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Published on: December 11, 2016
Exertional rhabdomyolysis in carbonic anhydrase 12 deficiency
Dekel Avital1, Eli Hershkovitz2,3, Neta Loewenthal1,4,5
1Pediatric Division, Soroka Medical Center, Beer-Sheva, Israel.
Insights
Carbonic anhydrase 12 deficiency causes salt wasting and dehydration. Adolescents with this rare condition can develop severe rhabdomyolysis from exercise in hot weather.
Area of Science:
- Biochemistry
- Genetics
- Pediatrics
Background:
- Carbonic anhydrase 12 (CA12) deficiency is a rare autosomal recessive disorder.
- Characterized by isolated salt wasting in sweat, leading to infantile hyponatremic dehydration and poor weight gain.
Observation:
- Two adolescents with diagnosed CA12 deficiency experienced severe rhabdomyolysis.
- This occurred after physical activity in a hot climate.
Findings:
- CA12 deficiency can lead to severe rhabdomyolysis, a previously unreported complication.
- Highlights the ongoing risk of excessive salt loss through sweat.
Implications:
- Patients require increased salt intake and avoidance of strenuous exercise in heat.
- Emphasizes the need for specific precautions in managing CA12 deficiency.
Background:
Carbonic anhydrase 12 (CA12) deficiency, a newly recognized rare disorder, has been described among Israeli Bedouin kindred as an autosomal recessive form of isolated salt wasting in sweat, which leads to severe infantile hyponatremic dehydration, visible salt precipitation after sweating, poor feeding and slow weight gain in infancy.
Case Presentation:
We present two adolescents diagnosed with CA12 deficiency who developed severe rhabdomyolysis as a result of physical activity in a hot climate.
Conclusions:
This presentation highlights a previously unreported but significant clinical complication of this disorder and emphasizes the persistent risk of excessive salt loss via sweat and a need for certain precautions, such as increased salt intake and avoidance of prolonged and/or strenuous exercise.
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