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When I was diagnosed with breast cancer at MD Anderson in January 2019, my biggest concern wasn¡¯t actually my breasts. It was my heart. Because 23 years earlier, I¡¯d been diagnosed with cardiomyopathy, a weakening of the heart muscle that can make general anesthesia riskier.

I found out I had that condition in 1996, when my heart failed just five days after my son was born. In my case, it was caused by the strain of pregnancy....