We used a single transseptal sheath. Mapping was performed in AF. For patients in sinus rhythm (SR), AF was induced by rapid atrial pacing using the coronary sinus (CS) catheter (from 500 to 180 ms). When AF was not inducible, isoproterenol (baseline dose: 2.4 mg/h, increased in 0.2 mg increments to reach a sinus rate > 100 beats/min) was infused. Baseline mapping in both atria was performed during AF with the PentaRay multispline catheter (Biosense Webster, Diamond Bar, CA, USA, 2-6-2 mm spacing) sequentially positioned in various regions of the RA and LA. At each location, the catheter was maintained in a stable position for a minimum of 2.5 s. As previously described [3 (link)], the operator conducted a mapping of dispersion regions. Briefly, dispersion corresponded to clusters of electrograms (EGMs), either fractionated or non-fractionated, that displayed interelectrode time and space dispersion at a minimum of three adjacent bipoles such that activation spread over all the AFCL. Dispersion regions were manually tagged on the 3D CARTO navigation system.
Pentaray multispline catheter
Manufactured by Johnson & Johnson
Sourced in United States
The PentaRay multispline catheter is a medical device designed for electrophysiology procedures. It features a multi-electrode array that can be used to map electrical activity within the heart.
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Lab products found in correlation
2 protocols using pentaray multispline catheter
1
Mapping Atrial Fibrillation Dispersion Regions
2
Catheter Ablation Procedure for Atrial Fibrillation
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A decapolar mapping catheter (Biosense Webster, Diamond Bar, CA, USA) was positioned in the coronary sinus (CS) via left femoral vein. Two SL1-type Swartz sheaths (St. Jude Medical, St. Paul, MN, USA) were advanced into the left atrium after two successful transseptal punctures. After transseptal catheterization, systemic anticoagulation was achieved with intravenous heparin (100 IU/kg) to maintain an activated clotting time between 300 and 350 s. Selective PV venography was performed to identify all PV ostia prior to ablation. PentaRay multispline catheter (Biosense Webster, Diamond Bar, CA, USA) was used as a navigational catheter.
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