Bartter and Gitelman syndromes are inherited renal salt-wasting disorders that share many laboratory features but differ in their underlying physiology, clinical presentation, and management. In this episode, we compare these two important tubulopathies using a practical nephron-based approach to help learners understand—not just memorize—their key differences.

Topics include the physiology of the thick ascending limb and distal convoluted tubule, the pathophysiology of Bartter and Gitelman syndromes, interpretation of urine calcium and magnesium, genetic causes, and evidence-based treatment strategies for pediatric patients.

Selected References:

• Seyberth HW, Schlingmann KP. Bartter- and Gitelman-like Syndromes: Salt-Losing Tubulopathies with Loop or Distal Tubule Dysfunction. Physiological Reviews.

• Blanchard A, Bockenhauer D, Bolignano D, et al. Gitelman Syndrome: Consensus and Guidance from ERKNet.Kidney International.

• Konrad M, Nijenhuis T, Ariceta G, et al. Diagnosis and Management of Bartter Syndrome: ERKNet Consensus Recommendations. Nature Reviews Nephrology.

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Disclaimer: Kidney Kids is an educational podcast for medical students, pediatric residents, pediatric nephrology fellows, advanced practice providers, and practicing clinicians. The conversations use AI-generated voices portraying fictional physicians. This content is intended for educational purposes only and should not replace clinical judgment, institutional protocols, or consultation with qualified healthcare professionals.