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Updated: May 23, 2026

Single-Port Robotic-assisted Transaxillary Breast-conserving Surgery: A Prospective, Single-arm, Non-randomized Phase IIa Clinical Trial
Published on: August 19, 2025
A two-step selection of breast cancer patients candidates for exclusive IORT with electrons: a mono-institutional
1Department of Radiotherapy, IRCCS AUO San Martino - IST - National Institute for Cancer Research, Genoa, Italy. marina.guenzi@istge.it
Aim:
To assess the impact of a two-step multiparameter selection on the actual enrollment of women with breast cancer into a prospective intraoperative radiotherapy (IORT) trial.
Patients And Methods:
From September 2009, a prospective clinical trial was started in order to deliver adjuvant exclusive single -fraction IORT to patients with early breast cancer. To select patients meeting suitable eligibility criteria for the clinical trial, a two-step decision process was developed: at pre-surgical examination (first step) and during surgery (second step).
Results:
A series of 464 patients with breast cancer was analysed: at the first step, out of 464 patients, 333 (71%) were considered eligible for the IORT protocol; at the second step, out of 333 patients, 199 (60%) met the eligibility criteria and received the IORT fraction according to the criteria of the controlled trial.
Conclusion:
In our experience, the ultimate rate of patients who enrolled in the IORT clinical trial after the two-step decision process was 43%.

