Diagnostic Catheters Flashcards
Diagnostic Catheter
Used to detect electrical activity in various locations in the heart to evaluate a suspected arrhythmia.
Advanced Diagnostic Catheter
The diagnostic catheter is Navigational (NAV), meaning it has a magnetic sensor known as a “location” sensor in the tip that allows the catheter to be used for 3D electroanatomical mapping.
Non-Navigational (Non-NAV)
The catheter has electrodes, but it does not have a location sensor in the tip, meaning it cannot be used for 3D electroanatomical mapping.
Deflectable
The physician - through use of the catheter’s handle - can change the direction, or “deflect” the tip of the catheter independent of the rest of the catheter. The tip then returns to its original shape. Most deflectable catheters are either uni-directional or bi-directional.
Uni-Directional
The tip of the deflectable catheter can only be pulled in one direction.
Bi-Directional
The tip of the deflectable catheter can be pulled in two directions. BWI EZ STEER™ Catheter platform.
Fixed Curve
Fixed curve catheters have a predefined distal curve shape. They have high torque transmission, which means that the doctor can turn the catheter tip almost 1 to 1 or like-for-like by rotating the catheter handle.
A Curve
Also known as the Josephson curve, this is a small fixed curve for smaller areas of the heart, such as the high right atrium and right ventricular apex. At Biosense Webster Inc., the color-coding for this curve is yellow.
D Curve
Also known as the Damato curve, this large curve is well suited for the ventricle. It is color-coded as blue.
F Curve
Also known as the Cournand curve, this longer curve is well suited to the HIS bundle. The color-coding for this curve is black.
Auto-ID
For diagnostic catheters, the blue catheter connector indicates that the diagnostic catheter has Auto ID, meaning the CARTO® 3 System can automatically recognize the type of catheter being used. In contrast, the black catheter connector indicates that the catheter does not have Auto ID.
Quadrapolar
This diagnostic catheter has four electrodes. Quadrapolars span a small area, such as in the high right atrium and right ventricular apex. Used primarily for detecting cardiac electrical events (ex. - atrial depolarization) and pacing.
Octapolar
This diagnostic catheter has 8 electrodes. Octapolars are generally used in the HIS or coronary sinus.
Decapolar
The diagnostic catheter has 10 electrodes. Decapolars span a large area, such as the coronary sinus. Used to detect patterns of cardiac depolarization.
Duo-Decapolar
Refers to non-navigational diagnostic catheters with 20 electrodes. Additionally, there is a specific Biosense Webster Inc. catheter that goes by this name. Used to detect patterns of cardiac depolarization.
