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Should age be a deciding factor in ethical decision-making?

The question of age as a factor in ethical decision-making takes two forms. The first form considers age as a factor at the societal, or policy, level, and the second as a factor in determining the capacity of the individual patient to make decisions regarding their own care. This article satisfies itself with a consideration of only the latter question. The issue of whether age is contributing factor in medical decision-making is frequently posited when one considers ethically charged instances of medical decision making at the end of life. Few would argue that the person who has the capacity for decision-making should be denied the ability to exercise that facility and so, it is when a person has lost their ability for making those choices that the question of age as a contributing factor in ethical decision making is raised. The question therefore becomes one of capacity more then age, with age as a useful, but inexact, gauge of that capacity. The inexactitude of age as a surrogate of capacity is a contributing factor to the problem posed in this series of articles. Therefore, to define the relative contribution of age to the capacity for ethical decision-making this article will focus not on the loss of that ability, but rather on the factors that define the realization of that faculty. To do this it will be necessary to define how that faculty is to be to be measured and what are the characteristics of an ethical decision that define it apart from other decisions. Since at the beginning of life, if age is the only variable (adjusting for other co-morbid states) then the issue of surrogacy is a temporary one and is unlike the adult where the presumption is that the person is unlikely to regain decision-making capacity as they slip further into their morbid state.

Adult↗

Making ethical choices: a comprehensive decision-making model for Canadian psychologists.

This paper proposes a theoretical augmentation of the seven-step decision-making model outlined in the Canadian Code of Ethics for Psychologists. We propose that teleological, deontological, and existential ethical perspectives should be taken into account in the decision-making process. We also consider the influence of individual, issue-specific, significant-other, situational, and external factors on ethical decision-making. This theoretical analysis demonstrates the richness and complexity of ethical decision-making.

Canada↗

Haemodynamic instability after cardiac surgery: nurses' perceptions of clinical decision-making.

BACKGROUND: Cardiac surgical patients are distinguished by their potential for instability in the early postoperative period, highly invasive haemodynamic monitoring technologies and unique clinical presentations as a result of undergoing cardiopulmonary bypass. Little is known about nurses' perceptions of assuming responsibility for such patients. An understanding of nurses' perceptions may identify areas of practice that can be improved and assist in determining the adequacy of current decision supports. AIM: The aim of this study was to describe critical care nurses' perceptions of assuming responsibility for the nursing management of cardiac patients in the initial two-hour postoperative period. DESIGN: An exploratory descriptive study based on naturalistic decision-making. METHODS: Thirty-eight nurses were interviewed immediately following a two-hour observation of their clinical practice. Content analysis and a systematic thematic analysis process called 'Framework' were used to analyse the interview transcripts. RESULTS: Nurses described their perceptions of managing patients in terms of how they felt about making decisions for complex cardiac surgical patients and in terms of how clinical processes unique to the admission phase impacted their decision-making. Nurses felt either daunted or stimulated and challenged when making decisions. Nurses identified handover from anaesthetists, settling in procedures and forms of collegial assistance as important processes that impacted their decision-making. CONCLUSION: Nurses' previous experiences with similar patients influenced how they felt about making decisions during the initial two-hour postoperative period, but did not alter their views about processes important for patient safety during this time. RELEVANCE TO CLINICAL PRACTICE: Feelings expressed by nurses in this study highlight the need for clinical supervision and appropriate allocation of resources during the immediate recovery period after cardiac surgery. Nurses identified ways to improve clinical processes that impacted their decision-making during the immediate recovery of cardiac surgical patients.

Adult↗

Patient decision-making in relation to extensive restorative dental treatment. Part II: Evaluation of a patient decision-making model.

A theoretical model was proposed and tested to evaluate some of the factors involved in patients' decisions to undergo extensive restorative dental treatment. This model incorporates aspects of the environment within which the decision occurred (the patient/provider relationship, social influence and the role of cues in initiating treatment) and internal values held by the individual (perceptions of value of and barriers to treatment). Value of treatment was measured using aesthetics, function, health motivation and self-esteem. Barriers to treatment included fears and anxieties about treatment, the costs of treatment, the time involved in obtaining treatment and access to care. Data were collected by mailed questionnaire from 188 patients at a North American state university dental school who had received over $1,500 of restorative dental treatment during 1990/91. Data were analysed using path analysis multiple regression. The most important determinant in the decision to undergo treatment was patient/provider relationship. As expected, barriers exerted an inverse effect upon the outcome and had twice the influence compared with the patients' perceived value of treatment. Cues and social influence were not shown to play a significant role in initiating restorative dental treatment.

