Background
Purpose: to review the number of genetic testing referrals for breast cancer at the Stratton VA Medical Center and identify barriers that hinder testing, aiming to improve risk reduction strategies and therapeutic options for patients. National guidelines recommend genetic testing for breast cancer susceptibility genes in specific patient populations, such as those under 50, those with a high-risk family history, high-risk pathology, male breast cancer, or Ashkenazi Jewish ancestry. Despite efforts to adhere to these guidelines, several barriers persist that limit testing rates among eligible patients.
Methods
The medical oncology team selected breast cancer as the focus for reviewing adherence to germline genetic testing referrals in the Stratton VA Medical Center. With assistance from cancer registrars, a list of genetics referrals for breast cancer from January to December 2023 was compiled. Descriptive analysis was conducted to assess referral rates, evaluation visit completion rates, genetic testing outcomes, and reasons for non-completion of genetic testing.
Results
During the study period, 32 patients were referred for germline genetic testing for breast cancer. Of these, 26 (81%) completed the evaluation visit, and 11 (34%) underwent genetic testing. Of these, 7 patients had noteworthy results, and 2 patients (6%) were found to carry pathogenic variants: BRCA2 and CDH1. Reasons for non-completion included perceived irrelevance without biological children, need for additional time to consider testing, fear of exacerbating self-harm thoughts, and fear of losing service connection. Additionally, 2 patients did not meet the guidelines for testing per genetic counselor.
Conclusions
This project marks the initial step in identifying barriers to germline genetic testing for breast cancer based on an extensive review of patients diagnosed and treated at a single VA site. Despite the removal of the service connection clause from the consent form, some veterans still declined testing due to fear of losing their service connection. The findings emphasize the importance of educating providers on counseling techniques and education of veterans to enhance risk reduction strategies and patient care. Further research is essential to quantify the real-world outcomes and longterm impacts of improving genetic counseling rates on patient management and outcomes.
