Efficacy of antipsychotics in delusional infestation.

BACKGROUND: Data remain scarce for the first-line antipsychotic choice in treating delusional infestation (DI). OBJECTIVES: We evaluated the treatment responses associated with different antipsychotics in DI patients. METHODS: We undertook a multicentre, retrospective observational study using anonymised electronic patient records from two hospitals in the United Kingdom from 1 January 2011 to 1 January 2023. Eligible participants were adults (≥18 years) diagnosed with DI treated with an antipsychotic, and had both an assigned baseline and follow-up Clinical Global Impression Scale (CGI-S) score. The CGI-S is a validated psychiatric research tool. Participants were excluded if they had known limited or non-adherence to an antipsychotic, or if no CGI-S scores were present at follow-up. First clinic visits before the initiation of an antipsychotic were assigned as the baseline CGI-S score. The last available CGI-S score before the patient either changed antipsychotic or left the clinic for any reason was used to assign follow-up CGI-S scores. The primary outcome was the response to each individual antipsychotic treatment, measured by the difference in the baseline and last available follow-up CGI-S scores. Differences in CGI-S changes between antipsychotic episodes were tested by analysis of variance (ANOVA). RESULTS: In total, 414 patient records were analysed, and data were extracted. The mean age was 61.8 years (SD 14.1). One hundred seventy (41%) of 414 patients were men and 244 (59%) were women. In total, 156 (38%) of 414 patients were eligible, yielding a total of 315 antipsychotic prescribing episodes. The ANOVA, ranking in order of treatment response, showed that the highest mean score (expressing highest treatment response) was observed in amisulpride (31 [67%] of 46) and risperidone (95 [57%] of 167), followed by some distance by quetiapine (9 [36%] of 25), aripiprazole (13 [28%] of 46) and olanzapine (7 [25%] of 28). CONCLUSIONS: Amisulpride and risperidone were associated with a higher treatment response than quetiapine, aripiprazole and olanzapine. Amisulpride and risperidone should therefore be considered the first-line treatment options in DI patients.

Risk Factors for Nonattendance in Delusional Infestation: A Multicenter Observational Study.

BACKGROUND: Nonattendance is common among patients suffering from delusional infestation (DI) with a risk factor for poorer patient outcomes. OBJECTIVE: The aim of this study was to determine the incidence rate and predictors of nonattendance among patients presenting to a psychodermatology department with DI and the subsequent effect on the success of prescribing new antipsychotics. METHODS: Data of 265 patients were reviewed of the Amsterdam UMC, the Erasmus University Medical Center, the Royal London Hospital, and the Liverpool School of Tropical Medicine between January 2008 and October 2019. RESULTS: We observed that among the patients who attended the first consultation, 57% (n = 144) did not attend their second visit. Recreational drug use was significantly higher in the nonattendance group compared to the attendance group (25% against 18%). Patients who had a history of previously prescribed antipsychotics at the time of the first consultation were less likely to get prescribed antipsychotics from the psychodermatology departments for DI; however, prescribing antipsychotic drugs by the psychodermatology department did not influence nonattendance significantly. CONCLUSIONS: People suffering from DI are at high risk of nonattendance, even in specialist settings. Patients with current illicit drug use and younger patients are particularly at risk of this.

British Association of Dermatologists guidelines for the management of adults with delusional infestation 2022.

The overall objective of the guideline is to provide up-to-date, evidence-based recommendations for the management of delusional infestation (DI) in adults. Linked Comment: I. Coulson. Br J Dermatol 2022; 187:457.

Longer Duration of Untreated Psychosis is Associated with Poorer Outcomes for Patients with Delusional Infestation.

We examined the association between the duration of untreated psychosis and outcome for patients with delusional infestation. This multi-centre international study included 211 consecutive patients. Illness severity was evaluated at first presentation and outcome was measured with the Clinical Global Impression scale (CGI) at baseline and follow-up. A regression analysis showed a clear clinical and statistically significant association between shorter duration of untreated psychosis and better outcome at follow-up. Patients with a duration of untreated psychosis of less than one year showed a CGI-S change from 5.37 to 2.07; those with a duration of untreated psychosis of 1-5 years a change from 5.48 to 2.59, and those with a duration of untreated psychosis of >5 years a change from 5.59 to 3.37. This difference of 1.1 CGI points between the groups resembles a clinically relevant difference in patient outcome. Our results suggest that longer duration of untreated psychosis in patients with delusional infestation is associated with significantly less favour-able clinical outcomes.

