Heart issues with chemotherapy??

Michaela74

My mom's in Germany just had surgery stage 3 non small june 25, Rt mid lobectomy. She just completed day 1 and day 8 last friday of chemotherapy. She was rushed to the hospital due to cramping and pain in left arm. They told her there looks like there is something wrong with her heart. Her heart was fine before surgery, I don't understand how now so quick there could be something wrong. I won't have answers till tom when they do a echo and possible angiogram. I am just besides myself feel like what else can go wrong. It is bad enough I just came back from there and won't be there til end of Oct again. Please help!!