<?xml version='1.0' encoding='UTF-8'?><xml><records><record><source-app name="HighWire" version="7.x">Drupal-HighWire</source-app><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Alrifai, Abdulah</style></author><author><style face="normal" font="default" size="100%">Kabach, Mohamad</style></author><author><style face="normal" font="default" size="100%">Nieves, Jonathan</style></author><author><style face="normal" font="default" size="100%">Chait, Robert</style></author></authors><secondary-authors></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Left Ventricular Aneurysm Presenting as Bidirectional Ventricular Tachycardia</style></title><secondary-title><style face="normal" font="default" size="100%">Ochsner Journal</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2018-09-21 00:00:00</style></date></pub-dates></dates><pages><style  face="normal" font="default" size="100%">288-290</style></pages><doi><style  face="normal" font="default" size="100%">10.31486/toj.18.0023</style></doi><volume><style face="normal" font="default" size="100%">18</style></volume><issue><style face="normal" font="default" size="100%">3</style></issue><abstract><style  face="normal" font="default" size="100%">Background: Bidirectional ventricular tachycardia is a rare form of ventricular arrhythmia, characterized by a changing of the mean QRS axis of 180 degrees. Digitalis toxicity is the most common cause of bidirectional ventricular tachycardia; other causes include myocarditis, aconite toxicity, metastatic cardiac tumor, myocardial infarction, and cardiac channelopathies.Case Report: A 73-year-old male with hypertension and a pacemaker implanted for sick sinus syndrome presented with a complaint of substernal chest pressure for several days. He also stated he had had an episode of near syncope. The patient's physical examination was unremarkable; however, electrocardiogram demonstrated sustained bidirectional ventricular tachycardia. Echocardiogram showed severe anterior wall hypokinesis and an estimated ejection fraction of 35%, as well as an apical ventricular aneurysm. Electrophysiology study showed that the apical ventricular aneurysm was the site of the bidirectional arrhythmia. The patient was successfully treated with ventricular tachycardia ablation.Conclusion: This case is a unique example of a patient with bidirectional ventricular tachycardia originating from an apical left ventricular aneurysm that was treated successfully by ablation.</style></abstract></record></records></xml>