Why the study?
Does radiofrequency catheter ablation of the left bundle branch eliminate inducibility of tachycardia in a patient with sustained bundle branch reentrant VT?
Does radiofrequency catheter ablation of the left bundle branch eliminate inducibility of tachycardia in a patient with sustained bundle branch reentrant VT?
Radiofrequency catheter ablation of the left bundle branch can successfully eliminate bundle branch reentry VT while maintaining anterograde conduction, avoiding the need for a permanent pacemaker.
Answers are grounded in this paper and cite their sources.
May support LBB ablation to eliminate bundle branch reentry VT without pacing; leaves open generalizability beyond this single case.
Sustained Bundle Branch Reentrant VT. Radiofrequency catheter ablation of the left bundle branch (LBB) was attempted in a patient with sustained bundle branch reentry. During sinus rhythm, the QRS had a complete LBB block pattern, and the LBB was activated retrogradely (transseptal). Ablation of the LBB eliminated inducibility of the tachycardia, while the QRS complex and the duration of the HV interval (70 msec) remained unchanged. Successful ablation of the LBB eliminated bundle branch reentry and yet maintained the anterograde conduction properties of the His-Purkinje system, obviating implantation of a permanent pacemaker.
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Blanck et al. (1995) studied this question.
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