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Nipple-Sparing Mastectomy With Immediate Reconstruction After Breast-Conserving Therapy and Radiation: Complications and Oncologic Safety.

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0148-7043

Name of journal: Annals of plastic surgeryAbstract: CONCLUSIONS: No significant differences in early or late complications were identified between breasts in patients undergoing bilateral NSM with a history of unilateral BCT and XRT. In the 5.5 years of follow-up, there were no recurrences, lending support to NSM for management of recurrent disease in addition to National Comprehensive Cancer Network-recommended total mastectomy. We propose that NSM should not be contraindicated in patients exposed to radiation with BCT. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.INTRODUCTION: Nipple-sparing mastectomy (NSM) offers improved, patient-centered outcomes with demonstrated oncologic safety ( Ann Surg Oncol 2020;27:344-351). Indications for NSM continue to expand to patients outside of the traditional eligibility criteria, including those with prior breast-conserving therapy (BCT) with radiotherapy. Currently, limited data exist evaluating both short- and long-term outcomes in patients proceeding to NSM after prior BCT.METHODS: All patients undergoing bilateral NSM in a single institution from 2002 through 2017 with history of prior BCT were included in the final cohort, without exclusions. A retrospective chart review was performed to identify patient demographics, operative details, and complications. Outcomes assessed included early complications (<30 days from NSM), late complications (>30 days), rates of prosthetic failure, unplanned reoperations, and reconstructive failures, as well as oncologic safety. Student t , chi 2 , and Fisher exact tests were used to analyze outcomes of paired (BCT vs non-BCT) breasts within each patient.RESULTS: A total of 17 patients undergoing 34 NSMs were included. Each had a history of BCT and either ipsilateral breast recurrence (64.7%), risk-reducing NSM (23.5%), or a new contralateral primary cancer (11.8%). The cohort had a mean age of 51.1 years. With regard to acute complications (ischemia, infection, nipple-areolar complex or flap ischemia or necrosis, and wound dehiscence), there was no significant difference noted between breasts with prior BCT versus no prior BCT overall (41.2% vs 35.3%, respectively; P = 0.724). Complications occurring after 30 days postoperatively (capsular contracture, contour abnormality, animation deformity, bottoming out, rotation, and rippling) in prior BCT breasts versus no prior BCT had no significant differences overall (58.8% vs 41.2% respectively; P = 0.303). The mean follow-up was 5.5 years, during which no patients had a reported locoregional or distant recurrence in either breast.All authors: King CA, Bartholomew AJ, Dabic S, Sogunro O, Perez-Alvarez IM, Welschmeyer AF, Sosin M, Thibodeau RM, Fan KL, Song DH, Greenwalt IT, Tousimis EAFiscal year: FY2024 Digital Object Identifier:

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Date added to catalog: 2024-01-16

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Title notes ( 5 )

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Item type	Current library	Collection	Call number	Status	Date due	Barcode
Journal Article	MedStar Authors Catalog	Article	37830503	Available		37830503

CONCLUSIONS: No significant differences in early or late complications were identified between breasts in patients undergoing bilateral NSM with a history of unilateral BCT and XRT. In the 5.5 years of follow-up, there were no recurrences, lending support to NSM for management of recurrent disease in addition to National Comprehensive Cancer Network-recommended total mastectomy. We propose that NSM should not be contraindicated in patients exposed to radiation with BCT. Copyright © 2023 Wolters Kluwer Health, Inc. All rights reserved.

INTRODUCTION: Nipple-sparing mastectomy (NSM) offers improved, patient-centered outcomes with demonstrated oncologic safety ( Ann Surg Oncol 2020;27:344-351). Indications for NSM continue to expand to patients outside of the traditional eligibility criteria, including those with prior breast-conserving therapy (BCT) with radiotherapy. Currently, limited data exist evaluating both short- and long-term outcomes in patients proceeding to NSM after prior BCT.

METHODS: All patients undergoing bilateral NSM in a single institution from 2002 through 2017 with history of prior BCT were included in the final cohort, without exclusions. A retrospective chart review was performed to identify patient demographics, operative details, and complications. Outcomes assessed included early complications (<30 days from NSM), late complications (>30 days), rates of prosthetic failure, unplanned reoperations, and reconstructive failures, as well as oncologic safety. Student t , chi 2 , and Fisher exact tests were used to analyze outcomes of paired (BCT vs non-BCT) breasts within each patient.

RESULTS: A total of 17 patients undergoing 34 NSMs were included. Each had a history of BCT and either ipsilateral breast recurrence (64.7%), risk-reducing NSM (23.5%), or a new contralateral primary cancer (11.8%). The cohort had a mean age of 51.1 years. With regard to acute complications (ischemia, infection, nipple-areolar complex or flap ischemia or necrosis, and wound dehiscence), there was no significant difference noted between breasts with prior BCT versus no prior BCT overall (41.2% vs 35.3%, respectively; P = 0.724). Complications occurring after 30 days postoperatively (capsular contracture, contour abnormality, animation deformity, bottoming out, rotation, and rippling) in prior BCT breasts versus no prior BCT had no significant differences overall (58.8% vs 41.2% respectively; P = 0.303). The mean follow-up was 5.5 years, during which no patients had a reported locoregional or distant recurrence in either breast.

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