Influence of Triple-Negative versus Luminal A Breast Cancer Subtype on Choice of Autologous versus Implant-Based Delayed-Immediate Breast Reconstruction

A Comparison of Postoperative Outcomes Between Immediate, Delayed Immediate, and Delayed Autologous Free Flap Breast Reconstruction: Analysis of 2010-2020 NSQIP Data

BACKGROUND

 While many factors influence decisions related to the timing between mastectomy and flap-based breast reconstruction, there is limited literature comparing postoperative complications between immediate (IBR), delayed immediate (DIBR), and delayed (DBR) reconstruction modalities. Using the National Surgical Quality Improvement Program (NSQIP), we sought to compare postoperative complication rates of each timing modality.

METHODS

 The NSQIP 2010-2020 database was queried for patients who underwent free flap breast reconstruction. Cases were categorized to include mastectomy performed concurrently with a free flap reconstruction, removal of a tissue expander with free flap reconstruction, and free flap reconstruction alone which are defined as IBR, DIBR, and DBR, respectively. The frequency of postoperative outcomes including surgical site infection (SSI), wound dehiscence, intraoperative transfusion, deep venous thrombosis (DVT), and return to operating room (OR) was assessed. Overall complication rates, hospital length of stay (LOS), and operative time were analyzed. Multivariable regression analysis controlling for age, race, BMI, diabetes, hypertension, ASA class, and laterality was performed.

RESULTS

 A total of 7,907 cases that underwent IBR, DIBR (n = 976), and DBR reconstruction (n = 6,713) were identified. No statistical difference in occurrence of SSIs, wound dehiscence, or DVT was identified. DIBR (9%) and DBR (11.9%) were associated with less occurrences of reoperation than IBR (13.2%, p < 0.001). Univariate and multivariate regression analysis demonstrated that DIBR and DBR were associated with a lower odds of complications and shorter operation time versus IBR. No statistically significant differences between DIBR and DBR in surgical complications, LOS, and operative time were identified.

CONCLUSION

 Awareness of overall complication rates associated with each reconstructive timing modality can be used to help guide physicians when discussing reconstructive options. Our data suggests that DIBR and DBR are associated with less overall complications than IBR. Physicians should continue to consider patients' unique circumstances when deciding upon which timing modality is appropriate.

Consequences and Predictors of Prolonged Tissue Expander Duration in Breast Reconstruction

BACKGROUND

 Tissue expanders (TEs) are temporary devices used in breast reconstruction, which are generally removed within 1 year. There is a paucity of data regarding the potential consequences when TEs have longer indwelling times. Thus, we aim to determine whether prolonged TE implantation length is associated with TE-related complications.

METHODS

 This is a single-center retrospective review of patients who underwent TE placement for breast reconstruction from 2015 to 2021. Complications were compared between patients who had a TE for >1 year and <1 year. Univariate and multivariate regressions were used to evaluate predictors of TE complications.

RESULTS

 A total of 582 patients underwent TE placement and 12.2% had the expander for >1 year. Adjuvant chemoradiation, body mass index (BMI), overall stage, and diabetes predicted the duration of TE placement (p ≤ 0.006). Rate of return to the operating room was higher in patients who had TEs in place >1 year (22.5 vs 6.1%, p < 0.001). On multivariate regression, prolonged TE duration predicted an infection requiring antibiotics, readmission, and reoperation (p < 0.001). Reasons for longer indwelling times included need for additional chemoradiation (79.4%), TE infections (12.7%), and requesting a break from surgery (6.3%).

CONCLUSION

 Indwelling TEs for >1 year are associated with higher rates of infection, readmission, and reoperation even when controlling for adjuvant chemoradiation. Patients with diabetes, a higher BMI, advanced cancer stage, and those requiring adjuvant chemoradiation should be advised they may require a TE for a longer time interval prior to final reconstruction.

A Paradigm Shift: Outcomes of Early Autologous Breast Reconstruction after Radiation Therapy

BACKGROUND

 Radiation creates significant challenges for breast reconstruction. There is no consensus regarding optimal timing for autologous reconstruction following radiation. This study explores clearly defined, shorter time intervals between completion of radiation and reconstruction than previously reported.

METHODS

 A retrospective review was performed on patients who underwent autologous reconstruction by five microsurgeons at an academic institution from 2009 to 2020. Cohorts were selected by time elapsed between radiation and autologous reconstruction including <3 months, 3 to 6 months, 6 to 9 months, 9 to 12 months, 12 to 24 months, and >24 months. Analysis compared baseline characteristics, operative details, complications, revision rates, and BREAST-Q scores. Analysis of variance was used for continuous variables and chi-square for discrete variables.

RESULTS

 In total, 462 radiated patients underwent 717 flaps. There were 69 patients at <3 months (14.9%), 97 at 3 to 6 months (21%), 64 at 6 to 9 months (13.9%), 36 at 9 to 12 months (7.8%), 73 at 12 to 24 months (15.8%), and 123 at >24 months (26.6%). Age, time from mastectomy, and failure of primary reconstruction were higher at >24 months (p < 0.001). There was no difference between cohorts in intraoperative complications in radiated or nonradiated breasts. There was no difference in acute and late postoperative complications between cohorts. Wound-healing complications in radiated sides were lowest at <3 months and 3 to 6 months (5/69 [7.3%] and 11/97 [11.3%], respectively) compared with other groups (18.8-22.2%) but did not reach significance (p = 0.11). More fat graft revisions occurred at <3 months (p = 0.003).

CONCLUSION

 Reconstruction can be safely performed within 3 months after radiation without increases in intraoperative, acute, or late reconstructive complications.