Characterization of Psychotropic PRN Medications in a Canadian Psychiatric Intensive Care Unit

Acute effects of military aircraft noise on sedative and analgesic drug administrations in psychiatric patients: A case-time series analysis

BACKGROUND

Existing evidence suggests that psychiatric patients are highly noise sensitive, and that noise exposure increases the risk for adverse mental health outcomes, such as psychiatric hospitalizations and even suicide. To investigate acute effects of noise in this vulnerable population, we assessed short-term associations between fighter jet noise and on-demand sedative and analgesic drug administrations in a psychiatric clinic located close to a military airfield in Switzerland.

METHODS

We applied a case time series analysis with an hourly time resolution using distributed-lag models. Analysis was adjusted for long-term and seasonal trends, day of week, time of day, time-varying weather conditions and the week of stay. Noise exposure (hourly A-weighted equivalent continuous sound pressure levels (LAeq)) was modelled using detailed flight plans and noise footprints for different fighter jet and route combinations. Outcome data were available from the clinic's records.

OUTCOMES

During the study period (06/2016-12/2021), 23,486 flights occurred. 5,968 clinical stays with a median length of 41 days (IQR: 28d, 50d) were recorded. The odds ratio (OR) for medication administration over the lag period of 3 hours after exposure was 1.016 (95 %CI: 1.006, 1.026) per 10 dB LAeq for sedatives and 1.032 (95 %CI: 1.016, 1.048) per 10 dB for analgesics. Effects were larger in multimorbid patients.

INTERPRETATION

Case time series analysis is a novel method to investigate transient associations in observational data while minimizing risk of bias. Using an objectively recorded outcome measure, our results demonstrate that psychiatric patients are a vulnerable population, in which noise exposure can lead to symptom exacerbations and adverse events.

Nurses' use of pro re nata medication in adult acute mental healthcare settings: An integrative review

This integrative review explores the current pro re nata (PRN) medication practice in acute adult mental health settings. PRN medication is commonly used in acute mental health settings but there is lack of evidence of effectiveness of this practice. PRN medications have a number of adverse effects and increase the risk of morbidity in patients with a mental illness. Articles were identified from MEDLINE, CINAHL, Scopus, PubMed, PsycINFO, and Web of Science database. The STROBE critical appraisal tool was used to evaluate the quality of evidence, and inductive thematic analysis was used to extract main themes. Five themes regarding prescription practices, poor documentation, reasons to administer, medication misuse, and insufficient use of non-pharmacological interventions emerged among the 12 eligible articles. The study identified PRN medication practice gaps in adult mental health settings included insufficient documentation practice, underuse of therapeutic non-pharmacological interventions, and significant variability in PRN medication practice across the mental health professionals due to different levels of knowledge and experience.

An Integrative Review on Psychiatric Intensive Care

Psychiatric intensive care units (PICUs) provide care and treatment when psychiatric symptoms and behaviors exceed general inpatient resources. This integrative review aimed to synthesize PICU research published over the past 5 years. A comprehensive search in MEDLINE, PsycINFO, PubMed and Scopus identified 47 recent articles on PICU care delivery, populations, environments, and models. Research continues describing patient demographics, and high rates of challenging behaviors, self-harm, and aggression continue being reported. Research on relatives was minimal. Patients describe restrictive practices incongruent with recovery philosophies, including controlling approaches and sensory deprivation. Some initiatives promote greater patient autonomy and responsibility in shaping recovery, yet full emancipatory integration remains limited within PICU environments. Multidisciplinary collaboration is needed to holistically advance patient-centered, equitable, and integrative PICU care. This review reveals the complex tensions between clinical risk management and emancipatory values in contemporary PICU settings. Ongoing reporting of controlling practices counters the recovery movement progressing in wider mental healthcare contexts. However, care innovations centered on patient empowerment and humane environments provide hope for continued evolution toward more liberation-focused PICU approaches that uphold both patient and provider perspectives.

Characterizing PRN Use of Psychotropic Medications for Acute Agitation in Canadian Long-Term Care Residents with Dementia Before and During COVID-19

Background

Agitation is a disabling neuropsychiatric symptom of dementia. Pro re nata (PRN) injections of psychotropics can be administered for severe acute agitation, but little is known about the frequency of their actual use.

Objective

Characterize actual use of injectable PRN psychotropics for severe acute agitation in Canadian long-term care (LTC) residents with dementia and compare use before and during the COVID-19 pandemic.

Methods

Residents from two Canadian LTC facilities with orders for PRN haloperidol, olanzapine, or lorazepam between January 1, 2018- May 1, 2019 (i.e., pre-COVID-19) and January 1, 2020- May 1, 2021 (i.e., COVID-19) were identified. Electronic medical records were reviewed to document PRN injections of psychotropic medications and collect data on reason and demographic characteristics. Descriptive statistics were used to characterize frequency, dose, and indications of use, and multivariate regression models were used to compare use between time periods.

Results

Of the 250 residents, 45 of 103 (44%) people in the pre-COVID-19 period and 85 of 147 (58%) people in the COVID-19 period with standing orders for PRN psychotropics received ≥1 injections. Haloperidol was the most frequently used agent in both time periods (74% (155/209 injections) pre-COVID-19; 81% (323/398 injections) during COVID-19). Residents in the COVID-19 period were almost two times more likely to receive injections compared with those in the pre-COVID-19 period (odds ratio = 1.96; 95% CI = 1.15-3.34; p = 0.01).

Conclusion

Our results suggest that use of PRN injections increased in LTC during the pandemic and contribute to the mounting evidence that agitation worsened during that time.

Use of a Novel Standardized Administration Protocol Reduces Agitation Pro Re Nata (PRN) Medication Requirements: The Birmingham Agitation Management (BAM) Initiative

BACKGROUND

Agitation management is a principal challenge on inpatient psychiatric units. Overreliance on common prescribing strategies of pro re nata (PRN) medication administration is problematic, given the tendencies to have overlapping or unclear indications.

OBJECTIVE

Piloted project to determine whether a standardized protocol for agitation intervention may reduce PRN medication administration.

METHODS

The Birmingham Agitation Management (BAM) interdisciplinary team uniquely connected the Brøset Violence Checklist (BVC) for assessment of agitation severity to a standardized PRN medication order set. Nurses on the piloted unit were trained on how to score the BVC and administer medications. Patients were assessed by the BVC every 4 hours and, based on their score, would receive no medication, low-dose benzodiazepine, high-dose benzodiazepine, or high-dose benzodiazepine plus antipsychotic. The primary end point compared the number of PRNs administered after novel protocol implementation with a retrospective cohort. Secondary measures included analysis of medication-related effects, seclusion, and physical restraint rates.

RESULTS

377 patients were included in the final analyses (184 pre-BAM, 193 BAM intervention group). No significant differences were seen in patient characteristics between groups. The total number of PRNs administered decreased by 42.5%, with both the mean and median number of administrations decreasing significantly (95% confidence interval [CI] = [1.68-5.75]; P < 0.001). A trend was noted between the number of PRNs administered and seclusion rates, but did not reach statistical significance (95% CI = [-7.28 to 60.31]; P = 0.124).

CONCLUSIONS

In seemingly the first initiative of its kind, we found that a standardized agitation management protocol can help decrease the total number of PRN administrations for agitation without worsening of restraint rates and may possibly reduce the risk of adverse effects. These results require validation in specific, larger populations.