Older patients with acute myeloid leukemia (AML) tend to overestimate not only the risks of treatment, but also their likelihood of cure, according to the results of a 100-patient longitudinal study presented at the Palliative and Supportive Care in Oncology Symposium.
Compared with what their oncologists thought, patients were significantly more likely to believe they would die from treatment, said senior study author Areej El-Jawahri, MD, of Massachusetts General Hospital in Boston.
Yet when surveyed again 1 month later, they were significantly more likely to overestimate the chances of being cured, versus the chances of cure given by their oncologists.
“We really need interventions to facilitate communication and ensure accurate prognostic understanding in this patient population, where understanding the treatment risk and prognosis can have a significant effect on their treatment choices and treatment decisions,” Dr. El-Jawahri said in a press conference from the symposium, which was cosponsored by AAHPM, ASCO, ASTRO, and MASCC.
Patients were first surveyed within 72 hours of starting chemotherapy.
At that point, 91% of patients said it was somewhat likely (63%) or extremely likely (28%) they would die as a result of their treatment, but among their oncologists, only 22% said death due to treatment was somewhat likely, and none thought it was very likely, according to the presented data.
A much different picture emerged 1 month later, when 90% of patients said they were somewhat or very likely to be cured of their leukemia, while only 26% of physicians said it was somewhat likely for the patient to be cured.
For both the question on treatment risk and the question on cure potential, the differences between patient responses and physician responses was significant (P less than .001), according to Dr. El-Jawahri.
Of note, half of the patients (n = 50) received intensive chemotherapy, while the other half received nonintensive (that is, palliative) chemotherapy. Patients receiving palliative therapy were even more likely to overestimate their chances of cure, Dr. El-Jawahi said.
This study highlights how stress and anxiety might shape a patient’s perception of treatment and prognosis, and provides new evidence that “accurate knowledge” can lead to “efficiencies on both sides of this [doctor-patient] interface,” said Andrew S. Epstein, MD, of Memorial Sloan-Kettering Cancer Center, New York.
A shared understanding of prognosis and treatment risk between clinician and patient is “crucial in informed consent” and can help patients make better-informed decisions with their doctor, said Dr. Epstein, who was not involved with the study.
This study was funded by a grant from the National Cancer Institute. Dr. El-Jawahri, the senior author, reported no relevant financial disclosures.