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O-Ring Aortic Banding Versus Traditional Transverse Aortic Constriction for Modeling Pressure Overload-Induced Cardiac Hypertrophy
Published on: October 6, 2022
Aortic stenosis in cardiovascular ochronosis
L V Ffolkes1, D Brull, S Krywawych
1Department of Histopathology, University College London Hospitals NHS Trust, London, UK.
Journal of Clinical Pathology
|January 11, 2007
Summary
Alkaptonuria, a rare metabolic disorder, can lead to severe cardiac issues like aortic stenosis. This case highlights the importance of recognizing ochronosis in cardiovascular complications.
Area of Science:
- Biochemistry
- Cardiology
- Genetics
Background:
- Alkaptonuria (endogenous ochronosis) is a rare inherited metabolic disorder.
- It results from homogentisic acid oxidase deficiency, impairing tyrosine metabolism.
- Clinical manifestations include joint pain and characteristic pigmentation.
Observation:
- A 48-year-old man presented with severe cardiac failure.
- He had undiagnosed alkaptonuria, confirmed by urine mass spectrometry.
- Aortic stenosis was identified as a complication of ochronosis.
Findings:
- The case demonstrates a link between alkaptonuria and cardiovascular complications.
- Ochronosis, the deposition of ochronotic pigment, was found in cardiac tissue.
- The exact pathogenesis of cardiovascular ochronosis remains under investigation.
Implications:
- This case underscores the potential for severe, undiagnosed metabolic disorders to manifest with critical cardiac conditions.
- Early diagnosis and management of alkaptonuria may prevent or mitigate cardiovascular complications.
- Further research into the mechanisms of cardiovascular ochronosis is warranted.
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