Ethical Incorporation of Artificial Intelligence into Neurosurgery: A Generative Pretrained Transformer Chatbot-Based, Human-Modified Approach.

INTRODUCTION: Artificial intelligence (AI) has become increasingly used in neurosurgery. Generative pretrained transformers (GPTs) have been of particular interest. However, ethical concerns regarding the incorporation of AI into the field remain underexplored. We delineate key ethical considerations using a novel GPT-based, human-modified approach, synthesize the most common considerations, and present an ethical framework for the involvement of AI in neurosurgery. METHODS: GPT-4, ChatGPT, Bing Chat/Copilot, You, Perplexity.ai, and Google Bard were queried with the prompt "How can artificial intelligence be ethically incorporated into neurosurgery?". Then, a layered GPT-based thematic analysis was performed. The authors synthesized the results into considerations for the ethical incorporation of AI into neurosurgery. Separate Pareto analyses with 20% threshold and 10% threshold were conducted to determine salient themes. The authors refined these salient themes. RESULTS: Twelve key ethical considerations focusing on stakeholders, clinical implementation, and governance were identified. Refinement of the Pareto analysis of the top 20% most salient themes in the aggregated GPT outputs yielded 10 key considerations. Additionally, from the top 10% most salient themes, 5 considerations were retrieved. An ethical framework for the use of AI in neurosurgery was developed. CONCLUSIONS: It is critical to address the ethical considerations associated with the use of AI in neurosurgery. The framework described in this manuscript may facilitate the integration of AI into neurosurgery, benefitting both patients and neurosurgeons alike. We urge neurosurgeons to use AI only for validated purposes and caution against automatic adoption of its outputs without neurosurgeon interpretation.

Medical Ethics and Artificial Intelligence in Neurosurgery-How Should We Prepare?

BACKGROUND: The development of artificial intelligence (AI) raises ethical concerns about its side effects on the attitudes and behaviors of clinicians and medical practitioners. The authors aim to understand the medical ethics of AI-based chatbots and to suggest coping strategies for an emerging landscape of increased access and potential ambiguity using AI. METHODS: This study examines the medical ethics of AI-based chatbots (Chat generative pretrained transformer [GPT], Bing Chat, and Google's Bard) using multiple-choice questions. ChatGPT and Bard correctly answered all questions (5/5), while Bing Chat correctly answered only 3 of 5 questions. ChatGPT explained answers simply. Bing Chat explained answers with references, and Bard provided additional explanations with details. RESULTS: AI has the potential to revolutionize medical fields by improving diagnosis accuracy, surgical planning, and treatment outcomes. By analyzing large amounts of data, AI can identify patterns and make predictions, aiding neurosurgeons in making informed decisions for increased patient wellbeing. As AI usage increases, the number of cases involving AI-entrusted judgments will rise, leading to the gradual emergence of ethical issues across interdisciplinary fields. The medical field will be no exception. CONCLUSIONS: This study suggests the need for safety measures to regulate medical ethics in the context of advancing AI. A system should be developed to verify and predict pertinent issues.

Tumores de tronco encefálico: reflexión moral sobre la conducta quirúrgica / Brainstem tumors: moral reflection on surgery management / Tumores do tronco encefálico: reflexão moral sobre conduta cirúrgica

Resumen Los tumores de tronco encefálico representan alrededor del 10% al 20% de los tumores del sistema nervioso central en niños. El glioma intrínseco difuso es el más frecuente (80% de los casos) de este grupo de tumores, que se caracterizan por la mala evolución y una sobrevida corta. El diagnóstico se puede hacer por resonancia magnética (con espectroscopía) o por biopsia estereotáxica, un método controvertido, que permite el estudio inmunohistoquímico y molecular del tumor. La reflexión moral se focaliza en la indicación de biopsia para pacientes vulnerables y con mal pronóstico. Se analiza la cirugía desde el punto de vista ético, con base en el mejor interés del niño y en la actitud altruista del paciente y su familia.

