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Updated: Oct 14, 2025

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Factors Affecting Time to Surgery in Breast Cancer Patients.

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Preoperative MRI significantly delays breast cancer surgery. Surgeons should consider MRI use to improve timely patient care and reduce time to surgery.

Keywords:
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Area of Science:

  • Oncology
  • Surgical Oncology
  • Health Services Research

Background:

  • Timeliness of care is crucial in breast cancer treatment.
  • Factors influencing time to surgery (TTS) require identification to optimize patient outcomes.
  • Understanding modifiable factors can improve the efficiency of surgical care delivery.

Purpose of the Study:

  • To determine factors affecting time to surgery (TTS) for early-stage breast cancer.
  • To identify potentially modifiable factors that impact the timeliness of surgical intervention.
  • To analyze the influence of preoperative imaging and practice setting on TTS.

Main Methods:

  • Analysis of 583 patients with clinical stage 0-3 breast cancer undergoing partial mastectomy across two clinical trials in ten US centers.
  • Exclusion of patients receiving neoadjuvant therapy; no mandated preoperative workup.
  • Assessment of factors including patient demographics, tumor characteristics, preoperative imaging (ultrasound, MRI), and practice setting (academic vs. community).

Main Results:

  • Median TTS was 34 days; 30 days was used as a benchmark for timely care.
  • Hispanic ethnicity was initially associated with longer TTS but not significant in multivariate analysis.
  • Preoperative MRI use (OR: 0.438) and community practice setting (OR: 0.324) were independent predictors of decreased likelihood of TTS within 30 days.

Conclusions:

  • Preoperative MRI significantly increases time to surgery for breast cancer patients.
  • Practice setting, specifically community versus academic centers, impacts TTS.
  • Surgeons should carefully consider the necessity of preoperative MRI to avoid delaying surgical intervention.