The need for safeguards in advance care planning

Forms or Free-Text? Measuring Advance Care Planning Activity Using Electronic Health Records

Advance care planning (ACP) discussions seek to guide future serious illness care. These discussions may be recorded in the electronic health record by documentation in clinical notes, structured forms and directives, and physician orders. Yet, most studies of ACP prevalence have only examined structured electronic health record elements and ignored data existing in notes. We sought to investigate the relative comprehensiveness and accuracy of ACP documentation from structured and unstructured electronic health record data sources. We evaluated structured and unstructured ACP documentation present in the electronic health records of 435 patients with cancer drawn from three separate healthcare systems. We extracted structured ACP documentation by manually annotating written documents and forms scanned into the electronic health record. We coded unstructured ACP documentation using a rule-based natural language processing software that identified ACP keywords within clinical notes and was subsequently reviewed for accuracy. The unstructured approach identified more instances of ACP documentation (238, 54.7% of patients) than the structured ACP approach (187, 42.9% of patients). Additionally, 16.6% of all patients with structured ACP documentation only had documents that were judged as misclassified, incomplete, blank, unavailable, or a duplicate of a previously entered erroneous document. ACP documents scanned into electronic health records represent a limited view of ACP activity. Research and measures of clinical practice with ACP should incorporate information from unstructured data.

Perceptions of Patients and Their Families Regarding Limitation of Therapeutic Effort in the Intensive Care Unit

OBJECTIVE

Our objective was to determine and describe the opinion and attitudes of patients and their families regarding the limitation of therapeutic effort and advanced directives in critical patients and whether end-of-life planning occurs. Religious affiliation, education level, and pre-admission quality of life were also evaluated to determine whether they may influence decisions regarding appropriate therapeutic effort.

METHODS

A prospective, observational and descriptive study, approved by the center's ethical committee, was carried out with 257 participants (94 patients and 163 family members) in the intensive care unit (ICU). A questionnaire regarding the opinions of patients and relatives about situations of therapeutic appropriateness in case of poor prognosis or poor quality of life was used. The questionnaire had three sections. In the first section, sociodemographic features were investigated. In the second section, information was collected on the quality of life and functional situation before ICU admission (taking as a reference the situation one month before admission) assessed by the Karnofsky scale, Barthel index, and the PAEEC scale (Project for the Epidemiological Analysis of Critical Care Patients). The third section aimed to determine whether the family knew the patient's opinion regarding his/her end of life.

RESULTS

Of those interviewed, 62.2% would agree to limit treatment in case of poor prognosis or poor quality of future life. In contrast, 37.7% considered that they should fight for life, even if it is irretrievable. Only 1.6% had advanced directives registered, 43.9% of the participants admitted deterioration in their quality of life before ICU admission, 18.2% with moderate-severe deterioration. Our study shows that the higher the educational level, the lower the desire to fight for life when it is irretrievable and the greater the agreement to limit treatment. Besides, those participants not affiliated with a religion were significantly less likely to fight for life, including when irretrievable, than Catholics and were more likely to agree to limit treatment.

CONCLUSIONS

More than half of the participants would agree to limit treatment in the case of a poor prognosis. Our results indicate that patients do not prepare for the dying process well in advance. Religion and educational level were determining factors for the choice of procedures at the end of life, both for patients and their families.

Effects of Implementation of a Standardized Palliative Care Pathway for Patients with Advanced Cancer in a Hospital: A Prospective Pre- and Postintervention Study

CONTEXT

Early integration of oncology and palliative care has been recommended to improve patient outcomes at the end of life. A standardized Palliative Care Pathway, consisting of a structured electronic medical checklist, may support such integration.

OBJECTIVES

We studied the effect of implementation of a Palliative Care Pathway on patients' place of death and advance care planning.

METHODS

We conducted a prospective pre- and postimplementation study of adult patients with cancer from a single hospital who died between February 2014 and February 2015 (pre-implementation period) or between November 2015 and November 2016 (post-implementation period).

RESULTS

We included 424 patients in the pre- and 426 in the post-implementation period. The pathway was started for 236 patients (55%) in the post-implementation period, on average 33 days (IQR 12-73 days) before death. 74% and 77% of the patients died outside hospital in the pre- and post-implementation period, respectively (P = 0.360). When the PCP was initiated, 83% died outside hospital. Bad-news conversations (75% and 62%, P < 0.001) and preferred place of death (47% and 32%, P < 0.001) were more often documented in the pre-implementation period, whereas a DNR-code was more often documented during the post-implementation period (79% and 89%, P < 0.001).

