Is intraventricular conduction block serious?
Ventricular conduction blocks (VCBs) are associated with poor outcomes in patients with known cardiac diseases. However, the prognostic implications of VCB patterns in dilated cardiomyopathy (DCM) patients need to be evaluated.
How is intraventricular conduction delay treated?
Cardiac resynchronization therapy (CRT) is an electrical treatment of heart failure with reduced ejection fraction and wide QRS. It aims to correct the electrical dyssynchrony present in 30% to 50% of patients in this population. Dyssynchrony results in widening of the QRS complex on the electrocardiogram (ECG).
What is intraventricular conduction?
The term intraventricular conduction delay or intraventricular conduction disturbances (IVCDs) refers to disturbances in the intraventricular propagation of supraventricular impulses resulting in changes in the QRS complex either in morphology or duration, or both.
What causes intraventricular block?
Causes of a right bundle branch block include: – congenital heart disease; – myocardial infarction; – pulmonary heart disease; – drugs and electrolyte imbalances.
What causes conduction delay in the heart?
Certain medicines can cause conduction disorders, as can conditions such as ischemic heart disease or heart attack, or your genetics. Your doctor may be able to diagnose a conduction disorder with an electrocardiogram (EKG), which is a reading of your heart’s electrical activity.
What is a conduction disorder?
A conduction disorder is a problem with the electrical system that makes your heart beat and controls its rate and rhythm. This system is called the cardiac conduction system. Normally, the electrical signal that makes your heart beat travels from the top of your heart to the bottom.
What causes Wenckebach phenomenon?
Wenckebach, also known as Mobitz type 1 second degree heart block, is caused by a conduction block at the level of the AV node. It is usually reversible and there are many causes, including drugs which slow conduction through the AV node such as amiodarone, calcium channel blockers and digoxin [1].