Obesity Raises Kidney Damage Risk After Heart Surgery

Obesity increases kidney damage risk in patients after heart surgery but effective antioxidants or other therapies that reduce oxidative stress might help lower this risk, according to a study.

Acute kidney injury (AKI), an abrupt decline in kidney function, is an increasingly prevalent and potentially serious condition following major surgery. Sometimes AKI arises after heart surgery because the kidneys are deprived of normal blood flow during the procedure.

Quiz on Obesity

“We are indeed much more than what we eat, but what we eat can nevertheless help us to be much more than what we are”. - Adelle Davis

There are thousands out there battling ‘the bulge’. With childhood obesity on the rise even children are not spared. If your weight issues are threatening to weigh you down learn more about obesity by taking part in this quiz.

To see if extra body weight puts patients at increased risk for developing AKI following heart surgery, Frederic Billings IV, MD (Vanderbilt University School of Medicine) and his colleagues evaluated information from 445 heart surgery patients, 112 of whom (25%) developed AKI.

Among the major findings:

• Obese patients (body mass index, or BMI, ≥30 kg/m2) had an increased risk of developing AKI; specifically, a 26.5% increased risk per 5 kg/m2 increase in BMI.

Ideal Body Weight
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• Oxidative stress, which generates harmful unstable reactive oxygen molecules, plays a role in the link between obesity and AKI.

"The identification of oxidative stress during surgery as a possible mechanism for the development of kidney injury following surgery provides an opportunity to develop and test therapeutic treatments for surgical patients," said Dr. Billings.

Quiz on Kidney
The kidneys are two bean-shaped organs, each about the size of a fist, and are located just below the rib cage, one on each side of your spine.

Healthy kidneys filter about half a cup of blood every minute, removing wastes and extra water to make urine. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder. The bladder stores urine. The kidneys, ureters, and bladder are partof the urinary tract.

kidneys remove wastes and extra fluid from your body. Kidneys also remove acid that is produced by the cells of your body and maintain a healthy balance of water, salts, and minerals-such as sodium, calcium, phosphorus and potassium-in your blood ().

Without this balance, nerves, muscles, and other tissues in the body may not work normally.

Kidneys also make hormones that help

Control your blood pressure
Make red blood cells
Keep your bones strong and healthy

Source-Newswise

Animation on Coronary Artery Bypass Surgery (CABG)
Coronary Artery Bypass Surgery (CABG) is performed to restore the blood supply to areas of heart that have been reduced or has no blood supply due to blockage in the artery.