CONCLUSIONS

Implementation of a Palliative Care Pathway had no overall positive effect on place of death and several aspects of advance care planning. Start of a Palliative Care Pathway in the last months of life may be too late to improve end-of-life care. Future research should focus on strategies enabling earlier start of palliative care interventions.

Exploring the cost-effectiveness of advance care planning (by taking a family carer perspective): Findings of an economic modelling study

Advance care planning is considered an important part of high-quality end-of-life care. Its cost-effectiveness is currently unknown. In this study, we explore the cost-effectiveness of a strategy, in which advance care planning is offered systematically to older people at the end-of-life compared with standard care. We conducted decision-analytic modelling. The perspective was health and social care and the time horizon was 1 year. Outcomes included were quality-adjusted life years as they referred to the surviving carers. Data sources included published studies, national statistics and expert views. Average total cost in the advance care planning versus standard care group was £3,739 versus £3,069. The quality-adjusted life year gain to carers was 0.03 for the intervention in comparison with the standard care group. Based on carer's health-related quality-of-life, the average cost per quality-adjusted life year was £18,965. The probability that the intervention was cost-effective was 55% (70%) at a cost per quality-adjusted life year threshold of £20,000 (£30,000). Conducting cost-effectiveness analysis for advance care planning is challenging due to uncertainties in practice and research, such as a lack of agreement on how advance care planning should be provided and by whom (which influences its costs), and about relevant beneficiary groups (which influences its outcomes). However, even when assuming relatively high costs for the delivery of advance care planning and only one beneficiary group, namely, family carers, our analysis showed that advance care planning was probably cost-effective.

Enhancing Advance Care Planning Communication: An Interactive Workshop With Role-Play for Students and Primary Care Clinicians

INTRODUCTION

Increased clinician training on advance care planning (ACP) is needed. Common barriers to ACP include perceived lack of confidence, skills, and knowledge necessary to engage in these discussions. Furthermore, many clinicians feel inadequately trained in prognostication. Evidence exists that multimodality curricula are effective in teaching ACP and can be simultaneously targeted to trainees and practicing clinicians with success.

METHODS

We developed a 3-hour workshop incorporating lecture, patient-oriented decision aids, prognostication tools, small-group discussion, and case-based role-play to communicate a values-based approach to ACP. Cases included discussion of care goals for a patient with severe chronic obstructive pulmonary disease and one with mild cognitive impairment. The workshop was delivered to fourth-year medical students, then adapted in two primary care clinics. In the clinics, we added an interprofessional case applying ACP to management of dental pain in advanced dementia. We evaluated the workshops using pre-post surveys.

RESULTS

Thirty-four medical students and 14 primary care providers participated. Self-reported knowledge and comfort regarding ACP significantly improved; attitudes toward ACP were strongly positive both before and after. The workshop was well received. On a 7-point Likert scale (1 = unacceptable, 7 = outstanding), the median overall rating was 6 (excellent).

DISCUSSION

We developed an ACP workshop applicable to students and primary clinicians and saw improvements in self-reported knowledge and comfort regarding ACP. Long-term effects were not studied. Participants found the role-play especially valuable. Modifications for primary care clinics focused on duration rather than content. Future directions include expanding the workshop's content.

Advance Care Planning: Promoting Effective and Aligned Communication in the Elderly (ACP-PEACE): the study protocol for a pragmatic stepped-wedge trial of older patients with cancer

INTRODUCTION

Advance care planning (ACP) is associated with improved health outcomes for patients with cancer, and its absence is associated with unfavourable outcomes for patients and their caregivers. However, older adults do not complete ACP at expected rates due to patient and clinician barriers. We present the original design, methods and rationale for a trial aimed at improving ACP for older patients with advanced cancer and the modified protocol in response to changes brought by the COVID-19 pandemic.

