Active Can/SVC

Question 1

What is the active can/SVC coil feature?

Answer 1

A way to turn the SVC coil or can on/off to troubleshoot high DFTs

Question 2

What is the nominal programming for SVC coil/Active can?

Answer 2

Can and SVC on

Question 3

What does the “Can + SVC” feature do?

Answer 3

Connects the active can (HVA) and the active SVC coil (HVX). Current flows between these electrodes and the RV coil (HVB).

Question 4

What does the “Can Off” setting do?

Answer 4

It removes the can (HVA) as a vector, so current flows between the SVC coil (HVX) and the RV coil (HVB)

Question 5

What are the polarities of each HV electrode?

Answer 5

The polarities of the can (HVA) and the SVC coil (HVX) are always the same and the RV coil (HVB) is the opposite.

Question 6

How is the direction of the current determined?

Answer 6

By the settings for the pathway parameter.

Question 7

Are there any safeguards for this algorithm?

Answer 7

There is a non-programmable patient alert if the active can is programmed off and there is no SVC coil plugged into the can.

Question 8

What is considered “normal” shock polarity and what is considered “reverse”?

Answer 8

AX>B is normal and B>AX is reverse.

Question 9

Which shock polarity have studies shown lowers DFT’s?

Answer 9

Reverse