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Kidney failure following vascular or general surgery

When kidneys lose the ability to remove waste and concentrate urine without losing necessary electrolytes, it is considered kidney failure. When it happens during surgery, it is often due to a sudden decrease of normal blood flow to the kidneys, which is considered acute renal failure (ARF). Usually the kidneys can recover from ARF; however they often remain at an increased risk of failing in the future.

All surgeries involve risk and the possibility of complications. While some patients have higher risks than others, some complications may be preventable.

About this measure

This measure tracks patients who experienced kidney failure after general or vascular surgery, based on a sampling methodology developed by the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP).

The rate of kidney failure for general and vascular surgery patients is expressed as an odds ratio. This reports the estimated odds of an event happening at Northwestern Memorial compared to the estimated odds of that event happening in all hospitals in the ACS NSQIP database. A number of 1.0 means the hospital is performing as expected. A number less than 1.0 means the hospital is performing better than expected. A number greater than 1.0 means the hospital is performing worse than expected.

In this case, a lower number is better.