Based on 'Choosing Wisely' guidelines, surgeons can skip sentinel lymph node biopsy in women over 70 with small, hormone receptor-positive, HER2-negative breast cancer. This de-escalates treatment by avoiding an unnecessary procedure with a very low likelihood of finding cancer spread, minimizing potential complications for patients.

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The negative ANSA-RAD trial, when contrasted with the positive STAMPEDE trial, demonstrates that patient selection is paramount in adjuvant therapy. The difference in outcomes was driven by risk definition, not the drug. This reinforces that "negative" trials are clinically vital for defining which patient populations do not benefit, preventing widespread overtreatment.

Breast cancer specialists advocate for patients to meet the entire care team before surgery to create a comprehensive plan and reduce anxiety. However, insurance carriers often create administrative and financial barriers that prevent these coordinated, upfront consultations, leading to a more fragmented and stressful patient experience.

For patients with oligometastatic disease who achieve a deep PSA response (e.g., to zero), oncologists consider finite treatment durations (e.g., 18-24 months) followed by observation. This "do less harm" approach challenges the standard of continuous therapy until progression, aiming for long-term treatment-free intervals.

While cosmetic results are a significant consideration in modern breast surgery, the primary, non-negotiable goal is eradicating the cancer to prevent recurrence. Surgeons emphasize that aesthetic goals, while a 'very close second,' must not compromise the thoroughness of the cancer treatment, a crucial distinction for patients and providers.

When a sentinel lymph node biopsy is skipped, radiation oncologists lack crucial staging information. This can make them hesitant to recommend less-invasive partial breast radiation, even if a patient otherwise qualifies. They may instead recommend whole breast radiation to treat any potential, unconfirmed microscopic disease in the axilla.

While primarily known for guiding radiation, surgeons place clips in the lumpectomy cavity for their own future reference. These markers are critical for guiding re-excision if margins are positive and help radiologists accurately monitor the surgical site for recurrence on future mammograms, distinguishing scar tissue from new concerns.

Modern breast cancer treatment has shifted from a 'one-size-fits-all' aggressive approach to a highly individualized one. By de-escalating care—doing smaller surgeries, minimizing radiation, and sometimes omitting chemotherapy or lymph node biopsies—clinicians can achieve better outcomes with fewer long-term complications for patients with favorable disease characteristics.

While a positive ctDNA test clearly signals the need for adjuvant therapy, a negative result is less actionable for deciding initial treatment. The key prognostic value comes from being *serially* undetectable over time, information that is not available when the immediate post-surgery treatment decision must be made.

Experts are divided on the optimal strategy for CT-DNA negative patients post-surgery. One side advocates for monitoring to spare patients from unnecessary treatment toxicity, while the other questions if this delay is non-inferior to immediate adjuvant therapy, a critical question not yet answered by trials.

The successful KEYNOTE-564 trial intentionally used a pragmatic patient selection model based on universally available pathology data like TNM stage and grade. This approach avoids complex, inconsistently applied nomograms, ensuring broader real-world applicability and potentially smoother trial execution compared to studies relying on more niche scoring systems.

Oncologists Omit Sentinel Lymph Node Biopsy for Low-Risk Breast Cancer Patients Over 70 | RiffOn