The following conditions of the heart are causes for rejection of membership:

(1) All organic valvular diseases of the heart, including those improved by surgical procedures;

(2) Coronary artery disease or myocardial infarction, old or recent or true angina pectoris, at any time;

(3) Electrocardiographic evidence of major arrhythmias such as—

(a) Atrial tachyardia, flutter, or fibrillation, ventricular tachycardia or fibrillation;

(b) Conduction defects such as first degree atrio-ventricular block and right bundle branch block (These conditions occurring as isolated findings are not unfitting when cardiac evaluation reveals no cardiac disease.);

(c) Left bundle branch block, second and third degree aV block;

(d) Unequivocal electrocardiographic evidence of old or recent myocardial infarction; coronary insufficiency at rest or after stress; or evidence of heart muscle disease;

(4) Hypertrophy or dilation of the heart as evidenced by clinical examination or roentgenographic examination and supported by electrocardiographic examination. Care should be taken to distinguish abnormal enlargement from increased diastolic filling as seen in the well conditioned subject with a sinus bradycardia;

(5) Myocardial insufficiency (congestive circulatory failure, cardiac decompensation) obvious or covert, regardless of cause;

(6) Paroxysmal tachycardia within the preceding five years, or at any time if recurrent or disabling or if associated with electrocardiographic evidence of accelerated aV conduction (Wolff-Parkinson-White);

(7) Pericarditis; endocarditis; or myocarditis, history or finding of, except for a history of a single acute idiopathic or coxsackie pericarditis with no residuals;

(8) Tachycardia persistent with a resting pulse rate of 100 or more, regardless of cause.