Variation in Practice of the Diagnostic Workup of Asymptomatic Patients Diagnosed with Invasive Breast Cancer.

Abstract

Breast cancer is frequently diagnosed, yet variation remains in terms of practice patterns in presurgical workup. We sought to determine factors associated with this variation. An anonymous web-based survey was distributed to surgeons regarding their practices. Statistical analyses were conducted using SPSS. A total of 253 surgeons responded to the survey. 17.0% were in academic practice, 37.5% were hospital employed, and 41.5% were in private practice. 53.3% claimed that >50% of their practice was breast related. Surgeons were asked how often they would use various tests in the workup of an otherwise healthy asymptomatic patients, presenting with a non-palpable mammographic abnormality and a core needle biopsy showing invasive breast cancer. 23.5% stated that they always would obtain a breast ultrasound, 17.2% stated that they never would. 12.8% stated that they never order a breast MRI; 4.1% always would. Workup of patients did not vary significantly based on number of years in practice nor practice setting. However, those whose practice was >50% breast were more likely to state that they would always order a breast ultrasound (32.5 vs. 12.9%, p < 0.001), and less likely to state that they would never order a breast MRI (3.4 vs. 25.8%, p < 0.001). However, the proportions of surgeons who would always order a breast MRI were similar in the two groups (3.4 and 3.2%, respectively). These data highlight the lack of uniformity in the workup of asymptomatic patients presenting with non-palpable breast cancers, pointing to potential areas for improving value by minimizing variability.