CPT® Code 93529

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Combined right heart catheterization and left heart catheterization through existing septal opening (with or without retrograde left heart catheterization)

A combined right and left heart catheterization is a diagnostic procedure that involves the insertion of catheters into both the right and left sides of the heart through an existing septal opening. This procedure can be performed with or without the addition of retrograde left heart catheterization. The process begins with the cleansing of the skin over the catheter access site, which is typically located in the right femoral vein in the groin area. A small incision is made to access the vein, allowing for the insertion of a needle followed by a sheath. A guidewire is then threaded through the femoral vein, progressing through the external iliac vein, inferior vena cava, and into the right atrium. Once the catheter is positioned correctly within the right heart chambers, various measurements such as pressure and oxygen levels are taken, and the tricuspid and pulmonary valves are evaluated. The catheter is then advanced through the existing septal opening into the left heart, where the left atrium, mitral valve, left ventricle, and aortic valve are inspected, and additional pressures are recorded. If retrograde left heart catheterization is performed, a second catheter is introduced through an artery, allowing for further evaluation of the left heart structures. This comprehensive procedure is essential for assessing cardiac function and diagnosing various heart conditions.