Is evidence-based practice justified?-A philosophical critique.

BACKGROUND: Evidence-based practice is the principle governing a range of healthcare practices and beyond. However, it has suffered from a lack of philosophical rigour. This paper sets out to analyse the epistemological basis of evidence-based practice. METHOD: The paper uses a conceptual analysis. First, it describes the implicit epistemology at work in evidence-based practice. Second, it evaluates the implicit epistemological basis. RESULTS: The analysis indicates that evidence-based practice lacks an explicit epistemological basis. It shows, moreover, that the implicit epistemological basis is untenable. CONCLUSION: There is a need to re-think the epistemological basis for evidence-based practice. Evidence-based practice is out of touch with developments within philosophy of science.

Wakefield's Harm-Based Critique of the Biostatistical Theory.

Jerome Wakefield criticizes my biostatistical analysis of the pathological-as statistically subnormal biological part-functional ability relative to species, sex, and age-for its lack of a harm clause. He first charges me with ignoring two general distinctions: biological versus medical pathology, and disease of a part versus disease of a whole organism. He then offers 10 counterexamples that, he says, are harmless dysfunctions but not medical disorders. Wakefield ends by arguing that we need a harm clause to explain American psychiatry's 1973 decision to declassify homosexuality. I reply, first, that his two distinctions are philosophic fantasies alien to medical usage, invented only to save his own harmful-dysfunction analysis (HDA) from a host of obvious counterexamples. In any case, they do not coincide with the harmless/harmful distinction. In reality, medicine admits countless chronic diseases that are, contrary to Wakefield, subclinical for most of their course, as well as many kinds of typically harmless skin pathology. As for his 10 counterexamples, no medical source he cites describes them as he does. I argue that none of his examples contradicts the biostatistical analysis: all either are not part-dysfunctions (situs inversus, incompetent sperm, normal-flora infection) or are indeed classified as medical disorders (donated kidney, Typhoid Mary's carrier status, latent tuberculosis or HIV, cherry angiomas). And if Wakefield's HDA fits psychiatry, the fact that it does not fit medicine casts doubt on psychiatry's status as a medical specialty.

What Happens When the Zygote Divides? On the Metaphysics of Monozygotic Twinning.

It is often argued that certain metaphysical complications surrounding the phenomenon of monozygotic twinning force us to conclude that, prior to the point at which twinning is no longer possible, the zygote or early embryo cannot be considered an individual human organism. In this essay, I argue, on the contrary, that there are in fact several ways of making sense of monozygotic twinning that uphold the humanity of the original zygote, but also that there is no easy answer to what happens when the human zygote twins. All of the options available carry with them one or more surprising, alarming, or otherwise counterintuitive implications. All things considered, I conclude that the "budding option," according to which the original human organism present before twinning carries on as one of the resulting embryos but not the other, is the most plausible explanation of what happens when a human zygote twins.

What We Argue About When We Argue About Death.

The literature on the determination of death has often if not always assumed that the concept of human death should be defined in terms of the end of the human organism. I argue that this broadly biological conceptualization of human death cannot constitute a basis for agreement in a pluralistic society characterized by a variety of reasonable views on the nature of our existence as embodied beings. Rather, following Robert Veatch, I suggest that we must define death in moralized terms, as the loss of an especially significant sort of moral standing. Departing from Veatch, however, I argue that we should not understand death in terms of the loss of all moral status whatsoever. Rather, I argue, what we should argue about, when we argue about death, is when and why people lose their rights-claims to the protection and promotion of their basic bodily functioning.

Do Not Risk Homicide: Abortion After 10 Weeks Gestation.

