CARDIOLOGY

Embryo Circulation

May 1, 2020 by in CARDIOLOGY Comments Off on Embryo Circulation

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   Whoever says that the heart as a pump drives the circulation, does not consider that this so-called pump itself…

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Patterns in the Early Embryo Circulation

May 1, 2020 by in CARDIOLOGY Comments Off on Patterns in the Early Embryo Circulation

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   Vortices are the sinews and muscles of fluid motions. Dietrich Küchemann (1965) KeywordsIntracardiac flowsChick embryoZebrafish embryoLaminar flowVortex flowHeart vortexVentricular…

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of the Early Embryo Circulation

May 1, 2020 by in CARDIOLOGY Comments Off on of the Early Embryo Circulation

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsEarly embryo hemodynamics in chickZebrafishMouseHuman, vitelline artery pressureVentricular pressureCardiac outputTissue metabolic demandsPeripheral heartsPlacental circulationAcardiac twinTRAP (twin-reversed arterial perfusion) Development…

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Aspect of the Rhythmical System

May 1, 2020 by in CARDIOLOGY Comments Off on Aspect of the Rhythmical System

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsBiogenetic lawCongenital heart abnormalitiesGenetic screensHeart fieldHistomeresFunctional systemsFunctional threefoldnessNerve-sense systemRhythmic systemMetabolic systemThreefold cardiovascular system The idea that the development of…

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Ventricle Physiology

May 1, 2020 by in CARDIOLOGY Comments Off on Ventricle Physiology

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   In whatsoever creature there is lungs, there is likewise in them two ventricles, the right and the left. William…

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Heart as a Generator of Pressure

May 1, 2020 by in CARDIOLOGY Comments Off on Heart as a Generator of Pressure

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsRhythmic generation of pressureConstriction of conotruncusVitelline artery ligationSpongy myocardiumEmbryo arterial pressure We have seen that while traversing the heart…

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Effects of Aortic Occlusion

May 1, 2020 by in CARDIOLOGY Comments Off on Effects of Aortic Occlusion

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsAortic occlusionCardiac output during aortic occlusionThe role of venous reservoir and of peripheral circulationHemodynamics of aortic occlusionCardiac effects of…

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Integrative Model of Circulation: A Synthesis

May 1, 2020 by in CARDIOLOGY Comments Off on Integrative Model of Circulation: A Synthesis

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   The great tragedy of science—the slaying of a beautiful hypothesis by an ugly fact. Thomas Huxley (1870) It is…

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Embryo Heart is Not a Peristaltic Pump

May 1, 2020 by in CARDIOLOGY Comments Off on Embryo Heart is Not a Peristaltic Pump

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsPeristaltic pumpValveless embryo heartCardiac jellyLiebau pump principleDynamic suction pumpContraction waveBlood flow reversalEjection fraction Rhythmical contractions of the embryonic heart…

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Perturbation Experiments

May 1, 2020 by in CARDIOLOGY Comments Off on Perturbation Experiments

(1) Professor of Anesthesiology, Albany Medical College, Albany, NY, USA   KeywordsEmbryo heartFlow perturbationMicrospheresVitelline vein ligationCardiac morphogenesisPeripheral circulation On account of relative ease of accessibility, the early embryo circulation is…

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