Assessing the validity of the clinician-rated distress thermometer in palliative care

Experiencing and enduring patient distress: the distress of palliative care patients and its emotional impact on physicians in training

BACKGROUND

The extreme vulnerability experienced by patients in palliative care may result in significant distress. These patients require appropriate care while not pathologizing their natural distress. Given the challenges of caring for people experiencing significant distress, it is important to understand what professionals in training may feel when caring for patients in palliative care. Therefore, the aim of this study was to explore how professionals in training feel when confronted with the distress of patients undergoing palliative care.

METHODS

A qualitative study employing interpretative phenomenological analysis was conducted. In 2022, 11 physicians in training were interviewed about their experiences with distressed patients due to palliative care. The interviews were conducted via video conference. The students participated in the national palliative care cross-training and were in their final year of residency training.

RESULTS

The interviews revealed the following five themes: feelings of powerlessness, duty to act, difficulty in building a relationship, feeling insecure about oneself, and creating a space for listening and relating. All participants felt powerless in front of their patient's distress. Numerous defense mechanisms were identified that made the relationship with the patient difficult. Four participants described being able to create a space for listening and relating to their patients.

CONCLUSIONS

A minority of students could establish a quality relationship with their distressed patients. Two concepts, interprofessional education and the patient-centered approach, were identified and could be developed in training.

Psychosocial Distress Screening Among Interprofessional Palliative Care Teams: A Narrative Review

With increased need for palliative care and limited staffing resources, non-social workers are increasingly responsible for screening for urgent psychosocial distress. The National Consensus Project guidelines call for all palliative care team members to be competent in screening across domains. Yet, in contrast to an abundance of evidence-informed tools for palliative social work assessments, standardization for interprofessional psychosocial screening is lacking. This lack of standardized practice may lead to harmful disparities in care delivery. The purpose of this narrative review is to examine current literature on evidence-informed practices for psychosocial screening within palliative care. Google Scholar, a university Summon library search engine, and prominent palliative care journals were searched using the same phrases to locate articles for inclusion. Each article was reviewed and synthesized across common themes. Although an abundance of validated screening tools exists for outpatient oncology-specific settings, there is minimal guidance on psychosocial screening tools intended for specialty palliative care. The most oft-cited tools have been met with concern for validity across diverse palliative care populations and settings. Additional research is needed to operationalize and measure brief psychosocial screening tools that can be validated for use by interprofessional palliative care teams, a stepping-stone for increased equity in palliative care practice.

The effects of foot reflexology on symptoms of discomfort in palliative care: a feasibility study

BACKGROUND

In palliative care, the relief of discomfort is sought by an overall approach, combining prescribed medication and additional therapies, such as foot reflexology (FR). The main objective of this study was to assess the feasibility of FR in a population of inpatients in a palliative care unit (PCU).The precariousness of the patients led us to perform a feasibility study and not a cohort study from the outset. Its secondary objective was to assess the impact of an FR session on some symptoms of discomfort (anxiety, pain, troubled sleep, and psychological distress).

METHODS

This is a feasibility study designed as a randomized controlled two-arm therapeutic trial. One arm tested FR, the other an active control, massage therapy (MT). The evaluators were blinded.

RESULTS

FR was feasible for 14 patients out of the 15 included in the FR group (95% CI [68%; 100%]). These patients were in the palliative care phase of cancer, motor neuron disease, or terminal organ failure. Concerning the symptoms of discomfort, ESAS sleep quality score was on average 3.9 (± 2.5) before a session in the FR group. It was improved to an average of 3 (± 2.3) on the day after the session (effect-size = 0.38 [0.03; 0.73]).

CONCLUSION

This study confirms the feasibility of an FR session for patients hospitalized in a PCU. It resulted in a slight improvement in sleep quality. For other discomfort symptoms such as anxiety, pain and distress, FR yielded a non-significant improvement. Significant results would have needed a larger cohort.

