Psychosis Caused by a Somatic Condition: How to Make the Diagnosis? A Systematic Literature Review.

BACKGROUND: First episode of psychosis (FEP) is a clinical condition that usually occurs during adolescence or early adulthood and is often a sign of a future psychiatric disease. However, these symptoms are not specific, and psychosis can be caused by a physical disease in at least 5% of cases. Timely detection of these diseases, the first signs of which may appear in childhood, is of particular importance, as a curable treatment exists in most cases. However, there is no consensus in academic societies to offer recommendations for a comprehensive medical assessment to eliminate somatic causes. METHODS: We conducted a systematic literature search using a two-fold research strategy to: (1) identify physical diseases that can be differentially diagnosed for psychosis; and (2) determine the paraclinical exams allowing us to exclude these pathologies. RESULTS: We identified 85 articles describing the autoimmune, metabolic, neurologic, infectious, and genetic differential diagnoses of psychosis. Clinical presentations are described, and a complete list of laboratory and imaging features required to identify and confirm these diseases is provided. CONCLUSION: This systematic review shows that most differential diagnoses of psychosis should be considered in the case of a FEP and could be identified by providing a systematic checkup with a laboratory test that includes ammonemia, antinuclear and anti-NMDA antibodies, and HIV testing; brain magnetic resonance imaging and lumbar puncture should be considered according to the clinical presentation. Genetic research could be of interest to patients presenting with physical or developmental symptoms associated with psychiatric manifestations.

[Isolation and restraint in units for difficult patients and in psychiatric intensive care units]. / Isolement et contention en unités pour malades difficiles et en unités de soins intensifs psychiatriques.

The units for difficult patients (UMD) and the intensive psychiatric care units (Usip) are psychiatric services that are not successively sectorized, created to meet the needs of intensive care in a closed environment and sometimes of a forensic nature. These two systems are used to care for patients whose clinical condition often makes it too complex to maintain them in sector psychiatric units, and many of their operating rules differ. This is not the case for seclusion and restraint measures and the application of the law governing these measures.

[Soothing in units for difficult patients and in psychiatric intensive care units]. / Apaisement en unités pour malades difficiles et en unités de soins intensifs psychiatriques.

In the units for difficult patients (UMD) and the intensive psychiatric care units (Usip), patients whose mental pathologies have or could generate violent acts which can go as far as committing homicide are taken care of. If, during the psychiatric care of these patients, isolation and restraint measures can be put in place as a last resort, in general it is the symptomatological and behavioral appeasement of these persons that is sought in an alternative way.

[Non-compulsory outpatient care programmes: two clinical illustrations]. / Programmes de soins ambulatoires sans consentement : deux illustrations cliniques.

The act of 5 July 2011 pertaining to the rights and the protection of persons under psychiatric care presents the possibility for compulsory care, without the need for full hospitalisation. Patients can be cared for through partial hospitalisation (day hospital and part-time therapeutic clinic) or in a medical-psychological centre. Treatments and all care are detailed in a care programme. This programme is sent, like all certificates, to the regional health agency and the prefecture in the case of psychiatric care by decision of the State representative, or to the hospital director for psychiatric care at the request of a third party. We propose two clinical vignettes.