This is an automatically translated article.
The heart is an organ of the circulatory system that plays the most important role in the human body, helping to pump oxygen and nutrient-rich blood throughout the body to maintain life. In the human body, the heart contracts continuously up to 100,000 times per day and pumps 5-6 liters of blood per minute. Therefore, the assessment of cardiac indicators helps doctors find abnormal diseases of the circulatory system or related structures for timely diagnosis and treatment.1. Indicators to evaluate the function of the heart
The heart acts mainly as a blood pump in the body, so to evaluate heart function must evaluate the physiological activity and anatomical structure of the heart. Cardiac function is expressed by the following values:
EDV: end-diastolic volume by Teicholz method ESV: end-systolic volume by Teicholz method Ejection/systolic volume Cardiac output: blood volume pumped for 1 minute Ejection fraction: percentage of EDV to blood pumped out/systolic
2. How to measure indicators in echocardiography
Echocardiography is a non-invasive exploratory method that helps to investigate the morphology, function and hemodynamics of the heart chambers, septum, pericardium and major blood vessels connected to the heart. To measure the necessary indicators in the assessment of cardiac function specifically are as follows:
Diastolic period is the period of ventricular filling. At the end of this period, the ventricles contain about 130 ml of blood, which is called the end diastolic volume (EDV). Thus, EDV falls into about 130 ml Systolic period is the period when the ventricles contract to eject blood into the arteries but not all 130 ml but still retain about 60 ml, this amount of blood is called end blood volume. systolic volume (ESV). Thus, the ESV falls to about 60 ml. The ejection fraction EF, which is the ratio of the amount of blood ejected divided by the volume of blood at a full ventricle, is equivalent to about 54% in healthy individuals.
Siêu âm tim giúp bác sĩ đánh giá EDV và ESV
Echocardiography will help doctors calculate EDV and ESV, thereby giving the patient's ejection fraction and surveying the ejection function of the left ventricle. Based on flow through the aortic valve to assess cardiac output
3. The role of echocardiography in the assessment of cardiac indicators
With ultrasound, doctors can observe the structure of the heart, evaluate cardiac indicators and abnormalities when the heart is working. Allows to know:
How the heart works, contracts Heart size and shape The size and movement of the heart's walls The pumping power of the heart Assess the functioning of the heart valves Does the patient have valvular stenosis? Is blood backing up through the heart valves?
Các chỉ số tim trong kết quả siêu âm tim có thể đánh giá bệnh nhân có máu tràn ngược qua van tim không
Is there a heart tumor, inflammation around the heart valves, heart muscle or blood vessels? Detect problems with large blood vessels in and out of the heart Problems with the heart muscle, endocardium, pericardium Detect heart valve conditions Abnormalities in the openings of the heart chambers Blood clots have formed in the heart chambers ? The indicators to evaluate the function of the heart during echocardiography will help doctors detect abnormalities to come up with an effective treatment plan. However, to ensure accurate results, you should choose reputable medical facilities to examine and perform ultrasound.
Vinmec International General Hospital has applied ultrasound technology in examination and diagnosis of many diseases, including cardiovascular diseases. The echocardiographic technique to evaluate the indicators at Vinmec is carried out methodically and in accordance with the process standards by a team of highly skilled doctors and nurses, modern machinery system, thus giving accurate results, contributing to A significant part in determining the disease and stage of the disease to coordinate with other specialties to come up with the most effective treatment regimen.
If you have a need for medical examination by modern and highly effective methods, please register for an online examination.
Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.
