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Definition

A form of Bartter syndrome, an autosomal recessive disorder characterized by impaired salt reabsorption in the thick ascending loop of Henle with pronounced salt wasting, hypokalemic metabolic alkalosis, and varying degrees of hypercalciuria. BARTS2 is a life-threatening condition beginning in utero, with marked fetal polyuria that leads to polyhydramnios and premature delivery. Another hallmark is a marked hypercalciuria and, as a secondary consequence, the development of nephrocalcinosis and osteopenia.

Acronym

BARTS2

Synonyms

aBS2
Antenatal Bartter syndrome 2
Bartter syndrome 2
BS2
Hyperprostanglandin E syndrome 2
Hypokalemic alkalosis with hypercalciuria antenatal 2

Keywords

Bartter syndrome