29 March 2026
: Case report 
Thermal Injury Leading to Myocardial Perforation During Cavotricuspid Isthmus Ablation: A Case Report
Challenging differential diagnosis, Unusual or unexpected effect of treatment, Diagnostic / therapeutic accidents, Educational Purpose (only if useful for a systematic review or synthesis), Rare coexistence of disease or pathology
Kohei Sawasaki ABCDEFG 1*, Natsuko Hosoya BD 1, Masahiro Mutoh ACD 1DOI: 10.12659/AJCR.951012
Am J Case Rep 2026; 27:e951012
Figure 1 Fluoroscopic views of cavo-tricuspid isthmus ablationFluoroscopic images obtained during the fourth radiofrequency application in the right anterior oblique (RAO 30°) and left anterior oblique (LAO 50°) projections. Diagnostic catheters were positioned in the coronary sinus and across the tricuspid valve annulus. Radiofrequency ablation was performed at the cavo-tricuspid isthmus (CTI) using a non-irrigated IntellaTip MIFI XP™ catheter (Boston Scientific, Marlborough, MA, USA) introduced through a Swartz™ SL0 sheath (Abbott, Abbott Park, IL, USA) under fluoroscopic guidance alone. An esophageal temperature probe is also visible. A) Ablation catheter positioned at the cavo-tricuspid isthmus. B) Coronary sinus catheter. C) Diagnostic catheter across the tricuspid annulus. D) Esophageal temperature probe.