Heart Failure Support Group
Heart failure is a condition that can result from any structural or functional cardiac disorder that impairs the ability of the heart to fill with or pump a sufficient amount of blood throughout the body. It is often undiagnosed due to a lack of a universally agreed definition and difficulties in diagnosis, particularly when the condition is considered "mild."
Here it is again:
http://www.thyroid.org/patient-thyroid-information/ct-for-patients/vol-5-issue-9/vol-5-issue-9-p-6-7/
Thank you for your article. I will bring it up to my cardiologist.