Superior pedicle reduction mammoplasty: A multivariable analysis of 1306 patients. Risk factors for complications and development of a predictive score.

Breast reduction surgery for hypertrophy is one of the most commonly performed procedures in plastic surgery. This surgery exposes patients to complications well documented in the literature. The objective of this study is therefore to identify the risk factors in order to establish an estimate of the risk of developing complications. We propose the first predictive score of postoperative complications including continuous preoperative variables like Body Mass Index (BMI) and Supra Sternal Notch - Nipple Distance (SSN:N). 1306 patients were analyzed. Multivariable logistic regression showed three independent risk factors : active smoking (OR 6.10 [4.23; 8.78] p < 0.0001), BMI (OR 1.16 [1.11; 1.22] p < 0.0001), SSN:N (OR 1.14 [1.08; 1.21] p < 0.0001). The Rennes Plastic Surgery Score estimating occurrence of postoperative complications was determined, integrating regression coefficient of each risk factor. Active smoking, BMI and SSN:N distance are independent preoperative risk factors for the occurrence of breast reduction complications. The Rennes Plastic Surgery Score including the continuous values of BMI and SSN:N allows us to provide to our patients a reliable estimate of the risk of occurrence of these complications. Lesser-quality prospective cohort or comparative study; retrospective cohort or comparative study; or untreated controls from a randomized controlled trial.

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Financial disclosure and conflicts of interest: The authors received no funding support for the research of this article and declared no potential conflicts of interest with the respect to the research, authorship and/or publication.