Disparities in Radiotherapy: Practice Patterns Analysis of DIBH Use in Non-English Speakers

Abstract

<h3>Purpose/Objective(s)</h3> To examine current practice patterns in non-English speaking breast cancer patients undergoing Deep Inspiratory Breath Hold (DIBH). We hypothesize that disparities in DIBH utilization exist between English and non-English speaking patients. <h3>Materials/Methods</h3> An anonymous, voluntary online survey was distributed to residency program coordinators of U.S. radiation oncology departments to survey their faculty and recent graduates. Eligibility was limited to board-certified radiation oncologists who have treated breast cancer within the prior 6 months. <h3>Results</h3> There were 66 respondents, 50 of whom were eligible. 70% (n = 35) of eligible respondents were from academic sites. Slightly over half (52%) of respondents reported that at least 10% of their patients were non-English speaking. Most offered DIBH at their institution (92%) and of those, 82% of responding radiation oncologists used DIBH for at least a quarter or more of their breast cancer patients. Nearly all of those who use DIBH (98%) used coaching at the time of simulation, with about a third (37%) answering they would be "less likely" to utilize DIBH for non-English speaking patients. If DIBH is used for non-English speaking patients, 86% would take into consideration potential language barriers for proper execution of DIBH. However, slightly over one-half of respondents had an interpreter present 76-100% of the time at CT simulation. At the first DIBH treatment, 31% used an interpreter 76-100% of the time. And at each subsequent treatment, 11% used an interpreter 76-100% of the time. <h3>Conclusion</h3> Disparities in the application of DIBH exist despite its established utility in reducing cardiac dose. This study provides evidence that language barriers may impact physician treatment practices from initial consideration of DIBH to subsequent delivery. Even within a limited sampling of self-reported responses, this data suggests that breast cancer treatment considerations and subsequent execution are negatively affected in non-English speaking patients.