Impact of nephropathy after percutaneous coronary intervention and a method for risk stratification.

Radiocontrast-induced nephropathy (RCIN) after percutaneous coronary intervention (PCI) is associated with grave consequences, but risk stratification of patients has not been well elucidated. This analysis derived a time-insensitive score to predict the risk of RCIN after PCI. A derivation cohort (1993 to 1998) and a validation cohort (1999 to 2002) comprised 20,479 patients who underwent PCI.

Simplified scoring system for predicting mortality after percutaneous coronary intervention.

Objectives: We sought to develop a simplified scoring system based on pre-intervention clinical characteristics to predict in-hospital mortality after percutaneous coronary intervention (PCI).

Background: Percutaneous coronary intervention is associated with variety of complications, including the risk of death. Factors leading to poor outcomes need to be identified.