Rapid Pacing Using the Left Ventricular Guidewire: Reviving an Old Technique to Simplify BAV and TAVI Procedures

Objectives: We sought to demonstrate the safety and efficacy of rapid left ventricular (LV) pacing through the guidewire during balloon aortic valvuloplasty (BAV) and Transaortic valve implantation (TAVI). Background: Right ventricular temporary pacing during TAVI and BAV is time-consuming and associated with vascular and pericardial complications. Methods: Rapid left ventricular pacing was provided via the back-up 0.03500" guidewire. The cathode of an external pacemaker was placed on the tip of the 0.03500" wire and the anode on a needle inserted into the groin. Insulation was ensured by the balloon or TAVI catheter. Results: 38 BAV and 87 TAVI procedures were performed in 113 consecutive patients in three centers with one for one pacing (160-200 bpm) in all patients. A significant reduction in blood pressure was achieved with a mean systolic pressure of 44 mm Hg during stimulation. Mean procedural time was 49.7 +/- 31 min for BAV and 68.7 +/- 30.9 for TAVI. A temporary venous pacemaker was required in 12 patients; only 12% of TAVI patients had a femoral central venous catheter. Femoral venous puncture was not performed in BAV patients. No venous vascular complications were observed. One case of successfully treated tamponade (0.8%) occurred 8 hr post procedure. In-hospital mortality rates were 4.6% and 2.6% in the TAVI and BAV groups, respectively. Conclusions: Use of the LV guidewire for rapid pacing during BAV and TAVI was shown to be simple, reproducible, and prevented complications associated with RV temporary leads thus potentially simplifying TAVI and enhancing its safety. (C) 2016 Wiley Periodicals, Inc.