Abstract Brainstem tumors represent about 10% to 20% of central nervous system tumors in children. Diffuse intrinsic glioma is the most frequent (80% of cases) in this group of tumors, characterized by poor prognosis and short survival. Diagnosis can be made by magnetic resonance (with spectroscopy) or by stereotactic biopsy, a controversial method that allows immunohistochemical and molecular study of the tumor. Moral reflection focuses on the indication of biopsy for vulnerable patients with a poor prognosis. Surgery is analyzed from an ethical point of view based on the best interests of the child and altruistic attitude of patient and family.

Resumo Os tumores de tronco encefálico representam cerca de 10% a 20% dos tumores do sistema nervoso central em crianças. O glioma intrínseco difuso é o mais frequente (80% dos casos) desse grupo de tumores, caracterizados pela má evolução e por uma curta sobrevida. O diagnóstico pode ser feito por ressonância magnética (com espectroscopia) ou por biópsia estereotáxica, um método controverso, que permite o estudo imunohistoquímico e molecular do tumor. A reflexão moral se concentra na indicação de biópsia para pacientes vulneráveis e com mau prognóstico. A cirurgia é analisada do ponto de vista ético com base no melhor interesse da criança e na atitude altruísta do paciente e da família.

Ethical and medicolegal aspects in the management of neurosurgical emergencies among Jehovah's Witnesses: Clinical implications and review.

When an incapacitated Jehovah's Witness neurologically deteriorates and requires immediate craniectomy, institutional protocols may delay surgery if the patient's refusal of blood products is ambiguous. We are among the first to describe such an ethically contentious case in emergency neurosurgery, review the morbidity of operative delays, discuss medicolegal concerns raised, and provide a detailed guide to hemostasis in patients who refuse blood products. We discuss the case of a 46-year-old woman presented with nausea, vomiting, and right-sided weakness, progressing to stupor over several hours. When an initial Computed Tomography (CT) scan showed a large, left-sided intraparenchymal hematoma with significant midline shift, she was booked for an emergency hemicraniectomy. According to the family, she was a Jehovah's Witness and would have refused blood consent, but was without the proper documentation. Despite her worsening neurological status, an indeterminate blood consent delayed surgery for more than two hours. Her neurological exam did not improve postoperatively, and she later expired. The ethical, legal, and operative concerns that arise in the emergency neurosurgical treatment of Jehovah's Witness patients pose unique management challenges. Since operative delay is a preventable cause of mortality in patients requiring urgent craniectomy, and the likelihood of requiring a transfusion from hemorrhage is minimal, an ambiguous blood consent should not postpone a potentially life-saving treatment. For the beneficence and autonomy of Jehovah's Witness patients, institutional policies should respect the family's wishes in order to expedite surgical decompression. In addition to discussing the nuances of such ethical considerations, we also provide a detailed list of commonly used, topical and parenteral hemostatic agents from the neurosurgical operating room which, depending on whether they are blood-derived, either should or should not be used when treating a Jehovah's Witness.

When Time Is Critical, Is Informed Consent Less So? A Discussion of Patient Autonomy in Emergency Neurosurgery.

Neurosurgical interventions frequently occur in an emergency setting. In this setting, patients often have impaired consciousness and are unable to directly express their values and wishes regarding their treatment. The limited time available for clinical decision making has great ethical implications, as the informed consent procedure may become compromised. The ethical situation may be further challenged by different views between the patient, family members, and the neurosurgeon; the presence of advance directives; the use of an innovative procedure; or if the procedure is part of a research project. This moral opinion piece presents the implications of time constraints and a lack of patient capacity for autonomous decision making in emergency neurosurgical situations. Potential solutions to these challenges are presented that may help to improve ethical patient management in emergency settings. Emergency neurosurgery challenges the respect of autonomy of the patient. The outcome in most scenarios will rely on the neurosurgeon acting in a professional way to manage each unique situation in an ethically sound manner.

Oversight and Ethical Regulation of Conflicts of Interest in Neurosurgery in the United States.

