Document Detail

Effect of respiration on echocardiographic ventricular dimensions and relationship to the second heart sound.
MedLine Citation:
PMID:  477705     Owner:  NLM     Status:  MEDLINE    
The effects of normal respiration on echocardiographic right and left ventricular dimensions were studied in 8 normal subjects (group 1) and in 10 patients with ventricular volume overload due to anaemia (group 2). Right ventricular internal diameter (RVID) increased on inspiration in both groups of patients (group 1, 0.3 +/- 0.1 cm; group 2, 0.6 +/- 0.4 cm), while left ventricular internal diameter (LVID) decreased (group 1, 0.3 +/- 0.2 cm; group 2, 0.4 +/- 0.3 cm). The changes in echocardiographic diameter were related to the duration of electromechanical systole and to the changes in the splitting of the second heart sound; there was a linear relationship between RVID and Q--P2 (P less than 0.001) and A2--P2 (P less than 0.001). Echocardiographic measurements of cardiac chamber size should take into account the changes which occur during respiration.
B S Lewis; N Lewis; M S Gotsman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of cardiology     Volume:  10     ISSN:  0301-4711     ISO Abbreviation:  Eur J Cardiol     Publication Date:  1979 Aug 
Date Detail:
Created Date:  1979-11-29     Completed Date:  1979-11-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0404054     Medline TA:  Eur J Cardiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  89-99     Citation Subset:  IM    
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MeSH Terms
Anemia, Hemolytic / complications
Cardiac Volume*
Echocardiography / instrumentation,  methods*
Heart Auscultation*
Heart Diseases / diagnosis,  etiology
Heart Sounds*
Ventricular Function

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