The reason you got two different opinions is because it could and then again perhaps it won't. If your swelling is only confined to the arm (and not on your body) I would think not. The precautions usually involve the arm and hand.
How are you? The lymphedema factor does not mean that the breast reconstruction surgery should not be performed. This means more planning involved for the pre and post operation. Although there are no definite precautions to prevent the development of lymphedema, there are steps you can take to reduce your risks. This is why it is important to communicate with your surgeon. This link may be helpful: http://www.lymphnotes.com/article.php/id/265/
Deep Inferior Epigastric Perforator (DIEP) flap breast construction results in the creation of a natural breast with no muscle removed. Patients are said to recover quickly with usually only a three-day hospital stay. The abdominal scar is placed low on the abdomen because no muscle is removed.
I hope this helps. Take care and keep us posted.