METHODS AND ANALYSIS

The Advance Care Planning: Promoting Effective and Aligned Communication in the Elderly study is a pragmatic, stepped-wedge cluster randomised trial examining a Comprehensive ACP Program. The programme combines two complementary evidence-based interventions: clinician communication skills training (VitalTalk) and patient video decision aids (ACP Decisions). We will implement the programme at 36 oncology clinics across three unique US health systems. Our primary outcome is the proportion of eligible patients with ACP documentation completed in the electronic health record. Our secondary outcomes include resuscitation preferences, palliative care consultations, death, hospice use and final cancer-directed therapy. From a subset of our patient population, we will collect surveys and video-based declarations of goals and preferences. We estimate 11 000 patients from the three sites will be enrolled in the study.

ETHICS AND DISSEMINATION

Regulatory and ethical aspects of this trial include Institutional Review Board (IRB) approval via single IRB of record mechanism at Dana-Farber Cancer Institute, Data Use Agreements among partners and a Data Safety and Monitoring Board. We plan to present findings at national meetings and publish the results.

TRIAL REGISTRATION NUMBER

NCT03609177; Pre-results.

Acceptability of Paper-Based Advance Care Planning (ACP) to Inform End-of-Life Care Provision for Community Dwelling Older Adults: A Qualitative Interview Study

This paper reports the findings from a study to investigate health care professionals’ views regarding the use and acceptability of two similar paper-based advance care planning (ACP) documents designed for older adults in their last year of life to inform end-of-life care provision. Participants’ views of using PEACE (Proactive Elderly Persons Advisory Care), a nurse led model with community geriatrician oversight, and PACe (proactive anticipatory care plan), a general practitioner (GP) led model implemented by two clinical commissioning groups (CCGs) as part of a wider pilot to determine their ability to improve end-of-life care provision, were explored. Hospital admission avoidance matrons took part in face to face interviews and care staff employed in private residential care homes took part in individual telephone interviews to explore their views of using the PEACE tool. Telephone interviews were conducted with GPs to explore their views of PACe. GPs and admission avoidance matrons were employed by CCGs and all study participants were recruited from the South East of England, where data collection took place in 2015. The data were analysed thematically. Findings from the study demonstrate how both tools provide a focus to ACP discussions to inform individual end-of-life care preferences. The importance of relationships was a pivotal theme established, trusting inter-professional relationships to enable multidisciplinary teamwork and a prior relationship with the older person (or their proxy in the case of cognitive impairment) to enable such conversations in the first place. Both tools enabled participants to think critically and reflect on their own practice. Notwithstanding participants’ views to improve their layout, using a paper-based approach to deliver streamlined ACP and end-of-life care was a theme to emerge as a potential barrier, and highlighted problems with accessing paper-based documentation, accuracy and care co-ordination in the context of multidisciplinary team working. The value of technology in overcoming this barrier and underpinning ACP as a means to help simplify service provision, promote integrated professional practice and provide seamless care, was put forward as a way forward.

The Voice Is As Mighty As the Pen: Integrating Conversations into Advance Care Planning

Advance care planning allows patients to articulate preferences for their medical treatment, lifestyle, and surrogate decision-makers in order to anticipate and mitigate their potential loss of decision-making capacity. Written advance directives are often emphasized in this regard. While these directives contain important information, there are several barriers to consider: veracity and accuracy of surrogate decision-makers in making choices consistent with the substituted judgement standard, state-to-state variability in regulations, literacy issues, lack of access to legal resources, lack of understanding of medical options, and cultural disparities. Given these issues, it is vital to increase the use of patient and healthcare provider conversations as an advance care planning tool and to increase integration of such discourse into advance care planning policy as adjuncts and complements to written advance directives. This paper reviews current legislation about written advance directives and dissects how documentation of spoken interactions might be integrated and considered. We discuss specific institutional policy changes required to facilitate implementation. Finally, we explore the ethical issues surrounding the increased usage and recognition of clinician-patient conversations in advance care planning.

