Supravalvular aortic stenosis
MONDO:0008504SupraValvar Aortic Stenosis (SVAS) is characterized by the narrowing of the aorta lumen (close to its origin) or other arteries (branch pulmonary arteries, coronary arteries). This narrowing of the aorta or pulmonary branches may impede blood flow, resulting in heart murmur and ventricular hypertrophy (in case of aorta involvement). The narrowing results from a thickening of the artery wall, which is not related to atherosclerosis.
Also known as: SVAS, supravalvar aortic stenosis, supravalvular aortic stenosis, supravalvular aortic stenosis (disease), aortic supravalvular stenosis, supravalvar aortic stenosis, Eisenberg type
61 clinical trials for this condition and its sub-types.
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New heart valve technology put to the test in 777 patients
Disease control CompletedThis study tested whether a new way of processing tissue for Edwards heart valves is safe and works well. 777 adults who needed a new aortic or mitral valve took part. Researchers checked for valve problems like wear or calcification over about a year, and will follow patients fo…
Phase: NA • Sponsor: Edwards Lifesciences • Aim: Disease control
Last updated Jun 27, 2026 12:31 UTC
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New Heart-Saving tactic tested in surgery
Disease control CompletedThis study tested a special heart-protection method given during heart surgery to see if it could reduce damage to the heart muscle. 210 adults having aortic valve surgery took part. Researchers measured a protein called troponin I in the blood for 72 hours after surgery to check…
Phase: NA • Sponsor: Hospices Civils de Lyon • Aim: Disease control
Last updated Jun 27, 2026 08:05 UTC
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Healing sounds and sights: VR and binaural beats tested for Post-Surgery sleep
Symptom relief CompletedThis study tested whether virtual reality relaxation or binaural beat stimulation can improve sleep and reduce discomfort in 140 adults who had mechanical heart valve replacement. Many patients struggle with sleep due to the sound of the new valve. Participants were randomly assi…
Phase: NA • Sponsor: University of Baghdad • Aim: Symptom relief
Last updated Jun 27, 2026 09:05 UTC
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NIH study probes hidden impact of stiff arteries in rare genetic condition
Knowledge-focused CompletedThis study looked at how blood vessel stiffness affects organs like the heart, brain, kidneys, and gut in people with Williams Syndrome (WS) or supravalvular aortic stenosis (SVAS). Researchers compared 159 participants (ages 3–85) with these conditions to healthy volunteers over…
Sponsor: National Heart, Lung, and Blood Institute (NHLBI) • Aim: Knowledge-focused
Last updated Aug 18, 2026 03:00 UTC
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Scientists launch DNA bank to unlock secrets of rare heart and genetic conditions
Knowledge-focused CompletedThis study collected DNA, tissue, and medical history from 305 people with Williams syndrome or supravalvar aortic stenosis (SVAS), as well as their family members and healthy volunteers. The goal was to create a resource for future research to understand why symptoms vary so muc…
Sponsor: National Heart, Lung, and Blood Institute (NHLBI) • Aim: Knowledge-focused
Last updated Aug 13, 2026 00:00 UTC
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New heart valves show promise in 5-Year Follow-Up study
Knowledge-focused CompletedThis completed study looked at 172 patients who received either a new-generation biological aortic valve or a traditional one during heart surgery. Researchers tracked survival and valve function over five years to see how the newer valves compare. The goal is to provide real-wor…
Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
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Heart valve choice may impact your mental health years later
Knowledge-focused CompletedThis study looked at 1,811 patients aged 60-70 who had heart valve replacement surgery. Researchers compared different types of artificial valves to see if the valve type was linked to developing depression, anxiety, or sleep disorders later. The goal was to understand if the cho…
Sponsor: Samsung Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:32 UTC
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AI spots hidden heart valve risks in routine scans
Knowledge-focused CompletedThis completed study used artificial intelligence to analyze electrocardiograms (ECGs) and chest X-rays from over 116,000 adults. The goal was to see if combining these routine tests could predict which patients would develop moderate or severe heart valve regurgitation. The rese…
Sponsor: Shanghai Zhongshan Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:30 UTC
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Heart surgery study seeks to pinpoint protection window
Knowledge-focused CompletedThis study looked at 80 adults having heart valve or aortic surgery to find out how long a special heart protection solution (Del Nido cardioplegia) keeps the heart safe during surgery. Researchers took blood samples at set times to see when heart injury began. The goal was to le…
Sponsor: Muhammet Talha Ceran, MD • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:07 UTC
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Newer, faster heart valve surgery may cause hidden rhythm issues
Knowledge-focused CompletedThis study looked back at 198 patients who had a sutureless aortic valve replacement to see how often they developed heart rhythm problems. These newer valves are faster to implant but have a metal frame that might affect the heart's electrical system. The goal was to better unde…
Sponsor: Centre Hospitalier Universitaire Dijon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:03 UTC
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Robot Knot-Tier tested in heart surgery
Knowledge-focused CompletedThis study collected information from multiple hospitals on the Cor-Knot® device, which automatically ties knots during heart valve surgery. The goal was to see how safe and effective it is. Over 550 adults having planned valve surgery took part. The main focus was on whether lea…
Sponsor: Centre Hospitalier Universitaire Dijon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:01 UTC