Found 43 clinical trials
Registry for Invasive and Non-invasive Anatomical Assessment and Outcome of Coronary Artery Anomalies
The possible presence of an interarterial/intramural course is the primary cause for an oval proximal vessel shape and/or proximal vessel narrowing, which may lead under stress conditions to a "dynamic compression" of the vessel (compared to "fixed" stenosis in coronary artery disease). To mimic these conditions, dobutamine and volume challenge …
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- 05 Aug, 2020
A 10-Minute Cardiovascular Magnetic Resonance Protocol for Cardiac Disease
This study aims to identify and assess new CMR techniques that can improve current CMR protocols.
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- 16 Feb, 2024
- 1 location
TMAO in Patients With Severe Aortic Stenosis
Trimethylamine N-oxide (TMAO) has recently gained increasing scientific interest in the field of cardiovascular disease, including its role in cell protection against osmotic and hydrostatic stress. Aortic stenosis (AS) is the most common valvular heart disease, affecting about 7.6 million people over 75 years of age in North America and …
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- 16 Feb, 2024
- 1 location
COronary and MICrocirculatory Measurements in Patients With Aortic Valve Stenosis.
Aortic stenosis (AS) is the most common primary valve disease leading to surgery or catheter intervention in Europe, with a growing prevalence due to the aging population.
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- 16 Feb, 2024
- 1 location
Effect of FFRCT-angio in Functional Diagnosis of Coronary Artery Stenosis
Coronary CT angiography (CTA) or invasive coronary angiography (CAG) is usually performed to evaluate the severity of coronary stenosis depending on the probability of CAD. However, the stenosis severity is not closely corresponding with the hemodynamic significance in coronary arteries.
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- 05 Aug, 2020
Post-Marketing Follow-Up of Long-term Type Ureteral Stent Set
Although there are several reports regarding the effectiveness of long-term ureteral stents for malignancy ureteral obstruction, ureteral stricture and urolithiasis, the experience is limited about the long-term ureteral stents made by Taiwan. The investigators have to propose the 5-year post-market survey report.
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- 16 Feb, 2024
- 1 location
Cardiac Output, Cerebral Perfusion and Cognition in Patients With Severe Aortic Valve Stenosis Undergoing Transcatheter Aortic Valve Implantation (CAPITA)
Cognitive impairment is common (21-39%) among patients with severe aortic valve stenosis. The proof-of-concept CP-TAVI study showed that increased cardiac output following transcatheter aortic valve implantation (TAVI) was associated with increased cerebral blood flow.
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- 11 Jan, 2023
- 1 location
Assess the Risk of Cerebrovascular Disease
Intracranial artery stenosis is an important cause of ischemic stroke, but the degree of intracranial artery stenosis is not completely matched with the symptoms of ischemic stroke.
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- 16 Feb, 2024
- 1 location
Effect of Pre-existing Adjacent Segment Degeneration on Long-term Effectiveness After Lumbar Fusion Surgery
Important adjacent pre-existing degeneration factors include discs degenerated, facets and ligamentum flavum tropism which could lead to spinal canal stenosis (SCS). This study will focus on the effects of pre- existing adjacent degeneration (disc factors and spinal canal stenosis factors) on long-term postoperative outcomes.
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- 16 Feb, 2024
- 1 location
VitaFlow Transcatheter Aortic Valve System Post-market Study-The LAUNCH Study
The study objective is to evaluate safety and effectiveness/performance of the Microport CardioFlow VitaFlow Transcatheter Aortic Valve System for the treatment of severe aortic stenosis in the real world settings.
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- 16 Feb, 2024
- 2 locations