BACKGROUND: @entity662 or discomfort due to angina can have a potentially poor prognosis, emphasising the importance of prompt and accurate diagnosis. The National Institute for Health and Clinical Excellence (NICE) published ' @entity662 of recent onset' guidelines in March 2010. These guidelines appraise the role of newer non-invasive modalities in @entity299 in the prompt and cost-effective diagnosis of @entity453 . OBJECTIVE: To study the service requirement for non-invasive @entity299 in @entity1 with stable @entity662 using current NICE guidance. DESIGN: Single-centre, 6-month (January 2010 to June 2010) observational study. SETTING: Rapid access @entity662 clinics in a large university teaching hospital providing secondary care cardiology services. METHODS: Clinic letters were used to ascertain the type of @entity662 and cardiovascular risk factors. The resting 12-lead ECG was examined for any ischaemic changes. @entity1 were then retrospectively allocated to an assessment pathway based on NICE guidance for the evaluation of stable @entity662 . Pretest likelihood of @entity453 was calculated using Pryor et al's table as published by NICE. Depending on the calculated pretest probability, their NICE-suggested investigation was determined. This included no further investigations, cardiac CT, functional imaging or invasive angiography. RESULTS: 500 @entity1 were seen in rapid access @entity662 clinics, 65 of which did not meet the referral criteria of having @entity662 . On the basis of previous practice, 52% of @entity1 were likely to have an exercise tolerance test. According to current NICE guidance as applied to our cohort of @entity1 , 128 (30%) would have required functional imaging, 119 (27%) no further investigation, 95 (22%) cardiac CT, and 93 (21%) invasive angiography. CONCLUSION: Functional imaging and then cardiac CT are the main investigations required in the assessment of @entity1 with stable @entity662 .

Impact on service provision for non-invasive XXXX following NICE recommendations: an observational study.

@entity662 :: ('MESH:D002637', 'Disease') :: ['Chest pain', 'chest pain'] @entity453 :: ('MESH:D003324', 'Disease') :: ['coronary artery disease'] @entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity299 :: ('MESH:D006331', 'Disease') :: ['cardiac imaging']
@entity299 :: (MESH:D006331,Disease) :: ['cardiac imaging']
