LINEAR II - LME-159 Evaluation of a Multi-Electrode Linear Type Ablation Catheter

Inclusion Criteria: * At least one symptomatic episode of typical CTI dependent right atrial flutter documented by 12 lead ECG, Holter monitor, transtelephonic event monitor, telemetry strip, or implanted device. * Age 18 years or older. Exclusion Criteria: * Previous typical CTI dependent right atrial flutter ablation * Uncontrolled heart failure or NYHA function class IV * MI within the past 2 months * Any cardiac surgery (i.e. CABG) within the past 2 months * Subjects that have ever undergone valvular cardiac surgical procedure (ie, ventriculotomy, atriotomy, and valve repair or replacement and presence of a prosthetic valve) * Awaiting cardiac transplantation or other cardiac surgery within the next 6 months * Documented thromboembolic event (including TIA) within the past 12 months * Significant congenital anomaly or medical problem that in the opinion of the investigator would preclude enrollment in this study * Active illness or active systemic infection or sepsis * Unstable angina * History of blood clotting or bleeding abnormalities * Contraindication to anticoagulation (eg, heparin or warfarin) * Life expectancy less than 6 months * Presence of intracardiac thrombus, myxoma, interatrial baffle or patch, tumor or other abnormality that precludes catheter introduction or manipulation * Presence of a condition that precludes vascular access * Women of child bearing potential whom are pregnant, lactating, or planning to become pregnant during the course of the clinical investigation * Currently enrolled in another device, biologics, or drug study * Contraindication for use of the investigational catheter, as indicated in the respective Instructions For Use