Wolff-Parkinson-White (WPW) syndrome was described as a clinical entity in 1930 by the individuals whose name it bears.[1] It had been postulated the genesis of the WPW syndrome was due to an accessory pathway bypassing the AV node from the atria to the ventricle. This was subsequently confirmed by electrical cardiac mapping and this technique is now used routinely to identify and ablate the accessory pathway.[2] Wolff-Parkinson-White syndrome is the second most common cause of paroxysmal supraventricular tachycardia in the western world, and in Asian countries such as China it is the number one cause.[3] It became a model for reentry tachycardia. Thus WPW has become the intrigue of the electrophysiologist both as a mechanism for tachycardias as well as a disease that has a specific treatment.

Getting Started With Dumbbells

Getting Started With Dumbbells

The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.

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