Anesthesia choice during breast surgery may influence cancer return years later

NCT ID NCT07689253

Completed Knowledge-focused Sponsor: University of Zurich Source: ClinicalTrials.gov ↗

First seen Jul 08, 2026 · Last updated Jul 09, 2026 · Updated 1 time

Summary

This study follows women who had breast cancer surgery to see if the type of anesthesia they received—propofol or sevoflurane—affects cancer recurrence and survival 5 and 10 years later. Only patients from an earlier trial are included. The goal is to understand whether anesthesia technique can influence long-term outcomes.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If a link is found, it could guide anesthesia choices to improve long-term outcomes for breast cancer patients.
What could go wrong: This is an observational follow-up, not a new treatment test. Results may show no difference between anesthesia types, and the small size limits general conclusions.

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Conditions

The condition(s) this trial relates to.

breast cancer female breast carcinoma Neoplastic Cells, Circulating

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

BREAST CANCER FEMALES CIRCULATING TUMOR CELLS.BREAST FOLLOW UP ANALYSIS

Contacts and locations

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Locations

University Hospital Zurich, Institute of Anesthesiology and Perioperative Medicine

Zurich, Canton of Zurich, 8091, Switzerland

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