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Deprecated: Implicit conversion from float 302.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Ann+Surg+Oncol 2017 ; 24 (6): 1507-15 Nephropedia Template TP
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Fewer Reoperations After Lumpectomy for Breast Cancer with Neoadjuvant Rather than Adjuvant Chemotherapy: A Report from the National Cancer Database #MMPMID28062931
Ann Surg Oncol 2017[]; 24 (6): 1507-15 PMID28062931show ga
Background: Reoperations occur frequently after initial lumpectomy for breast cancer. The authors hypothesized that the receipt of neoadjuvant chemotherapy (NAC) is associated with fewer reoperations. Methods: The association between timing of chemotherapy and reoperation rates (ROR) after lumpectomy was investigated for patients with stages 1?3 breast cancer in the National Cancer Database (NCDB) from 2010 to 2013 by multivariable logistic regression modeling. Then propensity score-matching was performed. Results: The unadjusted ROR for 71,627 stages 1?3 patients was 11.4% for those who had NAC compared with 20.3% for those who had postoperative chemotherapy (p < 0.001) (odds ratio [OR] 0.53; 95% confidence interval [CI] 0.49?0.57; p < 0.001). The ORs for the reoperations performed for patients with stages 1, 2, and 3 cancers who received NAC were respectively 0.65 (95% CI 0.56?0.75), 0.50 (95% CI 0.45?0.56), and 0.27 (95% CI 0.19?0.38) The p values for all were lower than 0.001. Conclusion: For a population of patients receiving chemotherapy, the receipt of chemotherapy before instead of after surgery was associated with fewer reoperations after initial lumpectomy for breast cancer.