RT Journal Article SR Electronic T1 Breast Cancer Surgery During the COVID-19 Pandemic: An Observational Clinical Study of the Breast Surgery Clinic at Ospedale Policlinico San Martino – Genoa, Italy JF In Vivo JO In Vivo FD International Institute of Anticancer Research SP 1667 OP 1673 DO 10.21873/invivo.11959 VO 34 IS 3 suppl A1 FREGATTI, PIERO A1 GIPPONI, MARCO A1 GIACCHINO, MARIA A1 SPARAVIGNA, MARCO A1 MURELLI, FEDERICA A1 TONI, MARIA LUISA A1 CALABRÒ, MARIA TERESA A1 ORSINO, LINA A1 FRIEDMAN, DANIELE YR 2020 UL http://iv.iiarjournals.org/content/34/3_suppl/1667.abstract AB Background: COVID-19 pandemic required a marked re-allocation of healthcare resources, including at Breast Units. A patient-tailored program was developed to assess its efficacy regarding prevention of COVID-19 infection among patients with breast cancer undergoing surgery and healthcare workers (HCWs). Patients and Methods: From March 9th to April 9th 2020, 91 patients were selected for elective surgery by means of: i) Pre-hospital screening aimed at avoiding hospitalization of symptomatic or suspicious COVID-19 patients, and ii) prioritisation of surgical procedure according to specific disease features. Results: Eighty-five patients (93.4%) were fit for surgery, while five patients (5.5%) were temporarily excluded through ‘telephone triage’; another two patients were excluded at in-hospital triage. A total of 71 out of 85 patients (83.5%) were diagnosed with invasive cancer, most of whom were undergoing breast-conserving surgery (61 out of 85 patients, 71.8%). The mean in-hospital stay was 2.2 days (SD=0.7 days). After hospital discharge, no patient needed re-admission due to post-operative complications; moreover, no COVID-19 infection among patients or HCWs was detected. Conclusion: Safe breast cancer surgery was accomplished for both patients and HCWs by means of a careful preoperative selection of patients and in-hospital preventative measures. This screening program can be transferred to high-volume Breast Units and it may be useful in implementing European Community recommendations for prevention of COVID-19 infection.