Hydramnios and Observations in Bartter's Syndrome

. A boy was born after a pregnancy complicated by a hydramnios. He appeared to suffer from Banter's syndrome, a disease characterized by hyperreninemia, hyperal‐dosteronism and excess prostaglandin production resulting in hypokalemia, normotension, impaired urine concentration ability, polyuria and renal sodium loss. Other children with Banter's syndrome, and also a different syndrome characterized by polyuria and hydramnios, are reviewed. In the evaluation of gross hydramnios of unknown etiology, Banter's syndrome might also be considered.