A 65-year-old woman is admitted with a diagnosis of a large bowel obstruction. She has not seen a physician since childhood. Computed tomography demonstrates diverticular stricture with extensive proximal dilation of the descending colon. She does not want surgery and is deemed mentally competent by psychiatry. Her husband and 2 children wish for her to proceed with surgical treatment. Her case is presented to the hospital ethics committee, who agree she has the right to make her own decision. What is the recommended next step?