Decisional Capacity Determination In Patients With Cancer

Patients with cancer face many difficult decisions and encounter many clinical situations that undermine decisional capacity. For this reason, assessing decision-making capacity should be thought of at every medical encounter. The culmination of variable disease trajectories, following patients to the end of life, use of high-risk treatments, and other weighty personal decisions require attention to patients' ability to engage in decisions. Oncologists develop meaningful relationships with their patients. This familiarity may lead to forgoing the process of diligently assessing a patient's cognitive ability and/or decisional capacity when important decisions need to be made. While the process may feel like it takes place spontaneously, many subtle and overt details are involved with the decisions around cancer care that require pointed questioning and probing. Thus, there are many ways to fall short in determining decisional capacity. Clinicians are inconsistent in their decisional capacity determinations and generally assume more decisional capacity than the patient has. Consult and referral services such as ethics and psychiatry can help with treatment decisions and with assessing underlying psychosocial and psychiatric conditions. Decisional capacity may fluctuate and requires a variable amount of decisional ability depending on the clinical situation; hence, it is time-specific and decision-specific. This review is intended to provide a summary of key components of decisional capacity while highlighting areas in need of clinical refinement.