ConMed HelixAR™ ElectroSurgical Generator With Argon Beam Coagulation Technology Study

Inclusion Criteria: 1. 18 to 80 years of age; 2. Capable and willing to give informed consent; 3. Acceptable candidate for a unilateral or bilateral mastectomy and reconstruction. All subjects enrolled and consented will undergo mastectomy with a breast reconstruction procedure, if it is in the subject's best interest. Exclusion Criteria: 1. Advanced refusal of blood transfusion, if necessary; 2. Active systemic or cutaneous infection or inflammation; 3. Pre-existing immunodeficiency disorder and/or chronic use of systemic steroids; 4. Uncontrolled diabetes mellitus 5. Known, significant history of bleeding diathesis, or coagulopathy, or Von Willebrand's disease or current platelet count \< 100,000 cells/mm3, or baseline INR ≥1.8, or fibrinogen level less than 150 mg/dl (if received a fibrinolytic agent within prior 24 hours); 6. Severe co-existing morbidities having a life expectancy of less than 30 days; 7. Currently involved in any other investigational clinical studies that could influence outcomes; 8. Significant anemia with a hemoglobin level less than 10 g/dL or a hematocrit less than 30%; 9. Renal insufficiency (serum creatinine of \> 2.5 mg/dl); 10. Females who are pregnant, planning to become pregnant within 3 months of the procedure, or lactating; 11. Patients who have had previous partial mastectomies with scar tissue affecting the area to be resected.