This article easily qualifies as the most useful brief written about congestive heart failure pathophysiology and management to this point.
Dr. Sarah Goodlin is to be congratulated.
Link to the article.
The Course of Congestive Heart Failure

Congestive Heart Failure: Pathophysiology and Symptomatology


            
Congestive Heart Failure: Staging and Management 


Congestive Heart Failure: Communication With The Patient And Family