Abstract PO2-26-06: Prognostic factors pregnancy associated breast cancer: one year versus two years

Abstract

Abstract Aims: The trend of delayed delivery, the number of women with breast cancer during a pregnancy or in the years after pregnancy is expected to increase Pregnancy breast cancer confers a worse prognostic. Study if the interval pregnancy breast cancer more one year to two years influences the prognostic factors like pregnancy breast cancer one year after Methods: Study 1186 patients with breast cancer and prognostic factors. Analyze delivery before breast cancer, and the interval of last childbirth, one year, more one year to two years and more two years, with prognostic factors (nodes, estrogen receptor, progesterone receptor, HER2 receptor and Ki 67) Results: Breast cancer pregnancy one year after were in 37 patients, more one year to two years in 25 patients and more two years in 491 patients. Positive nodes one year after were in 21 patients, more one year to two year were in seven patients (p < 0'05), and more two years in 155 patients (p=ns). There are not differences (p=ns) in estrogen receptor, progesterone receptor and Ki67, one year versus more one year to two years and more to two years. HER2 and histologic grade there are not differences (p=ns) in one year after versus more one year to two years, but there are differences (p < 0’05) versus more two years Conclusion: Interval last childbirth breast cancer more than one year to two years influences prognostic factors for later breast cancer, and not have differences with prognostic factors than pregnancy one year after Citation Format: Maxim Izquierdo, Sonia Baulies, Carmen Ara, Maria Garcia, Fransec Fargas, Rafael Fabregas, Fransec Tresserra, Pere Barri S. Prognostic factors pregnancy associated breast cancer: one year versus two years [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO2-26-06.