New frontier: cancer pain management clinical fellowship

Cancer pain is a multi-dimensional experience, varies from person to person both physically and psycho-socially, and impacts all aspects of the patients' quality of life. Majority of patients with an advanced or metastatic cancer will experience pain. It is estimated that as many as half of cancer patients are under-treated and as many as 20% experience pain refractory to the conventional WHO ladder of pain management. The McGill University Health Centre (MUHC) Cancer Pain Clinic (CPC) was created to meet the needs of those patients with a diagnosis of cancer whose pain had become a main symptom and those who failed to respond to conventional treatment. The clinic offers a unique interdisciplinary approach with a core team that includes an anesthesiologist, a palliative care physician, a radiation oncologist, a nurse clinician specialist in oncology and palliative care, and, recently, also an interventional radiologist. A cancer pain clinical fellowship was offered for the first time in July 2016. It provides intense training in the classification, epidemiology, pathophysiology, and treatment of cancer pain. Through our education program, the fellow learns to appreciate, weigh, and respond to the full spectrum of factors influencing a specific patient's condition and to develop a tailor-made care plan. To our knowledge, it is the only fellowship program in existence that focuses exclusively on cancer pain. We see it as a beacon and hope that our graduate fellows become professional leaders with a quest not only to provide the best possible care but also to raise awareness of the humanitarian need to control cancer pain.

Challenges in implementing an advance care planning programme in long-term care

BACKGROUND

A high prevalence of cognitive impairment and frailty complicates the feasibility of advance care planning in the long-term-care population. Research aim: To identify challenges in implementing the 'Let Me Decide' advance care planning programme in long-term-care.

RESEARCH DESIGN

This feasibility study had two phases: (1) staff education on advance care planning and (2) structured advance care planning by staff with residents and families. Participants and research context: long-term-care residents in two nursing homes and one community hospital. Ethical considerations: The local research ethics committee granted ethical approval.

FINDINGS

Following implementation, over 50% of all residents had completed some form of end-of-life care plan. Of the 70 residents who died in the post-implementation period, 14% had no care plan, 10% (with capacity) completed an advance care directive and lacking such capacity, 76% had an end-of-life care plan completed for them by the medical team, following discussions with the resident (if able) and family. The considerable logistical challenge of releasing staff for training triggered development of an e-learning programme to facilitate training.

DISCUSSION

The challenges encountered were largely concerned with preserving resident's autonomy, avoiding harm and suboptimal or crisis decision-making, and ensuring residents were treated fairly through optimisation of finite resources.

CONCLUSIONS

Although it may be too late for many long-term-care residents to complete their own advance care directive, the ' Let Me Decide' programme includes a feasible and acceptable option for structured end-of-life care planning for residents with variable capacity to complete an advance care directive, involving discussion with the resident (to the extent they were able) and their family. While end-of-life care planning was time-consuming to deliver, nursing staff were willing to overcome this and take ownership of the programme, once the benefits in improved communication and enhanced peace of mind among all parties involved became apparent in practice.

Development and psychometric evaluation of the Decisional Engagement Scale (DES-10): A patient-reported psychosocial survey for quality cancer care

In light of recent health care reforms, we have provided an illustrative example of new opportunities available for psychologists to develop patient-reported measures related to health care quality. Patient engagement in health care decision making has been increasingly acknowledged as a vital component of quality cancer care. We developed the 10-item Decisional Engagement Scale (DES-10), a patient-reported measure of engagement in decision making in cancer care that assesses patients' awareness of their diagnosis, sense of empowerment and involvement, and level of information seeking and planning. The National Institutes of Health's ResearchMatch recruitment tool was used to facilitate Internet-mediated data collection from 376 patients with cancer. DES-10 scores demonstrated good internal consistency reliability (α = .80), and the hypothesized unidimensional factor structure fit the data well. The reliability and factor structure were supported across subgroups based on demographic, socioeconomic, and health characteristics. Higher DES-10 scores were associated with better health-related quality of life (r = .31). In concurrent validity analyses controlling for age, socioeconomic status, and health-related quality of life, higher DES-10 scores were associated with higher scores on quality-of-care indices, including greater awareness of one's treatments, greater preferences for shared decision making, and clearer preferences about end-of-life care. A mini-measure, the DES-3, also performed well psychometrically. In conclusion, DES-10 and DES-3 scores showed evidence of reliability and validity, and these brief patient-reported measures can be used by researchers, clinicians, nonprofits, hospitals, insurers, and policymakers interested in evaluating and improving the quality of cancer care. (PsycINFO Database Record

Does facilitated Advance Care Planning reduce the costs of care near the end of life? Systematic review and ethical considerations

BACKGROUND

While there is increasing evidence that Advance Care Planning has the potential to strengthen patient autonomy and improve quality of care near the end of life, it remains unclear whether it could also reduce net costs of care.

AIM

This study aims to describe the cost implications of Advance Care Planning programmes and discusses ethical conflicts arising in this context.

