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Endocardial Solutions, Inc. designs, develops, and manufactures a minimally invasive diagnostic system that diagnoses, within the span of a few heartbeats, arrhythmias, potentially fatal or life debilitating heart rhythms. ESI believes that its proprietary  ® Catheter and   3000® Electrophysiology Workstation (together, the "  3000® System") is a powerful new diagnostic tool that will enable electrophysiologists to rapidly and comprehensively map arrhythmias and improve selection of patient treatment options.

Arrhythmias are caused by irregular electrical activity in the heart which disrupts the heart's normal pumping action. Supraventricular tachycardia ("SVT"), including atrial fibrillation and flutter, originates in the upper chambers of the heart and often results in chest pain, fatigue and dizziness and, while generally not life-threatening, are a leading cause of stroke in the United States.

It is estimated that in the United States approximately three million suffer from some form of SVT. The Company estimates that a majority of these SVT patients suffer from complex forms of tachycardia that have multiple points of origin in unpredictable locations in the heart ("complex arrhythmias"). To date, electrophysiologists have generally been unable to adequately diagnose complex tachycardia due to the limited capabilities of present technology. Currently available single-point contact catheters require time-consuming and tedious procedures that generally produce an insufficient amount of data to effectively locate, diagnose and optimally treat complex tachycardia.

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