Cannabis use linked to aggressive psychiatric crises requiring extended hospitalization

[Profiling involuntarily hospitalized patients according to risk to themselves and/or risk to others].

Fortschritte der Neurologie-Psychiatrie • • Moderately Relevant
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AI Summary

This German study analyzed 2,153 involuntary psychiatric hospital admissions (16.8% of all inpatient cases from 2021-2023) to identify distinct patterns based on whether patients posed a risk to themselves, others, or both. Researchers examined how different risk profiles correlated with patient demographics, diagnoses, coercive measures, and discharge patterns. The findings reveal that psychiatric emergencies require fundamentally different clinical approaches depending on the nature of the danger involved.

Patients hospitalized due to risk to themselves (self-harm) were significantly more likely to have alcohol addiction, depressive episodes, acute stress reactions, and personality disorders. These admissions typically resulted in discharge the following day, suggesting shorter, more acute interventions. In contrast, patients admitted for risk to others showed distinctly different characteristics: they were predominantly male and more frequently had diagnoses involving cannabinoid and stimulant addictions, schizophrenic psychoses, and manic episodes. This group experienced coercive measures and extended involuntary hospitalizations much more frequently.

The study underscores how specific risk profiles should inform prevention and treatment strategies both before, during, and after hospitalization. The distinction between self-directed and other-directed risk based on cannabis use patterns and psychotic disorders has important implications for emergency psychiatric protocols and resource allocation. These findings support more targeted, risk-specific interventions rather than one-size-fits-all approaches to involuntary psychiatric admission.

📄 Original Abstract

Emergency situations can lead to immediate admissions according to mental health act. It has never been investigated within the scope of the Bavarian Mental Health Act, which differences might be associated with specific risk constellations. We therefore grouped patients according to admission due to a risk to themselves, a risk to others, or a combination of both and analysed epidemiological and clinical properties. We used case-based, pseudonymized data from the large hospital in Ansbach and described differences in terms of age, gender, diagnoses, coercive measures, and mode of discharge. 2,153 involuntary admissions accounted for 16.8% of all inpatient cases (n=12,787) from 2021 to 2023. Self-harm was significantly more frequently associated with alcohol addiction, depressive episodes, acute stress reactions, and personality disorders, and more often resulted in discharge the following day. Risk to others was, at the same average age, more frequently associated with male gender, diagnoses within the addiction spectrum involving cannabinoids and stimulants, as well as within the spectrum of schizophrenic psychoses and manic episodes. Coercive measures and prolonged involuntary hospitalizations occurred more frequently. The group with a combination of self-harm and harm to others was used as a means of validating the comparison between the two groups. These distinct characteristics enable specific preventive and therapeutic measures to be implemented both before admission, as well as during, and after inpatient treatment. The results of the pseudonymized analysis confirm the added value of moving away from strictly anonymized data collection at the Bavarian state level. Notfallsituationen können zu einer sofortig-vorläufigen, öffentlich-rechtlichen Unterbringung (ÖRU) führen. Für den Geltungsbereich der Psychisch-Kranken-Hilfegesetzes in Bayern (BayPsychKHG) wurde noch nie untersucht, welche Unterschiede mit den zugrundeliegenden Gefährdungsarten verbunden sind. Deshalb gruppierten wir die Patienten nach Eigen- oder Fremdgefährdung oder aber einer Kombination beider Gründe und analysierten assoziierte epidemiologische und klinische Eigenschaften.Aus fallbasiert pseudonymisierten Daten einer großen, pflichtversorgenden Klinik wurde untersucht, wie sich die Gruppen hinsichtlich Alter, Geschlecht, Diagnosen, Zwangsmaßnahmen und Modus der Beendigung unterscheiden.2153 Aufnahmen unter ÖRU der Klinik für Psychiatrie, Psychotherapie und Psychosomatik Ansbach stellen 16,8% aller vollstationär behandelten Fälle (N=12 787) der Jahre 2021 bis 2023 dar. Gefährdung der eigenen Person ist signifikant häufiger mit Alkoholabhängigkeit, depressiven Episoden, akuten Belastungsreaktionen und Persönlichkeitsstörungen assoziiert und endet häufiger mit Entlassung am Folgetag. Fremdgefährdung ist bei gleichem mittleren Alter häufiger mit männlichem Geschlecht, Diagnosen im Suchtspektrum bezogen auf Cannabinoide und Stimulantien, ferner im Spektrum schizophrener Psychosen, und manischen Episoden verbunden. Es kommt häufiger zu Zwangsmaßnahmen und gerichtlich angeordneten Unterbringungen. Die Gruppe mit kombinierter Eigen- und Fremdgefährdung wurde als Möglichkeit genutzt, den Zweigruppenvergleich durch konservative Annahmen zu überprüfen.Diese differentiellen Eigenschaften machen spezifische präventive und therapeutische Maßnahmen vor der Aufnahme, während und nach der stationären Behandlung möglich. Die Ergebnisse der pseudonymisierten Analyse bestätigen den Mehrwert einer Abkehr von streng anonymisierter Erfassung auf der bayerischen Landeseben.

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