Hello @MeganM
Thank you for your question about TAC chemotherapy. This stands for Docetaxol, Doxorubicin & Cyclophosphamide) huge names I know! I have included the patient information sheet below from the eviQ website regarding this chemotherapy combination.
https://www.eviq.org.au/medical-oncology/breast/adjuvant/13-breast-adjuvant-tac-docetaxel-doxorubicin-cycl/patient-informationOne of the less common side effects of Doxorubicin is that it can affect the way the heart works.
An echo cardiogram (an echo) can help find problems with the heart muscle, valves, or rhythm prior to having chemotherapy. You will certainly be monitored while having chemotherapy.