Percutaneous Ablation and Retrieval of a Right Atrial Myxoma

The Simplified Extraction of Atrial Tumor With Targeted Loop Electricity (SEATTLE) Procedure

“…Until now, there have been few alternatives to surgical removal or watchful waiting. Konecny et al 5 reported on their approach to transcatheter removal of a right atrial myxoma in 2014 using radiofrequency ablation and mass extraction with a gooseneck snare retracted through a large sheath. This technique required multiple ablative attempts, resulting in disruption of the mass and fragment embolization.…”

Percutaneous Removal of Left Atrial Myxoma

“…Steinberg et al 5 described the SEATTLE technique to remove a right atrial myxoma using a basket device and a snare. Konecny et al 6 also pioneered a technique to remove a right-sided cardiac myxoma using a radiofrequency ablation catheter.…”

“…It is also possible to mitigate the risk of myxoma recurrence by radiofrequency ablation of the stalk after removal of the myxoma, as has been previously done. 6 …”

Medical and Surgical Management of Carney Complex

“…A percutaneous approach was recently described by Konecny et al This involves exposure of the right femoral vein for insertion of the ablation cathether, retrieval snare device, and imaging probe; left femoral vein for embolic protection device insertion; and right femoral artery exposure for hemodynamic monitoring. Ablation of the base of the myxoma is performed followed by snaring with the retrieval device . Only one case is documented explaining this procedure; further investigations comparing the outcomes with surgery are required.­­­­­­­ Left ventricular myxomas are commonly resected either via a left atriotomy followed by passage through the mitral valve, or a left ventriculotomy typically performed at the apex .…”

“…Ablation of the base of the myxoma is performed followed by snaring with the retrieval device. 69 Only one case is documented explaining this procedure; further investigations comparing the outcomes with surgery are required. Left ventricular myxomas are commonly resected either via a left atriotomy followed by passage through the mitral valve, or a left ventriculotomy typically performed at the apex.…”