Does conventional specimen radiography after neoadjuvant chemotherapy of breast cancer help to reduce the rate of second surgeries?
Purpose This is the first study to systematically evaluate the diagnostic accuracy of intraoperative specimen radiography on margin level and its potential to reduce second surgeries in patients treated with neoadjuvant chemotherapy. - Methods This retrospective study included 174 cases receiving...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2022
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| In: |
Breast cancer research and treatment
Year: 2022, Jahrgang: 191, Heft: 3, Pages: 589-598 |
| ISSN: | 1573-7217 |
| DOI: | 10.1007/s10549-021-06466-3 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1007/s10549-021-06466-3 Verlag, kostenfrei, Volltext: https://link.springer.com/10.1007/s10549-021-06466-3 
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| Verfasserangaben: | Benedikt Schaefgen, Annika Funk, H.-P. Sinn, Thomas Bruckner, Christina Gomez, Aba Harcos, Anne Stieber, Annabelle Haller, Juliane Nees, Riku Togawa, André Pfob, André Hennigs, Johanna Hederer, Fabian Riedel, Sarah Fastner, Christof Sohn, Jörg Heil, Michael Golatta |
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| 245 | 1 | 0 | |a Does conventional specimen radiography after neoadjuvant chemotherapy of breast cancer help to reduce the rate of second surgeries? |c Benedikt Schaefgen, Annika Funk, H.-P. Sinn, Thomas Bruckner, Christina Gomez, Aba Harcos, Anne Stieber, Annabelle Haller, Juliane Nees, Riku Togawa, André Pfob, André Hennigs, Johanna Hederer, Fabian Riedel, Sarah Fastner, Christof Sohn, Jörg Heil, Michael Golatta |
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| 520 | |a Purpose This is the first study to systematically evaluate the diagnostic accuracy of intraoperative specimen radiography on margin level and its potential to reduce second surgeries in patients treated with neoadjuvant chemotherapy. - Methods This retrospective study included 174 cases receiving breast conserving surgery (BCS) after neoadjuvant chemotherapy (NACT) of primary breast cancer. Conventional specimen radiography (CSR) was performed to assess potential margin infiltration and recommend an intraoperative re-excision of any radiologically positive margin. The histological workup of the specimen served as gold standard for the evaluation of the accuracy of CSR and the potential reduction of second surgeries by CSR-guided re-excisions. - Results 1044 margins were assessed. Of 47 (4.5%) histopathological positive margins, CSR identified 9 correctly (true positive). 38 infiltrated margins were missed (false negative). This resulted in a sensitivity of 19.2%, a specificity of 89.2%, a positive predictive value (PPV) of 7.7%, and a negative predictive value (NPV) of 95.9%. The rate of secondary procedures was reduced from 23 to 16 with a number needed to treat (NNT) of CSR-guided intraoperative re-excisions of 25. In the subgroup of patients with cCR, the prevalence of positive margins was 10/510 (2.0%), PPV was 1.9%, and the NNT was 85. - Conclusion Positive margins after NACT are rare and CSR has only a low sensitivity to detect them. Thus, the rate of secondary surgeries cannot be significantly reduced by recommending targeted re-excisions, especially in cases with cCR. In summary, CSR after NACT is inadequate for intraoperative margin assessment but remains useful to document removal of the biopsy site clip. | ||
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