Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy

Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data...
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Autor*in:	Haque, Waqar [verfasserIn] Verma, Vivek [verfasserIn] Naik, Nilan [verfasserIn] Butler, E. Brian [verfasserIn] Teh, Bin S. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Übergeordnetes Werk:	Enthalten in: Annals of surgical oncology - Berlin [u.a.] : Springer, 1994, 25(2018), 4 vom: 10. Jan., Seite 928-936
Übergeordnetes Werk:	volume:25 ; year:2018 ; number:4 ; day:10 ; month:01 ; pages:928-936

Links:	Volltext

DOI / URN:	10.1245/s10434-017-6316-2

Katalog-ID:	SPR009993991

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520			\|a Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein.
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author_variant	w h wh v v vv n n nn e b b eb ebb b s t bs bst
matchkey_str	article:15344681:2018----::ealsibescnepatcptenotoead
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publishDate	2018
allfields	10.1245/s10434-017-6316-2 doi (DE-627)SPR009993991 (SPR)s10434-017-6316-2-e DE-627 ger DE-627 rakwb eng 610 ASE 44.81 bkl 44.65 bkl Haque, Waqar verfasserin aut Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. Verma, Vivek verfasserin aut Naik, Nilan verfasserin aut Butler, E. Brian verfasserin aut Teh, Bin S. verfasserin aut Enthalten in Annals of surgical oncology Berlin [u.a.] : Springer, 1994 25(2018), 4 vom: 10. Jan., Seite 928-936 (DE-627)343969947 (DE-600)2074021-9 1534-4681 nnns volume:25 year:2018 number:4 day:10 month:01 pages:928-936 https://dx.doi.org/10.1245/s10434-017-6316-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.81 ASE 44.65 ASE AR 25 2018 4 10 01 928-936
spelling	10.1245/s10434-017-6316-2 doi (DE-627)SPR009993991 (SPR)s10434-017-6316-2-e DE-627 ger DE-627 rakwb eng 610 ASE 44.81 bkl 44.65 bkl Haque, Waqar verfasserin aut Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. Verma, Vivek verfasserin aut Naik, Nilan verfasserin aut Butler, E. Brian verfasserin aut Teh, Bin S. verfasserin aut Enthalten in Annals of surgical oncology Berlin [u.a.] : Springer, 1994 25(2018), 4 vom: 10. Jan., Seite 928-936 (DE-627)343969947 (DE-600)2074021-9 1534-4681 nnns volume:25 year:2018 number:4 day:10 month:01 pages:928-936 https://dx.doi.org/10.1245/s10434-017-6316-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.81 ASE 44.65 ASE AR 25 2018 4 10 01 928-936
allfields_unstemmed	10.1245/s10434-017-6316-2 doi (DE-627)SPR009993991 (SPR)s10434-017-6316-2-e DE-627 ger DE-627 rakwb eng 610 ASE 44.81 bkl 44.65 bkl Haque, Waqar verfasserin aut Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. Verma, Vivek verfasserin aut Naik, Nilan verfasserin aut Butler, E. Brian verfasserin aut Teh, Bin S. verfasserin aut Enthalten in Annals of surgical oncology Berlin [u.a.] : Springer, 1994 25(2018), 4 vom: 10. Jan., Seite 928-936 (DE-627)343969947 (DE-600)2074021-9 1534-4681 nnns volume:25 year:2018 number:4 day:10 month:01 pages:928-936 https://dx.doi.org/10.1245/s10434-017-6316-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.81 ASE 44.65 ASE AR 25 2018 4 10 01 928-936
allfieldsGer	10.1245/s10434-017-6316-2 doi (DE-627)SPR009993991 (SPR)s10434-017-6316-2-e DE-627 ger DE-627 rakwb eng 610 ASE 44.81 bkl 44.65 bkl Haque, Waqar verfasserin aut Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. Verma, Vivek verfasserin aut Naik, Nilan verfasserin aut Butler, E. Brian verfasserin aut Teh, Bin S. verfasserin aut Enthalten in Annals of surgical oncology Berlin [u.a.] : Springer, 1994 25(2018), 4 vom: 10. Jan., Seite 928-936 (DE-627)343969947 (DE-600)2074021-9 1534-4681 nnns volume:25 year:2018 number:4 day:10 month:01 pages:928-936 https://dx.doi.org/10.1245/s10434-017-6316-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.81 ASE 44.65 ASE AR 25 2018 4 10 01 928-936
allfieldsSound	10.1245/s10434-017-6316-2 doi (DE-627)SPR009993991 (SPR)s10434-017-6316-2-e DE-627 ger DE-627 rakwb eng 610 ASE 44.81 bkl 44.65 bkl Haque, Waqar verfasserin aut Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. Verma, Vivek verfasserin aut Naik, Nilan verfasserin aut Butler, E. Brian verfasserin aut Teh, Bin S. verfasserin aut Enthalten in Annals of surgical oncology Berlin [u.a.] : Springer, 1994 25(2018), 4 vom: 10. Jan., Seite 928-936 (DE-627)343969947 (DE-600)2074021-9 1534-4681 nnns volume:25 year:2018 number:4 day:10 month:01 pages:928-936 https://dx.doi.org/10.1245/s10434-017-6316-2 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_711 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 44.81 ASE 44.65 ASE AR 25 2018 4 10 01 928-936
language	English
source	Enthalten in Annals of surgical oncology 25(2018), 4 vom: 10. Jan., Seite 928-936 volume:25 year:2018 number:4 day:10 month:01 pages:928-936
sourceStr	Enthalten in Annals of surgical oncology 25(2018), 4 vom: 10. Jan., Seite 928-936 volume:25 year:2018 number:4 day:10 month:01 pages:928-936
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container_title	Annals of surgical oncology
authorswithroles_txt_mv	Haque, Waqar @@aut@@ Verma, Vivek @@aut@@ Naik, Nilan @@aut@@ Butler, E. Brian @@aut@@ Teh, Bin S. @@aut@@
publishDateDaySort_date	2018-01-10T00:00:00Z
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This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. 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author	Haque, Waqar
spellingShingle	Haque, Waqar ddc 610 bkl 44.81 bkl 44.65 Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy
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title	Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy
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title_full	Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy
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title_sort	metaplastic breast cancer: practice patterns, outcomes, and the role of radiotherapy
title_auth	Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy
abstract	Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein.
abstractGer	Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein.
abstract_unstemmed	Purpose Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1–2N0 and pT3–4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3–4/N+ cases (p < 0.001), but not in pT1–2N0 cases (p = 0.259). Conclusions In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3–4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein.
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container_issue	4
title_short	Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy
url	https://dx.doi.org/10.1245/s10434-017-6316-2
remote_bool	true
author2	Verma, Vivek Naik, Nilan Butler, E. Brian Teh, Bin S.
author2Str	Verma, Vivek Naik, Nilan Butler, E. Brian Teh, Bin S.
ppnlink	343969947
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isOA_txt	false
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doi_str	10.1245/s10434-017-6316-2
up_date	2024-07-04T03:49:43.739Z
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This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. Methods The National Cancer Data Base was queried (2004–2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan–Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1–2N0 and pT3–4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. Results Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). 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