Results 21 to 30 of about 180,423 (164)

Cardiac Adaptation to Prolonged High Altitude Migration Assessed by Speckle Tracking Echocardiography

open access: yesFrontiers in Cardiovascular Medicine, 2022
ObjectiveExposure to high altitudes represents physiological stress that leads to significant changes in cardiovascular properties. However, long-term cardiovascular adaptions to high altitude migration of lowlanders have not been described. Accordingly,
Xu Chen   +16 more
doaj   +1 more source

Implanted electrhydraulic artificial heart

open access: yesБюллетень сибирской медицины, 2010
The problem of full-featured, high-efficiency replacement of the heart’s pumping ability with an artificial analog is urgent all over the world. The most promising model of an implanted artificial heart is now the model with the elecrohydraulic principle
A. M. Shubladze   +3 more
doaj   +1 more source

Artificial heart transplants [PDF]

open access: yesBritish Medical Bulletin, 1997
The use of a mechanical device to support a failing heart is one of the greatest challenges in cardiothoracic practice. Many different approaches are being considered, but they share the use of many advanced engineering principles. Power supplies and the interface between artificial surfaces and the blood remain areas of difficulty.
openaire   +2 more sources

Four Artificial Heart Valves [PDF]

open access: yesNew England Journal of Medicine, 2005
A 67-year-old woman reported having progressive shortness of breath over several months, three years after undergoing aortic-valve replacement for aortic insufficiency. The patient had migraine headaches for which she had received 2 mg of ergotamine tartrate daily for many years. On physical examination, her blood pressure was 170/95 mm Hg.
Bijl, M., van den Brink, R.B.A.
openaire   +5 more sources

Natural Language Processing-Based Deep Learning to Predict the Loss of Consciousness Event Using Emergency Department Text Records

open access: yesApplied Sciences
The increasing adoption of electronic medical records (EMRs) presents a unique opportunity to enhance trauma care through data-driven insights.
Hang A. Park   +6 more
doaj   +1 more source

Aortic valve imaging using 18F-sodium fluoride: impact of triple motion correction

open access: yesEJNMMI Physics, 2022
Background Current 18F-NaF assessments of aortic valve microcalcification using 18F-NaF PET/CT are based on evaluations of end-diastolic or cardiac motion-corrected (ECG-MC) images, which are affected by both patient and respiratory motion.
Martin Lyngby Lassen   +10 more
doaj   +1 more source

A Fusion-Based Technique With Hybrid Swarm Algorithm and Deep Learning for Biosignal Classification

open access: yesFrontiers in Human Neuroscience, 2022
The vital data about the electrical activities of the brain are carried by the electroencephalography (EEG) signals. The recordings of the electrical activity of brain neurons in a rhythmic and spontaneous manner from the scalp surface are measured by ...
Sunil Kumar Prabhakar   +3 more
doaj   +1 more source

Computer vision in surgery: from potential to clinical value

open access: yesnpj Digital Medicine, 2022
Hundreds of millions of operations are performed worldwide each year, and the rising uptake in minimally invasive surgery has enabled fiber optic cameras and robots to become both important tools to conduct surgery and sensors from which to capture ...
Pietro Mascagni   +12 more
doaj   +1 more source

Acute and Sub-Chronic Exposure to Artificial Sweeteners at the Highest Environmentally Relevant Concentration Induce Less Cardiovascular Physiology Alterations in Zebrafish Larvae

open access: yesBiology, 2021
Artificial sweeteners are widely used food ingredients in beverages and drinks to lower calorie intake which in turn helps prevent lifestyle diseases such as obesity.
Ferry Saputra   +6 more
doaj   +1 more source

Ferroptosis and Autophagy-Related Genes in the Pathogenesis of Ischemic Cardiomyopathy

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundObesity plays an important role in type 2 diabetes mellitus (T2DM) and myocardial infarction (MI). Ferroptosis and ferritinophagy are related to metabolic pathways, such as fatty acid metabolism and mitochondrial respiration.
Yue Zheng   +32 more
doaj   +1 more source

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