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Familial ochronosis

R Cortina1, C Morís, A Astudillo

  • 1Brook General Hospital, London, U.K.

European Heart Journal
|February 1, 1995
PubMed
Summary
This summary is machine-generated.

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Alkaptonuric ochronosis, a rare genetic disorder, can lead to severe aortic stenosis requiring valve replacement. This case highlights the variable presentation of ochronosis within a single family.

Area of Science:

  • Cardiology
  • Genetics
  • Rare Diseases

Background:

  • Alkaptonuric ochronosis ( ochronosis) is a rare inherited metabolic disorder caused by deficiency of the enzyme homogentisate 1,2-dioxygenase.
  • This deficiency leads to the accumulation of homogentisic acid, causing progressive deposition of a pigment in connective tissues, including cartilage and the cardiovascular system.

Observation:

  • A 72-year-old female with a confirmed diagnosis of ochronosis presented with symptomatic severe aortic stenosis.
  • The patient's family history revealed that four of her nine siblings also had ochronosis.
  • Notably, only the index patient among the affected siblings exhibited significant aortic stenosis.

Findings:

  • The patient required aortic valve replacement due to symptomatic severe aortic stenosis.

Related Experiment Videos

  • This case underscores the potential for ochronosis to manifest with significant cardiovascular complications, specifically aortic stenosis.
  • The intrafamilial variability in disease presentation suggests that genetic or environmental modifiers may influence the development of aortic stenosis in individuals with ochronosis.

    • Implications:

    • This case highlights the importance of cardiovascular surveillance in patients diagnosed with alkaptonuric ochronosis.
    • Understanding the factors contributing to intrafamilial variability in ochronosis complications could lead to improved risk stratification and personalized management strategies.
    • Further research into the genetic and molecular mechanisms underlying ochronosis-associated cardiovascular disease is warranted.