Right side of heart enlarged?

I just had an echo-cardiogram done b/c I have hypertension and tightness in my chest *sometimes*. I have also been asthmatic since I was ~8yrs old and I am 25 now.

During the echo-cardiogram, the technician mentioned that the right side of my heart was "enlarged" and mentioned my asthma and asked if I had had an xray of my heart done. I will not know the results for a couple days, can anyone shed any light as to whether this is serious or potentially serious?

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