Dear JK
High blood
pressurePressure ulcer is a common cause of an enlarged heart. Heart valve disease can do the same. Alcohol abuse can lead to heart enlargement as well. Methadone would not, but illicit drug use easily can. Emphysema that is severe can lead to enlargement of certain parts of the heart, though it would be unusual to develop that degree of emphysema so early in life. Certain causes of heart enlargement run in families.
I hope this has been useful. I wish you the best of luck. Feel free to write back.
Information provided here is for general purposes only. Specific questions should be addressed to your own doctor. If you would like to make an appointment at the Cleveland Clinic Heart Center, please call 1-800-CCF-CARE or inquire online by using the Heart Center website at www.ccf.org/heartcenter. The Heart Center website contains a directory of the cardiology staff that can be used to select the physician best suited to address your cardiac problem.