A New Dimension in ultra-HD Mapping & Ablation
DIRECTSENSE Technology leverages Boston Scientific's proprietary MIFI electrode design to capture and present an unique local impedance measurement from a local electric field generated at the tip of the ablation catheter.
What Local Impedance brings to Electrophysiology
EHRA - Acute Data
Local Impedance drop was predictive of ACUTE PVI segment conduction block in patients with paroxysmal AF
Das et al. published “Local catheter impedance drop during pulmonary vein isolation predicts conduction block in patients with paroxysmal atrial fibrillation” and concluded that reaching a LI drop of ≥16Ω in anterior/superior segments and ≥12Ω in posterior/inferior segments was highly predictive of acute segment block in de-novo PVI
HRS #1 – Chronic Data
PV segments with durable and CHRONIC block had significantly larger local impedance drop compared to segments with late PV reconnections
García Bolao et al. complemented the acute data and concluded reaching a local impedance drop of ≥17Ω in anterior/superior and of ≥14Ω in posterior/inferior segments was highly predictive of chronic segment block in “Local Impedance Drop during Pulmonary Vein Isolation Predicts Late Reconnection in Patients with Paroxysmal Atrial Fibrillation”
HRS #2 – Chronic Data
Blood pool and pre-ablation local impedance had a significant impact on lesion formation
“Pre-ablation Local Impedance is Predictive of Lesion Formation in Patients with Paroxysmal Atrial Fibrillation” published by Das et al. demonstrated that blood pool and pre-ablation local impedance were predictive of acute lesion formation, as measured by local impedance drop; as well as prior to RF energy delivery, starting local impedance had a significant, strong, positive correlation to local impedance drop
Providing a New Dimension of Data in Cardiac Ablations
DIRECTSENSE Technology: the Power of Local Impedance
DIRECTSENSE makes ablation predictable.
Clínica Universidad de Navarra
Confidently Validate Endpoints
Want More Info?