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Kidney disease increases risk of cancer death

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According to a new study, cancer patients who also suffer from kidney disease are more likely to die from their disease. The study also found that the correlation between cancer mortality and kidney disease remained high even in patients with a mild to moderate reduction in kidney function (also known as early stage chronic kidney disease (CKD)).The study was published online on December 17 by researchers at the University of Sydney in the National Kidney Foundation's American Journal of Kidney Diseases.

“Like cardiovascular disease, cancer is becoming a major cause of death in people with chronic kidney disease,” noted lead researcher, Germaine Wong, MD. She added, “Sadly, intervention to improve outcomes in patients with CKD and cancer is limited and more work is needed to find out the reasons for the increased risk and the poor prognosis for CKD-cancer patients.” Previous research by the investigators established that patients with chronic kidney disease are at increased risk of developing cancer. The latest research builds on that previous research; it showed that patients with CKD are also more likely to die from cancers when compared to patients with normal kidney function. “This research supports the National Kidney Foundation’s recommendation to screen at-risk individuals for kidney disease,” added Joseph Vassalotti, MD, Chief Medical Officer for the National Kidney Foundation. He continued, “Early detection will ensure patients are aware of their condition and the increased risks that cancer and cardiovascular disease pose to those with CKD.”

The study group comprised 3,654 predominantly white individuals; those who had CKD were found to be at least 1.3 times more likely to die from cancers that those without CKD. The association was strongest among those CKD patients who had urinary tract cancers (2.5 fold increase in cancer deaths) and among women with breast cancer, who were almost twice as likely to die from their disease if they had CKD. “People with chronic kidney disease are more likely to develop urinary tract cancers,” explained Dr. Wong. She added, “But as for breast cancer, we suspect it could be a matter of under-treatment. For example, we already know that women with CKD are less likely to be screened for cancer as a whole. So, their cancers may be more advanced before they receive treatment.”

The investigators plan to conduct further research to validate their findings in other population groups; they also plan to conduct a study to predict the benefits and costs of screening for cancers in CKD patients. “Cancer in a patient with CKD is a bad prognosis,” said De. Wong. She added, “Hopefully we can work toward screening in patients with CKD so that prevention measures and monitoring can be initiated early and lives can be saved.”

Kidney Disease Facts from the National Kidney Foundation

  • 1 in 3 American adults is at high risk for developing kidney disease today. The risk increases to 1 in 2 over the course of a lifetime.
  • 1 in 9 American adults has kidney disease–– most do not know that they have it.
  • High blood pressure and diabetes are the two leading causes of kidney disease.

The National Kidney Foundation (NKF) notes that it is the leading organization in the United States dedicated to the awareness, prevention, and treatment of kidney disease for hundreds of thousands of healthcare professionals, millions of patients and their families, and tens of millions of Americans at risk. For more information, click on this link.



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