Matches in SemOpenAlex for { <https://semopenalex.org/work/W2094920763> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2094920763 endingPage "431" @default.
- W2094920763 startingPage "419" @default.
- W2094920763 abstract "Direct correlation of externally measured systolic time intervals with internally measured indices was obtained using catheter-tip micromanometers in six patients who had normal coronary arteriograms. Simultaneous recordings were made of central aorta and left ventricular pressure, maximum rate of rise in left ventricular pressure (dp/dt), external carotid pulse, external and internal sound, and electrocardiogram. Acute interventions were used to vary the indices by a variety of mechanisms including changes in contractility, preload, afterload, and heart rate. The initial values and the changes in these values produced by acute interventions are identical for left ventricular ejection time (LVET) whether measured externally (range 175 to 385 msec) or internally (range 169 to 392), r = 0.99. Although the absolute values differed for internally measured isovolumic contraction time (internal ICT), externally measured ICT, and preejection time (PEP), there was good linear correlation between the changes observed in these values following the interventions. Changes in PEP and internal ICT showed excellent linear correlation (r = 0.94) and were also alike in absolute value following the interventions. The interval from the Q wave of the electrocardiogram to rise in left ventricular pressure (electrical-mechanical delay) did not change significantly during these interventions. During a period of spontaneous isorhythmic dissociation there was close tracking between beat-to-beat changes in PEP and internal ICT and between externally and internally measured LVET. Following acute interventions PEP and left ventricular dp/dt changed inversely. Externally measured systolic time intervals have therefore been shown in man to correlate well with directly measured internal indices, both in steady-state conditions and during a series of acute interventions. This convenient and atraumatic method has been shown to be a valid and sensitive measure of myocardial performance." @default.
- W2094920763 created "2016-06-24" @default.
- W2094920763 creator A5014836320 @default.
- W2094920763 creator A5048058105 @default.
- W2094920763 creator A5066185737 @default.
- W2094920763 creator A5075080164 @default.
- W2094920763 creator A5090579073 @default.
- W2094920763 date "1971-09-01" @default.
- W2094920763 modified "2023-09-26" @default.
- W2094920763 title "Direct Correlation of External Systolic Time Intervals with Internal Indices of Left Ventricular Function in Man" @default.
- W2094920763 cites W1482536944 @default.
- W2094920763 cites W190441648 @default.
- W2094920763 cites W1976296963 @default.
- W2094920763 cites W1979710605 @default.
- W2094920763 cites W1991759728 @default.
- W2094920763 cites W1993400189 @default.
- W2094920763 cites W2002628173 @default.
- W2094920763 cites W2011091791 @default.
- W2094920763 cites W2020303123 @default.
- W2094920763 cites W2032605459 @default.
- W2094920763 cites W2081699902 @default.
- W2094920763 cites W2083847661 @default.
- W2094920763 cites W2157950139 @default.
- W2094920763 cites W2169095784 @default.
- W2094920763 cites W2268959684 @default.
- W2094920763 cites W2327065050 @default.
- W2094920763 cites W2607137667 @default.
- W2094920763 cites W2625904589 @default.
- W2094920763 cites W3192569039 @default.
- W2094920763 doi "https://doi.org/10.1161/01.cir.44.3.419" @default.
- W2094920763 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/5097444" @default.
- W2094920763 hasPublicationYear "1971" @default.
- W2094920763 type Work @default.
- W2094920763 sameAs 2094920763 @default.
- W2094920763 citedByCount "181" @default.
- W2094920763 countsByYear W20949207632013 @default.
- W2094920763 countsByYear W20949207632014 @default.
- W2094920763 countsByYear W20949207632016 @default.
- W2094920763 countsByYear W20949207632017 @default.
- W2094920763 countsByYear W20949207632018 @default.
- W2094920763 countsByYear W20949207632020 @default.
- W2094920763 countsByYear W20949207632021 @default.
- W2094920763 crossrefType "journal-article" @default.
- W2094920763 hasAuthorship W2094920763A5014836320 @default.
- W2094920763 hasAuthorship W2094920763A5048058105 @default.
- W2094920763 hasAuthorship W2094920763A5066185737 @default.
- W2094920763 hasAuthorship W2094920763A5075080164 @default.
- W2094920763 hasAuthorship W2094920763A5090579073 @default.
- W2094920763 hasBestOaLocation W20949207631 @default.
- W2094920763 hasConcept C123576724 @default.
- W2094920763 hasConcept C126322002 @default.
- W2094920763 hasConcept C164705383 @default.
- W2094920763 hasConcept C178853913 @default.
- W2094920763 hasConcept C2777953023 @default.
- W2094920763 hasConcept C39133596 @default.
- W2094920763 hasConcept C48277249 @default.
- W2094920763 hasConcept C71924100 @default.
- W2094920763 hasConcept C84393581 @default.
- W2094920763 hasConceptScore W2094920763C123576724 @default.
- W2094920763 hasConceptScore W2094920763C126322002 @default.
- W2094920763 hasConceptScore W2094920763C164705383 @default.
- W2094920763 hasConceptScore W2094920763C178853913 @default.
- W2094920763 hasConceptScore W2094920763C2777953023 @default.
- W2094920763 hasConceptScore W2094920763C39133596 @default.
- W2094920763 hasConceptScore W2094920763C48277249 @default.
- W2094920763 hasConceptScore W2094920763C71924100 @default.
- W2094920763 hasConceptScore W2094920763C84393581 @default.
- W2094920763 hasIssue "3" @default.
- W2094920763 hasLocation W20949207631 @default.
- W2094920763 hasLocation W20949207632 @default.
- W2094920763 hasOpenAccess W2094920763 @default.
- W2094920763 hasPrimaryLocation W20949207631 @default.
- W2094920763 hasRelatedWork W191471520 @default.
- W2094920763 hasRelatedWork W1975104654 @default.
- W2094920763 hasRelatedWork W2047283940 @default.
- W2094920763 hasRelatedWork W2052133574 @default.
- W2094920763 hasRelatedWork W2062049070 @default.
- W2094920763 hasRelatedWork W2067890185 @default.
- W2094920763 hasRelatedWork W2395808930 @default.
- W2094920763 hasRelatedWork W2434670409 @default.
- W2094920763 hasRelatedWork W2463631751 @default.
- W2094920763 hasRelatedWork W4235850475 @default.
- W2094920763 hasVolume "44" @default.
- W2094920763 isParatext "false" @default.
- W2094920763 isRetracted "false" @default.
- W2094920763 magId "2094920763" @default.
- W2094920763 workType "article" @default.