What is a possible solution for a lead crush?

In the context of lead crush, the appropriate solution involves addressing the situation where the lead, typically used for pacing, has been compromised due to mechanical pressure. In this case, unipolar conduction may be feasible if the inner conductor remains intact, meaning that while the lead may be physically damaged, it can still conduct electrical signals effectively in a unipolar mode. This allows the pacing system to continue functioning without needing an immediate physical replacement.

However, if the inner conductor is also damaged, lead replacement becomes necessary to ensure reliable pacing. This dual approach allows healthcare providers to manage situations where lead performance may be compromised while minimizing patient risk and ensuring ongoing cardiac support.

In contrast, increasing the battery voltage wouldn't directly resolve a lead crush issue, as the electrical characteristic of the lead is already compromised due to physical damage. Reinforcing the outer insulation might not be a viable solution either, as it does not address the actual problem of the lead's internal integrity. Switching to dual-chamber pacing is unrelated to the specific issue of lead crush, as it involves a different pacing strategy rather than addressing the problem of a damaged lead. Thus, the chosen answer aptly reflects the conditions surrounding a lead crush and its possible solutions.