This is an automatically translated article.
The article was professionally consulted by Specialist II, Senior Doctor Doan Du Dat - General Internal Medicine Doctor - Department of Medical Examination and Internal Medicine - Vinmec Ha Long International Hospital.Right bundle branch block is a more benign arrhythmia than left bundle branch block, collectively known as an intraventricular conduction disturbance, but it can lead to dyspnea, palpitations, or chest pain. Therefore, it is necessary to have appropriate treatment methods and rest regimes.
1. What is a right branch block?
Branch block is a disorder of impulse conduction in one branch of the his bundle, also known as intraventricular conduction disturbances, including left bundle branch block and right bundle branch block.Right bundle branch block is a conduction disorder on the right branch of the bundle of His, possibly because that branch is severed or damaged, so the impulse from the atria descending will have to go to the left to depolarize first and then to the right to depolarize. Right ventricular block shown on electrocardiogram.
There are 2 types of right bundle branch block:
Incomplete right bundle branch block Right bundle branch block On electrocardiogram right bundle branch block in leads V1, V2 shows wide QRS interval ≥ 0.11s, hooks with internal branch Late electroencephalogram, right axis deviation with altered STT segment secondary to left direction with QRS
Right bundle branch block is divided into two types, complete right bundle branch block and incomplete right bundle branch block. In which, incomplete right bundle branch block is a mild form of complete right bundle branch block.
The waveform in the right bundle branch block is as follows:
2. Causes of right bundle branch block
Right bundle branch block present in healthy individuals is considered benign without any treatment; People with cardiovascular disease such as: people with hypertension, coronary artery disease, myocarditis, atrial septal defect, ventricular septal defect, valvular heart disease because the right ventricle is damaged and dilated causing right bundle branch block; People with consequent lung disease leading to right bundle branch block. Lung diseases include: Chronic obstructive pulmonary disease, pulmonary embolism, right heart failure; Cardiac catheterization can cause right bundle branch block; In addition, senile sinus node failure or excessive hyperkalemia can also cause right bundle branch block.3. Symptoms of right bundle branch block
Signs of right bundle branch block often appear in people with only bundle branch block accompanied by cardiovascular and respiratory diseases. These symptoms include:Palpitations; Dizzy; Chest pain, heaviness in the chest; Shortness of breath, easy fatigue when exercising.
Đau ngực, khó thở là biểu hiện điển hình của block nhánh phải ở tim
Incomplete right bundle branch block, often without clinical symptoms
4. Treatment of right bundle branch block
Depending on the accompanying diseases and clinical symptoms, there are different treatment and treatment attitudes. Treatments include:For young, healthy adults without cardiovascular or pulmonary disease, right bundle branch block is not considered a disease, as it rarely affects the pumping function of the heart due to the presence of heart disease. that does not require treatment. However, patients need to be examined periodically every 1-2 years and have an electrocardiogram (ECG) to monitor disease progression if right bundle branch block is detected. For people with heart disease or lung disease (chronic obstructive pulmonary disease). In case of incomplete right bundle branch block, the disease can easily progress to severe form (complete right bundle branch block). At that time, the treatment process should focus on treating those diseases because that is the cause of the disease. Some cases of severe right bundle branch block (such as sinus node syndrome, after myocardial infarction ...) cause bradycardia with a high risk of death, requiring permanent pacemaker placement.
Block nhánh phải nặng cần được đặt máy tạo nhịp vĩnh viễn
5. What to do when right branch block?
Cardiologist and echocardiogram to check for structural heart disease? (Atrial septal defect or ventricular septal defect...) Lifestyle changes such as: Quit smoking and lose weight if you are overweight , increase physical activity such as walking instead of taking the elevator, jogging, yoga, cycling,...; Eat heart-healthy foods such as dark green vegetables, fruits and vegetables because these foods contain a lot of fiber to help lower cholesterol, reduce blood fat and reduce the risk of heart disease; Avoid stress and stress: get enough sleep 6-8 hours a day, don't stay up too late after 11pm, keep your mind relaxed, avoid anxiety and stress; Avoid using stimulants such as coffee, tobacco, alcohol, strong tea because stimulants can cause more severe arrhythmias; Monitor disease symptoms regularly and re-examine as soon as there are signs of chest pain, shortness of breath, fainting or other abnormalities affecting health. Although right bundle branch block is not dangerous, if you have underlying cardiovascular or pulmonary disease it can cause sudden cardiac arrest so it is important to have regular check-ups and make healthy lifestyle changes.
Người bị Block nhánh phải cần phải khám tim mạch định kỳ thường xuyên
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