Tips for Testing Adults With Suspected Genetic Kidney Disease

Area of Science:

• Nephrology
• Medical Genetics

Background:

• Genetic kidney diseases are prevalent and encompass various conditions, including cystic kidney diseases, tubulopathies, congenital abnormalities of the kidney and urinary tract (CAKUT), and some glomerulopathies.
• Clinical suspicion for genetic kidney disease arises from family history, early onset, or extrarenal manifestations, though exceptions are common.

Purpose of the Study:

• To highlight the significance of genetic testing in diagnosing and managing genetic kidney diseases.
• To outline the implications of genetic testing for patients and their families, including diagnosis, inheritance patterns, prognosis, and treatment options.

Main Methods:

• Discussion of the process of genetic testing, including informed consent and the interpretation of results.
• Emphasis on the importance of patient education, genetic counseling, and cascade testing for at-risk family members.

Main Results:

• Genetic testing provides definitive diagnosis, clarifies inheritance patterns, identifies at-risk relatives, predicts disease course, and may reveal treatment strategies.
• Challenges in genetic testing include cases where no pathogenic variant is found or variants of uncertain significance (VUS) are reported, which should not guide clinical decisions.

Conclusions:

• Genetic testing is essential for accurate diagnosis and management of genetic kidney diseases.
• Comprehensive genetic counseling and cascade testing are vital for affected families to inform clinical decisions and reproductive planning.