Key result
Mitral L waves signal elevated LV filling pressures in heart failure patients.
Why the study?
L waves are an unusual Doppler finding associated with elevated left ventricular filling pressures in heart failure, but their clinical implications are not well defined.
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Design
Other
Answers are grounded in this paper and cite their sources.
L waves were associated with elevated LV filling pressures; leaves open their incremental value in diastolic assessment.
L waves are an unusual finding in the analysis of mitral pulsed-wave Doppler. This wave is recorded as flow the left atrium and left ventricle during diastole, to elevated left ventricular (LV) filling pressures.1---3 In situation, triphasic mitral filling can be observed, with presence of mid-diastolic L waves
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Vega et al. (2023) studied this question. L waves on mitral valve pulsed-wave Doppler indicate mid-diastolic flow caused by elevated left ventricular filling pressures in patients with heart failure.
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