Indications for cardiac resynchronization therapy

Cardiac resynchronization therapy is indicated for heart block, heart failure, non-ischemic cardiomyopathy, and abnormal cardiac synchrony. Cardiac resynchronization therapy is a treatment that improves cardiac synchrony and function by implanting a pacemaker. The following indications for cardiac resynchronization therapy are: 1. Heart block: The normal pacing point of the heart is located in the sinoatrial node, and the impulse is transmitted to the ventricles through the normal conduction system. If the atrioventricular conduction system is abnormal, resulting in delay or interruption of impulse conduction, cardiac conduction block will occur. Cardiac resynchronization therapy can stimulate the atria and ventricles through pacing electrodes, restore normal atrioventricular conduction, and improve cardiac systolic function. 2. Heart failure: Heart failure is the terminal stage of heart disease, in which both systolic and diastolic functions of the heart are impaired. Cardiac resynchronization therapy can improve the symptoms and prognosis of heart failure by improving cardiac synchrony, increasing cardiac systolic efficiency, reducing cardiac volume load and pressure load. Non-ischemic cardiomyopathy refers to cardiomyopathy caused by causes other than coronary atherosclerotic heart disease, such as dilated cardiomyopathy and hypertrophic cardiomyopathy. Cardiac resynchronization therapy can improve the prognosis of patients with non-ischemic cardiomyopathy by improving cardiac synchrony, increasing cardiac systolic efficiency and reducing arrhythmia. 4. Cardiac synchrony abnormal movement: Cardiac resynchronization pacing therapy is also suitable for some patients with cardiac synchrony abnormal movement, such as left bundle branch block, complete left bundle branch block, etc. Cardiac resynchronization therapy can stimulate atria and ventricles through pacing electrodes to restore normal cardiac synchrony and improve cardiac systolic function. It should be noted that cardiac resynchronization therapy is an invasive treatment method that needs to be performed under the guidance of a professional doctor. Before treatment, the doctor will conduct a detailed evaluation of the patient, including cardiac ultrasound, ECG, etc., to determine whether the patient is suitable for cardiac resynchronization therapy. At the same time, the patient needs to follow up and manage according to the doctor's advice after treatment, including regular review and adjustment of drug therapy, etc., to ensure the effectiveness and safety of treatment. In conclusion, cardiac resynchronization therapy is an effective treatment that can improve cardiac synchrony and function and improve the quality of life and prognosis of patients with heart failure. However, this treatment has certain indications and limitations, which need to be evaluated and selected under the guidance of professional doctors.