Wpw. Congenital abnormality with some genetic history thought to be possible in some families.
In general. No but arrhythmia can run in some families...Majority not inherited.
No. There is a very rare form of familial wpw.
Palpitations. Usually the first sign other than being picked up on an EKG by accident, is in a person who develops a fast heart rate (an arrhythmia classified as supraventricular tachycardia). On occasion, the fast heart rate can lead to passing out (syncopal) episodes, so that will be the presenting symptom.
Palpitations, usually. Wpw occurs when a patient is born with an extra piece of wiring which connects the upper and lower heart chambers. Only 50% of patients with WPW every develop symptoms which typically are palpitations. Many of these patients can have their symptoms controlled with medications or cured by a non-surgical procedure known as ablation.
No. Wolf parkinson white syndrome, aka pre-excitation due to the presence of an accessory pathway would not cause pvc's. Abnormal conduction of atrial impulses through the accessory pathway will lead to fast heart rates at times, this can become life threatening especially in the setting of atrial fibrillation with an inappropriately high rate of conduction leading to ventricular fibrillation.
No. Wpw is, by definition, an abnormal accessory conduction tract from the atria to the ventricles. Thus arrhythmia related to WPW is an atrial arrhythmia. That said, very fast rhythm in the ventricles may conduct with aberration and mimic ventricular tachycardia. But not pvcs.