I'm so glad you have not had your surgery yet.. please talk to your doctor about options including one-stage reconstruction, where the final implants are placed at the time of the mastectomy surgery, meaning only one operation! Another option is the Goldilocks mastectomy, which is also one surgery. This option does not require the use of any artificial material and leaves the fullness of a smaller breast without there being any breast tissue. For some patients, it is a good compromise between having reconstruction and having "nothing". If you are comfortable and want a flat chest, of course that is fine- but there are alternative options to two-step reconstruction vs to what amounts to a "breast amputation". Surgery time for mastectomy can vary widely from surgeon to surgeon- so it's best to ask your doctor how long it usually takes them. I think of safety under anesthesia is like flying... it's the "take off" and the "landing" where the most concern for problems lies, not the time spent in the air. So, it's no "safer" to fly from New York to Boston than it is to fly from New York to Los Angeles. Please do not let your fear of what most likely will be a safe operation with safe anesthesia keep you from having a final result that will make you happy as you recover and go on to live your life. Feel free to contact us if you have questions about these options to see if they may apply to your situation...