Document Detail


Regression of myocardial hypertrophy: electrocardiographic-echocardiographic correlations after aortic valve replacement in patients with chronic aortic regurgitation.
MedLine Citation:
PMID:  6210459     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Serial electrocardiographic and echocardiographic left ventricular (LV) studies were performed in 21 patients before and after aortic valve replacement (AVR) for chronic aortic regurgitation. Changes in voltage (SV1 + RV5-6) after AVR were assessed and evaluated relative to changes in LV mass. Muscle cross-sectional area (CSA) derived from echocardiographic dimension and wall thickness data was used as an index of LV muscle mass (LV hypertrophy greater than 10 cm2/m2). In 15 patients, voltage was reduced after AVR: Seven had normal voltage (48 +/- 17 mm to 25 +/- 6 mm, p less than 0.005) and eight still had increased voltage (61 +/- 17 mm to 40 +/- 4 mm, p less than 0.01). Patients with normal voltage had complete regression of hypertrophy by echocardiography (CSA decreased from 13 +/- 3 cm2/m2 to 9 +/- 1 cm2/m2, p less than 0.025), while those who had persistently increased voltage had incomplete regression (15 +/- 2 cm2/m2, p less than 0.001). Reduction in voltage generally occurred in the first 6 months after AVR. Three patients with unchanged voltage had evidence of paraprosthetic regurgitation and minimal change in CSA. Three other patients with voltage had evidence of paraprosthetic regurgitation and minimal change in CSA. Three other patients with persistent LV enlargement without paraprosthetic regurgitation had a severe intraventricular conduction delay. Data from 59 electrocardiographic-echocardiographic studies before and after AVR revealed a strong correlation (r = 0.81) between voltage and muscle CSA. After surgical correction of chronic aortic regurgitation, regression of LV hypertrophy can be assessed by serial electrocardiographic studies. These ECG data identify patients with complete, incomplete or no regression of LV hypertrophy.
Authors:
J D Carroll; W H Gaasch; S Naimi; H J Levine
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Circulation     Volume:  65     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1982 May 
Date Detail:
Created Date:  1982-07-22     Completed Date:  1982-07-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  980-7     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Aortic Valve / surgery*
Aortic Valve Insufficiency / physiopathology*,  surgery
Cardiomegaly / physiopathology*
Chronic Disease
Echocardiography*
Electrocardiography*
Heart Valve Prosthesis
Humans
Remission, Spontaneous

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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