What is the normal value for mitral valve flow velocity?

Feb 09, 2023 Source: Cainiu Health

Dr. Tian Hongbo

Introduction

The normal blood flow velocity after valve opening, specifically for mitral valve flow, ranges from 0.3 to 0.9 meters per second. The mitral valve consists of two leaflets attached to the circumference of the left atrioventricular orifice and connected via chordae tendineae to the papillary muscles; it functions to prevent backflow of blood from the left ventricle into the left atrium. Additionally, adequate rest should be maintained to avoid excessive fatigue, and proper nutritional support should be ensured through diet.

The normal blood flow velocity after valve opening, in reference to the mitral valve, ranges between 0.3 and 0.9 meters per second.

The mitral valve consists of two leaflets attached to the circumference of the left atrioventricular orifice, connected via chordae tendineae to the papillary muscles, and functions to prevent backflow of blood from the left ventricle into the left atrium. During color Doppler echocardiography, the peak filling velocity in early diastole is represented by the E wave, while the peak filling velocity in late diastole is represented by the A wave. The ratio of E to A should not be less than 1.2, with higher peak values typically observed in middle-aged individuals. Diastolic dysfunction leads to a reduction in the E/A ratio. During systole, the valve remains closed; during diastole, the valve opens, allowing blood flow through it.

If mitral valve blood flow velocity is abnormal, in addition to actively following the doctor's treatment plan, it is important to maintain emotional stability and avoid excessive psychological stress in daily life. Adequate rest should be prioritized to prevent overexertion, and nutritional intake should be ensured by consuming nutrient-rich foods.

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