Adult↗

Voting and priorities in health care decision making, portrayed through a group decision support system, using analytic hierarchy process.

Within the health care industry many decision making approaches and tools are used. This paper explores a new tool, the Analytic Hierarchy Process (AHP), which permits both subjective and objective information to be considered in a decision. AHP has tremendous potential to solve both traditional and non-traditional health care problems. Its strength as a decision-making tool is its ability to combine both subjective and objective data. Application of AHP is discussed within the context of a Group Decision Support System (GDSS) model developed by Hatcher. The model is reviewed in limited detail, and readers are referred to the original article that defined and discussed the uniqueness and level of sophistication of GDSS applications in the health care industry. Health and medical delivery problems are discussed to highlight AHP requirements and the complexity of AHP applications. Health care applications are unique in that they lend themselves ideally to the use of computer data, image, voice, text, and multimedia concepts.

Decision Making, Organizational↗

The appropriateness of Multicriteria Analysis in environmental decision-making problems.

Environmental decision-making occurs in numerous environmental sectors and covers a diverse range of problems. Of the various decision tools available not all of them may be appropriate for any single decision problem, and any particular decision-aid may not be applicable in all decision problems. This article reviews applications of MCA, and considers the appropriateness of Multicriteria Analysis (MCA) in environmental decision-making problems. Due to natural and decision environments being multidimensional, environmental decision-making is characterized by complexity. Consequently MCA has commonly been used in this area. In Environmental Impact Assessment (EIA) the multiple dimensions of the impacts evaluated have been easily represented in MCA as multiple criteria. Waste management and water resource planning problems involving public participation have been facilitated by MCA, through the structuring and articulation of the public's values. MCA has also been applied in water quality problems, allowing the incorporation of incommensurable criteria into evaluations. The appropriateness of MCA for environmental decision problems can be viewed in the context of a typical decision-making process, making it easier to identify the contribution MCA can make at various decision-making stages. MCA can be particularly appropriate when the decision-making context is characterized by multiple objectives and multiple criteria, incommensurable criteria, mixed data and the need for ease of use, and the analysis context is characterized by multiple participants.

Conservation of Natural Resources↗

Coronary care nurses' clinical decision making.

Increasing acuity of hospitalized persons with cardiac disease places great demands on nurses' decision-making abilities. Yet nursing lags in knowledge-based system development because of limited understanding about how nurses use knowledge to make decisions. The two research questions for this study were: how do the lines of reasoning used by experienced coronary care nurses compare with those used by new coronary care nurses in a representative sample of hypothetical patient cases, and are the predominant lines of reasoning used by coronary care nurses in hypothetical situations similar to those used for comparable situations in clinical practice? Line of reasoning was defined as a set of arguments in which knowledge is embedded within decision-making processes that lead to a conclusion. Sixteen subjects (eight experienced and eight new nurses) from coronary care and coronary step-down units in a large, private, teaching hospital in Minnesota, USA, were asked to think aloud while making clinical decisions about six hypothetical cases and comparable actual case. One finding was that most subjects in both groups used multiple lines of reasoning per case; but they used only one predominantly. This finding highlighted the non-linear nature of clinical decision making. Subjects used 25 predominant lines of reasoning, with intergroup differences on six of them. Where there were differences, experienced nurses used lines of reasoning of lower quality than did new subjects. The type variability in lines of reasoning suggested that multiple pathways should be incorporated into knowledge-system design. One implication of the variability in subjects' line of reasoning quality is that nurses at all levels of expertise are fallible and could benefit from decision support. The finding that subjects tended to use similar lines of reasoning for comparable hypothetical and actual cases was modest validation of subjects' performance on hypothetical cases as representing their decision making in practice. Consequently, there was support for using simulations and case studies in teaching and studying clinical decision making.

Adult↗

Improving medical resident perceptions of health plan decision making.

