Idiomas disponibles
Idiomas disponibles
Figure 4. Helix Locking Tool retraction
7.
7. After completion, slide tool backward to remove.
Atrial Lead Placement
1.
1. Using a straight stylet, introduce the lead into the atrium so that it rests on the floor of the atrial chamber.
2.
2. Replace the straight stylet with a J‑shaped stylet, or withdraw the existing stylet, bend it into a soft
J‑shape, and reinsert the curved stylet into the lead.
3. As the stylet approaches the electrode tip, introduce more lead to ensure that the tip remains in the
3.
atrium as the lead takes its "J" shape.
4. Retract the lead as necessary to ensure that the electrode tip slides into the atrial appendage. Observe
4.
the fluoroscopy monitor to verify that the "J" is straightening.
5.
5. When the lead is past the appendage and in the chamber, feed more lead into the heart so that it regains
its "J" shape.
6.
6. Take a firm grip on the stylet, then introduce more of the lead so that the electrode tip goes as far as
possible into the atrium. On fluoroscopy, the electrode tip will "tilt over" as proof that it can go no further.
7. With the Helix Locking Tool, extend the helix so that the lead is fixed to the atrial wall.
7.
8. Retract the entire stylet from the lead with a smooth and steady motion.
8.
9.
9. Check that the lead is properly anchored by introducing more of it into the heart until the loop that forms
either lies on the bottom of the atrium, or is about to enter the inferior vena cava or the right ventricle.
Retract any excess lead until it acquires the correct "J" shape.
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