End-of-life communication and decisional conflict among surrogate decision- makers considering invasive respiratory support for patients with cancer and respiratory failure: a cross-sectional study

When a person with advanced cancer develops sudden, severe trouble breathing, the medical team often faces a critical choice: whether to use a machine to breathe for them. This machine, known as invasive respiratory support, can keep a patient alive for a time, but it is a heavy burden that requires intensive care and may not lead to a full recovery. In these moments of crisis, the person who must decide is rarely the patient themselves. Instead, it falls to a family member or close friend, known as a surrogate decision-maker, to choose a path forward. These loved ones must weigh the hope of life against the reality of suffering, often while knowing very little about the patient's true wishes or the likely outcome. The emotional weight of this choice is immense, and the uncertainty can leave them paralyzed, unsure if they are making the right call. This state of being stuck between difficult options, where the right answer is unclear and the stakes are life and death, is what researchers call decisional conflict. Understanding how to ease this burden is vital, because when families are overwhelmed by doubt, the quality of care they choose and their own emotional well-being can suffer.

A team of researchers in Sichuan Province, China, set out to understand exactly how much this conflict weighs on families facing these decisions. They focused on 307 family members who were acting as surrogates for cancer patients in an intensive care unit who were struggling with respiratory failure. Between January and November 2024, the researchers asked these family members to fill out a detailed questionnaire designed to measure their level of uncertainty and stress regarding the decision to use life-support machines. The study looked at many different factors, such as how much the family knew about the disease, whether they had talked to the patient about end-of-life wishes before, and whether they had any personal connections to the medical field. The goal was to find out which specific circumstances made the decision feel hardest and which might help make it clearer.

The results revealed a startling reality: nearly every family member in the study was struggling with a high level of conflict. The average score of uncertainty was so high that 97.4 percent of the participants fell into the category of having severe decisional conflict. This means that almost everyone felt a deep sense of doubt and difficulty in choosing a course of action. The researchers then looked for the patterns behind this stress. They found that the conflict was not random; it was tied to specific gaps in experience and information. Families felt the most uncertain when the patient had not undergone surgery during their current hospital stay, when the patient had been hospitalized fewer times in the past, and when the family member had no relatives or friends working in healthcare. Perhaps most significantly, the conflict was much higher when the family member did not feel they understood the patient's disease well, or when they had never discussed end-of-life wishes with the patient before the crisis began.

The study suggests that the path to reducing this overwhelming stress lies in preparation and communication. The data showed that families who had previously talked about what the patient wanted, or who had a better grasp of the illness, felt less torn. Similarly, having a connection to the medical world, even through a friend or relative, seemed to provide a buffer against the confusion. The researchers noted that this does not mean surgery itself fixes the problem, but rather that the experience of going through surgery often gives families more exposure to the medical team and a clearer picture of the treatment journey. The findings point to a clear need for doctors to start these difficult conversations much earlier, before a patient's condition becomes critical. By clarifying values and explaining the disease in plain terms while there is still time, medical teams can help families feel more grounded when the moment of decision finally arrives.

This study, conducted at a single specialized cancer hospital, offers a clear snapshot of a very difficult human experience. It does not prove that one specific action will solve the problem for everyone, but it strongly suggests that the feeling of being lost and uncertain is common and predictable. The researchers emphasize that the solution is not to avoid these hard choices, but to support the people making them with better information and earlier conversations. When families are given the chance to understand the situation and express the patient's wishes before a crisis hits, the heavy fog of decisional conflict begins to lift, allowing them to make choices that truly reflect the person they love.