Q. What are the stages of congestive heart failure?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

The terms ‘acute heart failure’ and ‘congestive heart failure’ (or CHF) are often used interchangeably, but it is important to note that there are distinct differences between the two. Acute heart failure (AHF) typically occurs as a result of an acute episode, meaning suddenly and with urgency. This includes conditions such as a heart attack or myocarditis, where damage has been sustained to the heart muscle from either a lack of oxygen-rich blood flow or an infection. In this situation, the entire body is affected by the weakened cardiomyopathy-induced cardiovascular system resulting in changes in fluid levels throughout all organs including fluid spilling into pulmonary vessels leading to congestion within lungs and other organs. On the other hand, Congestive Heart Failure (CHF) can be thought of as a chronic form of AHFwhereby progressive cardiac damage leads to reduced pumping efficiency over time alleviating excessive strain on surrounding organs and allowing them time to adapt before becoming clinically symptomatic. This means that while both involve poor cardiovascular function, CHF involves much more insidious onset than AHF due to its slower progression process allowing patients more time for lifestyle modifications and creating opportunities for therapeutic interventions depending on individualized circumstances.

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