Acute kidney injury after TAVR: Key risk factors every cardiologist should know

March 19, 2026 - 05:55

New research is bringing into sharp focus the critical danger posed by acute kidney injury (AKI) in patients undergoing transcatheter aortic valve replacement. This post-procedural complication is now strongly linked to a significantly increased risk of both short- and long-term mortality, making its prevention a top priority for heart teams.

Cardiologists are advised to closely monitor several key patient factors that elevate AKI risk. A history of pre-existing chronic kidney disease remains the most potent predictor. The procedure itself also contributes; prolonged operative time, the use of large volumes of contrast dye for imaging, and certain procedural complexities can all impair kidney function.

Patient-specific conditions further compound the risk. Those presenting with anemia, low blood pressure, or diabetes mellitus are particularly vulnerable. The studies underscore that a multifaceted assessment is essential. By identifying high-risk patients before the procedure, clinicians can implement protective strategies, such as meticulous fluid management and minimizing contrast exposure, to improve overall outcomes and survival rates following this life-saving heart procedure.