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How does a CRT device help heart failure patients?

Kevin P. Jackson, MD
Cardiology (Cardiovascular Disease)
Some heart failure patients need specialized care for hearts that pump with too little force. Such patients might benefit from an implantable device called an implantable cardioverter defibrillator (ICD). Between one-third and one-half of ICD candidates may benefit from a type of ICD called a cardiac resynchronization therapy (CRT) device. The CRT device is recommended for many heart failure patients who have both low ejection fractions (EFs) and electrocardiograms (ECGs) that show delayed and disorganized electrical activation of the heart, which can worsen the mechanical pumping problem.

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