Results 1 to 10 of about 94,554 (320)
Cardiology Plus, 2021 The four heart valves are arranged in different planes from each other. The aortic valve is most centrally located being related to all four cardiac chambers.
Siew Yen Ho
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On the valves of the heart [PDF]
Abstracts of the Papers Communicated to the Royal Society of LondonThe paper contains observations upon the structure and connections of the auriculo-ventricular and arterial valves of the human heart, which the author thinks will assist in explaining their nature and functions. The relation of the “four orifices” in the base of the heart is examined, and it is shown that the aortic and left auriculo-ventricular ...
William S. Savory
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Frontiers in Cardiovascular Medicine, 2021 Atrioventricular regurgitation is frequent in the setting of heart failure. It is due to atrial and ventricular remodelling, as well as rhythmic disturbances and loss of synchrony.
Anne-Céline Martin +17 more
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Emergency TAVI in a critically ill patient: A case report
Clinical Case Reports, 2021 Transcatheter aortic valve implantation is a safe procedure even in inoperable patients with multi‐organ failure and cardiogenic shock. In such cases, the heart team should be prepared to proceed to emergent implantation for timely and successful ...
Konstantinos Papadopoulos +5 more
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A small footprint couch‐top support device for image‐guided radiotherapy of heavy patients
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose Patients with body weights close to or above 400 lbs present unique challenges in radiation therapy since the weight limit of most treatment couches decreases as the couch‐top extends toward the treatment gantry. The purpose of this work was to develop a small footprint couch‐top support platform to safely perform image‐guided ...
Huixiao Chen +5 more
wiley +1 more source
Advanced Functional Materials, Volume 32, Issue 52, December 22, 2022., 2022 Capsules of the biopolymer alginate cross‐linked by cations like Ca2+ or Cu2+ are shown to be electroresponsive: when a direct current field is applied around them, they swell and burst. The phenomenon arises because the field induces cations to electrophoretically migrate out of the capsules.
Ankit Gargava +2 more
wiley +1 more source
Advanced Healthcare Materials, Volume 11, Issue 24, December 21, 2022., 2022 A biomanufacturing framework achieving personalized and volumetric lab‐grown tissue through additive manufacturing, multiscale computational fluid dynamics, and long‐term perfusion bioreactor cultivation is presented. This framework can be applied to diverse defect shapes, 3D printed scaffold patterns, and bioreactor perfusion strategies to minimize ...
David P Forrestal +4 more
wiley +1 more source
Advanced Healthcare Materials, Volume 11, Issue 24, December 21, 2022., 2022 Multi‐modal imaging techniques unravel the orientation of collagen fibers connecting different regions of the aortic heart valve, which is used to inspire novel design methods for melt electrowritten scaffolds. Biomimetic scaffolds exhibit continuous interfaces, gradient porosities, region‐specific layer numbers, and tailored fiber orientations in a ...
Michael J. Vernon +10 more
wiley +1 more source
Totally Organic Hydrogel‐Based Self‐Closing Cuff Electrode for Vagus Nerve Stimulation
Advanced Healthcare Materials, Volume 11, Issue 23, December 7, 2022., 2022 A cuff‐type electrode, which is spontaneously wrapped around a nerve bundle, is developed by embedding a conducting polymer‐based film into a curled polyvinyl alcohol hydrogel. The stability of the immobilization is examined while the pressure applied to the nerve is at a harmless level. The totally organic nature of the present cuff electrode promises
Daigo Terutsuki +7 more
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Circulation, 2011 A 55-year-old invasive/clinical cardiologist worked full time, exercised regularly, and was asymptomatic. Two weeks previously, he had new onset of angina on exertion. Echocardiography/Doppler and cardiac catheterization confirmed the clinical assessment of severe aortic stenosis with a valve area of 0.5 cm2/m2.
Shahbudin H. Rahimtoola, Grace Huang
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