Which statement describes integrated bipolar leads?

Which statement describes integrated bipolar leads?

• A. Integrated leads are not as good as sensing and detecting, but are better at shocking.
• B. Integrated leads are better at sensing and detecting, but not as good at shocking.
• C. Integrated leads are equal in sensing/detecting and shocking.
• D. Integrated leads are not used in Biotronik devices.

Answer: (A)

Integrated bipolar leads place the sensing and shocking electrodes very close together within one lead, so the electrical field they rely on for sensing is smaller and more localized. That close spacing can make sensing of cardiac signals less robust than in configurations with a dedicated, separate sensing electrode, and signals can be more affected by noise or small changes in lead position. On the other hand, because the shocking current has a direct, short path between the tip and the proximal coil inside the same lead, defibrillation or cardioversion energy is delivered more efficiently to the heart. In short, integrated bipolar leads tend to be less optimal for sensing/detecting signals but can be better for delivering effective shocks.

Integrated bipolar leads place the sensing and shocking electrodes very close together within one lead, so the electrical field they rely on for sensing is smaller and more localized. That close spacing can make sensing of cardiac signals less robust than in configurations with a dedicated, separate sensing electrode, and signals can be more affected by noise or small changes in lead position. On the other hand, because the shocking current has a direct, short path between the tip and the proximal coil inside the same lead, defibrillation or cardioversion energy is delivered more efficiently to the heart. In short, integrated bipolar leads tend to be less optimal for sensing/detecting signals but can be better for delivering effective shocks.