Autosomal dominant tubulointerstitial kidney disease (ADTKD) is a group of genetic kidney diseases that cause progressive loss of kidney function. Signs and symptoms of all forms of ADTKD include slowly worsening kidney disease (often becoming apparent by the teenage years) that ultimately results in end-stage kidney disease at some time between the ages of 20 and 70, depending on the genetic cause and severity. Urine exams of people with ADTKD show a bland urinary sediment (little blood or little or no protein). Kidney ultrasound examination is generally normal early in the disease course, but some people with ADTKD have cysts in the center of the kidneys (medullary cysts) that may be seen on an ultrasound.
There are 3 known subtypes of ADTKD, which are classified based on their genetic causes and presence of additional features:
In some cases, the genetic cause of ADTKD in a family is not known. People with ADTKD of unknown cause typically do not have features in addition to chronic kidney disease (as is the case for MKD).
Inheritance of ADTKD is autosomal dominant, as the name implies. Most people with ADTKD have a family history of "kidney disease" (if not a family history of ADTKD specifically) or some of the other symptoms. The diagnosis of ADTKD may be suspected based on family history, symptoms, and laboratory tests, and it can be confirmed by genetic testing.
Treatment for kidney disease in people with ADTKD generally follows standard guidelines for chronic kidney disease and may involve kidney transplantation, which cures the disease. The disease does not recur in the transplanted kidney. Other treatments depend on the symptoms in each person. For example, gout may be treated with allopurinol. High meat and seafood intake could worsen gout. Treatment of anemia depends on whether it is causing symptoms. Those with ADTKD-REN are advised to avoid a low-sodium diet and non-steroidal anti-inflammatory drugs.
Source: GARD Last updated on 05-01-20
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