be due to individuals experiencing cannabis-related psychotic episodes receiving suitable assessment and treatment in the ER, obviating the need for prolonged hospitalization. Furthermore, some psychotic episodes may naturally resolve over time, particularly with reduced or discontinued cannabis consumption. Our result highlights the need for personalized care approaches targeting this group, effectively addressing acute episodes related to cannabis use and psychosis. Addressing this trend requires a multidisciplinary approach involving mental health professionals, addiction specialists, and emergency response teams.

None Declared

Esketamine, an active Ketamine isomeric form that indirectly inhibits the GABAergic neuronal pathways, has been recently approved to treated severe, resistant depressive disorders. Here, we present the case of a 64 years old woman diagnosed with severe, resistant depression and an initial score of 28 points in the Hamilton Depression Rating Scale who was treated with Esketamine with excellent response and a HDRS of 8 points after 4 months.

To expose our experience with the first patient treated with Esketamine in our Hospital.

Describing the patient’s patobiography and the different treatments lines tried in first place and exposing the experience among Ketamine treatment and the final results.

We present the case of a 64 years old woman, divorced and retired, who lives with her son since the aggravation of the depressive symptomatology, with no medical nor surgical background and no history in Mental Health before her first psychiatric internment in 2020. Between February 2020 and June 2023, 5 different treatments options with supervise intake were tried, including increment of the dose, antidepressant rotation, the combination of Desvenlafaxine + Mirtazapine and adding Topiramate and Lithium, with no improvement. Among this years, 3 psychiatric internments were needed because of the depressive symptoms and 1 more hospitalization in Internal Medicine was required because of the patients severe, malnutritional state. In June 2023 and after two complete analysis, a MR and a score of 28 points in the Hamilton Depression Rating Scale treatment with Esketamine was started with no incidences. She described one dissociative episode during which she assures “she was surrounded by soft, rubbery, yellow bubbles”. After 4 months of treatment the patient has recovered her previous functional rate and has an 8 points score in the HDRS.

In conclusion, we can affirm that Esketamine is an effective and secure option for Resistant Depresion Dissorder. Nevertheless, Before considering a Depressive Episode as “resistant to treatment”, treatment adherence and other medical, surgical and psychiatric comorbidities must be studied.

None Declared

The number of hospitalized patients with severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) does not differentiate between patients admitted due to coronavirus disease 2019 (COVID-19) (ie, primary cases) and incidental SARS-CoV-2 infection (ie, incidental cases). We developed an adaptable method to distinguish primary cases from incidental cases upon hospital admission.

Retrospective cohort study.

Data were obtained from 3 German tertiary-care hospitals.

The study included patients of all ages who tested positive for SARS-CoV-2 by a standard quantitative reverse-transcription polymerase chain reaction (RT-PCR) assay upon admission between January and June 2022.

We present 2 distinct models: (1) a point-of-care model that can be used shortly after admission based on a limited range of parameters and (2) a more extended point-of-care model based on parameters that are available within the first 24–48 hours after admission. We used regression and tree-based classification models with internal and external validation.

In total, 1,150 patients were included (mean age, 49.5±28.5 years; 46% female; 40% primary cases). Both point-of-care models showed good discrimination with area under the curve (AUC) values of 0.80 and 0.87, respectively. As main predictors, we used admission diagnosis codes (ICD-10-GM), ward of admission, and for the extended model, we included viral load, need for oxygen, leucocyte count, and C-reactive protein.

We propose 2 predictive algorithms based on routine clinical data that differentiate primary COVID-19 from incidental SARS-CoV-2 infection. These algorithms can provide a precise surveillance tool that can contribute to pandemic preparedness. They can easily be modified to be used in future pandemic, epidemic, and endemic situations all over the world.

INDUCT (Interdisciplinary Network for Dementia Using Current Technology), and DISTINCT (Dementia Inter-sectorial strategy for training and innovation network for current technology) are two Marie Sklodowska-Curie funded International Training Networks that aimed to develop a multi-disciplinary, inter-sectorial educational research framework for Europe to improve technology and care for people with dementia, and to provide the evidence to show how technology can improve the lives of people with dementia.

In INDUCT (2016-2020) 15 Early Stage Researchers worked on projects in the areas of Technology to support everyday life; technology to promote meaningful activities; and healthcare technology. In DISTINCT (2019-2023) 15 Early Stage Researchers worked on technology to promote Social health in three domains: fulfilling ones potential and obligations in society, managing one’s own life, and participation in social and other meaningful activities.

Both networks adopted three transversal objectives: 1) To determine practical, cognitive and social factors needed to make technology more useable for people with dementia; 2) To evaluate the effectiveness of specific contemporary technology; 3) To trace facilitators and barriers for implementation of technology in dementia care.

The main recommendations resulting from all research projects are integrated in a web-based digital Best Practice Guidance on Human Interaction with Technology in Dementia which was recently updated (Dec 2022 and June 2023) and will be presented at the congress. The recommendations are meant for different target groups, i.e. people in different stages of dementia, their (in)formal carers, policy makers, designers and researchers, who can easily find the recommendations relevant to them in the Best Practice Guidance by means of a digital selection tool.

The INDUCT/DISTINCT Best Practice Guidance informs on how to improve the development, usage, impact and implementation of technology for people with dementia in various technology areas. This Best Practice Guidance is the result of intensive collaborative partnership of INDUCT and DISTINCT with academic and non-academic partners as well as the involvement of representatives of the different target groups throughout the projects.

High cognitive activity possibly reduces the risk of cognitive decline and dementia.

To investigate associations between an individual's need to engage in cognitively stimulating activities (need for cognition, NFC) and structural brain damage and cognitive functioning in the Dutch general population with and without existing cognitive impairment.

Cross-sectional data were used from the population-based cohort of the Maastricht Study. NFC was measured using the Need For Cognition Scale. Cognitive functioning was tested in three domains: verbal memory, information processing speed, and executive functioning and attention. Values 1.5 s.d. below the mean were defined as cognitive impairment. Standardised volumes of white matter hyperintensities (WMH), cerebrospinal fluid (CSF) and presence of cerebral small vessel disease (CSVD) were derived from 3T magnetic resonance imaging. Multiple linear and binary logistic regression analyses were used adjusted for demographic, somatic and lifestyle factors.

Participants (n = 4209; mean age 59.06 years, s.d. = 8.58; 50.1% women) with higher NFC scores had higher overall cognition scores (B = 0.21, 95% CI 0.17–0.26, P < 0.001) and lower odds for CSVD (OR = 0.74, 95% CI 0.60–0.91, P = 0.005) and cognitive impairment (OR = 0.60, 95% CI 0.48–0.76, P < 0.001) after adjustment for demographic, somatic and lifestyle factors. The association between NFC score and cognitive functioning was similar for individuals with and without prevalent cognitive impairment. We found no significant association between NFC and WMH or CSF volumes.

A high need to engage in cognitively stimulating activities is associated with better cognitive functioning and less presence of CSVD and cognitive impairment. This suggests that, in middle-aged individuals, motivation to engage in cognitively stimulating activities may be an opportunity to improve brain health.