DESIGN

We conducted a systematic review based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement.

DATA SOURCES

We systematically searched the databases PubMed, NHS EED, EURONHEED, Cochrane Library and EconLit. We included empirical studies (no limitation to study type) that investigated the cost implications of Advance Care Planning programmes involving professionally facilitated end-of-life discussions.

RESULTS AND DISCUSSION

Seven studies met our inclusion criteria. Four of them used a randomised controlled design, one used a before-after design and two were observational studies. Six studies found reductions in costs of care ranging from USD1041 to USD64,827 per patient, depending on the study period and the cost measurement. One study detected no differences in costs. Studies varied considerably regarding the Advance Care Planning intervention, patient selection and costs measured which may explain some of the variations in findings.

NORMATIVE APPRAISAL

Looking at the impact of Advance Care Planning on costs raises delicate ethical issues. Given the increasing pressure to reduce expenditures, there may be concerns that cost considerations could unduly influence the sensitive communication process, thus jeopardising patient autonomy. Safeguards are proposed to reduce these risks.

CONCLUSION

The limited data indicate net cost savings may be realised with Advance Care Planning. Methodologically robust trials with clearly defined Advance Care Planning interventions are needed to make the costs and returns of Advance Care Planning transparent.

Advance care planning and end-of-life decision making in dialysis: a randomized controlled trial targeting patients and their surrogates

BACKGROUND

Few trials have examined long-term outcomes of advance care planning (ACP) interventions. We examined the efficacy of an ACP intervention on preparation for end-of-life decision making for dialysis patients and surrogates and for surrogates' bereavement outcomes.

STUDY DESIGN

A randomized trial compared an ACP intervention (Sharing Patient's Illness Representations to Increase Trust [SPIRIT]) to usual care alone, with blinded outcome assessments.

SETTING & PARTICIPANTS

420 participants (210 dyads of prevalent dialysis patients and their surrogates) from 20 dialysis centers.

INTERVENTION

Every dyad received usual care. Those randomly assigned to SPIRIT had an in-depth ACP discussion at the center and a follow-up session at home 2 weeks later.

OUTCOMES & MEASUREMENTS

PRIMARY OUTCOMES

preparation for end-of-life decision making, assessed for 12 months, included dyad congruence on goals of care at end of life, patient decisional conflict, surrogate decision-making confidence, and a composite of congruence and surrogate decision-making confidence.

SECONDARY OUTCOMES

bereavement outcomes, assessed for 6 months, included anxiety, depression, and posttraumatic distress symptoms completed by surrogates after patient death.

RESULTS

PRIMARY OUTCOMES

adjusting for time and baseline values, dyad congruence (OR, 1.89; 95% CI, 1.1-3.3), surrogate decision-making confidence (β=0.13; 95% CI, 0.01-0.24), and the composite (OR, 1.82; 95% CI, 1.0-3.2) were better in SPIRIT than controls, but patient decisional conflict did not differ between groups (β=-0.01; 95% CI, -0.12 to 0.10).

SECONDARY OUTCOMES

45 patients died during the study. Surrogates in SPIRIT had less anxiety (β=-1.13; 95% CI, -2.23 to -0.03), depression (β=-2.54; 95% CI, -4.34 to -0.74), and posttraumatic distress (β=-5.75; 95% CI, -10.9 to -0.64) than controls.

LIMITATIONS

Study was conducted in a single US region.

CONCLUSIONS

SPIRIT was associated with improvements in dyad preparation for end-of-life decision making and surrogate bereavement outcomes.

Advance care planning in 21st century Australia: a systematic review and appraisal of online advance care directive templates against national framework criteria

