Does Anesthesia Technique Impact on the Long-term Outcome 5 and 10 Years After the First Intervention in Primary Breast Cancer Surgery? A Follow-up Analysis.

Goal of this observational study is to analyze data about cancer recurrence rates 5 and 10 years after primary breast cancer surgery with propofol or sevoflurane anesthesia. Only patients who were enrolled in the primary interventional trial can participate.

NCT Number	NCT07689253
Lead Sponsor	University of Zurich Collaborators: University Hospital, Zürich
Conditions	Breast Cancer Females, Circulating Tumor Cells.Breast, Follow Up Analysis
Enrollment	161 participants
Start Date	2025-09-01
Primary Completion	2026-01-15 (estimated)
Study Completion	2026-04-30 (estimated)
Updated on ClinicalTrials.gov	2026-07-08