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1136 Uptake of risk-reducing salpingo-oophorectomy and gynaecologic surveillance among germline BRCA pathogenic variant carriers: a prospective study
  1. Alessandra Inzoli1,
  2. Serena Negri1,
  3. Cristina Dell’Oro1,
  4. Clarissa Costa1,
  5. Liliana Marchetta1,
  6. Mariaclara Boccadutri1,
  7. Jasmine Corti1,
  8. Simona Fumagalli1,
  9. Gaia Roversi1,2,
  10. Elena Maria Sala2,
  11. Chiara Celi3,
  12. Valentina Rossi4 and
  13. Robert Fruscio1,5
  1. 1University of Milan-Bicocca, Milan, Italy
  2. 2Medical Genetics Unit, IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
  3. 3Clinical Psychology Unit, IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
  4. 4IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy
  5. 5Gynaecology Unit, IRCCS Fondazione San Gerardo dei Tintori, Monza, Italy


Introduction/Background Risk-reducing salpingo-oophorectomy (RRSO) is recommended by international guidelines in women with BRCA1/2 germline pathogenic variants (PV) to prevent ovarian cancer. Despite the solid recommendation, women frequently refuse surgery and uptake rates reported in the literature are diverse. This study analyses the uptake rate of RRSO in BRCA 1/2 PV-carriers referred to a specialised referral centre for first counselling and investigate personal factors linked to the decision.

Methodology This is a single-centre prospective study of BRCA1/2 PV-carriers referred for the first counselling to IRCCS Fondazione San Gerardo de’ Tintori (Monza, Italy) between January 2010 and May 2023. Depending on individual characteristics, women were either proposed RRSO or surveillance, consisting of ultrasound and CA125 measurement twice per year according to Regional guidelines. Women within the centre have access to a clinical psychologist, a nutritional consult and treatment of menopausal atrophy with diode vaginal laser. The primary endpoint of the study was the uptake rate of RRSO. The secondary objective was to evaluate the main reasons for refusing surgery.

Results Among the 287 women included, surgery was proposed to 205 women either at first counselling (Flowchart, Panel A) or during surveillance (Flowchart, Panel B) and was accepted by 197, with an uptake rate of 96,1%. 17,25% of women met the psychologist before or after surgery. The main reasons for refusing RRSO were fear of iatrogenic menopause and childbearing desire.

Conclusion This study shows a high uptake rate of RRSO in BRCA PV-carriers. We believe that the presence of a dedicated outpatient clinic with a multidisciplinary team contributes decisively to our results. Gynecologic surveillance, as though not beneficial in terms of oncological prevention, may play a significant role in encouraging women with BRCA PV to opt for risk-reducing surgery.

Disclosures No disclosures.

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