Sinus node modification using radiofrequency current in a patient with persistent inappropriate sinus tachycardia.
Radiofrequency catheter modification of the sinus node for persistent inappropriate sinus tachycardia has not been previously reported. This article describes a patient in whom radiofrequency current was used to ablate an incessant automatic tachycardia focus mapped to the region of the sinus node, where a discrete multicomponent electrogram demonstrating earliest atrial activation was recorded. A transient junctional rhythm developed immediately after ablation, with rapid subsequent emergence of a stable rhythm having normal sinus nodal characteristics.
Waspe
L E
LE
Division of Cardiology of Gould/Sutter Medical Foundation, Modesto, CA 95355.
Chien
W W
WW
Merillat
J C
JC
Stark
S I
SI
D000328:Adult; D018780:Body Surface Potential Mapping; D017115:Catheter Ablation; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D012849:Sinoatrial Node / Q000601:surgery*; D013616:Tachycardia, Sinus / Q000503:physiopathology / Q000601:surgery*