Dr Ramji Mehrotra | What is cardiac resynchronization therapy?

by dr ramji Mehrotra dr ramji mehrotra cardiac surgeon

Cardiac resynchronization therapy (CRT) is a specialized medical treatment designed to improve the function of the heart in individuals with certain types of heart failure. Also known as biventricular pacing, CRT involves the implantation of a device that helps coordinate the contractions of the heart's ventricles, thereby enhancing its pumping efficiency. This therapy has proven to be a valuable option for individuals who experience heart failure symptoms despite optimal medical management.

Heart failure can occur due to various underlying conditions, such as coronary artery disease, hypertension, or cardiomyopathy. As a result, individuals with heart failure may experience symptoms like fatigue, shortness of breath, fluid retention, and reduced exercise capacity.

According to Dr. Ramji Mehrotra, one of India’s most popular cardiac surgeons, CRT is primarily used to treat a specific subset of heart failure patients with "dyssynchrony". Dyssynchrony refers to a lack of coordination in the contraction of the heart's ventricles, the lower chambers responsible for pumping blood to the body. In these individuals, the right and left ventricles do not contract simultaneously, leading to inefficient pumping and reduced blood flow.

CRT involves the implantation of a small device known as a cardiac resynchronization therapy device (CRT-D) or pacemaker (CRT-P) under the skin, typically below the collarbone. This device is equipped with leads (thin insulated wires) that are threaded through veins and positioned in specific regions of the heart.

Once in place, the CRT device delivers precisely timed electrical impulses to the right and left ventricles. These impulses synchronize the contractions of the ventricles, ensuring that they pump together, which can significantly improve the heart's efficiency and overall function.

Not all heart failure patients are suitable candidates for CRT. Typically, it is recommended for individuals who meet specific criteria:

Ø  Reduced Ejection Fraction: CRT is usually reserved for individuals with reduced left ventricular ejection fraction (LVEF), which indicates a weakened heart muscle.

Ø  Symptoms Despite Medications: Candidates often continue to experience heart failure symptoms despite receiving optimal medical therapy.

Ø  Specific ECG Patterns: Certain ECG (electrocardiogram) patterns, such as left bundle branch block, may indicate the presence of dyssynchrony and make individuals suitable candidates for CRT.

Dr Ramji Mehrotra says that the primary goal of CRT is to improve the patient's quality of life by reducing symptoms and enhancing their ability to perform daily activities. Some of the key benefits include:

Ø  Improved Heart Function: CRT helps the heart pump more efficiently, increasing the amount of blood circulated with each beat.

Ø  Symptom Relief: Many patients experience a reduction in symptoms like fatigue, shortness of breath, and swelling.

Ø  Reduced Hospitalizations: CRT can lower the risk of hospitalizations related to heart failure exacerbations.

Ø  Prolonged Life: In some cases, CRT may extend the lifespan of individuals with heart failure.

It is crucial for individuals with heart failure to take their doctor’s opinion in determining whether CRT is an appropriate treatment option for them.

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Created on Sep 26th 2023 02:52. Viewed 56 times.

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