InhaltsangabeFocal Atrial Arrythmias.- Electroanatomic Mapping in Evaluation of Complex Atrial Arrhythmias.- Focal Atrial Arrhythmias.- Focal Atrial Tachycardia in the Right Atrium in a Postsurgical Patient: Rare but Possible.- Focal Atrial Tachycardia in an Enlarged Right Antrium after Rastelli's Operation: Ambiguous Mapping Data in Confict with the Orthodoxies.- Focal Atrial Tachycardia Associated with a Macroreentrant Tachycardia: Two Arrhythmias with Different Mechanisms and Similar Morphologies in a Non-surgical Left Atrium with Electrically Silent Areas.- Focal Atrial Tachycardia From the Right Superior Pulmonary Vein with Irregular Cycle and P Wave Morphology: the Missing Link in the Chain Connecting Organized and Disorganized Atrial Arrhythmias?.- Focal Atrial Tachycardia from the Right Superior Pulmonary Vein with Stable P Wave Morphology and Cycle Length: the Problem of Discriminating between a Right and Left Origin.- Macroreentrant Atrial Tachycardia/Flutter.- Counter-clockwise Atrial Flutter in the Donor's Right Atrium After Heart Transplantation: a Peculiar Example of Single-Loop Right Atrial Reentry.- Single-loop Macroreentry in the Left Atrium in an "Atrial Cardiomyopathy": Discrimination between Right and Left Circuits and the Paradox of Proximal-to-distal Coronary Sinus Activation in a Left-sided Arrhythmia.- Double-loop Reentry in the Right Atrium with a Shared Mid-Diastolic Isthmus in a Postsurgical Patient: Identifying and Targeting the Shared Isthmus.- Double-loop Reentry in the Left Atrium with a Shared Mid-Diastolic Isthmus in a Non-surgical Patient with Left Atrial Scarring: a More Common than Expected Arrhythmia?.- Macroreentrant Atrial Tachycardia in a Left Atrium With a Prosthetic Mitral Valve (Example 1): a Reentrant Circuit Confined to the Left Atrial Roof and the Need for Reconstruction of the Entire Reentrant Circuit.- Macroreentrant Atrial Tachycardia in a Left Atrium With a Prosthetic Mitral Valve (Example 2): the Problem of Minimal Amplitude Potentials.- Counter-clockwise Isthmus-Dependent Peritricuspid Reentry with an Atypical Electrocardiographic Pattern: what Should Be Complex is not Always Actually Complex.- Recurrence of Typical Counter-clockwise Atrial Flutter in a Postsurgical Patient: an Unexpected Trap.- Two Macroreentrant Tachycardias in a Patient after Fontan Surgery: the Difference between "Isthmic" and "Rotational" Atrial Macroreentry.- Organised Atrial Arrhythmias after Atrial Fibrillation Ablation in the Left Atrium (Example 1): an Arrhythmogenic Incomplete Linear Lesion with Modified Left-to-right Atrial Propagation.- Organised Atrial Arrhythmias after Atrial Fibrillation Ablation in the Left Atrium (Example 2): Association of Multiple Potentially Pro-arrhythmogenic Factors Resulting in a Tachycardia with a Longer Cycle Length.- Organised Atrial Arrhythmias after Atrial Fibrillation Ablation in the Left Atrium (Example 3): do Lesions in the Left Atrium Have a Mid-term Evolution?.- A Non-clinical Macroreentrant Right Atrial Tachycardia with Two Independent Loops: the Exception to the Rule of a Shared Mid-diastolic Isthmus in Double-loop Reentry.- A Peculiar Clockwise Peritricuspid Atrial Flutter: the Exception to the Rule of Aiming at the Mid-diastolic Isthmus.- Atrial Ablation Based on Substrate Mapping in Sinus Rhythm.- Non-inducible Atrial Flutter in a Patient with Prior Surgery for Congenital Heart Disease (Example 1): Ablation Based on Substrate Mapping in Sinus Rhythm.- Non-inducible Atrial Flutter in a Patient with Prior Surgery for Congenital Heart Disease (Example 2): Substrate Mapping in Sinus Rhythm with the Help of Imaging Integration.- Peculiar Anatomies.- Isolated Congenital Unilateral Absence of the Right Pulmonary Artery and Left Atrial Flutter: Are they Related?.- Left Atrial Ablation of Atrial Fibrillation in a Patient with Dextrocardia: the Complexities of an Inverted Anatomy.- Uncommon Anatomy of the Pulmonary Veins (Example 1): Common Trunk of the Inferior Pulmonary Vein