2022年9月13日 · Atrioventricular canal defect allows extra blood to flow to the lungs. The extra blood forces the heart to work too hard, causing the heart muscle to grow larger. Untreated, atrioventricular canal defect can cause heart failure and high blood pressure in the lungs.

Atrioventricular block is a heart rhythm disorder that causes the heart to beat more slowly than it should. It’s caused by communication problems within the heart’s electrical conduction system. For some people, the condition doesn’t cause symptoms; for others, it may be life-threatening.

2024年10月21日 · What is an atrioventricular canal defect? An atrioventricular (AV) canal defect is a congenital (present at birth) heart condition. It describes a group of several heart issues, including a hole in the wall (septum) at the center of your heart and problems with the way your heart’s valves work.

An atrioventricular (AV) canal defect is a problem in the part of the heart that connects the upper chambers (atria) to the lower chambers (ventricles). There are two types of atrioventricular canal defects: complete and partial.

2022年9月13日 · Tests to diagnose atrioventricular canal defect may include: Pulse oximetry. A sensor placed on the fingertip records the amount of oxygen in the blood. Too little oxygen may be a sign of a heart or lung problem. Electrocardiogram. Also called an ECG or EKG, this noninvasive test records the electrical activity of the heart.

2023年10月30日 · The atrioventricular node (also known as the AV node) is a collection of specialized cardiac muscle cells, which are bundled together to form a node within the wall of the interatrial septum.

2024年7月24日 · Atrioventricular (AV) canal defects are a group of congenital cardiac defects involving the AV septum and AV valves (ie, mitral and tricuspid valves) (figure 1). They are also referred to as AV septal defects, endocardial cushion defects, or persistent AV ostium.

Atrioventricular block is the most common indication of pacemaker implantation worldwide. Untreated patients diagnosed with third-degree AV block face a 5-year survival rate as low as 37%. Asymptomatic patients with an AV block have a …