[Diseases of the schizophrenia spectrum disorder in old age : Diagnostic and therapeutic challenges]

Medication Dosage Impact on Mortality in Old-Age Individuals with Schizophrenia: A National Cohort Study

As the prevalence of old-age individuals with schizophrenia (OAS) increases in a society undergoing demographic aging, the exploration of medication choices becomes increasingly crucial. Due to the current scarcity of literature on OAS, this study seeks to examine how the utilization and cumulative dosages of psychotropic medications influence both overall and cause-specific mortality risks within this population. A national cohort of 6433 individuals diagnosed with OAS was followed up for 5 years. This study involved comparing the mortality rates associated with low, moderate, and high dosages of antipsychotics, antidepressants, mood stabilizers, and sedative/hypnotic drugs against the 'no exposure' category, based on individual dosages. Cox regression was employed for survival analyses to compare overall mortality and specific-cause mortality across various dosage groups. The exposure variable examined was the dosage of a specific psychotropic medication. Covariates were adjusted accordingly. The analysis revealed that patients on low/moderate antipsychotic doses had improved survival compared to non-exposed individuals. Moderate antipsychotic use corresponded to reduced cardiovascular disease mortality risk. Similarly, those exposed to antidepressants had enhanced survival in low and moderate doses. Sedative-hypnotic exposure was linked to decreased mortality risk in low doses. This study observed that low/moderate antipsychotic doses in older adults with schizophrenia were associated with decreased all-cause mortality, emphasizing the significance of precise medication selection and dosing. It underscores the need for vigilant polypharmacy management and tailored medication strategies in addressing the complexities of treating OAS.

[Current aspects on the antipsychotic treatment of older people with schizophrenia spectrum disorders]

BACKGROUND

From a geriatric perspective, the use of antipsychotic drugs (AP) is associated with significant risks in addition to their known effects. These include unfavorable interactions with geriatric syndromes, such as immobility and risk of falling, and potentially increased mortality, at least in certain patient groups. With reference to this the current state of knowledge on treatment with AP in older people with schizophrenia spectrum disorders is summarized with a focus on the typical multimorbidity of geriatric patients.

METHODS

Narrative review with special consideration of guidelines and consensus papers from German speaking countries and a PubMed-supported literature search for current systematic reviews and meta-analyses.

RESULTS

Antipsychotic agents are an essential part of a comprehensive treatment concept for schizophrenia with well-documented evidence. In geriatric patients adaptations under gerontopharmacological aspects are necessary. A sufficient data basis for evidence-based recommendations for the treatment of multimorbid and frail geriatric patients does not exist.

CONCLUSION

An effective and as safe as possible treatment with AP requires a careful risk-benefit assessment, combined with an individual adaptation regarding the substance applied, dose and treatment duration in an interdisciplinary/multiprofessional context.

Delusional Disorder in Old Age: A Hypothesis-Driven Review of Recent Work Focusing on Epidemiology, Clinical Aspects, and Outcomes

The theme, strength, and duration of a delusion are considered important in distinguishing one psychosis of old age from another. Research results, however, are mostly based on studies conducted on one form of psychosis, namely schizophrenia. The aim of this hypothesis-driven narrative review is to gather clinically important information about the psychosis identified as delusional disorder (DD), as it affects persons of senior age. We hypothesized that DD becomes relatively prevalent in old age, especially in women; and that it is associated with demonstrable brain changes, which, in turn, are associated with cognitive defects and poor pharmacological response, thus increasing the risk of aggression and suicide. Computerized searches in PubMed and ClinicalTrials.gov were conducted using the following search terms: (delusional disorder) AND (elderly OR old OR aged OR psychogeriatrics). A total of 16 recent studies (including case reports) were reviewed. Our hypotheses could not be definitively confirmed because research evidence is lacking. In order to improve eventual outcomes, our literature search demonstrates the need for more targeted, well-designed studies.