Methaemoglobinaemia in young infants with diarrhoea
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R Dagan1, E Zaltzstein, R Gorodischer
1Department of Pediatrics, Soroka University Hospital, Beer-Sheva, Israel.
Insights
Infants under 2 months experiencing acute diarrhea may develop unexplained methaemoglobinaemia. This condition, methaemoglobinaemia, resolved with treatment but recurred in some infants before they reached two months of age.
Area of Science:
- Pediatrics
- Neonatology
- Clinical Toxicology
Background:
- Methaemoglobinaemia is a condition where hemoglobin is oxidized, reducing oxygen transport.
- Acute diarrhea is a common ailment in infants.
- Known causes of methaemoglobinaemia were not identified in affected infants.
Purpose of the Study:
- To describe a series of infants presenting with methaemoglobinaemia and acute diarrhea.
- To investigate the characteristics and potential mechanisms of this specific presentation in young infants.
- To report on the clinical course and outcomes of these cases.
Main Methods:
- Case series describing 17 infants under 2 months of age.
- Clinical observation of symptoms, treatment, and outcomes.
- Exclusion of known causes of methaemoglobinaemia.
Main Results:
- Seventeen infants under 2 months presented with methaemoglobinaemia and acute diarrhea.
- No known mechanisms for methaemoglobinaemia were identified in these infants.
- All infants recovered with conventional therapy, but three experienced relapses before 2 months of age.
Conclusions:
- A specific association between acute diarrhea and unexplained methaemoglobinaemia exists in infants under 2 months.
- The underlying mechanism of methaemoglobinaemia in this context remains unclear.
- Further research is needed to elucidate the pathophysiology and identify potential triggers.
Abstract:
Seventeen infants under 2 months of age are described who presented with methaemoglobinaemia and acute diarrhoea during a period of 2 years. No infants beyond this age presented with such characteristics. In none of them was one of the known mechanisms of methaemoglobin formation found. All infants recovered with conventional therapy. Methaemoglobin associated with diarrhoea relapsed in three infants before they were 2 months old. Twenty-six similar cases have been reported in the literature. The mechanism of methaemoglobinaemia in these infants is unclear.