Treatment of Alcohol-Induced Psychotic Disorder (Alcoholic Hallucinosis)-A Systematic Review.

AIMS: To evaluate the effectiveness of evidence based treatments for alcohol-induced psychotic disorder (AIPD) as described by ICD-10 and DSM-5, a condition that is distinct from schizophrenia and has a close relationship with alcohol withdrawal states. METHOD: Systematic review using PRISMA guidelines. RESULTS: Of 6205 abstracts found, fifteen studies and ten case reports met criteria and were examined. Larger studies examined the use of first-generation antipsychotic drugs, reporting full or partial remission in most patients. Newer case reports report similar results using second generation antipsychotic drugs. Novel treatments, such as those acting on GABA receptors reported low numbers of patients in remission. Some large studies report the successful use of standard alcohol withdrawal treatments. CONCLUSION: The findings of our systematic review are inconclusive. There was significant heterogeneity between and within studies. Significant publication bias is likely. Randomized control trials of more carefully delineated samples would produce evidence of greater clinical utility, for example, on differential effectiveness of antipsychotics and optimal length of standard alcohol withdrawal treatments. AIPD patients who show poor treatment responses should be studied in greater depth. SHORT SUMMARY: This systematic review of alcohol-induced psychotic disorder treatment found 15 studies and 10 case reports of relevance. Older studies of first-generation antipsychotics reported full or partial remission in most patients, as did newer studies with second-generation antipsychotics. Novel drugs reported low remission rates. Standard alcohol withdrawal treatments were successful.

Paternalism v. autonomy - are we barking up the wrong tree?

We explore whether we can reduce paternalism by increasing patient autonomy. We argue that autonomy should not have any automatic priority over other ethical values. Thus, balancing autonomy v. other ethical pillars and finding the optimal balance between the patient's wishes and those of other relevant stakeholders such as the patient's family has to be dynamic over time.

Comparison of restraint data from four countries.

BACKGROUND: Previous studies comparing restraint data from different countries had to rely on randomly published data and showed wide variance in the prevalence of restraint between countries. AIM: To systematically compare datasets from four similar European countries with regard to restraint prevalence. METHODS: We analysed whole country or area datasets on restraint from Wales, Ireland, Germany and the Netherlands systematically, thus excluding selection, patient and setting bias. Learning disability (LD) and forensic settings were analysed separately. Differences in proportions between countries were tested by means of Chi square, with number of admissions, admission days and catchment area as denominator and counts of restraint as numerators. RESULTS: Full datasets were obtained allowing calculations of total admissions, total restraint numbers, numbers of patients involved and total occupied bed days. Data for Ireland is from 2012 and from 2013 for the other three countries. The percentage of patients exposed to restraint varies between 4.5 and 9.4 %. The average number of restraints per patient is stable at around 3 in all countries. Patient numbers affected by restraint per 100 occupied bed days per month vary between 0.095 and 0.200. The Netherlands have the highest use of seclusion (79 %), the longest restraint times and low use of enforced medication. Wales the lowest use of seclusion (2 %), followed by Ireland (29 %) and Germany (49 %). Events per 100 admissions per month vary between 17 and 21. Patients affected by restraint per 100 admissions per month vary between 5.4 and 7.5. LD services account for a disproportionately high number of restraint events. CONCLUSION: Patient related restraint data are remarkably similar between countries. Type and length of restraint still vary significantly.

Frequency of delusional infestation by proxy and double delusional infestation in veterinary practice: observational study.

BACKGROUND: Nothing is known about the prevalence of delusional infestation in veterinary practice and the consequences for psychiatrists. AIMS: We attempted to examine the frequency of delusional infestation among pet owners presenting their animals to veterinary clinics. METHOD: We conducted a survey among 32 663 veterinary clinicians who were members of the Veterinary Information Network. RESULTS: The respondents had seen 724 suspected cases of delusional infestation by proxy in a pet. The clients were mainly White, female and 30-60 years old. They presented mainly dogs and cats, and the alleged infestation was mainly with arthropods or worms. Also, 252 clients claimed to be affected themselves; we termed this 'double delusional infestation'. CONCLUSIONS: Delusional infestation is seen frequently in veterinary practice. Psychiatrists need to be aware that patients may have pets they believe are infested.

One-year incidence and prevalence of seclusion: Dutch findings in an international perspective.

