Format

Send to

Choose Destination
See comment in PubMed Commons below
Int J Cardiol. 2014 Feb 1;171(2):153-60. doi: 10.1016/j.ijcard.2013.11.038. Epub 2013 Nov 23.

Dobutamine stress cardiac magnetic resonance versus echocardiography for the assessment of outcome in patients with suspected or known coronary artery disease. Are the two imaging modalities comparable?

Author information

1
University of Heidelberg, Department of Cardiology, Heidelberg, Germany.
2
University of Heidelberg, Institute of Psychology, Heidelberg, Germany.
3
University of Heidelberg, Department of Cardiology, Heidelberg, Germany. Electronic address: gkorosoglou@hotmail.com.

Abstract

PURPOSE:

To compare the value of Dobutamine stress echocardiography (DSE) with that provided by Dobutamine Cardiac Magnetic Resonance (DCMR) for the non-invasive risk stratification of patients with suspected or known coronary artery disease (CAD).

METHODS:

Patients with suspected or known CAD underwent either DSE or DCMR using the same standardized protocol. Patient matching was then performed retrospectively for age, gender and risk factors. Outcome data including cardiac death and non-fatal myocardial infarction (defined as hard cardiac events) and 'late' revascularization performed >90days after the diagnostic procedures were collected during at least 6months.

RESULTS:

Follow-up data were available in 1852 patients who completed either DSE (n=884) or DCMR (n=884) during a mean follow-up duration of 4.1±2.4 and 3.9±1.9years, respectively (p=NS). Matched patients exhibited an overall high risk profile (69±9years; 69% male, 70% history of CAD and 26% diabetes mellitus in both groups). Using multivariable analysis, both modalities successfully identified patients with inducible ischemia at higher risk for subsequent hard cardiac events, surpassing the value of conventional risk factors like age, male gender and diabetes (HR=9.2; 95%CI=5.6-14.9 for DCMR versus 2.5; 95%CI=1.7-3.7 for DSE). By testing for interaction the predictive capacity of DCMR was higher than that provided by DSE (p=0.02). Patients with negative DCMR exhibited lower event rates compared to those with negative DSE (annual hard cardiac event rate of 0.8% versus 3.2%, p=0.002).

CONCLUSIONS:

DSE & DCMR aid the risk stratification of CAD patients. However, inducible WMA during DCMR are associated with a higher risk for subsequent cardiac events. Patients with negative DCMR on the other hand, exhibited a lower event rate compared to those with negative DSE.

KEYWORDS:

Cardiac magnetic resonance; Coronary artery disease; Echocardiography; High-dose dobutamine stress testing; Wall motion analysis

PMID:
24342416
DOI:
10.1016/j.ijcard.2013.11.038
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center