Extra Tissue?: I am not sure what you mean by extra tissue. Sometimes people can develop fluid around there heart which can decrease the heart's ability to fill. This can cause shortness of breath, fatigue, and ultimtely heart failure. The peicardium is the sack around the heart and it can get stiff producing the same symptoms.
Answered 10/4/2016
5.4k views
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question