Pacemakers are not a panacea. Pacing therapy is used to correct abnormal heart rates and rhythms, causing the right and left ventricles to contract in unison, and should only be used if indicated.
Pacemakers work by mimicking the normal formation and conduction of impulses in the heart, delivering electrical impulses to excite the heart and cause it to contract. It can be used to treat certain cardiac dysfunctions caused by arrhythmias. It can be used to treat cardiac arrhythmias.
In recent years, cardiac pacing is not only limited to the treatment of bradyarrhythmias, but is also gradually being used to treat tachyarrhythmias and heart failure, to prevent and treat malignant arrhythmias (e.g., long QT interval syndrome, etc.), and to assist in the treatment of dilated cardiomyopathy, hypertrophic cardiomyopathy, and persistent heart failure.
Temporary pacing can also be used in some patients, such as acute myocardial infarction combined with atrioventricular block, reversal of some ventricular tachycardia, and rescue cardiopulmonary resuscitation.
Pacemaker therapy is an option only if there are indications for its use, therefore, pacemakers are not a panacea.