mitral inflow pattern
Doppler echocardiographic assessment of blood flow through the mitral valve during diastole.
Full Definition
Mitral inflow pattern refers to the characteristic Doppler flow profile across the mitral valve during diastolic filling, consisting of early (E wave) and late (A wave) components. The E/A ratio, deceleration time, and isovolumic relaxation time provide information about left ventricular diastolic function and filling pressures. Normal young adults typically show E/A ratios of 1.0-2.0, while aging and diastolic dysfunction alter these patterns. Pseudonormalization can occur in advanced diastolic dysfunction, making tissue Doppler assessment essential for complete evaluation.
Usage
Usage note: Should report E/A ratio, deceleration time, and integrate with tissue Doppler findings.
In Context
- "The mitral inflow pattern showed an E/A ratio of 0.7 with prolonged deceleration time, consistent with impaired relaxation." — Echocardiography interpretation
- "Pseudonormal mitral inflow pattern required tissue Doppler assessment for accurate diastolic function grading." — Cardiac imaging report