CPT® Code 33266

Endoscopy, surgical; operative tissue ablation and reconstruction of atria, extensive (eg, maze procedure), without cardiopulmonary bypass

Endoscopic operative tissue ablation and reconstruction of the atria, specifically through the extensive maze procedure, is a surgical intervention aimed at addressing chronic atrial fibrillation. Atrial fibrillation is characterized by rapid and uncoordinated contractions of the atrial muscles, leading to an irregular and often rapid heartbeat. This procedure is particularly suitable for patients diagnosed with lone atrial fibrillation, meaning they do not have other underlying cardiac conditions. The extensive maze procedure, denoted by CPT® Code 33266, is performed without the use of cardiopulmonary bypass, allowing for a less invasive approach. Utilizing a robotic-assisted technique, the surgeon creates small puncture wounds in the chest to access the heart. Through these access points, abnormal electrical pathways within the atria are ablated, which helps to restore normal electrical conduction. Additionally, the procedure may involve the resection of the atrial appendage, further contributing to the correction of the fibrillation. The ultimate goal of this surgical intervention is to eliminate the fibrillation, thereby stabilizing the heart's rhythm and improving the patient's overall cardiac function.