Analysis of the Time Interval between the Physician Order for Life-Sustaining Treatment Completion and Death

An Integrative Review of the State of POLST Science: What Do We Know and Where Do We Go?

OBJECTIVES

POLST is widely used in the care of seriously ill patients to document decisions made during advance care planning (ACP) conversations as actionable medical orders. We conducted an integrative review of existing research to better understand associations between POLST use and key ACP outcomes as well as to identify directions for future research.

DESIGN

Integrative review.

SETTING AND PARTICIPANTS

Not applicable.

METHODS

We queried PubMed and CINAHL databases using names of POLST programs to identify research on POLST. We abstracted study information and assessed study design quality. Study outcomes were categorized using the international ACP Outcomes Framework: Process, Action, Quality of Care, Health Status, and Healthcare Utilization.

RESULTS

Of 94 POLST studies identified, 38 (40%) had at least a moderate level of study design quality and 15 (16%) included comparisons between POLST vs non-POLST patient groups. There was a significant difference between groups for 40 of 70 (57%) ACP outcomes. The highest proportion of significant outcomes was in Quality of Care (15 of 19 or 79%). In subdomain analyses of Quality of Care, POLST use was significantly associated with concordance between treatment and documentation (14 of 18 or 78%) and preferences concordant with documentation (1 of 1 or 100%). The Action outcome domain had the second highest positive rate among outcome domains; 9 of 12 (75%) Action outcomes were significant. Healthcare Utilization outcomes were the most frequently assessed and approximately half (16 of 35 or 46%) were significant. Health Status outcomes were not significant (0 of 4 or 0%), and no Process outcomes were identified.

CONCLUSIONS AND IMPLICATIONS

Findings of this review indicate that POLST use is significantly associated with a Quality of Care and Action outcomes, albeit in nonrandomized studies. Future research on POLST should focus on prospective mixed methods studies and high-quality pragmatic trials that assess a broad range of person and health system-level outcomes.

The Medical Orders for Scope of Treatment (MOST) form completion: a retrospective study

Background

Advance care planning (ACP) involves discussions about patient and families’ wishes and preferences for future healthcare respecting autonomy, improving quality of care, and reducing overtreatment. The Medical Orders for Scope of Treatment (MOST) form records person preferred level and types of treatment and intervention.

Purpose

To examine the MOST form use in inpatient units within a British Columbia (Canada) hospital, estimate and compare its completion rate, and inform health policies for continuous, quality and individualized patient care.

Methods

About 5,000 patients admitted to the participating tertiary acute care hospital during October 2020. Data from 780 eligible participants in medical, surgical, or psychiatry unit were analyzed with descriptive statistics, the chi-square test for group comparisons, and logistic regression to assess predictors of the MOST form completion.

Results

Participants’ (54% men) age ranged from 20–97 years (mean = 59.53, SD = 19.54). Mainly physicians (99.1%) completed the MOST form for about 60% of them. A statistically significant difference of MOST completion found among the units [Pearson χ²_{(df=2, n=780)} = 79.53, p < .001, φ = .319]. Multivariate logistic regression analysis demonstrated that age (OR = 1.05, 95% CI 1.04 to 1.06) and unit admission (OR = .60, 95% CI 0.36 to 0.99 in psychiatry; and OR = .21, 95% CI 0.14 to 0.31 in surgery) were independently associated with the MOST form completion.

Conclusion

Our findings demonstrate a need for consistent and broad completion of the MOST form across all jurisdictions using, desirably, advanced electronic systems. Healthcare providers need to raise awareness of the MOST completion benefits and be prepared to discuss topics relevant to end-of-life. Further research is required on the MOST form completion.

Discussing POLST-facilitated hospice care enrollment in patients with terminal cancer

PURPOSE

A multicenter prospective study to evaluate the feasibility of Physician Orders for Life-Sustaining Treatment (POLST) in oncology practice was conducted between June and December 2017. Factors associated with POLST completion and follow-up outcomes were analyzed.

METHODS

Patients with terminal cancer, aged ≥ 20 years and capable of communicating, were enrolled from seven hospitals. Demographic data were collected and updated in February 2021. Descriptive statistics and logistic regression analyses were conducted.

RESULTS

Among 336 patients, 105 (31.3%) completed POLST, which was more common in male (p = 0.029), patients with better performance (p < 0.001), longer duration of follow-up (p = 0.037), and those living with children (p = 0.023). Male (odds ratio [OR], 2.30; 95% confidence interval [CI], 1.17-3.51; p = 0.012), having good performance status (OR, 2.38; 95% CI, (1.35-4.19); p = 0.003), transferred from other departments (OR, 0.50; 95% CI, (0.26-0.98); p = 0.045), and living with children (OR, 1.94; 95% CI, (1.11-3.47); p = 0.020) were significant predictors of POLST completion. Patients who completed POLST were more likely to enroll in hospice care (p = 0.012) or experience out-of-hospital death (p = 0.016) at end-of-life (EOL). POLST completion showed a strong association with hospice enrollment at EOL (OR, 2.61; 95% CI, (1.08-6.32); p = 0.033).

CONCLUSION

Gender, patient performance, timing of POLST discussion, and type of household were associated with POLST completion. Earlier discussions on POLST could reinforce hospice enrollment or non-aggressive EOL care.