The Basic Working Principle of EECP: Synchronized Pressure
EECP is based on a principle called "counterpulsation." Inflatable cuffs wrapped around the calves, thighs, and hips work in sync with your heartbeat via an ECG device. While the heart is in its resting phase (diastole), the cuffs inflate sequentially from bottom to top; the moment the heart contracts (systole), the pressure is suddenly released.
This synchronized movement has two main effects: while the heart is resting, it pushes blood in the legs upward, toward the heart and coronary vessels; when the heart contracts, the sudden release of pressure reduces vascular resistance, making it easier for the heart to pump blood. As a result, the amount of blood reaching the coronary circulation increases while the heart expends less effort.
What Happens in the Body During a Session?
A standard EECP session lasts about an hour and is performed entirely while dressed, in a lying position; a sensor attached to your finger and ECG electrodes placed on your chest allow the device to time the cuffs according to your heart rhythm: while the heart is resting, the cuffs inflate in a wave motion from the calf toward the hip; the moment the heart beats, the pressure is suddenly released. This cycle repeats an average of 60-80 times per minute during the session.
What Changes in the Long Term? Collateral Vessels and Intravascular Effects
The effect of a single EECP session is temporary; however, when the treatment protocol (typically over 35 sessions) is repeated, several physiological changes have been described in the scientific literature: collateral vessel development — repeated increases in flow are thought to encourage the body to develop its own "natural bypass" pathways around blocked or narrowed vessels; endothelial function — the shear stress that blood flow creates on the vessel wall has been associated with increased nitric oxide release from endothelial cells lining the inner surface of the vessel; arterial stiffness — some randomized studies have observed a reduction in arterial stiffness in patients receiving active EECP.
These effects can vary from person to person and may not be observed to the same degree in every patient; who is suitable for EECP can only be determined through individual cardiological evaluation.
The Scientific Studies Supporting This Mechanism
The mechanism and effectiveness of EECP have been the subject of scientific research for more than 30 years, including the MUST-EECP randomized controlled trial, the IEPR multicenter patient registry, and randomized studies on arterial stiffness.
Note: This content is for general informational purposes only and is not a substitute for medical advice. Your eligibility for treatment can only be determined through an individual evaluation with our cardiologist.
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