Skip Navigation

European Heart Journal 1981 2(1):13-19;
Copyright © 1981 by the European Society of Cardiology.
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by KOLEV, N.
Right arrow Articles by ROMODA, T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by KOLEV, N.
Right arrow Articles by ROMODA, T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© 1981, by The European Society Of Cardiology

The use of the first derivative of apex cardiogram and echocardiographic dimensions for assessing left verntircular fibre lengthening in cardiomyopathy

N. KOLEV*,, L. CSERHALMI{dagger}, J. PALIKT{dagger}, M. LENGYEL{dagger} and T. ROMODA{dagger}

*Medical Academy Higher Medical Institute, Department of Internal Medicine Varna, Bulgaria
{dagger}Hungarian Institute of Cardiology, Semmelweis University, Department of Cardiology Budapest, Hungary

Received 8 April 1980; revised 30 July 1980; .

Requests for reprints to:Dr N. Kolev, medical Academy, Higher Medical Institute, Department of Internal Medicine, 9002 Varna Bulgaria

Abstract

Eleven patients with hypertrophic obstructive cardiomyopathy (HOCM) and nine patients with congestive cardiomyopathy (COCM) were studied to determine the usefulness of relaxation time and mean velocity of circumferential fibre lengthening (VCFJ obtained from the first derivative of apex cardiogram and echocardiographic left ventricular dimensions. Twenty-two normal patients were ± investigated by echo and apex cardiography and served as controls. In HOCM both early apex cardiographic relaxation time interval (ERT) and total apex cardiographic relaxation time interval (TRT) were increased (ERT: 16 ±9 ms v. 5 ± 4 ms in controls, P<O.001; TRT: 127 ± 22 ms v. 94 ± 21 ms in controls, P<O.01) and VCFL was decreased (0.87 ± O.08 circs v. 1.21± O.09 circ/s for controls, P<0.02). In COCM both ERT and TRT were diminished (ERT: 1 ± 3.5 ms v.7±4 ms in controls, P<O001; TRT: 53 ± 14 ms v. 94 ± 21 ms for controls, P<O.01) and VCFL was decreased (0.69 ± 0.08 circ/s v. 1.21 ±0.09 circ/s in controls, P<O.01). There was a significant correlation between min dp/dt determined at catheterization and both ERT (r = O.86) and TRT (r=O.81).

These findings indicate that alterations in relaxation and mean velocity of circumferential fibre a lengthening take place in cardiomyopathy and they may be detected non-invasively by the first derivative of the apex cardiogram and the left ventricular echocardiogram.

Key Words: First derivative of apex cardiogram • cardiomyopathy • relaxation indices • mean velocity of circumferential fibre lengthening.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.