Acute kidney injury (AKI) is a sudden episode of kidney failure or kidney damage that happens within a few hours or a few days. AKI causes a build-up of waste products in your blood and makes it hard for your kidneys to keep the right balance of fluid in your body. AKI can also affect other organs such as the brain, heart, and lungs. Acute kidney injury is common in patients who are in the hospital, in intensive care units, and especially in older adults.
Signs and symptoms of acute kidney injury differ depending on the cause and may include:
In some cases, AKI causes no symptoms and is only found through other tests done by your healthcare provider.
Acute kidney injury can have many different causes. AKI can be caused by the following:
Decreased blood flow
Some diseases and conditions can slow blood flow to your kidneys and cause AKI.
These diseases and conditions include:
Direct Damage to the Kidneys
Some disease and conditions can damage your kidneys and lead to AKI. Some examples include:
Blockage of the urinary tract
In some people, conditions or diseases can block the passage of urine out of the body and can lead to AKI.
Blockage can be caused by:
Depending on the cause of your acute kidney injury, your healthcare provider will run different tests if he or she suspects that you may have AKI. It is important that AKI is found as soon as possible because it can lead to chronic kidney disease, or even kidney failure. It may also lead to heart disease or death.
The following tests may be done:
Treatment for AKI usually requires you to stay in a hospital. Most people with acute kidney injury are already in the hospital for another reason. How long you will stay in the hospital depends on the cause of your AKI and how quickly your kidneys recover. In more serious cases, dialysis may be needed to help replace kidney function until your kidneys recover. The main goal of your healthcare provider is to treat what is causing your acute kidney injury. Your healthcare provider will work to treat all of your symptoms and complications until your kidneys recover.
After having AKI, your chances are higher for other health problems (such as kidney disease, stroke, heart disease) or having AKI again in the future. The chances for developing kidney disease and kidney failure increase every time AKI occurs. To protect yourself, you should follow up with your healthcare provider to keep track of your kidney function and recovery. The best ways to lower your chances of having kidney damage and to save kidney function are to prevent acute kidney injury or to find and treat it as early as possible.
A recent study showed that IBUPROFEN may increase the risk of Acute Kidney Injury (AKI) in ultra marathon runners. Caution should be taken before ingesting IBUPROFEN and other similar medications known as non-steroidal anti-inflammatory drugs (NSAIDs).
Reference: Lipman GS, Shea K, Christensen M, et al. Ibruprofen versus placebo effect on acute kidney injury in ultramarathons: a randomised controlled trial. Emerg Med Published Online First: 05 July 2017 doi: 10.1136/emermed-2016-206353,
Contributed by: Dr. Ehsan Nobakht
Researchers found no increased risk of AKI (Acute Kidney Injury) associated with sodium-glucose cotransporter-2 (SGLT2) inhibitor use. SGLT2 inhibitors are a class of prescription medications used to help lower blood sugar levels by promoting the removal of glucose through the kidneys in patients with type 2 Diabetes.
Acute Kidney Injury in Patients on SGLT2 Inhibitors: A Propensity-Matched Analysis. Girish N. Nadkarni, Rocco Ferrandino, Alexander Chang, Aditya Surapaneni, Kinsuk Chauhan, Priti Poojary, Aparna Saha, Bart Ferket, Morgan E. Grams, Steven G. Coca. Diabetes Care Aug 2017, dc171011; DOI: 10.2337/dc17-1011
Contributed by: Niloofar Nobakht, MD, FASN
Disclaimer: The UCLA Health System cannot guarantee the accuracy of such information. The information is provided without warranty or guarantee of any kind. Please speak to your Physician before making any changes.