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Time to surgery among women treated with neoadjuvant systemic therapy and upfront surgery for breast cancer.

Abstract：

PURPOSE:Time to surgery (TTS) is a potentially modifiable factor associated with survival after breast cancer diagnosis and can serve as a proxy for quality of oncologic care coordination. We sought to determine whether factors associated with delays in TTS vary between patients who receive neoadjuvant systemic therapy (NST) vs upfront surgery and whether the impact of these delays on overall survival (OS) varies with treatment sequence. METHODS:Women ≥ 18 years old with Stage I-III breast cancer were identified in the National Cancer Database (2004-2014). Multivariate linear regression stratified by treatment sequence (upfront surgery vs NST [neoadjuvant chemotherapy {NAC}, neoadjuvant endocrine therapy {NAE}, or both {NACE}]) was used to identify factors associated with TTS. Cox proportional hazards models were used to estimate the effect of TTS on overall survival (OS). RESULTS:Of 693,469 patients, 14.8% (n = 102,326) received NST (NAC n = 85,143, NAE n = 10,004, NACE n = 7179). Non-White race/ethnicity, no or government-issued insurance, more extensive surgery (i.e., mastectomy and contralateral prophylactic mastectomy vs breast-conserving surgery), and post-mastectomy reconstruction were associated with significantly longer adjusted TTS for NAC and upfront-surgery recipients, but only upfront-surgery patients had progressively worse OS with increasing TTS (> 180 vs ≤ 30 days: HR = 1.31, all p < 0.001). CONCLUSIONS:Surgery extent, race/ethnicity, and insurance were associated with TTS across treatment groups, but longer TTS was only associated with worse OS in upfront-surgery patients. Our findings can help inform surgeon-patient communication, shared decision making, care coordination, and patients' expectations throughout both NST and in the perioperative period.

journal_name

Breast Cancer Res Treat

journal_title

Breast cancer research and treatment

authors

Prakash I,Thomas SM,Greenup RA,Plichta JK,Rosenberger LH,Hyslop T,Fayanju OM

doi

10.1007/s10549-020-06012-7

subject

Has Abstract

pub_date

2020-11-18 00:00:00

eissn

0167-6806

issn

1573-7217

pii

10.1007/s10549-020-06012-7

pub_type

杂志文章

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Time to surgery among women treated with neoadjuvant systemic therapy and upfront surgery for breast cancer.