Case 2:
A 47 y-old man was referred to our clinic who suffering from recurrent tachycardia and dyspnea, with known history of WPW.
He had history of dyspnea and palpitation at first presentation, so ECG was performed, WPW was diagnosed. He went under EP study 7 years ago, and Ap was ablated.
he had been using cigarette (1packs/year). He denied any prescription, over-the-counter medications, supplements, or herbal remedies.
An electrocardiogram (EKG) was ordered and delta wave was seen again;
The polarity of the delta waves was positive in lead I, all inferior and precordial leads with an R/S > 1 in V1, and negative polarity in AVL lead which suggested an anterolateral AP (Fig-8).