Learning from heart procedure complications to improve safety

This is a research registry that tracks and studies complications occurring during coronary angiography and percutaneous coronary interventions (PCI)—procedures where doctors use catheters to examine or treat heart arteries. By carefully documenting what complications occur, how doctors manage them, and what happens to patients afterward, researchers hope to identify ways to prevent problems and improve safety for everyone undergoing these procedures.

While heart procedures have become safer over time, complications can still happen—especially during complex cases. By systematically studying these complications across many hospitals and patients, doctors can learn what works best to manage problems quickly and improve both immediate and long-term outcomes.