Key result
Speckle tracking plus low-dose dobutamine stress echo matches CMR-FT accuracy for detecting CMVO.
Why the study?
Coronary microvascular obstruction is associated with poor prognosis after STEMI, but data comparing CMR-FT with STE combined with LDDSE were scarcely available.
Does STE+LDDSE provide comparable diagnostic accuracy to CMR-FT for detecting CMVO in post-PCI STEMI patients?
Comparison
CMR-FT vs STE+LDDSE vs STE alone
Design
Diagnostic comparison study
Authors
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STE+LDDSE may offer accessible CMVO detection comparable to CMR-FT post-PCI STEMI; hypothesis-generating and requires prospective validation before practice change.
Observational (n=61)
Does STE+LDDSE provide comparable diagnostic accuracy to CMR-FT for detecting CMVO in post-PCI STEMI patients?
Absolute Event Rate: 78.7% vs 80.25%
p-value: p=>0.05
STE combined with low-dose dobutamine stress echocardiography provides comparable diagnostic accuracy to CMR-FT for detecting coronary microvascular obstruction in post-PCI STEMI patients, offering a potentially more accessible alternative.
Liu et al. (2022) conducted an observational in ST-segment elevation myocardial infarction (STEMI) (n=61). Speckle tracking echocardiography combined with low-dose dobutamine stress echocardiography (STE+LDDSE) vs. Cardiac magnetic resonance feature tracking (CMR-FT) was evaluated on Detection of infarcted myocardium segments with coronary microvascular obstruction (CMVO) (p=>0.05). Speckle tracking echocardiography combined with low-dose dobutamine stress echocardiography detected CMVO with similar accuracy to CMR-FT (78.70% vs 80.25%; P>0.05).
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