Are Repeated Self-Reports of Psychological Variables Feasible for Patients Near the End of Life at a Palliative Care Unit?

Assessment of the quality of end-of-life care: translation and validation of the German version of the "Care of the Dying Evaluation" (CODE-GER) - a questionnaire for bereaved relatives

Background

International studies indicate deficits in end-of-life care that can lead to distress for patients and their next-of-kin.

The aim of the study was to translate and validate the “Care of the Dying Evaluation” (CODE) into German (CODE-GER).

Methods

Translation according to EORTC (European Organisation for Research and Treatment of Cancer) guidelines was followed by data collection to evaluate psychometric properties of CODE-GER. Participants were next-of-kin of patients who had died an expected death in two hospitals. They were invited to participate at least eight, but not later than 16 weeks after the patient’s death. To calculate construct validity, the Palliative care Outcome Scale (POS) was assessed. Difficulty and perceived strain of answering the questionnaire were assessed by a numeric scale (0–10).

Results

Out of 1137 next-of-kin eligible, 317 completed the questionnaire (response rate: 27.9%). Data from 237 main sample participants, 38 interraters and 55 next-of-kin who participated for repeated measurement were analysed. Overall internal consistency, α = 0.86, interrater reliability, ICC (1) = 0.79, and retest-reliability, ICC (1, 2) = 0.85, were good. Convergent validity between POS and CODE-GER, r = −.46, was satisfactory. A principal component analysis with varimax rotation showed a 7-factor solution. Difficulty, M = 2.2; SD ± 2.4, and perceived strain, M = 4.1; SD ± 3.0, of completing the questionnaire were rather low.

Conclusion

The results from the present study confirm CODE-GER as a reliable and valid instrument to assess the quality of care of the dying person. More over our study adds value to the original questionnaire by proposing a deepened analysis of obtained data. The development of seven subscales increases its potential for further surveys and research.

Trial registration

This study was registered retrospectively on the 25th of January 2018 at the German Clinical Trials Register (DRKS00013916).

Sequential use of the Demoralization Scale in palliative care: feasibility, strain, and personal benefits of participation for patients at the end of life

PURPOSE

To determine the efficacy of specifically targeted interventions in palliative care, sequential use of the Demoralization Scale (DS) could be a useful approach. This study's main objective was to evaluate the weekly use of the DS for palliative care inpatients. Secondary objectives were the analysis of the DS, self-perceived strain, and personal benefits of the assessment.

METHODS

Patients admitted to 3 palliative care units (PCUs) were tested for eligibility and asked to complete the DS weekly. Self-perceived strain was rated on a numeric scale (0-10). Open questions about strain and helpfulness of the survey were asked.

RESULTS

Over 10 months, 568 patients were admitted to the PCUs; 193 patients were eligible. A total of 120 patients participated once, of whom only 41 (34.1%) participated at least twice. The mean self-perceived strain caused by the assessment was 1.53 at T1 (N = 117, SD = 2.27, max = 8).

CONCLUSIONS

While the single use of the DS in PCUs seems justified in view of the possibility to detect severe demoralization with overall low to moderate strain and self-perceived helpfulness for patients, the feasibility of the sequential use of the DS has to be regarded critically. Our study undermines the complexity of assessing changes in self-reported psychological phenomena with end-of-life patients at a PCU. The most limiting factors for participating twice were that patients were either discharged from hospital or declined further participation.

Systematic symptom and problem assessment at admission to the palliative care ward - perspectives and prognostic impacts

BACKGROUND

Symptom assessment is essential in palliative care, but holds challenges concerning implementation and relevance. This study aims to evaluate patients' main symptoms and problems at admission to a specialist inpatient palliative care (SIPC) ward using physician proxy- and patient self-assessment, and aims to identify their prognostic impact as well as the agreement between both assessments.

METHODS

Within 12 h after admission, palliative care specialists completed the Symptom and Problem Checklist of the German Hospice and Palliative Care Evaluation (HOPE-SP-CL). Patients either used the new version of the minimal documentation system for patients in palliative care (MIDOS) or the Integrated Palliative Care Outcome Scale (IPOS) plus the Distress Thermometer (DT).

RESULTS

Between 01.01.2016-30.09.2018, 1206 patients were included (HOPE-SP-CL 98%; MIDOS 21%, IPOS 34%, DT 27%) whereof 59% died on the ward. Proxy-assessment showed a mean HOPE-SP-CL Total Score of 24.6 ± 5.9 of 45. Most frequent symptoms/problems of at least moderate intensity were weakness (95%), needs of assistance with activities of daily living (88%), overburdening of family caregivers (83%), and tiredness (75%). Factor analysis identified four symptom clusters (SCs): (1) Deteriorated Physical Condition/Decompensation of Home Care, (2) Emotional Problems, (3) Gastrointestinal Symptoms and (4) Other Symptoms. Self-assessment showed a mean MIDOS Total Score of 11.3 ± 5.3 of 30, a mean IPOS Total Score of 32.0 ± 9.0 of 68, and a mean distress of 6.6 ± 2.5 of 10. Agreement of self- and proxy-assessment was moderate for pain (ƙ = 0.438) and dyspnea (ƙ = 0.503), fair for other physical (ƙ = 0.297 to 0.394) and poor for psychological symptoms (ƙ = 0.101 to 0.202). Multivariate regression analyses for single symptoms and SCs revealed that predictors for dying on the SIPC ward included impaired ECOG performance status, moderate/severe dyspnea, appetite loss, tiredness, disorientation/confusion, and the SC Deteriorated Physical Condition/Decompensation of Home Care.

