# Ethics, Shared Decision-Making, and Palliative Care in Vascular Surgery ## Introduction Vascular surgery often involves decisions that have profound consequences for patients’ lives, limbs, and overall quality of life. These decisions are particularly complex because they frequently concern elderly patients with multiple comorbidities, requiring a strong ethical framework to guide care. Shared decision-making (SDM) is essential in this context, ensuring that treatment choices reflect the patient’s values and preferences. Additionally, integrating palliative care addresses symptom burden and enhances quality of life throughout the disease trajectory. ## Ethical Principles in Vascular Surgery ### The Four Pillars of Medical Ethics The foundation of ethical practice in vascular surgery rests on four key principles. Autonomy emphasizes respecting the patient’s right to make informed decisions about their care, including the right to refuse treatment. Beneficence involves acting in the patient’s best interest by carefully weighing the benefits of intervention against potential risks. Non-maleficence, often summarized as “first, do no harm,” requires avoiding interventions where the burdens outweigh the benefits. Lastly, justice pertains to the fair allocation of healthcare resources, ensuring equitable access to care regardless of socioeconomic status, race, or geographic location. ### Ethical Challenges Unique to Vascular Surgery Several ethical challenges are unique to vascular surgery. One major dilemma is deciding between aggressive limb salvage through revascularization versus opting for a primary amputation followed by rehabilitation. Determining when aggressive intervention truly benefits the patient requires careful consideration. Managing asymptomatic disease, such as asymptomatic carotid stenosis or small abdominal aortic aneurysms (AAA), demands clear communication about the risks and benefits of prophylactic interventions. Surgeons must also recognize when interventions are futile—when revascularization cannot achieve meaningful functional outcomes, proceeding may cause more harm than good. Emergency presentations, such as ruptured AAA in patients with advanced dementia or terminal illness, raise difficult questions about the appropriateness of intervention. Furthermore, resource allocation, including operating room time, ICU beds, and the costs of endovascular devices, must be balanced against the likely benefit to the patient. ## Shared Decision-Making ### Definition and Framework Shared decision-making is a collaborative process in which clinicians and patients work together to make healthcare decisions that align with the patient’s values, preferences, and goals. It extends beyond mere informed consent by involving a bidirectional exchange of information. The clinician contributes medical expertise, including diagnosis, prognosis, treatment options, and associated risks and benefits. The patient offers insight into their values, preferences, life context, and goals of care. ### Elements of Effective SDM Effective shared decision-making begins with recognizing that a preference-sensitive decision exists. Clinicians must explicitly acknowledge this to engage the patient meaningfully. Next, all reasonable alternatives should be discussed, including observation, medical management, and non-operative care. Exploring patient preferences is crucial; clinicians should ask what matters most to the patient, whether it is longevity, functional independence, pain control, or overall quality of life. Assessing understanding through techniques like teach-back ensures that the patient comprehends the information provided. Finally, the clinician and patient collaboratively arrive at a treatment plan that reflects the patient’s informed preferences. ### Decision Aids Standardized decision aids are valuable tools that present treatment options with balanced information about outcomes. These aids are available for procedures such as AAA repair (comparing open surgery, endovascular aneurysm repair [EVAR], and observation), carotid revascularization, and chronic limb-threatening ischemia (CLTI) management. They improve patient knowledge, reduce decisional conflict, and increase alignment between treatment choices and patient values. Additionally, the Vascular Quality Initiative (VQI) risk calculators provide individualized risk estimates that support SDM conversations. ### Prognostic Communication Prognostic communication should be honest and compassionate, addressing expected outcomes including functional prognosis, not just survival. Discussions should include best-case, worst-case, and most likely scenarios, framed in absolute terms—for example, stating “3 in 100 patients” rather than “3% risk” to enhance clarity. It is important to avoid both unwarranted optimism and therapeutic nihilism to foster realistic expectations. ![Shared decision-making framework for vascular surgery treatment planning](images/sdm-framework-vascular.jpg) ## Palliative Care in Vascular Surgery ### Definition and Scope Palliative care is specialized medical care focused on symptom relief, quality of life, and support for patients with serious illness. It is not synonymous with end-of-life care; rather, it is appropriate at any stage of illness and can be provided alongside curative or