Results 71 to 80 of about 353,576 (201)

Cardiovascular response estimated by ETCO2 after leg-raising test

open access: yesRevista Médica del Hospital General de México, 2017
The perioperative administration of fluids in critically ill patients is of particular interest to the anaesthetist, as a reduction in mortality rates and the harmful systemic effects of volume has been demonstrated, as long as they are administered in ...
L.A. Rosillo Meneses, O. Carrillo Torres
doaj   +1 more source

Assessment of poststress left ventricular ejection fraction by gated SPECT: comparison with equilibrium radionuclide angiocardiography [PDF]

open access: yes, 2010
PURPOSE: We compared left ventricular (LV) ejection fraction obtained by gated SPECT with that obtained by equilibrium radionuclide angiocardiography in a large cohort of patients.
ACAMPA, WANDA   +8 more
core  

Dexmedetomidine post-treatment attenuates cardiac ischaemia/reperfusion injury by inhibiting apoptosis through HIF-1α signalling. [PDF]

open access: yes, 2020
Hypoxia-inducible factor 1α (HIF-1α) plays a critical role in the apoptotic process during cardiac ischaemia/reperfusion (I/R) injury. This study aimed to investigate whether post-treatment with dexmedetomidine (DEX) could protect against I/R-induced ...
Chen, Wei-Rong   +8 more
core  

Multifractality in Human Heartbeat Dynamics

open access: yes, 1999
Recent evidence suggests that physiological signals under healthy conditions may have a fractal temporal structure. We investigate the possibility that time series generated by certain physiological control systems may be members of a special class of ...
A-L Barabasi   +29 more
core   +1 more source

Evidence linking exposure of fish primary macrophages to antibiotics activates the NF-kB pathway. [PDF]

open access: yes, 2020
Low doses of antibiotics are ubiquitous in the marine environment and may exert negative effects on non-target aquatic organisms. Using primary macrophages of common carp, we investigated the mechanisms of action following exposure to several common ...
Chen, Qiqing   +8 more
core  

Predicting cardiac frequencies in mammals

open access: yesScientific Reports
We develop a fluid mechanical model of the arterial tree in order to address the key question of what determines heart rate in mammals. We propose that the frequency of the pulsatile pressure gradient, which minimizes resistance to flow and facilitates ...
Rui D. M. Travasso   +3 more
doaj   +1 more source

Clinical Characteristics and Thoracic factors in patients with Idiopathic and Syndromic Scoliosis Associated with Pectus Excavatum

open access: yesSpine Surgery and Related Research, 2018
Introduction: The purpose of this study is to demonstrate the clinical characteristics and thoracic factors such as sternal tilt angle and Haller index in patients with idiopathic or syndromic scoliosis associated with pectus excavatum.
Ryoji Tauchi   +8 more
doaj   +1 more source

Evaluation of ventricular dyssynchrony in fetuses of diabetic mothers measured by the tissue Doppler indices: a case-control study

open access: yesThe Journal of Maternal-Fetal & Neonatal Medicine
Objective Maternal diabetes is the most common causes of hypertrophic cardiomyopathy, which significantly increases the risk of fetal heart dysfunction. In this study, we sought to evaluate the effect of overt maternal diabetes on fetal cardiac function ...
Mohammad Nasir Hematian   +8 more
doaj   +1 more source

Modulation of voltage-dependent sodium and potassium currents by charged amphiphiles in cardiac ventricular myocytes. Effects via modification of surface potential. [PDF]

open access: yes, 1993
Modulation of voltage-dependent sodium and potassium currents by charged amphiphiles was investigated in cardiac ventricular myocytes using the patch-clamp technique.
Ji, S, Langer, GA, Weiss, JN
core  

Metabolomic Profiling Reveals That Exercise Lowers Biomarkers of Cardiac Dysfunction in Rats with Type 2 Diabetes

open access: yesAntioxidants
The increasing prevalence of type 2 diabetes mellitus (T2DM) leads to significant global health challenges, including cardiac structural and functional deficits, which in severe cases can progress to heart failure that can further strain healthcare ...
Tutu Wang   +6 more
doaj   +1 more source

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