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hypertrophic cardiomyopathy

Wednesday 16 July 2003

Hypertrophic cardiomyopathies are due to primary defects in sarcomerci function by mutations of genes coding for sarcomeric proteins composing the cardiac sarcomere.

Images

- Hypertrophic cardiomyopathy: Asymmetrical septal hypertrophy and microscopic disarray -

- Toluidine blue highlighting myocyte disarray in hypertrophic cardiomyopathy.

Synopsis

- asymmetrical septal hypertrophy
- microscopic disarray

Classification

- early-onset hypertrophic cardiomyopathy, infantile hypertrophic cardiomyopathy

Etiology

- mutations or variants of genes MYH7 , TNNT2 , MYBPC3 , TNNI3 , TPM1 , ACTC , MYL3 , MYL2 , LAMP2 , PRKAG2 , GLA , CAV3 , MTTG , MTTI , MTTK , TTR , TNNC1

- COX15 deficiency

Gene testing

- genedx.com

See also

- cardiomyopathies
- dilated cardiomyopathy

References

- Nishimura RA, Holmes DR Jr. Clinical practice. Hypertrophic obstructive cardiomyopathy. N Engl J Med. 2004 Mar 25;350(13):1320-7. PMID: 15044643

- Ashrafian H, Redwood C, Blair E, Watkins H. Hypertrophic cardiomyopathy:a paradigm for myocardial energy depletion.
Trends Genet. 2003 May;19(5):263-8. PMID: 12711218

- Arad M, Seidman JG, Seidman CE. Phenotypic diversity in hypertrophic cardiomyopathy. Hum Mol Genet. 2002 Oct 1;11(20):2499-506. PMID: 12351586