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EPstar Fixed Electrophysiology Catheters

EPstar Fixed Electrophysiology Catheters are complex diagnostic mapping solutions designed to enable enhanced diagnostic precision for coronary sinus mapping.

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Enhanced diagnostic precision for coronary sinus mapping and beyond

2F microcatheter telescoping out of 6F catheter with lumen into deeper coronary venous anatomy.

How it works

Multielectrode shafts of EPstar Fixed Electrophysiology Catheters.

EPstar 2F Fixed Electrophysiology Catheter*

The 2F diagnostic microcatheter enables mapping and pacing in distal coronary sinus (CS) branches, which may be inaccessible to other catheters.

EPstar 6F Fixed Electrophysiology Catheter with Lumen

The 6F diagnostic catheter is torquable with a large lumen, facilitating placement and telescoping of the 2F microcatheter in the coronary venous system.

Diagram of heart showing communicating vein, vein of Marshall, and middle cardiac vein.

Using the EPstar 2F Microcatheter*

Enable mapping and pacing in distal coronary venous system branches with the octapolar* 2F microcatheter for deeper diagnostic precision

2F mapping has been used for:

  • Idiopathic ventricular tachycardias1,2
  • Complex atrial tachycardias3,4
  • Left Wolff-Parkinson-White5
  • Mapping and pacing in vein of Marshall3,6

Why choose EPstar Fixed Electrophysiology Catheters

Complex diagnostic mapping solutions

Detail of the braided shaft and multiple electrodes along the EPstar 6F Fixed Electrophysiology Catheter.

Broad coverage

Achieve optimal coverage for diagnostic mapping with 18 electrodes total using the octapolar 2F microcatheter and the decapolar 6F catheter with lumen

Atraumatic distal electrode tip of the EPstar 2F Electrophysiology Catheter.

Confidence to access CS

Atraumatic distal tip of the 2F microcatheter facilitates confidence in accessing branches of the CS

Tip electrode with lines indicating pacing.

Enhanced pacing

Larger 1.5 mm and 1.3 mm electrodes of the 2F microcatheter enable crisp electrograms and better pacing

Flexible and atraumatic soft distal tip of the EPstar 6F Fixed Electrophysiology Catheter with Lumen.

Soft touch 

Maneuver confidently in the CS using the 6F diagnostic catheter; stiffness decreases gradually towards a soft, atraumatic distal tip

Detail of distal end of EPstar 6F Fixed Electrophysiology Catheter with Lumen

Wide lumen

3F lumen is compatible with devices up to 0.035” diameter and allows for flushing and aspiration of fluids

Fully braided shaft to allow greater maneuverability.

Catheter control

The 6F catheter’s fully braided shaft, even under electrodes, allows greater maneuverability

What’s included

EPstar Fixed Electrophysiology Catheters and Electrophysiology Cables are sold individually and as solution kits.

EPstar Coronary Venous Mapping Solution

  • EPstar 2F Microcatheter*
  • EPstar 6F Fixed Catheter with Lumen (95 cm length)
  • Connector cables

EPstar Bundle Kit (555)

  • EPstar 2F Microcatheter*
  • EPstar 6F Fixed Catheter with Lumen (5-5-5 mm electrode spacing, 65 cm length)

EPstar Bundle Kit (282)

  • EPstar 2F Microcatheter*
  • EPstar 6F Fixed Catheter with Lumen (2-8-2 mm electrode spacing, 65 cm length)

Publication summaries

May 2020, Da-Wariboko et al., scientific session poster published in Heart Rhythm

The EPstar 2F catheter* enabled successful mapping and pacing through small veins to detect activation patterns, characterize epicardial signals, and verify ethanol induced ablation.

EPstar Fixed Electrophysiology Catheter - 2F


French size2F
Electrodes8 octapolar
Usable length130 cm
Electrode spacing5-5-5 mm
Electrode size1.3mm
Distal tip: 1.5 mm

EPstar Fixed Electrophysiology Catheter with Lumen - 6F


French size6F
Electrodes10 (65 cm), 11 (95 cm)
Usable length65 cm, 95 cm
Electrode spacing5-5-5 mm, 2-8-2 mm (65 cm)

5-5-5 mm decapolar, additional indifferent
electrode 220 mm from distal tip (95 cm)
Electrode size1.2mm

EPstar Fixed Electrophysiology Cables


Usable length2.3 meters
Number of pins10, 14
Number of usesSingle use or 5 uses

Ordering information

Product typeProductElectrode spacingProduct code
 Diagnostic cathetersEPstar 2F Fixed Electrophysiology Catheter5-5-5 mmDCF-2-8-55-130
EPstar 6F Fixed Electrophysiology Catheter with Lumen (95 cm)5-5-5 mmDLF-6-10-55-95R
EPstar 6F Fixed Electrophysiology Catheter with Lumen (65 cm)5-5-5 mm
2-8-2 mm
Solution kits

EPstar Coronary Venous Mapping Solution

  • 2F microcatheter*
  • 95 cm 6F catheter
  • Required cables
5-5-5 mm

EPstar Bundle Kits

  • 2F microcatheter*
  • 65 cm 6F catheter

6F: 5-5-5 mm 

6F: 2-8-2 mm


CablesElectrophysiology Cable (10 pins, resterilizable - 5 uses)N/ADEX-10
Electrophysiology Cable (14 pins, single use)N/ADEX-14

Looking for more training? Contact our medical education team

In-person training

Explore in-person training opportunities for electrophysiologists of all experience levels.

Surgeons in operating room.

Online education

Coronary Venous Mapping for Complex Arrhythmia Substrates: Approach to Mapping LV Summit PVCs

David Callans, MD, shares an overview of the 2F EPstar Fixed Electrophysiology Catheter

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* EPstar Fixed Electrophysiology Catheter

† EPstar Fixed Electrophysiology Catheter with Lumen


  1. Komatsu, Y., et al. (2018). Idiopathic ventricular arrhythmias originating from the vicinity of the communicating vein of cardiac venous systems at the left ventricular summit. Circ Arrhythm Electrophysiol, 11(1). doi: 10.1161/CIRCEP.117.005386
  2. Ito, S., et al. (2005). Simultaneous mapping in the left sinus of valsalva and coronary venous system predicts successful catheter ablation from the left sinus of valsalva. Pacing Clin Electrophysiol, 28(s1). doi: 10.1111/j.1540-8159.2005.00081.x
  3. Kawamura, I., et al. (2019). Characteristics of Marshall bundle-related atrial tachycardias using an ultrahigh-resolution mapping system. J Interv Card Electrophysiol, 55(2), 161-169. doi: 10.1007/s10840-019-00544-9
  4. Yamamoto, T., et al. (2014). Marshall bundle reentry: A novel type of macroreentrant atrial tachycardia. Heart Rhythm, 11(7), 1229-1232. doi: 10.1016/j.hrthm.2014.03.051
  5. Davis, L., et al. (1995). Simultaneous mapping of the tricuspid and mitral valve annuli at electrophysiological study. Br Heart J, 73(4), 377-382. doi: 10.1136/hrt.73.4.377
  6. Fujisawa, T., et al. (2019). Importance of the vein of Marshall involvement in mitral isthmus ablation. Pacing Clin Electrophysiol, 42(6), 617-624. doi: 10.1111/pace.13640