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==Overview==
==Overview==
There is no pathognomonic finding on biopsy, although the majority of studies indicate that fibrosis is frequently present.


==Findings on Biopsy==
==Histologic Differences Between Isolated Noncompaction Cardiomyopathy and that Associated with Congenital Heart Disease==
Among patients with isolated noncompaction, the deep intertrabecular recesses communicate with only the left ventricular cavity.  In contrast, among patients with noncompaction associated with other congenital heart diseases,                        the deep intertrabecular recesses communicate with both the left ventricular cavity and the coronary circulation.
 
==Findings on Biopsy==
*Interstitial [[fibrosis]] was observed in 5/5 patients with isolated noncompaction cardiomyopathy who underwent [[right ventricular biopsy]]<ref>
*Interstitial [[fibrosis]] was observed in 5/5 patients with isolated noncompaction cardiomyopathy who underwent [[right ventricular biopsy]]<ref>
Hamamichi  Y,  Ichida  F,  Hashimoto  I, et al.  Isolated noncompaction of the ventricular myocardium:  ultrafast computer tomography and magnetic resonance imaging. Int J Cardiovasc Imaging.  2001;  17:  305–314.</ref>
Hamamichi  Y,  Ichida  F,  Hashimoto  I, et al.  Isolated noncompaction of the ventricular myocardium:  ultrafast computer tomography and magnetic resonance imaging. Int J Cardiovasc Imaging.  2001;  17:  305–314.</ref>

Revision as of 13:51, 6 August 2011

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

There is no pathognomonic finding on biopsy, although the majority of studies indicate that fibrosis is frequently present.

Histologic Differences Between Isolated Noncompaction Cardiomyopathy and that Associated with Congenital Heart Disease

Among patients with isolated noncompaction, the deep intertrabecular recesses communicate with only the left ventricular cavity. In contrast, among patients with noncompaction associated with other congenital heart diseases, the deep intertrabecular recesses communicate with both the left ventricular cavity and the coronary circulation.

==Findings on Biopsy==

References

  1. Hamamichi Y, Ichida F, Hashimoto I, et al. Isolated noncompaction of the ventricular myocardium: ultrafast computer tomography and magnetic resonance imaging. Int J Cardiovasc Imaging. 2001; 17: 305–314.
  2. Oechslin EN, Attenhofer Jost CH, Rojas JR, et al. Long-term follow-up of 34 adults with isolated left ventricular noncompaction: a distinct cardiomyopathy with poor prognosis. J Am Coll Cardiol. 2000; 36: 493–500.
  3. Finsterer J, Stollberger C, Feichtinger H. Histological appearance of left ventricular hypertrabeculation/noncompaction. Cardiology. 2002; 98: 162–164.


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