Successful catheter ablation of typical atrial flutter in a patient with a long vertical and diverticulum-like cavotricuspid isthmus.
A long vertical vestibule with a diverticulum-like morphology of cavotricuspid isthmus (CTI) was demonstrated by right atrial angiogram in a 47-year-old male patient in whom his typical atrial flutter was difficult to be ablated. Compatible with the right atrial angiography, the diverticulum-like CTI with a long vertical vestibule, pouch-like recess, and a long transverse posterior component was also demonstrated on volume-rendering reconstruction computed tomography and the virtual endoscopy showed prominent trabeculation inside the diverticulum-like part of CTI. The bidirectional CTI conduction block was successfully achieved after ablating along the CTI guided by the right atrial angiography.
Tsai
Wei-Chung
WC
Department of Internal Medicine, College of Medicine, Kaohsiung Medical University, and Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Chu
Chih-Sheng
CS
Wu
Ding-Kwo
DK
Lai
Wen-Ter
WT
Lee
Kun-Tai
KT
D001282:Atrial Flutter / Q000150:complications* / Q000601:surgery*; D017115:Catheter Ablation / Q000379:methods*; D004240:Diverticulum / Q000150:complications* / Q000601:surgery*; D006349:Heart Valve Diseases / Q000150:complications* / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D014261:Tricuspid Valve