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Updated: Jun 16, 2026

Single-Port Robotic-assisted Transaxillary Breast-conserving Surgery: A Prospective, Single-arm, Non-randomized Phase IIa Clinical Trial
Published on: August 19, 2025
Patient reported outcomes associated with multiple approaches to Level 1 oncoplastic breast surgery
Olivia Inez Solano1, Sara Klick2, Chris Baliski3
1BC Cancer - Surgical Oncology Research Program, 1708 Dolphin Ave, Kelowna, B.C., V1Y 9J7, Canada; School of Medicine, University of Limerick, Castletroy, Limerick, V94 T9PX, Ireland.
Advanced oncoplastic breast surgery (aOBS-1) offers comparable patient-reported outcomes to standardized approaches (sOBS-1), even with larger tumors. This suggests advanced techniques maintain patient satisfaction and well-being in breast conserving surgery.
Area of Science:
- Oncology
- Plastic Surgery
- Patient-Reported Outcomes
Background:
- Oncoplastic breast surgery (OBS) expands breast conserving surgery eligibility.
- Impact of OBS techniques on patient satisfaction and quality of life is not fully understood.
- Level 1 OBS, removing <20% of breast volume, has variable technical approaches.
Purpose of the Study:
- To compare patient-reported outcomes (PROs) between standardized (sOBS-1) and advanced (aOBS-1) level 1 oncoplastic breast surgery.
- To evaluate the influence of surgical technique on satisfaction and well-being after OBS.
Main Methods:
- Prospective evaluation of 58 patients undergoing sOBS-1 or aOBS-1.
- Utilized the BREAST-Q questionnaire (pre-op and 1-year post-op) assessing Satisfaction with Breasts (SatBr), Physical Well-being (PhWb), and Psychosocial Well-being (PsyWb).
- Linear regressions analyzed relationships between surgical approach and BQ scores.
Main Results:
- 43 patients had sOBS-1, 15 had aOBS-1; groups were similar in age and BMI.
- aOBS-1 group had larger tumors (median 21mm vs 12mm; p=0.0001).
- Tumor size negatively impacted SatBr (p=0.018), but no significant differences in BQ domains were found between sOBS-1 and aOBS-1 groups.
Conclusions:
- Advanced level 1 OBS (aOBS-1) yields comparable patient-reported outcomes to standardized methods.
- Surgical technique does not significantly alter satisfaction or well-being despite differences in tumor size.
- aOBS-1 is a viable option for patients with larger tumors undergoing OBS.