Objectives A drive to promote advance care planning at a population level has led to a proliferation of online advance care directive (ACD) templates but little information to guide consumer choice. The current study aimed to appraise the quality of online ACD templates promoted for use in Australia. Methods A systematic review of online Australian ACD templates was conducted in February 2014. ACD templates were identified via Google searches, and quality was independently appraised by two reviewers against criteria from the 2011 report A National Framework for Advance Care Directives. Bias either towards or against future medical treatment was assessed using criteria designed to limit subjectivity. Results Fourteen online ACD templates were included, all of which were available only in English. Templates developed by Southern Cross University best met the framework criteria. One ACD template was found to be biased against medical treatment – the Dying with Dignity Victoria Advance Healthcare Directive. Conclusions More research is needed to understand how online resources can optimally elicit and record consumers’ individual preferences for future care. Future iterations of the framework should address online availability and provide a simple rating system to inform choice and drive quality improvement. What is known about the topic? Online availability of ACD templates provides consumers with an opportunity for advance care planning outside of formal healthcare settings. While online availability has advantages, there is a risk that templates may be biased either for or against medical treatment and may not elicit directives that are appropriately informed by reflection on personal values and discussion with family and health professionals. What does this paper add? This is the first attempt at monitoring the quality and bias of online ACD templates designed for use in Australia. What are the implications for practitioners? The results of this review provide a description and quality index to assist consumers and clinicians in deciding which online ACD template to use or recommend.

A longitudinal, randomized, controlled trial of advance care planning for teens with cancer: anxiety, depression, quality of life, advance directives, spirituality

PURPOSE

To test the feasibility, acceptability and safety of a pediatric advance care planning intervention, Family-Centered Advance Care Planning for Teens With Cancer (FACE-TC).

METHODS

Adolescent (age 14-20 years)/family dyads (N = 30) with a cancer diagnosis participated in a two-armed, randomized, controlled trial. Exclusion criteria included severe depression and impaired mental status. Acceptability was measured by the Satisfaction Questionnaire. General Estimating Equations models assessed the impact of FACE-TC on 3-month post-intervention outcomes as measured by the Pediatric Quality of Life Inventory 4.0 Generic Core Scale, the Pediatric Quality of Life Inventory 4.0 Cancer-Specific Module, the Beck Depression and Anxiety Inventories, the Spiritual Well-Being Scale of the Functional Assessment of Chronic Illness Therapy-IV, and advance directive completion.

RESULTS

Acceptability was demonstrated with enrollment of 72% of eligible families, 100% attendance at all three sessions, 93% retention at 3-month post-intervention, and 100% data completion. Intervention families rated FACE-TC worthwhile (100%), whereas adolescents' ratings increased over time (65%-82%). Adolescents' anxiety decreased significantly from baseline to 3 months post-intervention in both groups (β = -5.6; p = .0212). Low depressive symptom scores and high quality of life scores were maintained by adolescents in both groups. Advance directives were located easily in medical records (100% of FACE-TC adolescents vs. no controls). Oncologists received electronic copies. Total Spirituality scores (β = 8.1; p = .0296) were significantly higher among FACE-TC adolescents versus controls. The FACE-TC adolescents endorsed the best time to bring up end-of-life decisions: 19% before being sick, 19% at diagnosis, none when first ill or hospitalized, 25% when dying, and 38% for all of the above.

CONCLUSIONS

Family-Centered Advance Care Planning for Teens With Cancer demonstrated feasibility and acceptability. Courageous adolescents willingly participated in highly structured, in-depth pediatric advance care planning conversations safely.

Impact of advance directives and a health care proxy on doctors' decisions: a randomized trial

CONTEXT

Advance directives or proxy designations are widely recommended, but how they affect doctors' decision making is not well known.

OBJECTIVES

The aim of this study was to quantify the influence of advance directives and proxy opinions on doctors' decisions.

METHODS

We mailed to all the generalists and internists in French-speaking Switzerland (N = 1962) three vignettes describing difficult decisions involving incapacitated patients. In each case, the advance directive requested that further care be withheld. One vignette tested the impact of a written advance directive vs. a proxy. Another compared the impact of a handwritten directive vs. a formalized document. The third vignette compared the impact of a family member vs. a doctor as a proxy. Each vignette was prepared in three or four versions, including a control version in which no directive or proxy was present. Vignettes were randomly allocated to respondents. We used logistic regression to predict the decision to forgo a medical intervention.

RESULTS

Compared with the control condition, the odds of forgoing a medical intervention were increased by the written advance directive (odds ratio [OR] 7.3; P < 0.001), the proxy (OR 7.9; P < 0.001), and the combination of the two (OR 35.7; P < 0.001). The handwritten directive had the same impact (OR 13.3) as the formalized directive (OR 13.8). The effect of proxy opinion was slightly stronger when provided by a doctor (OR 11.3) rather than by family (OR 7.8).