When an abortion is performed, someone dies. Are we killing a human person? Widespread disagreement exists. However, it is not necessary to establish personhood in order to establish the wrongness of abortion: a substantial chance of personhood is enough. We defend The Do Not Risk Homicide Argument: abortions are wrong after 10 weeks gestation because they substantially and unjustifiably risk homicide, the unjust killing of a human person. Why 10 weeks? Because the cumulative evidence establishes a substantial chance (a more than one in five chance) that preborn human beings are persons after 10 weeks (if not before then). We submit evidence from our bad track record, widespread disagreement about personhood (after 10 weeks gestation), problems with theories of personhood, the similarity between preborn human beings and premature newborns, miscalculations of gestational age, and the common intuitive responses of women to their pregnancies and miscarriages. Our argument is cogent because it bypasses the stalemate over preborn personhood and rests on common ground rather than contentious metaphysics. It also strongly suggests that society must do more to protect preborn human beings. We briefly discuss its practical implications for fetal pain relief, social policy, and abortion law.

Ethical Problems of Observational Studies and Big Data Compared to Randomized Trials.

The temptation to use prospective observational studies (POS) instead of conducting difficult trials (RCTs) has always existed, but with the advent of powerful computers and large databases, it can become almost irresistible. We examine the potential consequences, were this to occur, by comparing two hypothetical studies of a new treatment: one RCT, and one POS. The POS inevitably submits more patients to inferior research methodology. In RCTs, patients are clearly informed of the research context, and 1:1 randomized allocation between experimental and validated treatment balances risks for each patient. In POS, for each patient, the risks of receiving inferior treatment are impossible to estimate. The research context and the uncertainty are down-played, and patients and clinicians are at risk of becoming passive research subjects in studies performed from an outsider's view, which potentially has extraneous objectives, and is conducted without their explicit, autonomous, and voluntary involvement and consent.

Unshared Minds, Decaying Worlds: Towards a Pathology of Chronic Loneliness.

The moment when a person's actual relationships fall short of desired relationships is commonly identified as the etiological moment of chronic loneliness, which can lead to physical and psychological effects like depression, worse recovery from illness and increased mortality. But, this etiology fails to explain the nature and severe impact of loneliness. Here, we use philosophical analysis and neuroscience to show that human beings develop and maintain our world-picture (our sense of what is true, important, and good) through joint attention and action, motivated by friendship, in the Aristotelian sense of "other selves" who share a sense of the true and the good, and desire the good for each other as much as for themselves. The true etiological event of loneliness is the moment one's world-picture becomes unshared. The pathogenesis is a resultant decay of our world-picture, with brain and behavior changes following as sequelae.

Vision, body and interpretation in medical imaging diagnostics.

This article explores the profound impact of visualism and visual perception in the context of medical imaging diagnostics. It emphasizes the intricate interplay among vision, embodiment, subjectivity, language, and historicity within the realm of medical science and technology, with a specific focus on image consciousness. The study delves into the role of subjectivity in perception, facilitating the communication of opacity and historicity to the perceiving individual. Additionally, it scrutinizes the image interpretation process, drawing parallels to text interpretation and highlighting the influence of personal biases and individuality in medical practice. By revisiting Husserl's conceptualization of "image consciousness" and introducing the notion of "image theme", the paper seeks to establish a theoretical framework for making sense of images within the context of technological interpretation. A key objective is to enhance the phenomenology of technology through a systematic analysis of medical imaging diagnosis, contributing to an expanded epistemological foundation for medical practice. The article recognizes that the construction of medical knowledge incorporates subjective elements, especially within a historical context. The interpretation of images involves both instrumental and expert interpretation, with human subjectivity playing a crucial role. The article asserts that human creativity and conscious engagement are indispensable in interpreting all medical images.

Medicine, emotience, and reason.

Medicine is faced with a number of intractable modern challenges that can be understood in terms of hyper-intellectualization; a compassion crisis, burnout, dehumanization, and lost meaning. These challenges have roots in medical philosophy and indeed general Western philosophy by way of the historic exclusion of human emotion from human reason. The resolution of these medical challenges first requires a novel philosophic schema of human knowledge and reason that incorporates the balanced interaction of human intellect and human emotion. This schema of necessity requires a novel extension of dual-process theory into epistemology in terms of both intellect and emotion each generating a distinct natural kind of knowledge independent of the other as well as how these two forms of mental process together construct human reason. Such a novel philosophic schema is here proposed. This scheme is then applied to the practice of medicine with examples of practical applications with the goal of reformulating medical practice in a more knowledgable, balanced, and healthy way. This schema's expanded epistemology becomes the philosophic foundation for more fully incorporating the humanities in medicine.

