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Hydrocortisone Linked to Favorable Course in First Triple A Syndrome Case in French GuianaRare Triple A Syndrome Diagnosed in French Guiana Boy

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Key Takeaway
Consider Triple A syndrome in pediatric adrenal insufficiency; this single case cannot guide treatment.

This is a single case report describing a 5-year-old boy in French Guiana with Triple A syndrome, a rare multisystem disorder. The report documents molecular confirmation and the clinical course under hydrocortisone replacement.

Genetic testing identified a homozygous pathogenic variant in the AAAS gene (NM_015665.6:c.43C > A, p.Gln15Lys, ACMG Class 5). The authors report a favorable clinical course under hydrocortisone replacement. No comparator, primary outcome, follow-up duration, or safety data were reported.

The authors state this is the first case diagnosed in French Guiana and emphasize phenotypic and molecular variability. The only limitation noted is that this is a single case report. Funding and conflicts of interest were not reported.

Because this is one case, it cannot establish efficacy, causality, or generalizability. It may be useful for clinicians considering Triple A syndrome in similar presentations, but it does not change treatment recommendations.

How this fits prior evidence

This case report does not confirm or extend the prior coverage, which addressed corticosteroids in adult severe community-acquired pneumonia, in-hospital cardiac arrest, adrenal insufficiency monitoring, adult sepsis, and immune dysregulation in pneumonia. Those items involved adult populations, mortality or resuscitation outcomes, and biomarker-guided approaches. This report describes a pediatric genetic disorder with hydrocortisone replacement and a favorable clinical course, a different context with no comparative or outcome data. It addresses a gap in geographic and phenotypic description rather than therapeutic evidence.

This is a single case report of a 5-year-old boy in French Guiana who was diagnosed with Triple A syndrome. Triple A syndrome is a rare genetic condition that affects the adrenal glands, the tear glands, and the swallowing muscles. The boy was confirmed to have a specific genetic variant in the AAAS gene, which is linked to the condition. He was treated with hydrocortisone replacement and had a favorable clinical course.

The report highlights that this is the first case of Triple A syndrome diagnosed in French Guiana. It also points out that the condition can look different from person to person, both in symptoms and in genetic makeup. No side effects or safety concerns were reported in this case.

Because this is only one patient, the findings cannot be used to make general claims about how well hydrocortisone works for everyone with Triple A syndrome. The report is meant to raise awareness among doctors, especially in regions where the condition may not have been seen before.

For families, the main takeaway is that rare genetic conditions can appear in unexpected places, and genetic testing can help confirm a diagnosis. Anyone with concerns about similar symptoms should talk to a doctor.

What this means for you:
A single case report describes the first diagnosis of Triple A syndrome in French Guiana, with a favorable response to hydrocortisone.

Common questions

What is Triple A syndrome?

Triple A syndrome is a rare genetic condition that mainly affects the adrenal glands, tear glands, and the muscles used for swallowing. It is caused by changes in the AAAS gene. Symptoms can vary widely, and diagnosis is confirmed through genetic testing. This case report describes one boy with the condition.

Is hydrocortisone safe for Triple A syndrome?

In this single case report, the 5-year-old boy had a favorable clinical course while on hydrocortisone replacement. No side effects or safety problems were reported. However, because this is only one patient, safety cannot be generalized. Anyone considering treatment should discuss risks and benefits with a doctor.

How common is Triple A syndrome in French Guiana?

This is the first case of Triple A syndrome diagnosed in French Guiana, according to the report. That does not mean it is common there. It may simply mean the condition had not been recognized before. The report aims to make doctors aware that it can occur in this region.

Can genetic testing confirm Triple A syndrome?

Yes. In this case, genetic testing found a specific disease-causing variant in the AAAS gene, which confirmed the diagnosis. The report notes that the condition can vary in its genetic makeup and symptoms, so testing is important when the condition is suspected.

Study Details

Study typeSystematic review
EvidenceLevel 1
PublishedSep 2026
View Original Abstract ↓
Triple A syndrome (OMIM #231550) is a rare autosomal recessive disorder defined by the triad of alacrima, adrenal insufficiency, and achalasia. Around 100 to 150 cases have been reported in the world literature since 1978. We report the first case diagnosed in French Guiana, in a 5-year-old boy who presented with severe hypoglycemic episodes. Exome sequencing identified a homozygous pathogenic variant in the AAAS gene (NM_015665.6:c.43C > A, p.Gln15Lys — ACMG Class 5). Family testing confirmed heterozygous carrier status in both parents, while the younger brother was found to be homozygous wild-type and unaffected. The clinical course under hydrocortisone replacement has been favorable. A literature review and comparative analysis are presented to place this case in context and to highlight the phenotypic and molecular variability of the syndrome.
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