OBJECTIVE: To determine the effect on medical residents' perceptions resulting from attending a medical policy meeting. STUDY DESIGN: Pre- and postsurveys administered to residents attending BlueCross BlueShield of Tennessee's (BCBST) Medical Policy Subcommittee meeting. This group is a subcommittee of the Medical Policy Review Committee (MPRC), which is responsible for the final approval of medical policies at BCBST. METHODS: Residents were invited to attend BCBST's Medical Policy Subcommittee meeting to determine what impact observing this process would have on their attitudes toward health insurers' use of scientific evidence. This subcommittee, which consists of both BCBST medical directors and network physicians, plays a key role in determining whether new medical technologies or new uses of established technologies are medically necessary, cosmetic, not medically necessary, or investigational. Residents were given a pre- and postsurvey to assess their attitudes regarding the methods insurance companies use to make coverage decisions. RESULTS: Medical residents rated BCBST's use of scientific evidence higher after attending the subcommittee meeting. Only 4 of the 10 residents surveyed prior to the subcommittee meeting agreed with the statement, "Insurance companies base their coverage decisions for medical treatment on scientific evidence." In the postsurvey, all 10 residents indicated that they agreed with the statement. Other questions showed similar positive changes in residents' opinions of the health plans' decision making. CONCLUSIONS: Many medical residents likely have negative perceptions of health insurers and may be prone to believe that medical policy decisions are based predominantly on financial impact. Such attitudes can easily persist as they move into private practice. Although drawing firm conclusions from this small study is difficult, exposing residents to actual decision-making processes within insurance companies may be one means of improving their opinions of how such decisions are made.

Attitude of Health Personnel↗

Critical care nurses' use of decision-making strategies.

Effective decision-making has the potential to facilitate improvements in health care. This paper reports several aspects of a study which used "thinking aloud" within a concept attainment framework to examine the decision-making processes of expert critical care nurses in relation to haemodynamic monitoring. The purpose of this study was to examine whether hypotheses were used in the decision-making process and, if so, were hypotheses deactivated when no longer relevant. In addition, the strategies that were used during the decision-making process were examined. Eight expert critical care nurses consented to participate in the study after ethics clearance was obtained from both the University and Hospital ethics committees. The majority of expert critical care nurse participants in this study demonstrated extensive use of hypotheses to explain the relationship between attributes and concepts. There was no evidence of specific deactivation of hypotheses when they were no longer relevant. Participants demonstrated use of a range of decision-making strategies, with a Focus Gambling Strategy being the most common. The reason for using different decision-making strategies was not clear and may represent variation between decision-makers or between scenarios for each individual decision-maker. Recommendations are made to help improve critical care nurses' decision-making.

Attitude of Health Personnel↗

Adaptive versus veridical decision making and the frontal lobes.

Adaptive decision making and veridical decision making are based on different mechanisms. Veridical decision making is based on the identification of the correct response, which is intrinsic to the external situation and is actor-independent. Adaptive decision making is actor-centered and is guided by the actor's priorities. The prefrontal cortex is particularly critical for adaptive decision making and less so for veridical decision making. However, most experimental procedures used in cognitive psychology and neuropsychology focus on veridical decision making and ignore adaptive decision making. Innovative experimental procedures are required to characterize the contribution of the prefrontal cortex to adaptive decision making. We have designed a prototype for such procedures, the Cognitive Bias Task, and present the novel findings generated by this task.

Adaptation, Physiological↗

Warrants for prescription: analytically and empirically based approaches to improving decision making.

Efforts to improve decision making must appeal to some source of warrant - that is, specific criteria or models for guiding and evaluating decision-making performance. We examine and compare the warrants for two approaches to decision aids, decision training, and consulting: analytically based prescription, which obtains warrant from formal models, and empirically based prescription, which obtains warrant from descriptive models of successful performance. We argue that empirically based warrants can provide a meaningful and valid basis for prescriptive intervention without committing the naturalistic fallacy (i.e., confusing what is with what ought to be) and without the use of formal deduction from first principles. We describe points of divergence as well as convergence in the types of warrant appealed to by naturalistic decision making and decision analysis, letting each approach shed light on the other, and explore the application of empirically based prescription to cognitive engineering. Actual or potential applications of this research include the development of training programs to improve various aspects of naturalistic decision making.

Awareness↗

[Medical decision making: some aspects].

