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There is no documentation of three or more consecutive ectopic beats or periods of asystole greaterthan 1.5 seconds, and both the atrial and ventricular rates are maintained between 50 and 100 beats per minute; and There is no evidence of organic heart disease.
Class 2 Impairment of the Whole Person, 15—29% The patient is asymptomatic during ordinary daily activities and a cardiac arrhythmia is documented by ECG; and Moderate dietary adjustment, or the use of drugs, or an artificial pacemaker, is required to prevent symptoms related to the cardiac arrhythmia; or The arrhythmia persists and there is organic heart disease.
Class 3 Impairment of the Whole Person, 30—54%The patient has symptoms despite the use of dietary therapy or drugs or of an artificial pacemaker and a cardiac arrhythmia is documented with ECG; but The patient is able to lead an active life and the symptoms due to the arrhythmia are limited to infrequent palpitations and episodes of lightheadedness or other symptoms of temporarily inadequate cardiac output.
Class 4 Impairment, 55—95%The patient has symptoms due to documented cardiac arrhythmia that are constant and interfere with ordinary daily activities (functional class 3 or 4); or
The patient has frequent symptoms of inadequate cardiac output documented by ECGdue to frequent episodes of cardiac arrhythmia; or The patient continues to have episodes of syncope that are either due to or have a high probability of being related to the arrhythmia. To fit into this category of impairment, the symptoms must be present despite the use of dietary therapy, drugs, or artificial pacemakers.If an arrhythmia is a result of organic heart disease, the arrhythmia should be evaluated separately and its impairment rating should be combined with the impairment rating for the organic heart disease using the Combined Values Chart.
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