Why does mitral stenosis cause enlargement of the left atrium?

Written by Di Zhi Yong

Cardiology

Updated on September 13, 2024

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Because mitral stenosis can lead to changes in the mitral valve, particularly causing excessive pressure in the left ventricle, this excessive pressure can lead to enlargement of the left atrium, which are complementary conditions.

During this period, it is still important to actively manage the condition, using medication treatment. If the area of stenosis is relatively large, surgical treatment is needed, as balloon dilation can currently be used to alleviate this condition. Early treatment is best to relieve clinical symptoms. At the same time, it is also important to actively monitor changes in heart rate, blood pressure, and pulse, so as to control the heart rate and reduce myocardial oxygen consumption.

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Written by Li Hai Wen

Cardiology

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Can mild regurgitation of the heart's mitral and tricuspid valves be repaired?

Mild regurgitation of the heart's mitral and tricuspid valves is a very common phenomenon clinically. This mild regurgitation will not disappear nor can it be repaired. However, from a medical perspective, this mild regurgitation is a normal physiological phenomenon; it does not cause symptoms, does not affect health, and does not require treatment. Naturally, there is also no need to consider repairs. In daily life, it is important to maintain good habits, abstain from smoking and alcohol, engage in regular exercise, and have periodic health checks including blood pressure monitoring and blood tests for lipids and glucose. Early identification and proactive intervention in cases of high blood pressure, cholesterol, and blood sugar can effectively prevent worsening of this regurgitation.

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Written by Di Zhi Yong

Cardiology

42sec

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Why does mitral stenosis cause enlargement of the left atrium?

Because mitral stenosis can lead to changes in the mitral valve, particularly causing excessive pressure in the left ventricle, this excessive pressure can lead to enlargement of the left atrium, which are complementary conditions. During this period, it is still important to actively manage the condition, using medication treatment. If the area of stenosis is relatively large, surgical treatment is needed, as balloon dilation can currently be used to alleviate this condition. Early treatment is best to relieve clinical symptoms. At the same time, it is also important to actively monitor changes in heart rate, blood pressure, and pulse, so as to control the heart rate and reduce myocardial oxygen consumption.

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Written by Di Zhi Yong

Cardiology

44sec

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Can someone with mitral stenosis fly on a plane?

If the patient has a history of mitral stenosis, it is best not to fly, as flying may exacerbate the symptoms, causing situations like palpitations, chest tightness, and breathing difficulties. If the mitral stenosis is treated timely, these symptoms will subside. During this period, it is also important to monitor changes in the patient's heart rate, blood pressure, and pulse. An overly rapid heart rate can sometimes cause palpitations. It is especially important to manage the ventricular rate. The patient's diet should primarily consist of low salt, low fat, and low sugar. Regular re-examinations of the electrocardiogram and echocardiogram are necessary, and if symptoms worsen, it is critical to go to the hospital for treatment promptly.

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Written by Xie Zhi Hong

Cardiology

1min 1sec

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The cause of thromboembolism in mitral stenosis

The mitral valve is an important part of the left heart system, located between the left ventricle and the left atrium. When the heart is in diastole, the mitral valve opens, allowing blood from the atrium to be transferred into the ventricle. However, when the mitral valve is narrowed, blood from the left atrium cannot flow into the left ventricle in a timely manner. This leads to an increased load on the left atrium. Over time, this can cause severe enlargement of the left atrium and lead to atrial fibrillation, a type of cardiac arrhythmia. Once atrial fibrillation occurs, it can cause thrombosis in the left atrium, particularly in the part called the atrial appendage. If a thrombus forms, it may dislodge during the heart's contractions, potentially causing systemic embolism with serious consequences, including paralysis or even sudden death.

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Written by Xie Zhi Hong

Cardiology

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Mitral stenosis which ventricle hypertrophy

Patients with mitral stenosis need to pass the blood from the atrium to the heart through the mitral valve during cardiac diastole. The narrowing condition in patients with mitral stenosis leads to an accelerated and prolonged flow of blood from the atrium to the ventricle. As a result, atrial pressure increases, and this heightened atrial pressure can cause pulmonary congestion. In severe cases, it leads to pulmonary hypertension. Pulmonary hypertension, in turn, can cause enlargement of the right ventricle and tricuspid regurgitation, which can lead to the patient exhibiting cyanosis. Therefore, in patients with mitral stenosis, the atrium gradually enlarges in the early stages, and later stages may present with right ventricular hypertrophy.