Key result
In acute coronary syndrome patients, the diastolic-to-systolic peak velocity ratio by TTDE was significantly lower in those with severe LAD stenosis than those without (1.44 vs 2.10, P<0.0001).
Why the study?
Does transthoracic Doppler echocardiography accurately detect severe stenosis and total occlusion in the left anterior descending artery in emergency patients with acute coronary syndrome?
Population
49 consecutive patients with acute coronary syndrome complaining of chest pain, scheduled for emergency…
Comparison
Transthoracic Doppler echocardiography to… vs Coronary angiography as the reference standard.
Design
Cross-sectional
Authors
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Supports TTDE for noninvasive LAD stenosis detection in ACS; hypothesis-generating and should not yet change practice.
Observational (n=49)
Does transthoracic Doppler echocardiography accurately detect severe stenosis and total occlusion in the left anterior descending artery in emergency patients with acute coronary syndrome?
Absolute Event Rate: 1.44% vs 2.1%
p-value: p=< 0.0001
Transthoracic Doppler echocardiography is a feasible and accurate noninvasive tool for detecting critical LAD stenosis in emergency patients with acute coronary syndrome.
Tani et al. (2008) conducted an observational in Acute coronary syndrome (n=49). Transthoracic Doppler echocardiography (TTDE) vs. Patients without severe stenosis was evaluated on Diastolic-to-systolic peak velocity ratio (DSVR) of LAD flow (p=< 0.0001). In acute coronary syndrome patients, the diastolic-to-systolic peak velocity ratio by TTDE was significantly lower in those with severe LAD stenosis than those without (1.44 vs 2.10, P<0.0001).
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