BACKGROUND: Developmental incentives are fundamental to surgical progress, yet financial and professional incentives inherently create conflicts of interest (COI). Understanding how to manage COI held by neurosurgeons, industry, hospitals, and journal editors, without thwarting progress and innovation is critical. OBJECTIVE: To present an overview of COI associated with innovation in neurosurgery, and review ways to manage these in an ethically sound manner. METHODS: A review of the literature was performed to assess conflicts of interest that affect neurosurgical innovation, and review ways to manage COI of various parties while adhering to ethical standards. RESULTS: COI are inherent to collaboration and innovation, and are therefore an unavoidable component of neurosurgery. The lack of a clear distinction between clinical practice and innovation, ability to use devices off-label, and unstandardized disclosure requirements create inconsistencies in the way that conflicts of interest are handled. Additionally, lack of requirements to compare innovation to the standard of care and inherent bias that affects study design and interpretation can have profound effects on the medical literature. Conflicts of interest can have both direct and downstream effects on neurosurgical practice, and it is possible to manage them while improving the quality of research and innovation. CONCLUSION: Conflicts of interest are inherent to surgical innovation, and can be handled in an ethically sound manner. Neurosurgeons, device companies, hospitals, and medical journals can take steps to proactively confront bias and ensure patient autonomy and safety. These steps can preserve public trust and ultimately improve evidence-based neurosurgical practice.

Management of hydrocephalus in patients with leptomeningeal metastases: an ethical approach to decision-making.

PURPOSE: Leptomeningeal metastases (LM) are a rare, but often debilitating complication of advanced cancer that can severely impact a patient's quality-of-life. LM can result in hydrocephalus (HC) and lead to a range of neurologic sequelae, including weakness, headaches, and altered mental status. Given that patients with LM generally have quite poor prognoses, the decision of how to manage this HC remains unclear and is not only a medical, but also an ethical one. METHODS: We first provide a brief overview of management options for hydrocephalus secondary to LM. We then apply general ethical principles to decision making in LM-associated hydrocephalus that can help guide physicians and patients. RESULTS: Management options for LM-associated hydrocephalus include shunt placement, repeated lumbar punctures, intraventricular reservoir placement, endoscopic third ventriculostomy, or pain management alone without intervention. While these options may offer symptomatic relief in the short-term, each is also associated with risks to the patient. Moreover, data on survival and quality-of-life following intervention is sparse. We propose that the pros and cons of each option should be evaluated not only from a clinical standpoint, but also within a larger framework that incorporates ethical principles and individual patient values. CONCLUSIONS: The decision of how to manage LM-associated hydrocephalus is complex and requires close collaboration amongst the physician, patient, and/or patient's family/friends/community leaders. Ultimately, the decision should be rooted in the patients' values and should aim to optimize a patient's quality-of-life.

Ethics and meningiomas: From prudence to obstinacy? The position of the neurosurgeon (for treatment or insurance purposes) in the case of complaints concerning post-operative clinical deterioration.

To treat or not to treat an asymptomatic or pauci-symptomatic benign meningioma, that is the question. And if treatment is necessary, what is the best technique: radical resection, sub-total resection or radiotherapy? This question is also pertinent for meningiomas of the skull base, posterior part of the sagittal sinus, anterior part of the foramen magnum and cerebellopontine angle. When the results of the treatment are good, the patient and the surgeon are satisfied. But when a new neurological deficit appears after the treatment, the patient is entitled to obtain compensation. What should be the position of the specialist medical assessor in this situation when the prognosis of these benign tumors is unknown? Is the preoperative information that is due to the patient complete, objective and sufficient? Is the therapeutic indication unquestionable? Is the technique irreproachable? For meningiomas, there is no "evidence-based medicine"; the therapeutic option is often based on the personal experience and/or the education of the surgeon and thus is, in fact, highly subjective.

Neurosurgical Patients as Human Research Subjects: Ethical Considerations in Intracranial Electrophysiology Research.

Intracranial electrical recordings and stimulation of neurosurgical patients have been central to the advancement of human neuroscience. The use of these methods has rapidly expanded over the last decade due to theoretical and technical advances, as well as the growing number of neurosurgical patients undergoing functional procedures for indications such as epilepsy, tumor resection, and movement disorders. These methods pose the potential for ethical conflict, as they involve basic neuroscientific research utilizing invasive procedures in human patients undergoing treatment for neurological illnesses. This review addresses technical aspects, clinical contexts, and issues of ethical concern, utilizing a framework that is informed by, but also departs from, existing bioethical literature on matters in clinical research. We conclude with proposals for improving informed consent processes to address potential problems specific to intracranial electrophysiology research, a general schema for scrutinizing research-related risk associated with different methods, and a call for the development of consensus to ensure continuing scientific progress alongside crucial patient protections in this promising area of human neuroscience.

