Gimelli A, Liga R, Giorgetti A, Casagranda M, Marzullo P. Stress-induced alteration of left ventricular eccentricity: An additional marker of multivessel CAD.
J Nucl Cardiol 2019;
26:227-232. [PMID:
28353212 DOI:
10.1007/s12350-017-0862-7]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 03/18/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND
Abnormal left ventricular (LV) eccentricity index (EI) is a marker of adverse cardiac remodeling. However, the interaction between stress-induced alterations of EI and major cardiac parameters has not been explored. We sought to evaluate the relationship between LV EI and coronary artery disease (CAD) burden in patients submitted to myocardial perfusion imaging (MPI).
METHODS AND RESULTS
Three-hundred and forty-three patients underwent MPI and coronary angiography. LV ejection fraction (EF) and EI were computed from gated stress images as measures of stress-induced functional impairment. One-hundred and thirty-six (40%), 122 (35%), and 85 (25%) patients had normal coronary arteries, single-vessel CAD, and multivessel CAD, respectively. Post-stress EI was lower in patients with multivessel CAD than in those with normal coronary arteries and single-vessel CAD (P = 0.001). This relationship was confirmed only in patients undergoing exercise stress test, where a lower post-stress EI predicted the presence of multivessel CAD (P = 0.039).
CONCLUSIONS
Post-stress alterations of LV EI on MPI may unmask the presence of multivessel CAD.
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