PMID- 30941320 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220408 IS - 2288-6575 (Print) IS - 2288-6796 (Electronic) IS - 2288-6575 (Linking) VI - 96 IP - 4 DP - 2019 Apr TI - Nomogram for accurate prediction of breast and axillary pathologic response after neoadjuvant chemotherapy in node positive patients with breast cancer. PG - 169-176 LID - 10.4174/astr.2019.96.4.169 [doi] AB - PURPOSE: Many patients with cytology proven node-positive breast cancer receive a neoadjuvant chemotherapy (NAC) treatment. We developed a nomogram to predict the breast and axillary pathologic complete responses (pCR) in patients with a cytologically proven axillary node positive breast cancer with NAC. METHODS: We selected 995 patients who were diagnosed with an invasive breast cancer and axillary lymph nodes metastasis, and who were treated with NAC followed by a curative surgery at the Samsung Medical Center between January 2007 and December 2014. The baseline patient and tumor characteristics, chemotherapy regimen, and tumor and nodal responses were thoroughly analyzed and reviewed. A nomogram was developed using a binary logistic regression model with a cross validation. RESULTS: Axillary pCR was achieved in 47.3% and breast pCR was achieved in 24.3% of the patients after NAC. In this case, the both pCR was associated with an initial clinical tumor stage, negative progesterone receptor status, positive human epidermal growth factor receptor 2 status, and clinical radiologic nodal responses. A nomogram was developed based on the clinical and statistically significant predictors. It had good discrimination performance (area under the curve [AUC], 0.868; 95% confidence interval, 0.84-0.89) and calibration fit as noted in that case. The cross validation had an average AUC 0.853 (0.837-0.869). CONCLUSION: Our nomogram might help to predict breast and axillary pCRs after NAC in patients with an initially node-positive breast cancer. Minimal surgery might be acceptable in patients for whom the nomogram indicates a high probability of achieving pCRs. FAU - Choi, Hee Jun AU - Choi HJ AD - Department of Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea. FAU - Ryu, Jai Min AU - Ryu JM AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Kim, Isaac AU - Kim I AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Nam, Seok Jin AU - Nam SJ AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Kim, Seok Won AU - Kim SW AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Yu, Jonghan AU - Yu J AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Lee, Jeong Eon AU - Lee JE AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. FAU - Lee, Se Kyung AU - Lee SK AUID- ORCID: 0000-0003-1630-1783 AD - Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. LA - eng PT - Journal Article DEP - 20190328 PL - Korea (South) TA - Ann Surg Treat Res JT - Annals of surgical treatment and research JID - 101622895 PMC - PMC6444045 OTO - NOTNLM OT - Complete response OT - Neoadjuvant treatment OT - Nomograms COIS- CONFLICTS OF INTEREST: No potential conflict of interest relevant to this article was reported. EDAT- 2019/04/04 06:00 MHDA- 2019/04/04 06:01 PMCR- 2019/04/01 CRDT- 2019/04/04 06:00 PHST- 2018/08/14 00:00 [received] PHST- 2018/11/19 00:00 [revised] PHST- 2018/12/11 00:00 [accepted] PHST- 2019/04/04 06:00 [entrez] PHST- 2019/04/04 06:00 [pubmed] PHST- 2019/04/04 06:01 [medline] PHST- 2019/04/01 00:00 [pmc-release] AID - 10.4174/astr.2019.96.4.169 [doi] PST - ppublish SO - Ann Surg Treat Res. 2019 Apr;96(4):169-176. doi: 10.4174/astr.2019.96.4.169. Epub 2019 Mar 28.