Table 3. Advantages of the Zenn Delay.

No.	Advantages
1	Avoids nipple and skin loss by utilizing a 2-week delay
2	Avoids months of tissue expansion and hassle for the patient and the surgeon
3	Allows confirmation of final pathology prior to reconstruction
4	Increases the indications for NSM to larger more ptotic breasts, breasts with previous surgery and even prior chest irradiation
5	Uncouples the mastectomy from the reconstruction making the breast surgeon and the reconstructive surgeon more efficient and gives the reconstructive surgeon access to a wider population of breast patients
6	Utilizes the existing skin envelope for excellent cosmesis, including natural ptosis and correct nipple positioning

NSM, nipple sparing mastectomy.