CONCLUSION

Advance directives and proxy opinions are equally effective in influencing doctors' decisions, but having both has the strongest effect. The format of the advance directive and the identity of the proxy have little influence on decisions.

Life-sustaining treatment preferences: matches and mismatches between patients' preferences and clinicians' perceptions

CONTEXT

Better clinician understanding of patients' end-of-life treatment preferences has the potential for reducing unwanted treatment, decreasing health care costs, and improving end-of-life care.

OBJECTIVES

To investigate patient preferences for life-sustaining therapies, clinicians' accuracy in understanding those preferences, and predictors of patient preference and clinician error.

METHODS

This was an observational study of 196 male veterans with chronic obstructive pulmonary disease who participated in a randomized trial. Measures included patients' preferences for mechanical ventilation (MV) and cardiopulmonary resuscitation (CPR) if needed in their current state of health, and outpatient clinicians' beliefs about those preferences.

RESULTS

Analyses were based on 54% of participants in the trial who had complete patient/clinician data on treatment preferences. Patients were more receptive to CPR than MV (76% vs. 61%; P<0.001). Preferences for both treatments were significantly associated with the importance patients assigned to avoiding life-sustaining therapies during the final week of life (MV: b=-0.11, P<0.001; CPR: b=-0.09, P=0.001). When responses were dichotomized (would/would not want treatment), clinicians' perceptions matched patient preferences in 75% of CPR cases and 61% of MV cases. Clinician errors increased as patients preferred less aggressive treatment (MV: b=-0.28, P<0.001; CPR: b=-0.32, P<0.001).

CONCLUSION

Clinicians erred more often about patients' wishes when patients did not want treatment than when they wanted it. Treatment decisions based on clinicians' perceptions could result in costly and unwanted treatments. End-of-life care could benefit from increased clinician-patient discussion about end-of-life care, particularly if discussions included patient education about risks of treatment and allowed clinicians to form and maintain accurate impressions of patients' preferences.

Understanding how cancer patients actualise, relinquish, and reject advance care planning: implications for practice

PURPOSE

Although advance care planning (ACP) is recognised as integral to quality cancer care, it remains poorly integrated in many settings. Given cancer patients' unpredictable disease trajectories and equivocal treatment options, a disease-specific ACP model may be necessary. This study examines how Australian cancer patients consider ACP. Responses will inform the development of an Australian Cancer Centre's ACP programme.

METHODS

A constructivist research approach with grounded theory design was applied. Eighteen adults from lung and gastro-intestinal tumour streams participated. Participants first described their initial understanding of ACP, received ACP information, and finally completed a semi-structured interview assisted by the vignette technique. Qualitative inter-rater reliability was integrated.

RESULTS

Participants initially had scant knowledge of ACP. On obtaining further information, their responses indicated that: For cancer patients, ACP is an individualised, dynamic, and shared process characterised by myriad variations in choices to actualise, relinquish, and/or reject its individual components (medical enduring power of attorney, statement of choices, refusal of treatment certificate, and advanced directive). Actualisation of each component involves considering, possibly conversing about, planning, and communicating a decision, usually iteratively. Reactions can change over time and are informed by values, memories, personalities, health perceptions, appreciation of prognoses, and trust or doubts in their substitute decision makers.

CONCLUSION

Findings endorse the value of routinely, though sensitively, discussing ACP with cancer patients at various time points across their disease trajectory. Nonetheless, ACP may also be relinquished or rejected and ongoing offers for ACP in some patients may be offensive to their value system.

Determining compound comorbidities for heart failure from hospital discharge data

The course of treatment and ultimate clinical outcome often depends on a holistic understanding of the patient status, which often requires cataloguing of concomitant conditions ("comorbidities"). A number of approaches have been developed to quantify the effect of comorbidities (e.g., the Charlson Comorbidity Index); however, reported metrics have been based on pair-wise analyses of co-occurring conditions. This study explored the potential to develop "compound co-morbidities" (CCMs) as a knowledge construct to represent multiple comorbidities, which accommodates for relative prevalence, statistical significance, and rate of increased cost. In the context of congestive heart failure, which is a leading cause for hospital admissions nationally (particularly for the elderly), CCMs were developed and analyzed based on hospital discharge data for an entire state population (Vermont). The results suggest that CCMs may be a valuable construct for characterizing complex co-morbidity relationships that may not be captured using conventional pair-wise approaches.