Quality and Safety Imperatives in the Identification and Management of Hereditary Cancer Syndromes.
Kathleen Calzone, Suzanne M Mahon, Patricia Friend
PMID 41846226WHAT IT FOUND
Collecting a detailed family history and pedigree is the first step for nurses to identify patients needing hereditary cancer testing.
Selecting the right person, test, and lab, and counseling about uncertain variants are guidance points, not tested interventions.
Key findings
01For nurses, a comprehensive family history and pedigree are essential for identifying who might benefit from germline biomarker testing and for choosing the most suitable person to test first.
02Variants of uncertain significance are reported in 15% to 32% of patients undergoing germline biomarker testing, and they are not actionable; management is based on personal and family history.
03When the tested patient was relied on to tell relatives, 41% of at-risk family members were tested; first-degree relatives were tested at 43% and second-degree relatives at 22%, while women were tested at 50% and men at 28%.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
This is a narrative review, not a trial or cohort study, so it does not show that these steps improve cancer detection or patient outcomes. The recommendations depend on guidelines and laboratory practices that can change rapidly. Family history is often incomplete or inaccurate, especially when relatives are adopted, estranged, unaware of family details, or when misattributed paternity is present. The cascade testing rates come from a cited meta-analysis, not from this paper's own data, and patient-led dissemination is limited by privacy, relationships, contact information, readiness, and cost. Variant reclassification may take years, and not all laboratories provide updated reports.
Declared interests
The authors have nothing to disclose. No funding source is stated in the supplied text.
The easy way to misread this
Do not read this as proof that nurse-led pedigree collection improves cancer outcomes. It is a narrative review of guidance, and the 41% cascade testing figure comes from a cited meta-analysis, not from this paper's own data.