Evaluation of a Routine Psychosocial Screening for Patients Receiving Inpatient Specialist Palliative Care: Feasibility and Outcomes

This prospective one-year cohort study aimed to assess the feasibility and outcomes of a routine psychosocial screening at patients' admittance to specialist inpatient palliative care. Patients admitted to an academic palliative care ward were routinely screened for self-reported distress and psychological morbidity, psychosocial stress factors, and subjective need for help from psychosocial professions. Cognitive impairments were the most common patient barrier to screening. Screenings were completed in 138 of 428 patients (32%). Based on established cutoffs, distress was indicated in 89%, depression in 51%, and anxiety in 50% of these patients. The burden on next-of-kin emerged as the most prevalent stress factor (73%). One-half of the patients disclosed a subjective need for help (53%). Possible depression (p = .023), anxiety (p < .001), and subjective need for help (p < .001) correlated positively with a higher amount of time spent by psychologists and creative arts-based therapists with small to moderate effects. Patients who completed the screening were attributed with a higher amount of time by social workers than patients who did not (p = .004), but there were no relationships between screening results and social work. Results suggest the potential of screenings for the allocation of specialist psychosocial care during specialist palliative care; however, barriers to screening do exist.

Using Vocal Characteristics To Classify Psychological Distress in Adult Helpline Callers: Retrospective Observational Study

BACKGROUND

Elevated psychological distress has demonstrated impacts on individuals' health. Reliable and efficient ways to detect distress are key to early intervention. Artificial intelligence has the potential to detect states of emotional distress in an accurate, efficient, and timely manner.

OBJECTIVE

The aim of this study was to automatically classify short segments of speech obtained from callers to national suicide prevention helpline services according to high versus low psychological distress and using a range of vocal characteristics in combination with machine learning approaches.

METHODS

A total of 120 telephone call recordings were initially converted to 16-bit pulse code modulation format. Short variable-length segments of each call were rated on psychological distress using the distress thermometer by the responding counselor and a second team of psychologists (n=6) blinded to the initial ratings. Following this, 24 vocal characteristics were initially extracted from 40-ms speech frames nested within segments within calls. After highly correlated variables were eliminated, 19 remained. Of 19 vocal characteristics, 7 were identified and validated as predictors of psychological distress using a penalized generalized additive mixed effects regression model, accounting for nonlinearity, autocorrelation, and moderation by sex. Speech frames were then grouped using k-means clustering based on the selected vocal characteristics. Finally, component-wise gradient boosting incorporating these clusters was used to classify each speech frame according to high versus low psychological distress. Classification accuracy was confirmed via leave-one-caller-out cross-validation, ensuring that speech segments from individual callers were not used in both the training and test data.

RESULTS

The sample comprised 87 female and 33 male callers. From an initial pool of 19 characteristics, 7 vocal characteristics were identified. After grouping speech frames into 2 separate clusters (correlation with sex of caller, Cramer's V =0.02), the component-wise gradient boosting algorithm successfully classified psychological distress to a high level of accuracy, with an area under the receiver operating characteristic curve of 97.39% (95% CI 96.20-98.45) and an area under the precision-recall curve of 97.52 (95% CI 95.71-99.12). Thus, 39,282 of 41,883 (93.39%) speech frames nested within 728 of 754 segments (96.6%) were classified as exhibiting low psychological distress, and 71455 of 75503 (94.64%) speech frames nested within 382 of 423 (90.3%) segments were classified as exhibiting high psychological distress. As the probability of high psychological distress increases, male callers spoke louder, with greater vowel articulation but with greater roughness (subharmonic depth). In contrast, female callers exhibited decreased vocal clarity (entropy), greater proportion of signal noise, higher frequencies, increased breathiness (spectral slope), and increased roughness of speech with increasing psychological distress. Individual caller random effects contributed 68% to risk reduction in the classification algorithm, followed by cluster configuration (23.4%), spectral slope (4.4%), and the 50th percentile frequency (4.2%).

CONCLUSIONS

The high level of accuracy achieved suggests possibilities for real-time detection of psychological distress in helpline settings and has potential uses in pre-emptive triage and evaluations of counseling outcomes.

TRIAL REGISTRATION

ANZCTR ACTRN12622000486729; https://www.anzctr.org.au/ACTRN12622000486729.aspx.