Cardiac arrhythmias can cause impairment which can be quantitated using the AMA criteria.
Parameters:
(1) symptoms
(2) evidence of cardiac arrhythmia
(3) other findings
Evidence for Cardiac Arrhythmia |
Symptoms |
Response to Therapy |
Impair-ment of the Whole Person |
documented by ECG or has had an isolated syncopal episode; no evidence of >= 3 ectopic beats or periods of asystole > 1.5 seconds; both atrial and ventricular rates are between 50-100 beats/minute |
none during ordinary activities; no evidence of organic heart disease |
none required |
0 - 9% |
documented by ECG or has had an isolated syncopal episode |
evidence of organic heart disease; no symptoms during ordinary activities |
controlled by therapy (drug, diet and/or pacemaker) |
10 – 29% |
documented by ECG |
infrequent palpitations and/or episodes of lightheadedness, presyncope or temporary inadequate cardiac output |
symptoms partially responsive to therapy (drugs, diet, and/or pacemaker) |
30 – 49% |
constant and documented by ECG |
episodes of syncope; functional Class 3 or 4; |
symptoms present despite maximal therapy |
50 – 100% |
where:
• Functional classification uses the 1964 NYHA criteria.
• A patient who has had surgery, catheter procedure, or implantable cardioverter-defibrillator for cardiac arrhythmia is classified according to findings above.
Specialty: Sports Medicine & Rehabilitation, Cardiology, Emergency Medicine