As the Director of Cardiac Electrophysiology Laboratory at Northwestern Memorial Hospital, Dr. Chicos has a busy clinical practice with a broad range of clinical and research interests in the field of Heart Rhythm Disorders. His interests include prevention of sudden death; cardiac resynchronization; catheter ablation for complex arrhythmias, including ventricular tachycardia, post-maze atrial flutter and atrial fibrillation; cryoballoon ablation for atrial fibrillation; epicardial ablation of ventricular tachycardia; and screening, diagnosis and prevention of sudden death in patients with cardiac sarcoidosis. He is an active member of the Heart Rhythm Society, and he has been and continues to be active in research in multiple areas, including multicenter clinical trials and the multicenter cardiac sarcoidosis registry. His goal is to provide the best advice and the most appropriate and effective treatment, while placing the patient's unique medical situation and needs first.