Single-Port Robot-Assisted Nipple-Sparing Mastectomy: Main Analysis of a Retrospective Multicenter Study (SPROUT,...

Area of Science:

• Oncology
• Surgical Innovation
• Minimally Invasive Surgery

Background:

• Single-port robotic systems are increasingly used in breast surgery.
• These systems offer minimally invasive and cosmetically superior mastectomy options.

Purpose of the Study:

• To evaluate surgical outcomes and operative efficiency of single-port robotic-assisted nipple-sparing mastectomy (SP-RNSM).
• To assess early experiences with SP-RNSM across multiple institutions in Korea.

Main Methods:

• A multicenter retrospective study involving 428 patients undergoing SP-RNSM between January 2018 and November 2023.
• Data collected included clinicopathologic characteristics, operative variables (operative time), and postoperative outcomes.

Main Results:

• 81.5% of patients had invasive carcinoma; 66.1% underwent direct-to-implant reconstruction.
• Mean total operative time was 333.5 minutes. Lymph node metastasis, heavier breast weight, and no tumescent solution predicted longer breast surgeon time.
• Postoperative complications were minimal (80% without complications), with seroma (10.5%) being most common. Reoperation rate was 2.8%.

Conclusions:

• Single-port robotic-assisted nipple-sparing mastectomy (SP-RNSM) is a feasible and safe breast cancer surgical approach.
• The procedure demonstrates favorable surgical outcomes and a low rate of complications.