BACKGROUND: The Netherlands started a nationwide coercion reduction program in 2007. In 2011, accurate registration of coercive measures became obligatory by law. OBJECTIVE: The aim of this study was to compare number and duration of coercive measures in the Netherlands with international data. METHODS: 2011 data on coercive measures were collected, using a system developed in Germany. To understand determinants of coercion, multilevel logistic regression was performed. RESULTS: 12.0 % (n = 5169) of patients (n = 42.960) in 2011 experienced at least one coercive measure. Exposure to coercion was comparable to other countries, and duration was higher. Medication use seemed to half average times in seclusion. In the Netherlands, coercion mainly constituted of seclusion and occurred in bipolar and psychotic disorders. In Germany, coercion was mostly mechanical restraint and occurred in organic disorders and schizophrenia. CONCLUSIONS: Gathering comprehensive data allows comparisons between countries, increasing our understanding of the impact of different cultures, legislation and health care systems on coercion. In the Netherlands, seclusion is still the main type of coercion, despite significant improvements in the last few years. It is shorter when applied in combination with enforced medication.

Systematic review on the prevalence of lack of capacity in medical and psychiatric settings.

Recent court cases in England and Wales have refocused attention on patients' decision-making capacity to consent. Little is known about the prevalence of incapacity across specialities but decision-making capacity is likely to be overestimated by clinicians. The aim of this systematic review is to estimate the prevalence of incapacity to consent to treatment or admission in different medical and psychiatric settings, and compare the two. We conducted an electronic search following PRISMA principles and included 35 studies in psychiatric and 23 studies in medical settings. The 58 included studies revealed 70 data sets across all settings. For psychiatric settings the weighted average proportion of patients with incapacity was 45% (95% confidence interval (CI) 39-51%). For medical settings, the weighted average proportion of patients with incapacity was 34% (95% CI 25-44%). The two groups are not significantly different from each other in terms of the proportion of incapacity (p=0.92). A considerable number of medical and psychiatric patients lack capacity to make treatment and assessment decisions. Clinicians should be more alert to the possibility that their patients may lack decision-making capacity. Assessment of capacity should be frequent using the appropriate legal frameworks to act in the best interest of patients.

Overvaluing autonomous decision-making.

Current capacity-based legislation and practice overvalues autonomy to the detriment of other ethical principles. A balanced ethical approach would consider the patient's right to treatment, their relationships and interactions with society and not solely the patient's right to liberty and autonomous decision-making.

Comparison of coercive practices in worldwide mental healthcare: overcoming difficulties resulting from variations in monitoring strategies.

BACKGROUND: Coercive or restrictive practices such as compulsory admission, involuntary medication, seclusion and restraint impinge on individual autonomy. International consensus mandates reduction or elimination of restrictive practices in mental healthcare. To achieve this requires knowledge of the extent of these practices. AIMS: We determined rates of coercive practices and compared them across countries. METHOD: We identified nine country- or region-wide data-sets of rates and durations of restrictive practices in Australia, England, Germany, Ireland, Japan, New Zealand, The Netherlands, the USA and Wales. We compared the data-sets with each other and with mental healthcare indicators in World Health Organization and Organisation for Economic Cooperation and Development reports. RESULTS: The types and definitions of reported coercive practices varied considerably. Reported rates were highly variable, poorly reported and tracked using a diverse array of measures. However, we were able to combine duration measures to examine numbers of restrictive practices per year per 100 000 population for each country. The rates and durations of seclusion and restraint differed by factors of more than 100 between countries, with Japan showing a particularly high number of restraints. CONCLUSIONS: We recommend a common set of international measures, so that finer comparisons within and between countries can be made, and monitoring of trends to see whether alternatives to restraint are successful. These measurements should include information about the total numbers, durations and rates of coercive measures. We urge the World Health Organization to include these measures in their Mental Health Atlas.

The use of emergency psychiatric medication: a survey from 21 countries.

The article presents international survey results from experts recruited through the European Violence in Psychiatry Research Group on the use of emergency psychiatric medication for the treatment of violence and aggression. Of 21 countries surveyed, 15 use parenteral haloperidol and lorazepam, 13 use second-generation antipsychotics, and 9 use low-potency antipsychotics. Twelve still use zuclopenthixol. Three countries use intravenous medication. Eleven countries have no guidelines. Only the United Kingdom, Germany, and Bulgaria have national guidelines.

A systematic review and meta-analysis of group psychotherapy for sub-clinical depression in older adults.

