Linked Life Data

7546791

Source:http://linkedlifedata.com/resource/pubmed/id/7546791

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1995-11-3
pubmed:abstractText
Two-dimensional echocardiography was used in 15 normal volunteers to assess left (LV) and right ventricular (RV) responses, as well as their interdependence, during the Valsalva maneuver. During the strain phase, LV and RV areas decreased progressively, the RV area decreasing more than the LV area. Immediately after strain release, the RV end-diastolic area increased suddenly and dramatically to 143.3% +/- 9.4% of its baseline value, whereas the LV end-diastolic area decreased further. This transiently overloaded right ventricle and associated septal shift changed LV shape and further reduced the LV cross-sectional area. Thus the resulting momentary drop in the stroke LV area may contribute, along with pulmonary blood pooling, to the abrupt systemic blood pressure drop characteristic of phase III seen in normal subjects. Real-time imaging with echocardiography during respiratory maneuvers is feasible for clinical use. Its application in patients with congestive heart failure might bring further understanding of LV and RV interrelationships in the failing heart.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0894-7317
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
536-42
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:articleTitle
Ventricular interdependence during Valsalva maneuver as seen by two-dimensional echocardiography: new insights about an old method.
pubmed:affiliation
Department of Medicine, Centre Hospitalier Universitaire Vaudois, Lausanne University Medical School, Lausanne, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't