Challenges for Consultation–Liaison Psychiatry in the 21st Century

A Cross-Sectional, Retrospective, and Comparative Study between Delirium and Non-Delirium Psychiatric Disorders in a Psychogeriatric Inpatient Population Referred to Consultation-Liaison Psychiatry Unit

Background and objectives: Delirium is the most prevalent psychiatric disorder in inpatient older people. Its presence is associated with higher rates of institutionalization, functional disability and mortality. This study aims to evaluate delirium in a hospitalized psychogeriatric population, focusing on which factors predict the appearance of delirium, the impact it generates and the diagnostic concordance between non-psychiatric physicians and psychiatrists. Material and methods: This is an observational, cross-sectional, retrospective, and comparative study. We obtained data from a sample of 1017 patients (≥65 years) admitted to general hospital and referred from different services to the consultation-liaison psychiatry (CLP) unit. Logistic regression was performed using delirium as the dependent variable. To estimate the concordance of the diagnoses, the Kappa coefficient was used. To assess the impact of delirium, an ordinal regression, Wilcoxon median test and Fisher’s test were performed. Results: Delirium is associated with a higher number of visits, OR 3.04 (95% CI 2.38–3.88), longer length of stay and mortality, OR 2.07 (95% CI, 1.05 to 4.10). The model to predict delirium shows that being >75 years old has an OR of 2.1 (95% CI, 1.59–2.79), physical disability has an OR of 1.66 (95% CI, 1.25–2.20), history of delirium has an OR of 10.56 (95% CI, 5.26–21.18) and no use of benzodiazepines has an OR of 4.24 (95% CI, 2.92–6.14). The concordance between the referring physician’s psychiatric diagnosis and the psychiatrist CLP unit showed a kappa of 0.30. When analysing depression and delirium, the concordance showed Kappa = 0.46. Conclusions: Delirium is a highly prevalent psychiatric disorder, but it is still underdiagnosed, with low diagnostic concordance between non-psychiatric doctors and psychiatrists from CLP units. There are multiple risk factors associated with the appearance of delirium, which must be managed to reduce its appearance.

Diagnostic Agreement between Physicians and a Consultation-Liaison Psychiatry Team at a General Hospital: An Exploratory Study across 20 Years of Referrals

Consultation-liaison psychiatry (CLP) manages psychiatric care for patients admitted to a general hospital (GH) for somatic reasons. We evaluated patterns in psychiatric morbidity, reasons for referral and diagnostic concordance between referring doctors and CL psychiatrists. Referrals over the course of 20 years (2000-2019) made by the CLP Service at Modena GH (Italy) were retrospectively analyzed. Cohen's kappa statistics were used to estimate the agreement between the diagnoses made by CL psychiatrist and the diagnoses considered by the referring doctors. The analyses covered 18,888 referrals. The most common referral reason was suspicion of depression (n = 4937; 32.3%), followed by agitation (n = 1534; 10.0%). Psychiatric diagnoses were established for 13,883 (73.8%) referrals. Fair agreement was found for depressive disorders (kappa = 0.281) and for delirium (kappa = 0.342), which increased for anxiety comorbid depression (kappa = 0.305) and hyperkinetic delirium (kappa = 0.504). Moderate agreement was found for alcohol or substance abuse (kappa = 0.574). Referring doctors correctly recognized psychiatric conditions due to their exogenous etiology or clear clinical signs; in addition, the presence of positive symptoms (such as panic or agitation) increased diagnostic concordance. Close daily collaboration between CL psychiatrists and GH doctors lead to improvements in the ability to properly detect comorbid psychiatric conditions.

EFFECTS OF SYNTHETIC DISEASE-MODIFYING ANTIRHEUMATIC DRUGS, BIOLOGICAL AGENTS, AND PSYCHOPHARMACOTHERAPY ON THE MENTAL DISORDERS IN PATIENTS WITH RHEUMATOID ARTHRITIS

Mental disorders (MDs) of the anxiety-depressive spectrum (ADS) and cognitive impairment (CI) are characteristic of the majority of patients with rheumatoid arthritis (RA); however, the effects of disease-modifying antirheumatic drugs (DMARDs), biological agents (BAs), and their combinations with psychopharmacological drugs (PPDs) on these abnormalities have been insufficiently studied.

 

Objective: to investigate trends in the incidence of MDs in RA patients receiving different treatment regimens.

