Direct Rapid Left Ventricular Wire Pacing during Balloon Aortic Valvuloplasty

Area of Science:

• Interventional Cardiology
• Cardiac Pacing Techniques
• Structural Heart Interventions

Background:

• Rapid ventricular pacing is crucial for balloon positioning during aortic valvuloplasty (BAV).
• Current methods involve temporary pacemaker (PM) placement in the right ventricle.
• Assessing alternative pacing strategies is important for improving BAV procedures.

Purpose of the Study:

• To compare the safety and efficacy of direct left ventricular (LV) guidewire pacing versus traditional right ventricular PM placement for BAV.
• To evaluate procedural outcomes and complication rates associated with each pacing method.

Main Methods:

• A prospective study comparing direct LV guidewire pacing with temporary right ventricular PM placement in 202 patients undergoing BAV.
• Pacing was achieved using a 0.035″ guidewire for LV pacing.
• Clinical, echocardiographic, and procedural data, including complication rates, were analyzed.

Main Results:

• The pacing success rate was 100% for both methods.
• Direct LV guidewire pacing resulted in significantly lower radiation dose, shorter fluoroscopy, and overall procedural times.
• Complication rates, including cardiac tamponade, vascular access complications, blood transfusions, and in-hospital mortality, were significantly lower with LV guidewire pacing.

Conclusions:

• Direct rapid LV guidewire pacing is a safe, simple, and effective alternative for BAV.
• This technique is associated with a reduced complication rate compared to temporary right ventricular PM placement.
• LV guidewire pacing offers potential advantages in terms of procedural efficiency and patient safety.