Heart attack means -
(1) A myocardial infarction; or
(2) A cardiac-event (i.e., cessation, interruption, arrest, or other similar disturbance of heart function), not included in paragraph (1) of this definition, that is -
(i) Acute; and
(ii) Directly and proximately caused by a pathology (or pathological condition) of the heart or of the coronary arteries.