Arrhythmias & electrophysiology
Standardized Spark-Pattern Cut-Mode Electrosurgical Bailout Workflow for Difficult Left Bundle Branch Area Pacing Lead Advancement: Procedural and Follow-Up Outcomes From a 15-Patient Case Series
Authors' conclusion
A standardized spark-pattern cut-mode bailout workflow provides a reproducible framework for difficult left bundle branch area pacing lead deployment. Progression markers should be distinguished from procedural success, and follow-up surveillance remains essential. Larger studies with longer follow-up and dedicated lead-integrity testing are required before general adoption.
Study context
- Population
- Patients undergoing standardized spark-pattern cut-mode electrosurgical bailout after conventional mechanical left bundle branch area pacing lead advancement failed
- Participants
- 15 consecutive patients
Methodological detailsretrospective, consecutive patients
- Retrospective
- Consecutive patients
Main finding
As reported in the abstract
Spark-pattern cut-mode electrosurgical bailout
15/15
events
Observational data: associations, not effects.
Further findings
| Outcome | Values |
|---|---|
| Progression markers | Spark-pattern cut-mode electrosurgical bailout V1 terminal rightward progression 14/15 · jump 14/15 · split/discrete components 12/15 |
Spark-pattern cut-mode assistance activation
- Target-site advancement attempts
- 50
- Final target sites with activation
- 15
- Cycles per patient
- 1.5±0.6
- Conventional advancement failed in all included patients
Follow-up
- Mean follow-up
- 400±170 days
Safety
| Outcome | Values |
|---|---|
| Spark-associated premature ventricular complexes | Spark-pattern cut-mode electrosurgical bailout 15/15 events |
Spark-associated premature ventricular complexes
- Isolated and self-limited; no nonsustained ventricular tachycardia, sustained ventricular tachycardia, polymorphic ventricular tachycardia/ventricular fibrillation, defibrillation, or hemodynamic instability during the standardized workflow
Lead and structural complications during follow-up · Mean follow-up 400±170 days
- No clinically documented lead malfunction, dislodgement, microdislodgement, loss requiring revision, septal perforation, ventricular septal defect, pericardial effusion, or reintervention
Original publication
Summarised from the published abstract; every number is checked against it