CONCLUSION

Admissions to a SIPC ward are mainly caused by problems impairing mobility and autonomy. Results demonstrate that implementation of self- and reliability of proxy- and self-assessment is challenging, especially concerning non-physical symptoms/problems. We identified, specific symptoms and problems that might provide information needed for treatment discussions regarding the medical prognosis.

A rapid positive influence of S-ketamine on the anxiety of patients in palliative care: a retrospective pilot study

BACKGROUND

Patients in palliative care need rapid-acting pharmacological options for psychological distress. N-methyl-D-aspartate antagonist ketamine is known to have a fast onset of anti-depressant and anxiolytic action. Its S-enantiomer S-ketamine (or esketamine) is an analgesic used as a routine treatment for refractory pain as an intravenous infusion (0.25 mg/kg over 45 min). This study investigates whether S-ketamine pain therapy has a positive impact on psychological distress caused by anxiety and depression in palliative care.

METHODS

Patient routine data from a palliative care unit of a tertiary care hospital were used in a retrospective analysis after positive ethics approval. Eight patients, who received analgesic S-ketamine treatment, were compared to a control group matched by gender and age. The main analysis was conducted using three-way mixed MANOVA followed by two-way mixed ANOVA. Target variables were the values for anxiety and depression in the state-trait anxiety-depression inventory STADI. The predictor variables were the time of measurement before (T1) and after (T2) S-ketamine application and group membership.

RESULTS

Comparison of the S-ketamine group (n = 8; 4 male, 4 female; average age 52 years) with the control group (n = 8; 3 male, 5 female; average age 55 years) revealed a significant multivariate effect on anxiety and depression F(1, 14) = 4.78; p = 0.046; r = 0.50. The univariate comparisons showed a significant reduction of the anxiety scores from T1 to T2 in the S-ketamine group compared to the control group F(1, 14) = 10.14; p = 0.007; r = 0.65. With regard to depression, there was no significant reduction from T1 to T2 in the group comparison F(1, 14) = 1.60; p = 0.23; r = 0.32. No long-lasting effects on pain were found.

CONCLUSIONS

Our findings show that psychological distress of patients in palliative care may improve after a single administration of S-ketamine, which mainly alleviates anxiety in those patients. Limitations of this study arise from non-randomization, retrospective analysis and low sample size. Therefore, further prospective and ideally randomized studies are necessary.

Evaluation of the palliative symptom burden score (PSBS) in a specialised palliative care unit of a university medical centre - a longitudinal study

Background

The implementation of standardised, valid and reliable measurements in palliative care is subject to practical and methodological challenges. One aspect of ongoing discussion is the value of systematic proxy-based assessment of symptom burden in palliative care. In 2011, an expert-developed proxy-based instrument for the assessment of symptom burden in palliative patients, the Palliative Symptom Burden Score (PSBS), was implemented at the Specialised Palliative Care Unit of the University Medical Centre in Dusseldorf, Germany. The present study investigated its feasibility, acceptance and psychometric properties.

Methods

The PSBS was rated by nursing staff three times a day over 5 years (N = 820 patients). Feasibility and nurses’ acceptance of PSBS were analysed. Structural validity was investigated by principal component analysis. Construct validity was examined via cross-validation with the Hospice and Palliative Care Evaluation checklist. Discriminative validity of the PSBS was analysed by means of Kruskal-Wallis test of patients’ performance score. Reliability of the PSBS was evaluated by internal consistency analysis, test-retest and split-half-reliability. Inter-rater reliability was investigated by observer agreement of nurses’ ratings of symptom burden within a day. Sensitivity to change was analysed by Wilcoxon test with repeated measures of the PSBS before and after palliative complex treatment.

Results

A high degree of acceptance and the feasibility of a high-frequency proxy-based symptom burden assessment approach were demonstrated. There were low rates of missing values and no indications of the adoption of prior ratings. PSBS in its present form demonstrates good structural and construct validity (r_s = .27–.79, p’s < .001) and high sensitivity to changes in symptom burden (p’s < .01, except sweating), but unsatisfactory reliability (α = .41–.67; test-retest: r_{s =} .30–.88; p’s < .001; split-half: r_s = .69; p < .001; inter-rater: n.s.).

Conclusions

The study presents a framework for the post hoc validation of an already existing documentation tool in palliative care. This study supports the notion that PSBS might not be reflective of an overall construct and will therefore require further development and critical comparison to other already established symptom burden instruments in palliative care.