Results 241 to 250 of about 70,302 (358)

The Anrep effect in septic shock: a mechanism of cardiac adaptation. [PDF]

Br J Anaesth
Sequeira V, Maack C, Reil GH, Reil JC.
europepmc   +1 more source

Active cross-bridge model Reproduction of the myocardial force-length-time relation and the left ventricular pressure-length-time relation in systole.

, 1990
Kouichi Takeda
openalex   +2 more sources

Exercise echocardiography for improved assessment of diastolic filling dynamics

Experimental Physiology, EarlyView.
Abstract During exercise stress, heart rate (HR) increases to support cardiac output, which also reduces ventricular filling time. Although echocardiography is widely used to assess cardiac function, studies display conflicting data on the dynamic changes in the healthy trained and untrained heart during rest and acute exercise stress. To address these
Mads Fischer, Thomas Bonne, Magnus Bak Klaris, Emil Lenzing, Eric J. Stöhr, Jacob Bejder, Carsten Lundby, Nikolai B. Nordsborg, Lars Nybo   +8 more
wiley   +1 more source

Noninvasive assessment of myocardial perfusion using ultrafast ultrasound: clinical study for congenital heart disease. [PDF]

Eur Heart J Imaging Methods Pract
Nguyen MB, Zhang N, Mertens LL, Barron D, Honjo O, Venet M, Baranger J, Villemain O.   +7 more
europepmc   +1 more source

Stenosis of the Renal Artery: Assessment of Slowed Systole in the Downstream Circulation with Doppler Sonography

, 1992

openalex   +1 more source

Cardiac conduction system and the electrocardiogram of the common hippopotamus (Hippopotamus amphibius)

Experimental Physiology, EarlyView.
Abstract The common hippopotamus (Hippopotamus amphibius) shares a common terrestrial ancestor with whales (Cetacea) and has independently evolved similar physiological adaptations to their aquatic lifestyle. Although several studies have explored the electrical signalling in whale hearts, the understanding of the conduction system and electrical ...
Morten B. Thomsen, Peter Agger, Henrik Lauridsen, Vibeke Sødring Elbrønd, Camilla Rensch Davidsen, Emma Smedsgaard Byskov, Frederik Stig Scharling, Tobias Wang, Sara Andreia Rodrigues Abreu, Stamatios Alan Tahas, Carsten Grøndahl, Mads Frost Bertelsen, Kirstine Calloe   +12 more
wiley   +1 more source

A Different Scintigraphic Perspective on the Systolic Function of the Left Ventricle-1. [PDF]

Mol Imaging Radionucl Ther
Karaçalıoğlu AÖ.
europepmc   +1 more source

2C34 Mechanical Evaluation of Myocardial Wall Motion during Systole in Left Ventricular Long-axis Image

, 2001
Tadashi INABA, Masataka TOKUDA, Yutaka Sawaki, Hideaki Obata, Shingo Kawasaki, Yasutomi Kinosada   +5 more
openalex   +2 more sources

Quantitative whole-heart three-dimensional magnetic resonance myocardial perfusion imaging in systole and diastole at 3.0T [PDF]

, 2013
Manish Motwani, Ananth Kidambi, Timothy Fairbairn, Akhlaque Uddin, Sebastian Kozerke, Steven Sourbron, John P. Greenwood, Sven Plein   +7 more
openalex   +1 more source

Limited matching of the cardiac output response to the peripheral demand of heat stress and exercise

Experimental Physiology, EarlyView.
Abstract It is widely accepted that cardiac output matches the prevailing peripheral demand in healthy humans. However, it remains unknown whether stroke volume and heart rate are regulated interdependently to arrive at a specific cardiac output. The aim of this study was to determine whether the healthy human heart responds specifically according to ...
Moritz Lampkemeyer, Jonas Kell, Veit Börß, Tobias Claussen, Fabian Spahiu, Michelle Ottlik, Lars C. Helbig, Craig G. Crandall, Eric J. Stöhr   +8 more
wiley   +1 more source