| Systolic time intervals and heart sounds in left bundle branch block. | |
| | |
MedLine Citation:
|
PMID: 1078320 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Systolic time intervals and heart sounds were studied in twenty patients with left bundle branch block. A definite cause for the organic heart disease was not ascertained. Abnormal duration of the electromechanical systole (Q-A2), due to a prolongation both of the preejection period (PEP) and of the Q-M1 intervals, was found to exist in all. Prolongation of Q-M1 was due to lengthening either of the electromechanical interval (EMI) or of the pre-isovolumetric contraction time (PICT). Isovolumetric contraction time (ICT) was prolonged in thirteen patients only. There was a good correlation between LVET/ICT ratio and the duration of ICT intervals. Six patients showed a first heart sound of normal intensity and duration. There was no correlation between the duration of the systolic time intervals and the characteristics of the first and second heart sounds. |
| | |
Authors:
|
E Macieira-Coelho; A Lema-Santos; H B Machado; L L Faleiro |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Angiology Volume: 27 ISSN: 0003-3197 ISO Abbreviation: Angiology Publication Date: 1976 Jul-Aug |
Date Detail:
|
Created Date: 1988-04-18 Completed Date: 1988-04-18 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0203706 Medline TA: Angiology Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 447-54 Citation Subset: IM |
Affiliation:
|
Department of Therapeutics, Hospital de Santa Maria, Lisbon, Portugal. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Aged, 80 and over Bundle-Branch Block / physiopathology* Electrocardiography Heart Auscultation* Heart Sounds* Humans Kinetocardiography Middle Aged Myocardial Contraction* Phonocardiography Stroke Volume Systole* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Stabilized venous distensibility of normotensive and hypertensive humans on high and low sodium inta...
Next Document: Prolonged atrial standstill.