Cough rupturing breast implants? 390cc on the L breast and 400cc on the R saline implants under the muscle

It typically takes a lot of pressure to rupture an implant so a mild cough would be very unlikely to cause a rupture. Continue following up with your operating surgeon so he or she can monitor your progress after your second surgery. Enjoy your new look!

I am sorry to hear about the problem you experienced after your initial breast augmentation surgery. Given your history, I can understand your concerns but breast implants deflation secondary to coughing is not something I would be concerned about if I were you.  This is a complication I have not seen or heard about. Best wishes for outcome that you will be very pleased with.