Since therapeutic decisions in @entity1 with @entity951 are usually based on the reported frequency of exertional and @entity158 the relations between the historical frequency of @entity662 and objective evidence of @entity296 during normal daily activity were investigated in 100 @entity1 by 48 hour ambulatory ST segment monitoring. Of these 100 consecutive @entity1 with @entity662 , 91 had typical @entity158 and nine some atypical features. Twenty six @entity1 had normal coronary arteries and 52 of the 74 with significant @entity301 had ambulatory ST segment changes. There was no relation between the frequency of reported exertional or @entity158 and (a) the severity of @entity453 or (b) the frequency of daytime or nocturnal ST segment changes. Twelve @entity1 had nocturnal ST segment changes but only four complained of @entity951 . Most @entity1 had both @entity158 and painless episodes of ST segment changes, but a substantial number had either painless or @entity158 episodes only. These differences were not related to the severity of @entity453 . @entity662 after the onset of ST segment change was perceived with wide interpatient and intrapatient variability. Thus the frequency of @entity158 is a poor indicator of the frequency of significant @entity299 . Individual differences in the perception of @entity158 may be more important.

How important is a history of @entity662 in determining the degree of ischaemia in XXXX with @entity951 ?

@entity1 :: ('9606', 'Species') :: ['patients'] @entity662 :: ('MESH:D002637', 'Disease') :: ['Chest pain', 'chest pain'] @entity296 :: ('MESH:D009202', 'Disease') :: ['myocardial ischaemia'] @entity301 :: ('MESH:D003327', 'Disease') :: ['coronary disease'] @entity951 :: ('MESH:D000787', 'Disease') :: ['nocturnal angina', 'angina pectoris'] @entity158 :: ('MESH:D010146', 'Disease') :: ['rest pain', 'pain', 'painful'] @entity299 :: ('MESH:D006331', 'Disease') :: ['cardiac ischaemia'] @entity453 :: ('MESH:D003324', 'Disease') :: ['coronary artery disease']
@entity1 :: (9606,Species) :: ['patients']
