Development of a Delphi-based training course on physical examination of AVF led by vascular access coordinators: A pre-post study of provincial dialysis nurses

For millions of people around the world, life depends on a machine that cleans their blood when their kidneys can no longer do the job. This process, called hemodialysis, requires a reliable gateway into the body's circulatory system. The most trusted gateway is a connection made between an artery and a vein, usually in the arm, known as an arteriovenous fistula. Medical guidelines consider this connection the gold standard because it is safer and lasts longer than other options. However, like any vital part of the body, this connection can develop problems. It can narrow, clot, or become inflamed, which threatens the patient's ability to receive treatment. Catching these issues early is crucial, and the first line of defense is often a simple physical check-up performed by a nurse. By feeling the pulse, listening to the flow of blood, and observing the skin, a skilled nurse can spot trouble before it becomes an emergency. Yet, for this check-up to work, the person performing it must be highly trained, and until recently, that training has been inconsistent.

A team of researchers in Hebei Province, China, set out to fix this gap by creating a structured training program led by specialized coordinators. They focused on a group of sixty nurses working in thirty different dialysis units across the province. The goal was to see if a specific, standardized course could turn these nurses into experts at checking the health of the fistula. The researchers did not just teach a list of facts; they built a complete curriculum from the ground up. First, they gathered a group of twenty experts, including doctors and senior nurses from six different regions, to agree on exactly what should be taught. Using a method where experts vote on ideas over several rounds, they refined a list of forty-four specific skills and knowledge points. These ranged from understanding the basic anatomy of the arm to recognizing the subtle signs of a developing clot. Once the curriculum was finalized, the sixty nurses underwent a six-and-a-half-day intensive training session. The learning was active and hands-on, involving small groups, real patients, and practice sessions where nurses had to identify problems on their own.

The results of this training were immediate and measurable. Before the course began, the nurses' average score on a test of their knowledge was just under fifty out of one hundred. After the training, that average jumped to over seventy. More importantly, their ability to find actual problems in patients improved dramatically. When asked to examine six standard patients with known issues, the nurses correctly identified the complications in only about thirty percent of the cases before the training. After the course, their success rate rose to nearly seventy percent. This means that with the new training, the nurses were able to spot nearly twice as many hidden dangers in the patients' access points. The training also changed how the nurses thought and learned. Their ability to think critically about a patient's condition and their confidence in teaching themselves new information both increased significantly. Every single nurse who participated said they were satisfied with the course, and all of them agreed that this kind of standardized physical check-up is essential for patient safety.

The study suggests that when nurses receive a unified, expert-led education, they become much better at protecting their patients' lifelines. The researchers found that the training did more than just fill the nurses' heads with information; it gave them the practical skills to detect trouble early and the confidence to act on it. By using a coordinator to lead the process, the team ensured that the training was consistent and high-quality. The findings indicate that this approach is a viable way to improve care across a wide region. While the study was limited to one province and a specific group of nurses, the clear improvements in knowledge and skill suggest that similar programs could be valuable elsewhere. The work highlights that a simple, well-taught physical examination is a powerful tool, capable of preventing serious complications and keeping the dialysis process running smoothly for those who depend on it.