Cardiac risk for early stage herceptin????

[RobinP]

So just wandering what the cardiac risk are for Herceptin long term as I am considering late Herceptin for early stage bc. What do we know about the longer term side effects from the metastatic population that has recieved Herceptin? How long have they been taking Herceptin etc. without cardiac problems. Any information to help me fill in this gray area of knowledge would be appreciated

RobinP.