life-prolonging treatments. Primary palliative care involves basic symptom management and goals-of-care conversations conducted by the vascular surgeon. Specialty palliative care includes consultation for complex symptom management, psychosocial support, and advance care planning. ### When to Integrate Palliative Care Palliative care should be integrated for patients with CLTI who have limited revascularization options due to non-reconstructable disease. It is also appropriate for patients facing major amputations with anticipated functional decline, high-risk individuals undergoing complex aortic or lower extremity surgery, and those with multiple comorbidities and limited life expectancy. In decisions regarding primary amputation, palliative care can support patients through both the decision-making process and postoperative adjustment. Additionally, palliative care is valuable when patients undergo recurrent interventions without meaningful improvement in symptoms or function. ### Symptom Management Managing ischemic rest pain requires a multimodal analgesic approach, including gabapentin or pregabalin to address neuropathic components, carefully titrated opioids, regional nerve blocks, and spinal cord stimulation. Wound care and odor management are essential for non-healing ischemic wounds. Depression and anxiety should be screened using tools like the PHQ-2 or PHQ-9 and treated with selective serotonin reuptake inhibitors (SSRIs), counseling, or psychiatric referral as needed. Fatigue, sleep disturbances, deconditioning, and existential or spiritual distress also require attention in comprehensive palliative care. ### Advance Care Planning Advance care planning involves documenting advance directives, including healthcare power of attorney and living wills. Discussions about code status and resuscitation preferences are particularly important before high-risk procedures. Clarifying goals of care helps determine whether the patient seeks cure, life prolongation, symptom relief, or comfort only. These goals should be revisited at key transitions, such as new diagnoses, failed interventions, or major complications. ![Integration of palliative care across the trajectory of vascular disease management](images/palliative-care-vascular-trajectory.jpg) ## Specific Clinical Scenarios ### The Non-Ambulatory Patient with CLTI In non-ambulatory patients with CLTI, revascularization may promote wound healing but does not restore functional mobility. When rehabilitation is not feasible, primary amputation combined with comfort care may be more appropriate. Shared decision-making must explore the functional outcomes the patient hopes to achieve to guide treatment planning. ### Ruptured AAA in the Elderly or Frail Operative mortality for ruptured AAA in patients over 80 years old exceeds 50%, and survivors often face prolonged ICU stays with significant functional decline. Honest prognostic communication is essential before proceeding to surgery. Non-operative management with comfort care is a valid and compassionate alternative in this population. ### Withdrawal of Life-Sustaining Treatment When postoperative complications result in prolonged ICU care without meaningful recovery, goals-of-care discussions should be initiated promptly. The ethical and legal frameworks supporting withdrawal of life-sustaining treatment are well established. Palliative care consultation can assist in managing symptoms during the dying process. ### Managing Surgical Futility Surgical futility can be categorized as physiologic futility, where the intervention cannot achieve the intended physiologic goal, or qualitative futility, where the intervention may achieve a physiologic goal but cannot provide a quality of life acceptable to the patient. Surgeons are not ethically obligated to perform futile interventions, but transparent communication with patients and families is essential. When conflicts remain unresolved, consultation with an ethics committee is appropriate. ![Decision-making algorithm integrating goals of care, prognosis, and treatment options for CLTI](images/clti-goals-of-care-algorithm.jpg) ## Key Clinical Pearls Shared decision-making represents the ethical standard for preference-sensitive decisions in vascular surgery and extends beyond simply obtaining informed consent. Palliative care should be integrated early in the disease course rather than reserved solely for end-of-life situations. Honest prognostic communication must include discussions of functional outcomes in addition to survival to enable truly informed patient decisions. Non-operative management and comfort care are valid treatment options that should always be discussed alongside surgical and endovascular interventions. Finally, advance care planning should be completed before every high-risk vascular procedure to ensure patient preferences are respected. ## References 1. Defined, Defined, et al. "Shared decision-making in vascular surgery." *J Vasc Surg*. 2018;68(5):1607-1615. 2. Defined, Defined, et al. "Palliative care in vascular surgery: an unmet need." *J Vasc Surg*. 2019;70(6):2062-2068. 3. Defined, Defined, et al. "Decision aids for vascular surgery: a systematic review." *J Vasc Surg*. 2020;71(3):1073-1081. 4. Beauchamp TL, Childress JF. *Principles of Biomedical Ethics*. 8th ed. Oxford University Press; 2019.