Diagnosis: What Is the Structure of Its Reasoning?

How does the diagnosis process work? This essay traces the philosophical underpinnings of diagnosis from Hume through Kant, Peirce, and Popper, analyzing how pathologists amalgamate sensibility, intuition, and imagination to form new hypotheses that can be tested by evidence and experience.

The Dynamics of Disease: Toward a Processual Theory of Health.

The following article presents preliminary reflections on a processual theory of health and disease. It does this by steering the discussion more toward an ontology of organisms rather than conceptual analysis of the semantic content of the terms "health" and "disease." In the first section, four meta-theoretical assumptions of the traditional debate are identified and alternative approaches to the problems are presented. Afterwards, the view that health and disease are constituted by a dynamic relation between demands imposed on an organism and individual presuppositions for adequate response is developed. In the last section, the paper takes stock of three possible objections to and clarifies some implications of this approach to the notions of health and disease.

What is the Philosophy of Neurosurgery? Systematic Review and Defining the Discipline.

INTRODUCTION: Despite centuries of joint investigation of philosophy and neurological interventions, a founding account for the philosophy of neurosurgery has yet to be rigorously constructed or defended. This paper reviews recent work on the philosophy of neurosurgery, spanning metaphysics, epistemology, and value theory, to establish a framework and clinical relevance for study in the philosophy of neurosurgery. METHODS: A systematic review of an online database was conducted using the broad search terms, "Philosophy AND (Neurosurgery OR Neurological Surgery)." Records were included if they demonstrated relevance to the philosophy of neurosurgery and analytical rigor, but were excluded if solely legal, clinical, or ethical principles were considered without substantive discussion of underlying ethical frameworks and philosophical principles. RESULTS: Of 8025 candidates from online and print records, 16 records (14 from online sources and 2 from an edited volume) met inclusion criteria for the systematic review. Three dealt with metaphysics, 3 dealt with epistemology, 4 dealt with value theory, 5 dealt with metaphysics/epistemology, and 1 dealt with value theory/metaphysics. Questions of free will, consciousness, personal identity, neurosurgical knowledge, ascription of other minds, deontology, and minimalism, among others, were considered. DISCUSSION: Based on identified studies, the philosophy of neurosurgery is defined as the discipline of rigorously and methodically addressing metaphysical, epistemological, and value-theoretic questions arising from physically intervening in the nervous system. We discuss future directions for questions within the philosophy of neurosurgery and consider their relevance for patient care and the practice of neurosurgery.

Discovering clinical phronesis.

Phronesis is often described as a 'practical wisdom' adapted to the matters of everyday human life. Phronesis enables one to judge what is at stake in a situation and what means are required to bring about a good outcome. In medicine, phronesis tends to be called upon to deal with ethical issues and to offer a critique of clinical practice as a straightforward instrumental application of scientific knowledge. There is, however, a paucity of empirical studies of phronesis, including in medicine. Using a hermeneutic and phenomenological approach, this inquiry explores how phronesis is manifest in the stories of clinical practice of eleven exemplary physicians. The findings highlight five overarching themes: ethos (or character) of the physician, clinical habitus revealed in physician know-how, encountering the patient with attentiveness, modes of reasoning amidst complexity, and embodied perceptions (such as intuitions or gut feeling). The findings open a discussion about the contingent nature of clinical situations, a hermeneutic mode of clinical thinking, tacit dimensions of being and doing in clinical practice, the centrality of caring relations with patients, and the elusive quality of some aspects of practice. This study deepens understandings of the nature of phronesis within clinical settings and proposes 'Clinical phronesis' as a descriptor for its appearance and role in the daily practice of (exemplary) physicians.

Living ethics: a stance and its implications in health ethics.

