Document Detail


Cardiomyocyte size estimated from noninvasive measurements of left ventricular wall thickness and chamber diameter.
MedLine Citation:
PMID:  22417735     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Noninvasive measurements of left ventricular wall thickness (LVT) and left ventricular chamber diameter (LVD) allow calculation of expected left ventricular weight (LVW), but not of myocyte breadth (MyB), so that specification of left ventricular hypertrophy (LVH) is not optimal. Hypertrophied hearts, excluding coronary heart disease, and comparison specimens without hypertrophy were compiled into a series of 78 forensic autopsies, wherein LVT, LVD, and LVW were measured. MyB was measured in hematoxylin and eosin-stained paraffin sections. A series of clinical cases tabulating LVD and LVT was assembled from readily available publications. From postmortem data, a regression equation was derived to predict MyB from LVD and LVT. Applying this equation to the clinical data produced a scatter plot closely resembling that in the postmortem dataset. The equation derived here appears to provide valid predictions of cardiomyocyte sizes expected in histological measurements. The finding is the first of its kind and requires further testing for validation or rejection. This is offered as a provisional way to improve the determination of LVH using noninvasive measurements. How this improvement might enhance understanding of the mechanisms for hypertrophy is briefly explored, thus generating working hypotheses.
Authors:
Richard E Tracy
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-13
Journal Detail:
Title:  Journal of the American Society of Hypertension : JASH     Volume:  -     ISSN:  1878-7436     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101312518     Medline TA:  J Am Soc Hypertens     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 American Society of Hypertension. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Pathology, Louisiana State University Health Sciences Center, New Orleans, LA, USA.
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