OBJECTIVES: Studies investigating the effectiveness of group psychotherapy intervention in sub-threshold depression have shown varying results with differing effect sizes. A systematic review of randomised controlled trials of group psychotherapy in older adults with sub-threshold depression was conducted to present the best available evidence in relation to its effect on depressive symptomatology and the prevention of major depression. METHODS: Systematic search of electronic databases and random effects model for meta-analysis. RESULTS: Four clinical trials met the full inclusion criteria. Group cognitive behavioural therapy (CBT) is an effective intervention for reducing depressive symptoms in older adults with sub-threshold depression in comparison to waiting list. Computerised CBT is at least as effective as group CBT in reducing depressive symptoms. The benefit of group CBT at follow-up is not maintained. Group psychotherapy does not appear to reduce the risk of depressive disorder during follow-up. There are fewer drop outs from group psychotherapy when compared with control conditions. The methodological quality of the studies and their reporting are sub-optimal. CONCLUSIONS: Group psychological interventions in older adults with sub-threshold depression have a significant effect on depressive symptomatology, which is not maintained at follow-up. Group psychotherapy does not appear to reduce the incidence of major depressive disorders.

Percentage prevalence of patient and visitor violence against staff in high-risk UK medical wards.

Patient and visitor violence adversely affects staff and organisations; however, there are few UK data about patient and visitor violence on medical wards. Therefore, we conducted a cross-sectional study using a validated tool (Survey of Violence Experienced by Staff) in six medical wards in three North Wales district general hospitals to assess the prevalence of violence against healthcare staff. A total of 158 staff responded (12 men, 144 women, two not stated). We found that, within the previous 4 weeks, 83% of staff had experienced verbal aggression, 50% had been threatened and 63% had been physically assaulted. Of those assaulted, 56% sustained an injury, with three requiring medical assessment or treatment. Length of experience in the workplace correlated negatively with verbal abuse, but not with threats or assaults. Direct patient contact positively correlated with more overall incidents. There was no correlation between training in aggression management and the experience of incidents. Healthcare support workers and nurses reported a higher prevalence of patient and visitor violence compared with other groups of health worker.

Psychiatry's need for Vergangenheitsbewältigung: 'culture wars', cognitive dissonance and coming to terms with the past.

UK psychiatry's sense of self rests on being part of a socially progressive national tradition. This makes it difficult to engage with more critical narratives. The process of analysing and accepting psychiatry's past can help our profession to get closer to its real self and on a path to a better future.

Aggressive behaviour of psychiatric patients with mild and borderline intellectual disabilities in general mental health care.

PURPOSE: Little is known about the associations between mild intellectual disability (MID), borderline intellectual functioning (BIF) and aggressive behaviour in general mental health care. The study aims to establish the association between aggressive behaviour and MID/BIF, analysing patient characteristics and diagnoses. METHOD: 1174 out of 1565 consecutive in-and outpatients were screened for MID/BIF with the Screener for Intelligence and Learning Disabilities (SCIL) in general mental health care in The Netherlands. During treatment, aggressive behaviour was assessed with the Staff Observation Aggression Scale-Revised (SOAS-R). We calculated odds ratios and performed a logistic and poisson regression to calculate the associations of MID/ BIF, patient characteristics and diagnoses with the probability of aggression. RESULTS: Forty-one percent of participating patients were screened positive for MID/BIF. Patients with assumed MID/BIF showed significantly more aggression at the patient and sample level (odds ratio (OR) of 2.50 for aggression and 2.52 for engaging in outwardly directed physical aggression). The proportion of patients engaging in 2-5 repeated aggression incidents was higher in assumed MID (OR = 3.01, 95% CI 1.82-4.95) and MID/BIF (OR = 4.20, 95% CI 2.45-7.22). Logistic regression showed that patients who screened positive for BIF (OR 2,0 95% CL 1.26-3.17), MID (OR 2.89, 95% CI 1.87-4.46), had a bipolar disorder (OR 3.07, 95% CI 1.79-5.28), schizophrenia (OR 2.75, 95% CI 1.80-4.19), and younger age (OR 1.69, 95% CI 1.15-2.50), were more likely to have engaged in any aggression. Poisson regression underlined these findings, showing a SCIL of 15 and below (ß = 0.61, p<0.001) was related to more incidents. CONCLUSIONS: We found an increased risk for aggression and physical aggression in patients with assumed MID/BIF. We recommend screening for intellectual functioning at the start of treatment and using measures to prevent and manage aggressive behaviour that fits patients with MID/BIF.