Geometric Design

Chronic Diseases

Dysfunction (HD)

Design Dots

What is Heart Dysfunction?

Heart dysfunction broadly describes any condition that results in the heart not pumping blood as efficiently as it should. The rest of the body relies on oxygen and nutrients in the bloodstream to continue functioning properly. A weakened heart uses various compensation mechanisms to keep up with the metabolic demands of the body. If the underlying heart condition is not treated, the cycle of compensation mechanisms continues to damage the heart until medical intervention is required.

Heart dysfunction is divided into distinct phases that correlate to disease progression.8

Stage A: At Risk for Heart Failure

No current or previous symptoms

Stage B: Pre-Heart Failure

No current or previous symptoms, but evidence of heart failure

Stage C: Symptomatic Heart Failure

Current or previous symptoms

Stage D: Advanced Heart Failure

Marked heart failure symptoms that interfere with daily life, frequent hospitalizations

It is estimated that 56% of adults fall into either Stage A (at risk) or Stage B (pre-heart failure).9 As there are typically no symptoms experienced in these stages, so often are there no diagnoses. If left untreated, heart dysfunction progresses to more severe stages with symptoms that can eventually require hospitalization.

Common Symptoms

While there are common symptoms associated with heart dysfunction, many people do not experience any symptoms at all, which makes early diagnosis even more crucial. Often, once symptoms do appear, the disease may have already progressed significantly. If they do occur, symptoms of heart dysfunction may include:10

Shortness of breath (either with activity or at rest)
Abnormal weight gain in a short time
Palpitations or feelings of “heart racing”
Swelling in the hands, feet, legs and abdomen
Fatigue and difficulty performing everyday activities

Who is at Risk?

Age-Related Illness


High Blood Pressure

Existing Cardiovascular Disease



Irregular Heartbeat

Type 2 Diabetes

Learn more about how QuantaFlo can improve outcomes for your patients