Aortic Stenosis Model
Aortic Stenosis Model - Related Videos
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A Minimally Invasive Model of Aortic Stenosis in Swine
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This protocol describes a minimally invasive surgical procedure for ascending aortic banding in swine.
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A Rabbit Aortic Valve Stenosis Model Induced by Direct Balloon Injury
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An appropriate animal model is needed to understand the pathologic mechanisms underlying aortic valve stenosis (AVS) and to evaluate the efficacy of therapeutic interventions. The present protocol describes a new procedure for developing the AVS rabbit model via a direct balloon injury in vivo.
08:51
A New Murine Model of Endovascular Aortic Aneurysm Repair
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Cited by 4 •
2013
Histological and biochemical modifications after aneurysm endograft exclusion are still unclear. We describe a new model of endograft implantation on a murine aneurysm. Through thrombus analysis with and without persistant circulating blood stream interface, and new endovascular biomaterials evaluation, this model will help to better understand endovascular aneurysm exclusion pathobiology.
04:53
Surgical Management of Meatal Stenosis with Meatoplasty
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Cited by 13 •
2010
Meatoplasty, surgical management of meatal stenosis.
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Cited by 4 •
2017
Full-root aortic valve replacement by stentless aortic xenograft is a viable option in patients with small aortic roots. We describe, a technique for the full-root implantation of stentless aortic xenografts, with emphasis on the management of the proximal suture line and coronary anastomoses, and discuss its limitations and alternative options.
FAQs
The model links a smaller valve opening with greater resistance to forward flow from the left ventricle. That increased resistance creates pressure overload, which the model can connect to compensatory changes in ventricular structure and function. This sequence helps investigators study how altered valve performance affects cardiac performance over time.
Key variables include the degree of valve opening, resistance to forward flow, pressure overload, ventricular remodeling, and overall cardiac performance. Examining these features together is important because a change in valve function can influence both hemodynamics and the ventricle’s response. The combination provides a more informative representation than any single feature alone.
Clinical, computational, and experimental models represent the same disease-related features through different approaches. Clinical models support interpretation of patient-related findings, computational models help examine hemodynamics and changing conditions, and experimental models provide a setting for investigating disease progression or interventions. Their roles can complement one another when evaluating valve function and cardiac performance.
It can show how reduced valve opening changes resistance to forward flow and contributes to pressure overload in the left ventricle. By representing these relationships, the model helps investigators examine how altered hemodynamics influence ventricular remodeling and cardiac performance. Such information can also support the interpretation of diagnostic measures related to valve function.
A study can begin by representing the relevant degree of valve narrowing, then examining its effects on forward flow, resistance, and pressure overload. Investigators can next assess associated ventricular remodeling and cardiac performance. Finally, they can use the model to evaluate diagnostic measures or compare how medical and interventional strategies affect the represented system.
These models are useful when investigators need to compare medical or interventional strategies under represented stenosis conditions. They can support assessment of how a strategy affects valve function, hemodynamics, ventricular response, or overall cardiac performance. The approach is also relevant to the design and assessment of transcatheter and surgical valve therapies.
By linking valve narrowing with flow resistance, pressure overload, ventricular remodeling, and cardiac performance, the model gives learners and investigators a structured way to interpret disease-related changes. It can also help connect diagnostic measures to underlying valve function and hemodynamics. This makes the approach useful for education as well as research.