Objectifs
To critically analyze current evidence comparing cryoablation and lumpectomy in early-stage breast cancer, focusing on oncologic outcomes, patient selection, procedural implications, and future positioning within breast cancer management.
Matériel et méthode
A structured review of contemporary literature was conducted to evaluate cryoablation as primary therapy in early-stage breast cancer and to compare outcomes with lumpectomy. Peer-reviewed studies from the last 15 years were screened, with particular focus on prospective multicenter trials, including ICE3 and FROST. Outcomes analyzed included local recurrence, patient selection criteria, tumor characteristics (size, receptor status, nodal status), procedural characteristics, complications, and imaging follow-up. Evidence was synthesized qualitatively without statistical pooling.
Résultats
- Management of early breast cancer has progressively shifted toward de-escalation strategies, with cryoablation emerging as a minimally invasive alternative to lumpectomy in carefully selected patients.
- For curative intent, eligible patients include : women ≥50 years with unifocal, ultrasound-visible invasive ductal carcinoma ≤1.5-2 cm, low-to-intermediate grade, hormone receptor-positive, clinically node-negative disease, without extensive DCIS or lobular histology.
- For palliative intent, cryoablation may be considered in poor surgical candidates, patients who failed standard therapy, or those unable to tolerate surgery.
- Across studies focusing on primary curative intent , tumor ablation success rates range from 85 to 100% for invasive breast carcinoma (IBC) < 2 cm, and up to 100% success for IBC <1cm.
- Post cryoablation follow up imaging is critical to confirm adequate ablation and monitor for potentiel tumor recurrence. It is essential to recognize the expected post ablation findings to differentiate them from residual or recurrent cancer.
- Despite these encouraging results, important challenges remain. Long-term recurrence data are limited compared with surgical cohorts. The absence of surgical margins raises questions regarding residual microscopic disease and accurate pathologic staging. Moreover, patient selection remains critical, requiring strict imaging-pathologic concordance and multidisciplinary evaluation.
Conclusion
Current evidence suggests that cryoablation should not be viewed as a universal replacement for lumpectomy, but rather as a complementary option in specific clinical scenarios, including low-risk tumors, elderly patients, or those unfit for surgery. As de-escalation strategies continue to reshape breast oncology, defining the appropriate boundaries between surgery and image-guided therapy will require robust comparative trials and long-term outcome data.
- Lumpectomy remains the reference standard in early breast cancer.
- Cryoablation shows encouraging short- and mid-term results in carefully selected patients.
- Long-term oncologic validation and strict multidisciplinary selection are essential before broader adoption.