The trajectory of prognostic cognition in patients with advanced cancer: is the traditional advance care planning approach desirable for patients?

Most patients with advanced cancer initially express a desire to be informed of their prognosis, and prognostic discussions between patients and their oncologists can trigger the subsequent trajectory of prognostic cognitions. On the continuum of prognostic cognition, including inaccurate/accurate prognostic awareness (awareness of incurability of cancer, terminal nature of illness or life expectancy) and prognostic acceptance (accepting one's prognosis), patients' perceptions of being informed of their prognosis by oncologists and patients' coping strategy for serious medical conditions regulate prognostic cognitions. However, nearly half of the patients with advanced cancer have poor prognostic awareness, and few patients achieve prognostic acceptance. These phenomena partly act as barriers to participation in advance care planning. When oncologists engage in advance care planning conversations, they must assess the patient's prognostic cognition and readiness for advance care planning. Considering the inaccurate prognostic awareness in a non-negligible proportion of patients and that astatic patients' preferences for future treatment and care are influenced by prognostic cognition, more research on decision-making support processes for high-quality and goal-concordant end-of-life care is needed along with research of advance care planning. In addition to making decisions regarding future medical treatment and care, oncologists must engage in continuous and dynamic goal-of-care conversations with empathic communication skills and compassion from diagnosis to end-of-life care.