Application of flexible ureteroscope simulation training based on the PDCA quality cycle in urology clinical teaching

In the world of modern medicine, learning to perform surgery is a high-stakes journey. For decades, the standard path for medical students has been to watch, then assist, and finally perform procedures on real patients under supervision. This "see one, do one" approach works, but it carries an inherent risk: the first time a student tries a delicate maneuver, it happens on a living person. In urology, the branch of medicine dealing with the urinary system, this risk is particularly acute because many procedures involve navigating narrow, winding tubes inside the body. To address this, medical educators have increasingly turned to simulation. Much like a flight simulator allows a pilot to practice landing in a storm without leaving the ground, a surgical simulator lets a student practice complex maneuvers in a safe, virtual environment where mistakes have no physical consequences. This shift is part of a broader move toward competency-based education, where the goal is not just to spend a certain amount of time in a classroom, but to prove that a student can actually do the work.

A team of researchers at the Second Affiliated Hospital of Anhui Medical University recently explored how to make this simulation training even more effective for undergraduate medical students. They focused on a specific procedure called flexible ureteroscopy, a routine technique used to treat kidney stones and tumors by guiding a thin, bendable scope through the body's natural passages. The challenge they faced was that undergraduate students typically spend only two weeks in a urology rotation, a blink of an eye in the timeline of medical training, leaving them with very little hands-on experience. To solve this, the researchers designed a study to test a new teaching method that combined high-tech simulation with a structured management framework known as the PDCA cycle. This framework is a simple, four-step loop used to improve processes: Plan, Do, Check, and Act. The team wanted to see if wrapping their simulation training in this cycle would help students learn faster and better than traditional teaching methods.

The study involved seventy-two fifth-year medical students who were rotating through the urology department. The researchers split them into two groups. The control group received the standard teaching approach, which consisted of weekly lectures and daily rounds where tutors explained cases and demonstrated skills on real patients. The experimental group, however, followed a different path. Their training was built around the PDCA cycle and centered on a flexible ureteroscopy simulator. In the "Plan" phase, tutors designed a curriculum specifically for beginners, focusing on the basics of the procedure, how to prepare a patient, and how to communicate effectively with them. They used role-playing scenarios where students acted out conversations with patients and their families, practicing how to explain risks and ease anxiety before ever touching a tool.

Once the plan was set, the "Do" phase began. The students in the experimental group spent their time on the simulator, a device that recreates the anatomy of the urinary system with high fidelity. They practiced assembling the equipment, guiding the scope through the ureter, and removing stones, all while maintaining strict sterile conditions to prevent infection. Because the environment was virtual, they could repeat these actions as many times as needed without fear of harming a patient. Throughout this process, the tutors acted as guides, watching the students and noting where they struggled. This led to the "Check" phase, where the students were evaluated using two specific tools. One tool, called Mini-CEX, assessed their overall clinical abilities, such as how well they took a patient's history, performed a physical exam, and showed empathy. The other tool, DOPS, focused strictly on the technical skills of the procedure itself, observing everything from how they washed their hands to how they handled the instruments. Finally, in the "Act" phase, the teaching team used the results from these checks to refine the training, adding more practice for difficult skills and updating the simulation cases to be more realistic.

The results of this two-week experiment were clear. When the researchers compared the two groups at the end of the rotation, the students who underwent the PDCA-based simulation training performed significantly better than those in the traditional group. The experimental group scored higher on written tests about the theory of the procedure. More importantly, they scored higher in every single category of the practical assessments. They were better at taking patient histories, performing physical exams, and demonstrating clinical judgment. Their technical skills on the simulator were sharper, and they showed a stronger grasp of sterile techniques and teamwork. Perhaps most notably, the students in the experimental group reported feeling much more confident in their ability to perform operations. They felt more motivated to learn, better at working with their peers, and more satisfied with their overall learning experience.

The researchers concluded that this structured approach successfully bridged the gap between abstract classroom knowledge and the reality of clinical practice. By using the PDCA cycle to organize the training, they created a continuous loop of learning where students practiced, received feedback, and improved in a safe space. The study suggests that for undergraduate students who have very little time to learn complex urological skills, simulation training guided by a quality improvement cycle is a powerful tool. It does not replace the need for real-world experience, but it provides a solid foundation, ensuring that when students eventually step into the operating room, they are better prepared, more confident, and less likely to make preventable errors. The findings offer a promising path forward for medical schools looking to modernize how they teach the next generation of surgeons.