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Living with Aldosterone-producing adenoma with seizures and neurological abnormalities

A rare genetic condition with early, severe high blood pressure, low potassium, seizures, and nervous system problems.

Understanding Aldosterone-producing adenoma with seizures and neurological abnormalities

Aldosterone-producing adenoma with seizures and neurological abnormalities is a rare genetic neurologic disease starting in newborns and infants.

The body makes too much of the hormone aldosterone (primary hyperaldosteronism), which causes severe high blood pressure and low potassium early in life. People also have nervous system problems, including seizures, very low muscle tone, stiff muscles (spasticity), cerebral palsy, and profound developmental delay.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • High blood pressure (hypertension)
  • High aldosterone level
  • Seizures
  • Cerebral palsy
  • Severe intellectual disability
  • Extreme thirst (polydipsia)

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists and hormone specialists.

  3. Consider genetic testing

    Changes in CACNA1D are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Genetic specialists (geneticists); Hormone specialists (endocrinologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Is genetic testing for CACNA1D available for our family?
How can blood pressure and potassium be managed?
Which specialists should be on my child's care team?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Dominant
GenesCACNA1D

Changes in the CACNA1D gene cause this condition. It is autosomal dominant, so a changed copy of the gene from one parent can be enough.

GeneticEndocrine

Also known as: aldosterone-secreting adenoma with seizures and neurological abnormalities; apa with seizures and neurological abnormalities; complex neurodevelopmental disorder with or without aldosteronism; conn adenoma with seizures and neurological abnormalities; primary aldosteronism, seizures, and neurologic abnormalities; primary hyperaldosteronism-seizures-neurological abnormalities syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Aldosterone-producing adenoma with seizures and neurological abnormalitiesGARD ID 17591 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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