Right Ventricular Conduction Delay Meaning, Symptoms, Causes, Treatment
Right ventricular conduction delay means late blood pumping from the right ventricle of the heart. It is characterized as a long QRS complex I.e. more than 0.12 seconds. A single tissue of any branch of the bundle of His is involved in delayed conduction. There are three main conditions associated with conduction block which are left bundle branch block, right bundle branch block, and intraventricular conduction delay. In the case of right ventricular conduction delay, the right bundle branch block is responsible. The bundle branch block may be complete or incomplete.
Due to the right bundle branch block, the conduction of blood towards the right bundle of His is reduced and slow. When depolarization occurs in the right ventricle, the left one is halfway finished and electrical activity is lost. The QRS interval of the right ventricle is marked positive. Right bundle branch block is considered the most common cause behind right ventricular conduction delay. When we compare complete and incomplete right bundle branch blocks, the duration of QRS varies. In the complete right bundle branch block, the QRS interval is above 120 ms in adults and above 100 ms in children. In the case of incomplete right bundle branch block, the QRS interval is between 110 and 120 ms in adults and between 90 and 100 ms in children.
Right ventricular conduction delay shows symptoms that resemble symptoms of other heart diseases. Patients suffering from chest pain. Pain may become severe with time due to improper functioning of the heart. Patients may become faint due to low blood pressure. Palpitations occur. Patients face difficulties in breathing air like shortness of breath with slow exertion. Sometimes rapid breathing occurs due to insufficient conduction of blood and insufficient cellular oxygen supply. Patients may feel nausea and muscle fatigue due to decreased blood supply and cellular oxygen supply.
Right bundle branch block is considered the most common cause of right ventricular conduction delay in healthy individuals. It is responsible for delayed right ventricular depolarization. There may be many reasons behind the right bundle branch block. Some of them are atrial septal defect, rheumatic heart disease, right ventricular hypertrophy i.e. increase in the size of the ventricle, myocarditis, pulmonary embolism I.e. moveable blockage in the pulmonary artery or vein, hypertension or cardiomyopathy, and Brugada syndrome. Brugada syndrome is defined as prolonged or elevated ST interval due to ventricular fibrillation. These are all possible reasons which can cause
right ventricular conduction delay.
Right ventricular conduction delay can be treated via following the treatment strategy of the underlying cause. Treating the right bundle branch block will help a lot in treating right ventricular conduction delay. Medications are prescribed to control blood pressure. These medications will also reduce the chances of heart failure. Coronary angioplasty is performed in severe cases to open up the pulmonary artery supplying blood to the ventricle. In some cases, a pacemaker is attached to the normal functioning of the heart. Cardiac resynchronization is another treatment option that closely resembles pacemaker but has an additional wire attached with the left side of the heart.
Due to the right bundle branch block, the conduction of blood towards the right bundle of His is reduced and slow. When depolarization occurs in the right ventricle, the left one is halfway finished and electrical activity is lost. The QRS interval of the right ventricle is marked positive. Right bundle branch block is considered the most common cause behind right ventricular conduction delay. When we compare complete and incomplete right bundle branch blocks, the duration of QRS varies. In the complete right bundle branch block, the QRS interval is above 120 ms in adults and above 100 ms in children. In the case of incomplete right bundle branch block, the QRS interval is between 110 and 120 ms in adults and between 90 and 100 ms in children.
Right ventricular conduction delay symptoms
Right ventricular conduction delay shows symptoms that resemble symptoms of other heart diseases. Patients suffering from chest pain. Pain may become severe with time due to improper functioning of the heart. Patients may become faint due to low blood pressure. Palpitations occur. Patients face difficulties in breathing air like shortness of breath with slow exertion. Sometimes rapid breathing occurs due to insufficient conduction of blood and insufficient cellular oxygen supply. Patients may feel nausea and muscle fatigue due to decreased blood supply and cellular oxygen supply.
Right ventricular conduction delay causes
Right bundle branch block is considered the most common cause of right ventricular conduction delay in healthy individuals. It is responsible for delayed right ventricular depolarization. There may be many reasons behind the right bundle branch block. Some of them are atrial septal defect, rheumatic heart disease, right ventricular hypertrophy i.e. increase in the size of the ventricle, myocarditis, pulmonary embolism I.e. moveable blockage in the pulmonary artery or vein, hypertension or cardiomyopathy, and Brugada syndrome. Brugada syndrome is defined as prolonged or elevated ST interval due to ventricular fibrillation. These are all possible reasons which can cause
right ventricular conduction delay.
Right ventricular conduction delay treatment
Right ventricular conduction delay can be treated via following the treatment strategy of the underlying cause. Treating the right bundle branch block will help a lot in treating right ventricular conduction delay. Medications are prescribed to control blood pressure. These medications will also reduce the chances of heart failure. Coronary angioplasty is performed in severe cases to open up the pulmonary artery supplying blood to the ventricle. In some cases, a pacemaker is attached to the normal functioning of the heart. Cardiac resynchronization is another treatment option that closely resembles pacemaker but has an additional wire attached with the left side of the heart.
Right Ventricular Conduction Delay Meaning, Symptoms, Causes, Treatment
Reviewed by Simon Albert
on
May 08, 2019
Rating:
Reviewed by Simon Albert
on
May 08, 2019
Rating:
