Related Experiment Videos
Bartter syndrome. Typical facies and normal plasma volume
American Journal of Diseases of Children (1960)
|October 1, 1975
Summary
This study identifies Bartter syndrome in two infants presenting with metabolic alkalosis and failure to thrive. It suggests an alternative mechanism for depressed renin response beyond hypovolemia in certain Bartter syndrome cases.
Area of Science:
- Pediatric Nephrology
- Endocrinology
- Genetics
Background:
- Bartter syndrome is a rare genetic disorder affecting kidney salt reabsorption.
- It typically presents with hypokalemic metabolic alkalosis, hyperreninemia, and hyperaldosteronism.
- Normotension in Bartter syndrome is often attributed to hypovolemia, though this is not always the case.
Observation:
- Two infants diagnosed with Bartter syndrome exhibited failure to thrive and characteristic metabolic disturbances.
- Despite elevated plasma renin activity and secondary hyperaldosteronism, both infants maintained normal blood pressure.
- Distinctive facial features were noted, consistent with previously reported cases.
Findings:
- The study challenges the traditional view that hypovolemia solely explains normotension in Bartter syndrome.
- Normal or slightly elevated plasma volume was observed in these patients.
- This suggests potential alternative mechanisms contributing to the blunted renin-angiotensin-aldosterone system response.
Implications:
- Findings may necessitate a re-evaluation of the pathophysiology of Bartter syndrome.
- Understanding alternative mechanisms could lead to improved diagnostic and therapeutic strategies.
- Highlights the importance of considering plasma volume status in the management of Bartter syndrome.