2010年10月12日 · Some people are born with an extra piece of heart muscle tissue that connects directly between the atria and the ventricles, bypassing the AV node altogether. This abnormal piece of muscle is referred to as a bypass tract or an accessory pathway (Figure 2).

In cardiology, an accessory pathway is an additional electrical connection between two parts of the heart. [1] These pathways can lead to abnormal heart rhythms (arrhythmias) associated with symptoms of palpitations.

2023年12月13日 · Some people with an extra electrical pathway don't have symptoms of a fast heartbeat. This condition is called Wolff-Parkinson-White (WPW) pattern. It's often discovered by chance during a heart test.

2024年10月8日 · This page covers the pathophysiology and ECG features of pre-excitation syndromes in sinus rhythm. The two main forms of tachyarrhythmias that occur due to accessory pathways are discussed separately — see atrioventricular re-entry tachycardia (AVRT) and atrial fibrillation/flutter in pre-excitation.

2021年12月22日 · Catheter ablation is a Class I indication therapy for patients with symptomatic supraventricular tachycardia due to atrioventricular re-entry utilising an accessory pathway (AP). The success rate of this approach is greater than 95% with a low risk of complications [1].

2024年5月15日 · People with WPW syndrome have an extra electrical pathway between the atria and the ventricles, known as an "accessory pathway." This abnormal pathway directly connects the atria and ventricles at a site other than the AV node.

Our results suggest that right-sided accessory pathways, especially septal accessory pathways, may impair LV function, manifested as elevated BNP levels and decreased LVEF.

2008年3月25日 · By definition, accessory atrioventricular pathways are aberrant muscle bundles that connect the atrium to a ventricle outside of the regular atrioventricular conduction system. Clinically, they may manifest as substrates for ventricular preexcitation.

2023年8月7日 · Wolff-Parkinson-White (WPW) syndrome is a congenital cardiac preexcitation syndrome that arises from abnormal cardiac electrical conduction through an accessory pathway that can result in symptomatic and life-threatening arrhythmias.

Accessory pathways are microscopic muscular bundles that connect the atrium and ventricle, providing a “bypass” of the normal conduction system (Tables 20-1 and 20-2). Manifest pathways (capable of antegrade conduction) are present in the Wolff-Parkinson-White (WPW) syndrome.