Racial and Ethnic Patient Care Disparities in Anesthesiology: History, Current State, and a Way Forward.

Disparities in patient care and outcomes are well-documented in medicine but have received comparatively less attention in anesthesiology. Those disparities linked to racial and ethnic identity are pervasive, with compelling evidence in operative anesthesiology, obstetric anesthesiology, pain medicine, and critical care. This narrative review presents an overview of disparities in perioperative patient care that is grounded in historical context followed by potential solutions for mitigating disparities and inequities.

Lack of Useful Predictors of Dignity-Related Distress Among the Critically Ill as Assessed With the Patient Dignity Inventory.

BACKGROUND: Many intensive care unit patients are awake (ie, alert and engaging in conversation), actively experiencing many facets of their critical care. The Patient Dignity Inventory can be used to elicit sources of distress in these patients. We examined the administrative question as to which awake intensive care unit patients should be evaluated and potentially treated (eg, through palliative care consultation) for distress. Should the decision to screen for distress be based on patient demographics or treatment conditions? METHODS: This was a retrospective cohort study of 155 adult patients from 5 intensive care units of one hospital from 2019 to 2020. Each patient had ≥48 hours without delirium, dementia, or sedation. The Patient Dignity Inventory has 25 items to which patients responded on a 1 (not a problem) to 5 (an overwhelming problem) scale. Multiple complete, stepwise forward, and stepwise backward logistic regression models were created among patient and treatment variables for predicting thresholds of the mean among the 25 items. RESULTS: There were 50% (78/155; 95% confidence interval [CI], 42-58) of patients with significant dignity-related distress (mean score ≥1.60). There were 34% (52/155; CI, 26-42) of patients with severe dignity-related distress (mean score ≥1.92; previously associated with often feeling like wanting to die). Models including combinations of vasopressor medication (protective of distress), tracheostomy (greater risk of distress), and female gender (greater risk of distress) had some predictive value. However, all combinations of potential predictors had misclassification rates significantly >20%. CONCLUSIONS: Identification of subsets of patients with little potential benefit to screening for dignity-related distress would have a reduced workload of palliative care team members (eg, nurses or social workers). Our results show that this is impractical. Given that approximately one-third of critical care patients who are alert and without delirium demonstrate severe dignity-related distress, all such patients with prolonged intensive care unit length of stay should probably be evaluated for distress.

The Patient Dignity Inventory and Dignity-Related Distress among the Critically Ill.

CONTEXT: Critical illness confers a significant risk of psychological distress, both during and after intensive care unit (ICU) admission. The Patient Dignity Inventory is a 25-item instrument initially designed to measure psychosocial, existential and symptom-related distress in terminally ill patients. OBJECTIVES: This study was conducted to validate the inventory as a means of identifying distress in inpatient critical care settings. METHODS: Single-center prospective cohort study of adult patients admitted to one of five ICUs within the University of Pennsylvania Health System for greater than 48 hours from January 2019 to February 2020. Patients completed the inventory in addition to the Patient Health Questionnaire-9 and the Generalized Anxiety Disorder-seven questionnaires. RESULTS: The tool's internal structure was assessed via principal components analysis. 155 participants consented, completed the surveys and were included for analysis. Scores on the inventory showed evidence of internal consistency when used in critical care settings (Cronbach's α=0.95). Moreover, principal components analysis elucidated four themes prevalent in critically-ill patients: Illness-related Concerns, Interactions with Others, Peace of Mind and Dependency. Construct validity was assessed through correlational analysis with depression and anxiety questionnaires. Scores on the inventory appear to be valid for assessing dignity-related psychological concerns in the critical care setting although there is overlap among components and with anxiety and depression scores. CONCLUSIONS: This study demonstrates that the inventory can be used to assess patient distress in critical care settings. Further research may elucidate the role of dignity-based interventions in treating and preventing post-intensive care psychological symptoms.

Endogenous Glucagon-like Peptide-1 Receptor Signaling in the Nucleus Tractus Solitarius is Required for Food Intake Control.

Alhough the glucagon-like peptide-1 (GLP-1) system is critical to energy balance control and is a target for obesity pharmacotherapies, the receptor-population-mediating effects of endogenous GLP-1 signaling are not fully understood. To address this, we developed a novel adeno-associated virus (AAV-GLP-1R) that utilizes short hairpin RNA to chronically knock down GLP-1 receptors (GLP-1R) in rats. As pharmacological studies highlight the hindbrain nucleus tractus solitarius (NTS) as a brain region important for GLP-1R-mediated effects on energy balance, AAV-GLP-1R was injected into the NTS to examine the role of endogenous NTS GLP-1R signaling in energy balance control. Chow intake and meal size were significantly increased following chronic NTS GLP-1R knockdown. In addition, NTS GLP-1R knockdown significantly increased self-administration of palatable food under both fixed and progressive ratio schedules of reinforcement. Collectively, these data demonstrate that endogenous NTS GLP-1R signaling is required for the control of food intake and motivation to feed, and provide a new strategy to investigate the importance of distinct GLP-1R populations in the control of a variety of functions.