Subjects and methods. The investigation included 128 RA patients (13% men and 87% women) who fulfilled the 1987 American College of Rheumatology criteria; their mean age was 47.4±0.9 years; the median duration of RA was 96 [48; 228] months. RA activity was found to be high, moderate, and low in 48, 56, and 24 patients, respectively. DAS28 averaged 5.34±0.17. 80% of the patients received DMARDs. MDs were diagnosed based on ICD-10 coding, by using a semi-structured interview and scales, such as the Hospital Anxiety and Depression Scale, the Hamilton Anxiety Scale, and the Montgomery-Asberg Depression Rating Scale. Clinical and psychological procedures were used to diagnose CI. At the study inclusion stage, ADS disorders were detected in 123 (96.1%) patients; CI was found in 88 (68.7%). Forty-one (32.1%) patients were diagnosed with major depression (an obvious or moderate depressive episode), 53 (41.4%) patients had minor depression (a mild depressive episode and dysthymia), and 29 (22.6%) had anxiety disorders (ADs) (adjustment disorders with anxiety symptoms, as well as generalized anxiety disorder). The dynamics of MDs was estimated in 112 (87.5%) of the 128 patients and in 83 (64.8%) at one- and five-year follow-ups, respectively. The following groups were identified according to the performed therapy: 1) synthetic DMARDs (n = 39); 2) synthetic DMARDs + PPDs (n = 43); 3) BAs + DMARDs (n = 32); 4) BAs + DMARDs + PPDs (n = 9).

Results and discussion. In Group 1, the frequency of major depression increased insignificantly from 25% to 32.2 and 33.3% (p = 0.36) at one- and five-year follow-ups, respectively; that of minor depression decreased from 51% to 48.4 (p = 0.5) and 50% (p = 0.6) respectively; the number of patients with ADs declined significantly from 24% to 3.2 (p = 0.018) and 4.2% (p = 0.021), respectively. The frequency of CI rose from 63.5% to 64.5 and 81.8%, respectively (p = 0.12). In Group 2, the frequency of major depression decreased from 43 to 19% (p = 0.049) at one-year follow-up; and none of the patients was found to have ADS disorders at five-year follow-up (p < 0.001); the frequency of minor depression dropped from 38% to 23.8 and 7.1% at one-year (p = 0.35) and five-year (p = 0.002) follow-ups, respectively; the frequency of ADs fell from 19% to 4.8 (p = 0.044) and 0% (p = 0.012), respectively. The frequency of CI decreased insignificantly from 80.9% to 76.2 (p = 0.39) and 61.5% (p = 0.061), respectively. In Group 3 treated with BAs, the frequency of major depression increased statistically insignificantly from 31.2% to 37.9 (p = 0.39) and 42.8% (p = 0.28) at oneand five-year follow-ups, respectively; the frequency of minor depression rose insignificantly from 37.5% to 48.3 (p = 0.28) and 52.4% (p = 0.21), respectively; and that of ADs dropped from 25 to 0% at one-year (p = 0.003) and five-year (p = 0.011) follow-ups. Moreover, the frequency of CI increased from 75% up to 79.3 (p = 0.46) and 90% (p = 0.16) at one- and five-year follow-ups respectively. In Group 4, the frequency of major depression decreased significantly from 66.7 to 22.2% (p = 0.076) and complete regression (p = 0.004) at one- and five-year follow-ups, respectively; that of minor depression increased slightly from 11.1 to 33.3% (p = 0.28) due to the transformation of major depression into minor one at one- and five-year follow-ups, respectively; the frequency of ADs fell from 22.2% to zero at 5 years; and the incidence of CI declined 66.7 to 57.1% (p = 0.54).

Conclusion. Synthetic DMARDs had no effect on the ADS disorders and CI in patients with RA; BAs promoted the regression of ADs and did not affect the progression of depression and CI. A combination of DMARDs and BAs used at the adequate dose of PPDs for the same period led to the regression of ADS disorders and the reduction in the frequency of CI.

Consultation-Liaison Psychiatry-from theory to clinical practice: an observational study in a general hospital

BACKGROUND

To investigate significant association between various clinical and extra-clinical factors brought out the activities of Consultation-Liaison Service.

METHODS

Data from all psychiatric consultations for patients admitted to the Perugia General Hospital and carried out over a 1-year period (from July the 1st 2009 to June the 30th 2010) were collected by a structured clinical report including: socio-demographic features, features of referrals, features of back-referrals. T-test, Mann-Whitney U-test, χ(2)-test and Fischer's were statistically used.