Three main aspects of medical decision making will be shortly described in this article. Comprehensible information is required to make decisions. The question is, how much information is needed to make decisions, and a third aspect in this article concerns the decision maker. Research in the field of information transfer has shown that medical information, as presented in most journals, is difficult to understand. According to the classic decision theory, decisions are taken after collecting all available information. More recent research in decision making proves the hypothesis that human beings are able to decide correctly with much less information than presumed earlier. In medicine the patient is the decision maker, and the primary task of physicians is to inform the patient about his health status and enable him to reach a conclusion.

Decision Making↗

General problems in medical decision making with comments on ROC analysis.

Medical decision-making studies continue to focus on two questions: How do physicians make decisions? How should physicians make decisions? Researchers pursuing the first question emphasize human cognitive processes and the programming of symbol systems to model observed human behavior. Those researchers concentrating on the second question assume that there is a standard of performance against which the physician's decisions can be judged, and to help the physician improve his performance, an array of tools is proposed. These tools include decision trees, Bayesian analysis, decision matrices, receiver operating characteristics (ROC) analysis, and cost-benefit considerations including utility measures. Medical decision-making questions must be answered in an ethical context where ethics and decision analysis are interviewed.

Bayes Theorem↗

Decision making in surgical practice.

Judgment has been defined as the ability to make correct decisions with uncertain, incomplete, or inconsistent information. Decision analysis is a scientific method of choosing between trade-offs. This review provides evidence that the model of decision analysis adequately represents clinical problems and that the use of decision analysis can improve clinical judgment. The technique of analyzing decisions using a decision tree model is reviewed. Using the decision tree model, a decision consists of specifying the options, specifying the outcomes associated with each option, assigning probabilities to those outcomes when they are not known with certainty, and assigning values or utilities to those outcomes. Surgical decisions can be described by a limited number of decision trees despite a much larger number of clinical problems. A model of the surgical decision making process, consistent with the analytical decision tree model, details steps useful in clinical decision making. The surgeon determines whether the characteristics of the patient match those of the typical patient with the condition. If so, the standard solution is recommended. If not, the surgeon concentrates on assessing or revising the specific probabilities or utilities that are different. If the best option is suboptimal, consideration is given to more aggressive diagnosis or to a therapy that offers the potential for a better outcome, but at a risk. The recommendations of surgeons for 6 patient management problems was compared to the analytical solutions using their own subjective estimates of probabilities and utilities. Decision analysis provided a net gain in accuracy in all 6 problems. Decision analysis was also significantly more accurate than the conventional second opinion program.(ABSTRACT TRUNCATED AT 250 WORDS)

Decision Support Techniques↗

The use of a decision analysis model in multidisciplinary decision making.

This paper describes a conceptual decision analysis model for use in multidisciplinary decision making. Decision analysis was used to structure a decision process that ensured the best choice through consensus building among hospital decision makers. The four basic steps of the decision analysis model included: (1) identifying and establishing boundaries of the decision problem; (2) structuring the decision problem; (3) characterizing information needed to fill in the structure; and (4) choosing a preferred course of action. The selection of the best intermittent intravenous drug delivery system for Presbyterian Hospital illustrates the application of the conceptual model. This type of decision analysis model becomes a useful consensus building and communication device for the administrative pharmacist who is involved in multidisciplinary decision-making processes.

Decision Making, Organizational↗

In search of tools to aid logical thinking and communicating about medical decision making.

To have real-time impact on medical decision making, decision analysts need a wide variety of tools to aid logical thinking and communication. Decision models provide a formal framework to integrate evidence and values, but they are commonly perceived as complex and difficult to understand by those unfamiliar with the methods, especially in the context of clinical decision making. The theory of constraints, introduced by Eliyahu Goldratt in the business world, provides a set of tools for logical thinking and communication that could potentially be useful in medical decision making. The author used the concept of a conflict resolution diagram to analyze the decision to perform carotid endarterectomy prior to coronary artery bypass grafting in a patient with both symptomatic coronary and asymptomatic carotid artery disease. The method enabled clinicians to visualize and analyze the issues, identify and discuss the underlying assumptions, search for the best available evidence, and use the evidence to make a well-founded decision. The method also facilitated communication among those involved in the care of the patient. Techniques from fields other than decision analysis can potentially expand the repertoire of tools available to support medical decision making and to facilitate communication in decision consults.

Carotid Stenosis↗