device pocket erosion
Breakdown of tissue overlying an implanted cardiac device, potentially exposing the device or leads.
Full Definition
Device pocket erosion is a serious complication where the skin and subcutaneous tissue overlying a cardiac device gradually breaks down, potentially exposing the device hardware. Risk factors include thin patients, superficial implantation, prior radiation, steroid use, and poor wound healing. Erosion may present as skin thinning, discoloration, ulceration, or actual device exposure. The condition often requires complete device and lead removal due to high infection risk, followed by temporary pacing if needed and eventual contralateral reimplantation after tissue healing. Prevention focuses on adequate tissue coverage, proper implantation depth, and careful patient selection for device type and placement location.
Usage
Usage note: Document the extent of erosion (threatening vs. complete) in clinical reports.
In Context
- "The thin patient developed device pocket erosion six months post-implantation requiring complete system removal." — Complication case report
- "Early pocket erosion signs include skin thinning and discoloration over the device." — Clinical teaching material