Results 41 to 50 of about 121,770 (258)

Preclinical Testing of Living Tissue-Engineered Heart Valves for Pediatric Patients, Challenges and Opportunities

open access: yesFrontiers in Cardiovascular Medicine, 2021
Introduction: Pediatric patients with cardiac congenital diseases require heart valve implants that can grow with their natural somatic increase in size. Current artificial valves perform poorly in children and cannot grow; thus, living-tissue-engineered
Ionela Movileanu   +28 more
doaj   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

Remoção cirúrgica de trombos em próteses valvulares mecânicas Surgical removal of thrombi in mechanical valvular prostheses

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
É relatada a retirada cirúrgica de trombos em próteses mecânicas em dois pacientes, manobra rara e inédita em nossa Instituição. O primeiro paciente, do sexo masculino, de 19 anos de idade, com história de doença reumática na infância, tendo sido ...
Pablo M. A Pomerantzeff   +9 more
doaj  

The choosing of optimal cell parameters of transcatheter aortic valve prosthesis [PDF]

open access: yesКомпьютерные исследования и моделирование, 2014
This paper presents the analysis of dependences between frame basic cell geometry parameters and function via finite element analysis. The simplified models of frame cell with varied strut width, thickness and quantity in a circle was researched to ...
Evgeny Andreevich Ovcharenko   +4 more
doaj   +1 more source

Meshalkin National Medical Research Center

open access: yesРоссийский кардиологический журнал, 2021
We present three cases of successful transatrial transcatheter valve-in-valve implantation in patients with bioprosthetic mitral valve dysfunction.
A. V. Bogachev-Prokofiev   +10 more
doaj   +1 more source

Peroxidase‐Mimicking Nanozymes for Rapid Detection of Infectious Diseases

open access: yesAdvanced Science, EarlyView.
Peroxidase‐mimicking nanozymes (PMNs) have emerged as robust and versatile materials for rapid infectious disease diagnostics. This review highlights the rational design and controlled synthesis of PMNs, summarizes key biomarkers relevant to infectious diseases, examines their integration into diverse rapid detection platforms, and highlights ...
Shikuan Shao   +5 more
wiley   +1 more source

Retroca valvular Replacement of heart valves prostheses

open access: yesBrazilian Journal of Cardiovascular Surgery, 1987
A reoperação de próteses valvulares tem sido realizada, com freqüência cada vez maior, nos vários Serviços de cirurgia cardíaca. Os detalhes do tratamento, a indicação e a técnica operatória melhoraram os resultados. No período de janeiro de 1984 a junho
Pablo M. A Pomerantzeff   +12 more
doaj  

Electropermanent Magnetic Muscles: Power‐Efficient, Low‐Voltage, Compact Magnetic Actuators to Power Wearables and Untethered Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents compact, low‐voltage actuators based on electropermanent magnetic interactions. The actuators show good overall performance across key metrics and are implemented in wearable devices and untethered robots. Their ability to operate in different configurations and hold positions without energy input highlights their potential for ...
Arturo Castillo Ugalde   +4 more
wiley   +1 more source

Reconstituição da valva pulmonar e via de saída do ventrículo direito, com prótese bivalvular e prótese tubular valvada de tronco pulmonar de porco: estudo experimental e aplicação clínica Pulmonary valve and right ventricular oulet tract reconstruction with biovalvular prostheses and valved tubular prostheses of the pig pulmonary artery: experimental study and clinical application

open access: yesBrazilian Journal of Cardiovascular Surgery, 1993
A obstrução da via de saída do ventrículo direito (VSVD) tem gerado muita polêmica em torno da técnica da sua correção cirúrgica, sendo a reconstituição ainda motivo de controvérsias.
Miguel A Maluf   +11 more
doaj  

Anticoagulation in pregnant women with mechanical heart valve prostheses [PDF]

open access: yesHeart, 1999
OBJECTIVE To evaluate the outcome of pregnancy in women with mechanical heart valve prostheses in relation to the anticoagulant treatment used in the first trimester and the incidence of thrombotic and bleeding complications.
S S, Meschengieser   +3 more
openaire   +2 more sources

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