Neurophysiological explorations across the spectrum of psychosis, autism, and depression, during wakefulness and sleep: protocol of a prospective case-control transdiagnostic multimodal study (DEMETER).

BACKGROUND: Quantitative electroencephalography (EEG) analysis offers the opportunity to study high-level cognitive processes across psychiatric disorders. In particular, EEG microstates translate the temporal dynamics of neuronal networks throughout the brain. Their alteration may reflect transdiagnostic anomalies in neurophysiological functions that are impaired in mood, psychosis, and autism spectrum disorders, such as sensorimotor integration, speech, sleep, and sense of self. The main questions this study aims to answer are as follows: 1) Are EEG microstate anomalies associated with clinical and functional prognosis, both in resting conditions and during sleep, across psychiatric disorders? 2) Are EEG microstate anomalies associated with differences in sensorimotor integration, speech, sense of self, and sleep? 3) Can the dynamic of EEG microstates be modulated by a non-drug intervention such as light hypnosis? METHODS: This prospective cohort will include a population of adolescents and young adults, aged 15 to 30 years old, with ultra-high-risk of psychosis (UHR), first-episode psychosis (FEP), schizophrenia (SCZ), autism spectrum disorder (ASD), and major depressive disorder (MDD), as well as healthy controls (CTRL) (N = 21 × 6), who will be assessed at baseline and after one year of follow-up. Participants will undergo deep phenotyping based on psychopathology, neuropsychological assessments, 64-channel EEG recordings, and biological sampling at the two timepoints. At baseline, the EEG recording will also be coupled to a sensorimotor task and a recording of the characteristics of their speech (prosody and turn-taking), a one-night polysomnography, a self-reference effect task in virtual reality (only in UHR, FEP, and CTRL). An interventional ancillary study will involve only healthy controls, in order to assess whether light hypnosis can modify the EEG microstate architecture in a direction opposite to what is seen in disease. DISCUSSION: This transdiagnostic longitudinal case-control study will provide a multimodal neurophysiological assessment of clinical dimensions (sensorimotor integration, speech, sleep, and sense of self) that are disrupted across mood, psychosis, and autism spectrum disorders. It will further test the relevance of EEG microstates as dimensional functional biomarkers. TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT06045897.

Home emergency response team for the seriously ill palliative care patient: feasibility and effectiveness.

OBJECTIVES: To characterise trajectories associated with a new team organisation combining critical care and palliative care approaches at home. METHODS: We describe the pattern of an emergency response team 24/7 directed to patients with advanced illness presenting a distressing symptom at home, who wanted to stay at home and for whom hospitalisation was considered inappropriate by a shared medical decision-making process in an emergency situation. To assess preliminary impact of this Programme, we conducted a descriptive study on all consecutive patients receiving this intervention during the first year (between 6 September 2021 and 5 September 2022). RESULTS: Among the 352 patients included, main advanced illnesses were cancer (41%), dementia (28%) or chronic organ failure (10%). They were critically ill with acute failures: respiratory (52%), neurological (48%) or circulatory (20%). Main distressing symptoms were breathlessness (43%) and pain (17%). Median response time from call to home-visit (IQR) was 140 (90-265) min. Median length of follow-up (IQR) was 4 (2-7) days. Main outcomes were death at home (72%), improvement (19%) or hospitalisation (9%) including three visits to emergency department (1%). CONCLUSIONS: Our study supports that shared decision-making process and urgent care at home are feasible and might prevent undesired hospitalisations.

[Emergency intervention of hospitalisation at home in nursing home during the pandemic period of Covid-19]. / Intervention en urgence de l'hospitalisation à domicile en établissement d'hébergement pour personnes âgées dépendantes pendant la période pandémique de la Covid-19.

BACKGROUND: In the context of the pandemic Covid-19, the Hospitalization A Home (HAH) of the Assistance Publique - Hôpitaux de Paris (APHP) has implemented a new organisation with emergency interventions to meet the needs of residents in palliative care in nursing home. The objective of the study was to describe their clinical characteristics, the modalities of the intervention and their care pathways during the HAH intervention. METHODS: This is a descriptive study on the emergency intervention of the HAH in 74 nursing home in the area of Ile-de-France during one month (April 2020) with a sample of 132 residents. The data collection included the socio-demographic and clinical characteristics of residents and on data about nursing home included. RESULTS: Emergency intervention of the HAH in nursing home involved very elderly residents with severe functional disabilities and with signs of respiratory failure linked to the Covid 19. The intervention took place mainly during the day and the week with a territorial heterogeneity and with a double medical validation between the prescribers and the HAH physician. Seventy per cent of the residents died at their living place. Among nursing home included, they were of medium size, mainly with private status and a large majority had already collaborated with the APHP's HAH. DISCUSSION/CONCLUSION: Emergency intervention of the HAH in nursing home was feasible and responded to an unmeet need for palliative care residents. These results should allow the ongoing development of this new organization for elderly population living in private homes.

Validation of the Cochin Risk Index Score (CRIS) for life expectancy prediction in terminally ill cancer patients.

BACKGROUND: Oncologists often overestimate survival of advanced cancer patients. This study aimed to validate a score for survival prediction in terminally ill cancer patients. METHODS: Between 2004 and 2008, a prospective study was performed in 500 consecutive advanced cancer patients referred to a palliative care unit. Evaluation at admission included physical examination and routine blood tests. On a randomly selected training set, independent factors assessable at inclusion predicting 2-week survival by a multiple logistic regression were assigned integer-rounded weights to develop a risk index score, which was tested on a validation set. RESULTS: On the training set (334 patients), predictive factors were: urea >12 mmol/L (weight = 5, odds ratio (OR) = 3.72, 95% confidence interval (95%CI) = [1.59; 8.71], p = 0.002), Karnofsky Performance Status ≤30% (weight = 4, OR = 3.28, 95%CI = [1.80; 6.01], p < 0.001), leucocytes >15 g/L (weight = 3, OR = 2.49, 95%CI = [1.18; 5.25], p = 0.017), transthyretin ≤0.05 g/L (weight = 3, OR = 2.42, 95%CI = [1.16; 5.04], p = 0.019) and male gender (weight = 2, OR = 2.25, 95%CI = [1.28; 3.97], p = 0.005). On the validation set (166 patients), the Cochin Risk Index Score (CRIS) ≥ 7 identified high-risk patients, with a positive predictive value of 78%. CONCLUSION: We validated the CRIS for survival prediction in terminally ill cancer patients.