Are predictive factors for locoregional recurrence in skin‐sparing and nipple‐sparing mastectomies time‐dependent?

Author(s):  
Kadri Altundag

Author(s):  
Vinzenz Völkel ◽  
Tom A. Hueting ◽  
Teresa Draeger ◽  
Marissa C. van Maaren ◽  
Linda de Munck ◽  
...  

Abstract Purpose To extend the functionality of the existing INFLUENCE nomogram for locoregional recurrence (LRR) of breast cancer toward the prediction of secondary primary tumors (SP) and distant metastases (DM) using updated follow-up data and the best suitable statistical approaches. Methods Data on women diagnosed with non-metastatic invasive breast cancer were derived from the Netherlands Cancer Registry (n = 13,494). To provide flexible time-dependent individual risk predictions for LRR, SP, and DM, three statistical approaches were assessed; a Cox proportional hazard approach (COX), a parametric spline approach (PAR), and a random survival forest (RSF). These approaches were evaluated on their discrimination using the Area Under the Curve (AUC) statistic and on calibration using the Integrated Calibration Index (ICI). To correct for optimism, the performance measures were assessed by drawing 200 bootstrap samples. Results Age, tumor grade, pT, pN, multifocality, type of surgery, hormonal receptor status, HER2-status, and adjuvant therapy were included as predictors. While all three approaches showed adequate calibration, the RSF approach offers the best optimism-corrected 5-year AUC for LRR (0.75, 95%CI: 0.74–0.76) and SP (0.67, 95%CI: 0.65–0.68). For the prediction of DM, all three approaches showed equivalent discrimination (5-year AUC: 0.77–0.78), while COX seems to have an advantage concerning calibration (ICI < 0.01). Finally, an online calculator of INFLUENCE 2.0 was created. Conclusions INFLUENCE 2.0 is a flexible model to predict time-dependent individual risks of LRR, SP and DM at a 5-year scale; it can support clinical decision-making regarding personalized follow-up strategies for curatively treated non-metastatic breast cancer patients.





2012 ◽  
Vol 19 (13) ◽  
pp. 4117-4123 ◽  
Author(s):  
Maximiliano Cassilha Kneubil ◽  
Visnu Lohsiriwat ◽  
Giuseppe Curigliano ◽  
Janaina Brollo ◽  
Edoardo Botteri ◽  
...  


2015 ◽  
Vol 152 (3) ◽  
pp. 627-636 ◽  
Author(s):  
Annemieke Witteveen ◽  
Ingrid M. H. Vliegen ◽  
Gabe S. Sonke ◽  
Joost M. Klaase ◽  
Maarten J. IJzerman ◽  
...  


2010 ◽  
Vol 25 (8) ◽  
pp. 2702-2710 ◽  
Author(s):  
J. Fort ◽  
X. Cuevas ◽  
F. Garcia ◽  
R. Perez-Garcia ◽  
F. Llados ◽  
...  




2021 ◽  
Vol 48 (5) ◽  
pp. 483-493
Author(s):  
Chun-Lin Su ◽  
Jia-Ruei Yang ◽  
Wen-Ling Kuo ◽  
Shin-Cheh Chen ◽  
David Chon-Fok Cheong ◽  
...  

Background Direct-to-implant (DTI) breast reconstruction after nipple-sparing mastectomy (NSM) with the use of acellular dermal matrix (ADM) provides reliable outcomes; however, the use of ADM is associated with a higher risk of complications. We analyzed our experiences of post-NSM DTI without ADM and identified the predictive factors of adverse surgical outcomes.Methods Patients who underwent NSM and immediate DTI or two-stage tissue expander (TE) breast reconstruction from 2009 to 2020 were enrolled. Predictors of adverse endpoints were analyzed.Results There were 100 DTI and 29 TE reconstructions. The TE group had a higher rate of postmastectomy radiotherapy (31% vs. 11%; P=0.009), larger specimens (317.37±176.42 g vs. 272.08±126.33 g; P=0.047), larger implants (360.84±85.19 g vs. 298.83±81.13 g; P=0.004) and a higher implant/TE exposure ratio (10.3% vs. 1%; P=0.035). In DTI reconstruction, age over 50 years (odds ratio [OR], 5.43; 95% confidence interval [CI], 1.50–19.74; P=0.010) and a larger mastectomy weight (OR, 1.65; 95% CI, 1.08–2.51; P=0.021) were associated with a higher risk of acute complications. Intraoperative radiotherapy for the nipple-areolar complex increased the risk of acute complications (OR, 4.05; 95% CI, 1.07–15.27; P=0.039) and the likelihood of revision surgery (OR, 5.57; 95% CI, 1.25–24.93; P=0.025).Conclusions Immediate DTI breast reconstruction following NSM is feasible in Asian patients with smaller breasts.





Sign in / Sign up

Export Citation Format

Share Document