Matches in SemOpenAlex for { <https://semopenalex.org/work/W173890237> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W173890237 endingPage "H2553" @default.
- W173890237 startingPage "H2542" @default.
- W173890237 abstract "We analyzed patterns of left ventricular perfusion in arrested hearts without coronary tone and in the same hearts while beating with and without coronary tone. We used microspheres in anesthetized dogs to measure blood flow in 384 regions (averaging 140 mg wet wt) from the subendocardium, midwall, and subepicardium before and during intracoronary infusions of adenosine (beating without tone) or lidocaine and adenosine (arrest without tone). Mean coronary pressure was held constant at 80 mmHg. Changes in regional flow with arrest (vs. beating without tone) were surprisingly variable (range -28 to +124%) and exhibited substantial within-layer heterogeneity, suggesting that local differences in contractility, stresses, or strains limit maximum coronary flow. Regional flows in beating hearts with tone did not correlate with flows in the same hearts without tone, beating or not (r2 < or = 0.03; not significant). Flow patterns during beating with tone also demonstrated significantly shorter (i.e., the distance at which autocorrelation has decreased to 0.5) within-layer spatial autocorrelations as well as a complete loss of radial flow correlation (e.g., between corresponding subendocardial and subepicardial regions; r2 = 0.01). Thus neither coronary anatomy (assessed during arrest without tone) nor the mechanical effects of contraction (beating without tone) appear to influence myocardial perfusion when vasomotor tone is present." @default.
- W173890237 created "2016-06-24" @default.
- W173890237 creator A5018349633 @default.
- W173890237 creator A5057388417 @default.
- W173890237 creator A5062667224 @default.
- W173890237 creator A5078154139 @default.
- W173890237 date "1994-06-01" @default.
- W173890237 modified "2023-09-27" @default.
- W173890237 title "Influence of cardiac contraction and coronary vasomotor tone on regional myocardial blood flow" @default.
- W173890237 doi "https://doi.org/10.1152/ajpheart.1994.266.6.h2542" @default.
- W173890237 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/8024017" @default.
- W173890237 hasPublicationYear "1994" @default.
- W173890237 type Work @default.
- W173890237 sameAs 173890237 @default.
- W173890237 citedByCount "52" @default.
- W173890237 countsByYear W1738902372012 @default.
- W173890237 countsByYear W1738902372014 @default.
- W173890237 countsByYear W1738902372015 @default.
- W173890237 countsByYear W1738902372016 @default.
- W173890237 countsByYear W1738902372017 @default.
- W173890237 countsByYear W1738902372018 @default.
- W173890237 countsByYear W1738902372019 @default.
- W173890237 countsByYear W1738902372020 @default.
- W173890237 crossrefType "journal-article" @default.
- W173890237 hasAuthorship W173890237A5018349633 @default.
- W173890237 hasAuthorship W173890237A5057388417 @default.
- W173890237 hasAuthorship W173890237A5062667224 @default.
- W173890237 hasAuthorship W173890237A5078154139 @default.
- W173890237 hasConcept C126322002 @default.
- W173890237 hasConcept C146957229 @default.
- W173890237 hasConcept C158846371 @default.
- W173890237 hasConcept C163415756 @default.
- W173890237 hasConcept C164705383 @default.
- W173890237 hasConcept C2776157398 @default.
- W173890237 hasConcept C2776991684 @default.
- W173890237 hasConcept C2777055891 @default.
- W173890237 hasConcept C2777862461 @default.
- W173890237 hasConcept C2778165595 @default.
- W173890237 hasConcept C39133596 @default.
- W173890237 hasConcept C42219234 @default.
- W173890237 hasConcept C71924100 @default.
- W173890237 hasConcept C85378888 @default.
- W173890237 hasConcept C99398487 @default.
- W173890237 hasConceptScore W173890237C126322002 @default.
- W173890237 hasConceptScore W173890237C146957229 @default.
- W173890237 hasConceptScore W173890237C158846371 @default.
- W173890237 hasConceptScore W173890237C163415756 @default.
- W173890237 hasConceptScore W173890237C164705383 @default.
- W173890237 hasConceptScore W173890237C2776157398 @default.
- W173890237 hasConceptScore W173890237C2776991684 @default.
- W173890237 hasConceptScore W173890237C2777055891 @default.
- W173890237 hasConceptScore W173890237C2777862461 @default.
- W173890237 hasConceptScore W173890237C2778165595 @default.
- W173890237 hasConceptScore W173890237C39133596 @default.
- W173890237 hasConceptScore W173890237C42219234 @default.
- W173890237 hasConceptScore W173890237C71924100 @default.
- W173890237 hasConceptScore W173890237C85378888 @default.
- W173890237 hasConceptScore W173890237C99398487 @default.
- W173890237 hasIssue "6" @default.
- W173890237 hasLocation W1738902371 @default.
- W173890237 hasLocation W1738902372 @default.
- W173890237 hasOpenAccess W173890237 @default.
- W173890237 hasPrimaryLocation W1738902371 @default.
- W173890237 hasRelatedWork W2026934437 @default.
- W173890237 hasRelatedWork W2042178904 @default.
- W173890237 hasRelatedWork W2066503353 @default.
- W173890237 hasRelatedWork W2110923087 @default.
- W173890237 hasRelatedWork W2147953800 @default.
- W173890237 hasRelatedWork W2223519467 @default.
- W173890237 hasRelatedWork W2380850897 @default.
- W173890237 hasRelatedWork W2427951778 @default.
- W173890237 hasRelatedWork W3006787741 @default.
- W173890237 hasRelatedWork W2948637529 @default.
- W173890237 hasVolume "266" @default.
- W173890237 isParatext "false" @default.
- W173890237 isRetracted "false" @default.
- W173890237 magId "173890237" @default.
- W173890237 workType "article" @default.