Moral or ethical questions are vital because they affect our daily lives: what is the best choice we can make, the best action to take in a given situation, and ultimately, the best way to live our lives? Health ethics has contributed to moving ethics toward a more experience-based and user-oriented theoretical and methodological stance but remains in our practice an incomplete lever for human development and flourishing. This context led us to envision and develop the stance of a "living ethics", described in this inaugural collective and programmatic paper as an effort to consolidate creative collaboration between a wide array of stakeholders. We engaged in a participatory discussion and collective writing process known as instrumentalist concept analysis. This process included initial local consultations, an exploratory literature review, the constitution of a working group of 21 co-authors, and 8 workshops supporting a collaborative thinking and writing process. First, a living ethics designates a stance attentive to human experience and the role played by morality in human existence. Second, a living ethics represents an ongoing effort to interrogate and scrutinize our moral experiences to facilitate adaptation of people and contexts. It promotes the active and inclusive engagement of both individuals and communities in envisioning and enacting scenarios which correspond to their flourishing as authentic ethical agents. Living ethics encourages meaningful participation of stakeholders because moral questions touch deeply upon who we are and who we want to be. We explain various aspects of a living ethics stance, including its theoretical, methodological, and practical implications as well as some barriers to its enactment based on the reflections resulting from the collaborative thinking and writing process.

Embodiment and regenerative implants: a proposal for entanglement.

Regenerative Medicine promises to develop treatments to regrow healthy tissues and cure the physical body. One of the emerging developments within this field is regenerative implants, such as jawbone or heart valve implants, that can be broken down by the body and are gradually replaced with living tissue. Yet challenges for embodiment are to be expected, given that the implants are designed to integrate deeply into the tissue of the living body, so that implant and body become one. In this paper, we explore how regenerative implants may affect the embodied experience of implant recipients. To this end, we take a phenomenological approach. First, we explore what insights the existing phenomenological and empirical literature on embodiment offers regarding the experience of illness and of living with regular (non-regenerative) implants and organ transplants. Second, we apply these insights to better understand how future implant recipients might experience living with regenerative implants. Third, we conclude that concepts and considerations from the existing phenomenological literature do not sufficiently address what it might be like to live with an implantable technology that, over time, becomes one with the living body. We argue that the interwovenness and intimate relationship of people living with regenerative implants should be understood in terms of 'entanglement'. Entanglement allows us to explore the complexities of human-technology relations, acknowledging the inseparability of humans and implantable technologies. Our theoretical foundations regarding the role of embodiment may be tested empirically once more people will be living with regenerative implants.

Who has a meaningful life? A care ethics analysis of selective trait abortion.

Trait Selective Abortions (TSA) have come under critique as a medical practice that presents potential disabled infants as burdens and lacking the potential for meaningful lives. This paper, using the author's background as a disabled person, contends that the philosophy underpinning TSAs reflects liberal society's lack of a theory of needs. The author argues for a care ethics based approach informed by disability analyses to engage with TSAs.

Beyond Conceptual Analysis: Social Objectivity and Conceptual Engineering to Define Disease.

In this article, I side with those who argue that the debate about the definition of "disease" should be reoriented from the question "what is disease" to the question of what it should be. However, I ground my argument on the rejection of the naturalist approach to define disease and the adoption of a normativist approach, according to which the concept of disease is normative and value-laden. Based on this normativist approach, I defend two main theses: (1) that conceptual analysis is not the right method to define disease and that conceptual engineering should be the preferred method and (2) that the method of conceptual engineering should be implemented following the principles of Alexandrova's account of social objectivity in the context of the definition of disease.

Severity and death.

This article discusses the relationship between two theories about the badness of death, the Life-Comparative Account and the Gradualist Account, and two methods of operationalizing severity in health care priority setting, Absolute Shortfall and Proportional Shortfall. The aim is that theories about the badness of death can influence and inform the idea of the basis of severity as a priority setting criterion. I argue that there are strong similarities between the Life-Comparative Account and Absolute Shortfall, and since the Life-Comparative Account is one of the most reasonable accounts of the badness of death, this provides some support for using Absolute Shortfall. I also argue that it is difficult to find support for Proportional Shortfall from theories about the badness of death, and also, that it is difficult to find support for Gradualist Account from theories about severity.