Innovation in neurosurgery: less than IDEAL? A systematic review.

BACKGROUND: Surgical innovation is different from the introduction of novel pharmaceuticals. To help address this, in 2009 the IDEAL Collaboration (Idea, Development, Exploration, Assessment, Long-term follow-up) introduced the five-stage framework for surgical innovation. To evaluate the framework feasibility for novel neurosurgical procedure introduction, two innovative surgical procedures were examined: the endoscopic endonasal approach for skull base meningiomas (EEMS) and the WovenEndobridge (WEB device) for endovascular treatment of intracranial aneurysms. METHODS: The published literature on EEMS and WEB devices was systematically reviewed. Identified studies were classified according to the IDEAL framework stage. Next, studies were evaluated for possible categorization according to the IDEAL framework. RESULTS: Five hundred seventy-six papers describing EEMS were identified of which 26 papers were included. No prospective studies were identified, and no studies reported on ethical approval or patient informed consent for the innovative procedure. Therefore, no clinical studies could be categorized according to the IDEAL Framework. For WEB devices, 6229 articles were screened of which 21 were included. In contrast to EEMS, two studies were categorized as 2a and two as 2b. CONCLUSION: The results of this systematic review demonstrate that both EEMS and WEB devices were not introduced according to the (later developed in the case of EEMS) IDEAL framework. Elements of the framework such as informed consent, ethical approval, and rigorous outcomes reporting are important and could serve to improve the quality of neurosurgical research. Alternative study designs and the use of big data could be useful modifications of the IDEAL framework for innovation in neurosurgery.

Recruitment in Clinical Trials: The Use of Zelen's Prerandomization in Recent Neurovascular Studies.

OBJECTIVE: Randomized allocation of treatment options is not well accepted within the clinical community. Some methods of implementation may be received more favorably than others. Prerandomization may be an acceptable means to facilitate recruitment in some clinical trials. METHODS: We first compare randomization and prerandomization using illustrative neurovascular trials. We review some problems with conventional trials, Zelen's prerandomization as an alternative method, and the ethical issues that have surrounded prerandomization since its inception in a historic trial. Conventional and Zelen's randomization are then compared with other means to provide and verify care in the context of clinical uncertainty. RESULTS: The major problem with conventional randomization is that consent is requested for 2 management options, one of which the patient will not receive. The problem with prerandomization is that treatment is allocated before the patient has consented to trial participation. Prerandomization may trade recruitment difficulties for excessive crossovers. However, other ways to practice under uncertainty and verify patient outcomes, such as case series and registries, are more ethically and scientifically problematic. CONCLUSIONS: Until the ethical functions of randomized allocation of selected treatment options in the care of patients are recognized by the neurovascular community, Zelen's prerandomization may help recruitment into difficult trials and contribute a means to provide best possible care in the presence of uncertainty.

Separation of Craniopagus Twins.

Separation of craniopagus twins is fraught by ethical issues. The surgery is high risk and may involve the sacrifice of one twin. We review surgical successes in separation of craniopagus twins and consider ethical and legal concepts affecting the decision to undertake such procedures. Our discussion considers how Gillett's potentiality principle and the concept of moral permissibility may be used to arrive at fair and realistic decisions.

Eloquent Brain, Ethical Challenges: Functional Brain Mapping in Neurosurgery.

Functional brain mapping is an increasingly relied upon tool in presurgical planning and intraoperative decision making. Mapping allows personalization of structure-function relationships when surgical or other treatment of pathology puts eloquent functioning like language or vision at risk. As an innovative technology, functional brain mapping holds great promise but also raises important ethical questions. In this article, recent work in neuroethics on functional imaging and functional neurosurgery is explored and applied to functional brain mapping. Specific topics discussed in this article are incidental findings, responsible innovation, and informed consent.