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01.03.2009 | Research | Ausgabe 1/2009 Open Access

Cardiovascular Ultrasound 1/2009

Predicting clinically unrecognized coronary artery disease: use of two- dimensional echocardiography

Zeitschrift:
Cardiovascular Ultrasound > Ausgabe 1/2009
Autoren:
Su Min Chang, Abdul Hakeem, Sherif F Nagueh
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1476-7120-7-10) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors' contributions

SC and SN contributed to creation of the conceptual design, literature search, analysis of the data, interpretation of results, and writing of the manuscript. AH revised and edited the final manuscript.

Abstract

Background

2-D Echo is often performed in patients without history of coronary artery disease (CAD). We sought to determine echo features predictive of CAD.

Methods

2-D Echo of 328 patients without known CAD performed within one year prior to stress myocardial SPECT and angiography were reviewed. Echo features examined were left ventricular and atrial enlargement, LV hypertrophy, wall motion abnormality (WMA), LV ejection fraction (EF) < 50%, mitral annular calcification (MAC) and aortic sclerosis/stenosis (AS). High risk myocardial perfusion abnormality (MPA) was defined as >15% LV perfusion defect or multivessel distribution. Severe coronary artery stenosis (CAS) was defined as left main, 3 VD or 2VD involving proximal LAD.

Results

The mean age was 62 ± 13 years, 59% men, 29% diabetic (DM) and 148 (45%) had > 2 risk factors. Pharmacologic stress was performed in 109 patients (33%). MPA was present in 200 pts (60%) of which, 137 were high risk. CAS was present in 166 pts (51%), 75 were severe. Of 87 patients with WMA, 83% had MPA and 78% had CAS. Multivariate analysis identified age >65, male, inability to exercise, DM, WMA, MAC and AS as independent predictors of MPA and CAS. Independent predictors of high risk MPA and severe CAS were age, DM, inability to exercise and WMA.
2-D echo findings offered incremental value over clinical information in predicting CAD by angiography. (Chi square: 360 vs. 320 p = 0.02).

Conclusion

2-D Echo was valuable in predicting presence of physiological and anatomical CAD in addition to clinical information.
Zusatzmaterial
Authors’ original file for figure 1
12947_2008_257_MOESM1_ESM.pdf
Literatur
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