RESULTS

1098 consultations were performed. The consultations carried out the Emergency Unit were excluded from the study. The type and the reasons for the referrals were discussed such as the ICD-10 diagnosis and the liaison interventions too. Significant associations emerged between gender and: social status and occupation (p < 0.05 and p < 0.01 respectively). Clinical sector related with reason for referral (p < 0.01), type of consultation (p < 0.01), liaison investigations (p < 0.01) and long-term treatment plan after hospital discharge (p < 0.01). The ICD-10 psychiatric diagnosis (Schizophrenia, Affective Syndrome and Neurotic-StressSomatoform Syndrome) was associated with social status (p < 0.01), social condition (p < 0.01), consultation type (p < 0.01), advice (p < 0.01) and reason for consultation (p < 0.01).

CONCLUSIONS

The need for better physical and psychological investigation is confirmed in order to promote not only disease remission but overall wellbeing.

Understanding the role of adjunctive nonpharmacological therapies in management of the multiple pathways to depression

Major depressive disorder (MDD) is a common disorder with a lifetime prevalence of 16.2% and the fourth highest cause of disability globally. It is hypothesized to be a syndromatic manifestation of multiple pathological processes leading to similar clinical manifestation. MDD is associated with at least three categories of peripheral hormone-type factors including neurotrophic factors, proinflammatory cytokines, and processes that impair regulation of the hypothalamic-pituitary-adrenocortical axis. Neuroimaging studies have identified functional abnormalities including subcortical systems associated with reward and emotion processing, medial prefrontal and anterior cingulate cortical regions and the lateral prefrontal cortical systems involved in cognitive control and voluntary emotion regulation. Studies investigating the effects of psychotherapy and pharmacotherapy on functional brain measures show normalization of brain function with return to euthymia. Nevertheless, approximately 50% of patients with MDD will not respond sufficiently and 60 to 70% will not achieve full remission with first-line pharmacotherapy, therefore clinicians strive to improve patient responses through the use of adjunct therapies. This review discusses recent research in the various biological processes associated with MDD as well as recent data in support of the use of adjunctive non-pharmacological therapies including psychotherapy, bibliotherapy, Internet therapy, "natural" or herbal approaches, exercise therapy, and somatic therapies.

[Classification of mental disorders in the Intensive Care Unit]

PURPOSE

To determine the incidence and characteristics of mental disorders (MD) in the Intensive Care Unit (ICU), and to define a classification system adapted to the ICU environment.

DESIGN

A retrospective, descriptive analysis.

SETTING

Intensive Care Unit, Arnau de Vilanova Hospital in Lérida (Spain).

PATIENTS

All patients with MD admitted during 5-year period (January, 1 2004 to December 31, 2008).

MAIN VARIABLES

General variables included clinical-demographic data, diagnostic variables, procedures, severity score, length of stay and mortality. Specific variables included psychiatric history, screening for substance abuse, psychiatric assessment, monitoring and transfer to a psychiatric center. Classification of the MD was as follows: 1) acute substance intoxication (SI); 2) suicide attempts (SA); and 3) MD associated with the main diagnosis (AMD).

RESULTS

A total of 146 patients had MD (7.8%); they were predominantly male (74%) and were younger than the general ICU population (43.9 vs. 55.3 years, p<0.001). The ICU stays of the patients with MDs were shorter (4 days vs. 7 days, p<0.001), and there was less hospital mortality (17.1 vs. 25%, p<0.05). They also showed a higher incidence of pneumonia (19.9 vs. 13.8%, p<0.05), but no differences in the level of severity were observed. The SI group (24.7%) contained the highest number of young people; the SA group (36.3%) showed a predominance of women; and the AMD (39%) group had the longest stays and the highest mortality. Psychiatric consultation was carried out mainly in the SA group (62.3%).

CONCLUSIONS

MD is a relatively common problem in the ICU. Collaboration with the Psychiatry Department seldom occurs, but must be encouraged to develop fully integrated management of critical patients with MD.

Models of care for co-occurring mental and medical disorders

In this article we review practice models for treating common mental disorders in primary care. Novel treatment approaches by primary care providers and specialty providers, including collaborative care and telepsychiatric models, show considerable promise. An understanding of remaining barriers to improved care suggests several possible solutions and future directions for outpatient psychosomatic medicine.