Disease Information

THERAPEUTIC AREA CONGESTIVE HEART FAILURE (CHF) FEATURED LINKS

Hyperkalemia

Congestive Heart Failure (CHF)

Chronic Kidney Disease (CKD)

End Stage Renal Disease (ESRD)

Renin-Angiotensin-Aldosterone (RAAS)

 

Congestive heart failure (CHF) occurs when the heart's pumping action can no longer pump enough blood to the muscles, tissues, and other organs and causes a buildup of fluid called congestion in the lungs and other body tissues.

Disease progression is generally assessed according to the New York Heart Association Functional Classification. This score documents severity of symptoms, and can be used to assess response to treatment.

Stages of CHF
  • Class I: no limitation is experienced in any activities; there are no symptoms from ordinary activities
  • Class II: slight, mild limitation of activity; the patient is comfortable at rest or with mild exertion
  • Class III: marked limitation of any activity; the patient is comfortable only at rest
  • Class IV: any physical activity brings on discomfort and symptoms occur at rest

CHF therapy is complex. Often patients have several underlying conditions and co-morbidities, such as diabetes mellitus, dyslipidemia, hypertension, chronic kidney disease and/or coronary artery disease. The therapy needs to be individualized for each patient's situation. Several medical therapies (ACE inhibitors, ARBs, aldosterone antagonists) have documented mortality advantages in CHF patients. Combinations and higher doses of these drugs as they are frequently used in treatment of CHF and CKD may lead to higher incidences of hyperkalemia.

In the US over 5 million patients have CHF and more than 500,000 cases are newly diagnosed each year.

American Heart Association

AHA treatment guideline

Heart Failure Online

CHF video by Health Discovery

CinicalTrials.gov

PubMed (search for medical articles)