What is the antiarrhythmic for WPW?
Procainamide, a class 1A antiarrhythmic, increases effective refractory period and reduces impulse conduction velocity and excitability in the atria, His-Purkinje fibers, ventricular muscle, and the AP of the heart.
Can adenosine be given in WPW?
Adenosine slows or blocks antegrade (atrial to ventricular) conduction through the AV node but doesn’t affect accessory or bypass tracts like those seen in WPW syndrome. Because of this, adenosine can be dangerous when given to patients with atrial fibrillation, especially if they have a bypass track.
Does WPW cause SVT?
If you have WPW syndrome, you may experience episodes where your heart suddenly starts racing, before stopping or slowing down abruptly. This rapid heart rate is called supraventricular tachycardia (SVT). During an episode, you may experience symptoms such as: a pounding or fluttering heartbeat (heart palpitations)
How is WPW different from SVT?
What is SVT? Supraventricular tachycardia (SVT) refers to a group of abnormal fast heart rhythms that arise because of a problem involving the upper chambers of the heart. WPW is short for Wolf-Parkinson White syndrome which is a special form of SVT.
Is WPW a SVT?
The type of fast heart rate that occurs is called supraventricular tachycardia (SVT). So, WPW is a sub-group of patients with SVT. Pre-excitation is a finding on the resting electrocardiogram (ECG) that is specific to WPW.
Why does WPW cause SVT?
In WPW syndrome, there’s an extra electrical connection in the heart, which allows electrical signals to bypass the usual route and form a short circuit. This means the signals travel round and round in a loop, causing episodes where the heart beats very fast.
Is SVT same as WPW?
Supraventricular tachycardia (SVT) refers to a group of abnormal fast heart rhythms that arise because of a problem involving the upper chambers of the heart. WPW is short for Wolf-Parkinson White syndrome which is a special form of SVT.
Can WPW lead to SVT?
Wolff-Parkinson-White Syndrome (WPW) is a congenital disorder in which the patient is born with an extra electrical connection between the top and bottom chambers of the heart. This can lead to supraventricular tachycardia, atrial fibrillation or even sudden cardiac death.
How does WPW cause SVT?
A single extra beat arising from anywhere in the heart may result in electrical conduction through this extra pathway. The electrical signal then gets caught up in a short circuit involving the pathway and the AV node, resulting in an abnormally fast heart rhythm accompanied by palpitations.