The Pace of Transradial Procedural Learning
The uptake of transradial coronary intervention (TRI) in the Unites States (U.S.) has been slow relative to other countries.1 Fortunately, adoption appears to be on the rise with a steady increase in the overall percentage of TRI since 2009.2 Learning curves, similar to adoption curves, are generally not linear. When learning or proficiency is plotted against time, progress may be slow at first, and then there is a period of rapid change followed by an apparent plateau.3 Although small improvements are continuously made after the plateau, the progress may not be visible until there is an extended period of observation. Surprisingly, for many different motor or procedural skills the shape of the learning curve is similar and there is less variance in performance as experience increases.4 While there are numerous studies looking at the benefits of TRI on outcomes, there has been very little formal study of what it takes to become a proficient TRI operator. Several factors may influence the slope of the TRI learning curve including the cumulative interventional experience of the operator and availability of resources for training.
- Received April 9, 2014.
- Accepted April 18, 2014.