Clinical trials: Aneurysm
Internal Mammary Artery Syndrome, Vasodilation
Effect of Topically-applied Milrinone or Nitroglycerin on Internal Mammary Artery Free Flow
Forty-six consecutive patients undergoing elective primary coronary artery bypass grafting were enrolled. After the left IMA was harvested, free flow was measured under controlled hemodynamic conditions before any intervention…
- Trial name
- NCT06301880
- Testing
- The topical application of a vasodilator on the LIMA graft
- Where
- Syria
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Damascus University
Aortic Aneurysm, Thoracic, Aneurysm, Dissecting
A Registry Study on Genetics and Biomarkers of Thoracic Aortic Aneurysm/Dissection
This is a national registry study to determine genetic risk factor and serial biomarkers of thoracic aortic aneurysm/dissection
- Trial name
- ARSGBTAAD (NCT03010514)
- Where
- China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Beijing Institute of Heart, Lung and Blood Vessel Diseases
Delirium, AAA
Abdominal Aortic Aneurysm Patients Remain at Risk for Delirium on the Surgical Ward After Intensive Care Unit Dismissal
The incidence of delirium following open abdominal aortic aneurysm (AAA) surgery is significant, with incidence rates ranging from 12 to 33%.
- Conditions
- Delirium, AAA, Intensive Care Unit Delirium, Surgery--Complications
- Trial name
- NCT04080557
- Testing
- Surgery
- Where
- Netherlands
- Volunteers
- 135 people, healthy volunteers welcome
- Sponsor
- Amphia Hospital
Colon Ischemia, Aortic Aneurysm
Prevention of Colon Ischemia During Aortic Aneurysm (AAA) Repair
Patients undergoing surgery on their Aorta can get ischemia, a lack of blood flow, to their intestines and colon. This is very serious, as 2 out of 3 patients who have this problem die before leaving the hospital.
- Trial name
- NCT00671203
- Testing
- Reestablish colon blood flow
- Where
- 2 sites in United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Spectros Corporation
Endovascular Abdominal Aortic Aneurysm Repair
Contrast Ultrasound in the Surveillance of Endovascular Abdominal Aortic Aneurysm Repair
The purpose of this study is to support the suspected expectation that Contrast enhanced Ultrasound (CUS) detects all endoleaks that have been detected by Computed Tomography (CT), and also find a number of leaks missed by CT.
- Trial name
- NCT01022892
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Ottawa Hospital Research Institute
Nitric Oxide, Endothelium-Derived Relaxing Factor
Effects of Nitrite on Blood Vessel Dilation in Normal Volunteers
Nitric oxide gas is important in regulating blood vessel dilation, and consequently, blood flow. This gas is continuously produced by endothelial cells, which line the blood vessels.
- Conditions
- Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
- Trial name
- NCT00048477
- Testing
- L-NMMA and Sodium Nitrite
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Aortic Dissection, Family Research
Study on Susceptibility Genes and Pathogenic Mechanism of Non-syndromic Familial Aortic Dissection
Aortic dissection is dangerous and difficult to predict, so it is particularly important to carry out early prevention, diagnosis and rational treatment for high-risk groups.
- Conditions
- Aortic Dissection, Family Research, Aortic Dissection, Familial, With or Without Aortic Aneurysm
- Trial name
- NCT04439565
- Testing
- movement
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Chinese Medical Association
Atherosclerosis of Coronary Artery, Cardiovascular Disease
Radiation Dose From Computed Tomography Before and After Implementation of a High Pitch Dual Spiral Technique
The purpose of this study is to compare the radiation exposure of a variety of chest CT examinations performed on the current state of the art CT scanners (64 slice, dual source CT scanner) with the radiation exposure for…
- Conditions
- Atherosclerosis of Coronary Artery, Cardiovascular Disease, Pulmonary Embolism, Aortic Aneurysm Without Mention of Rupture Nos
- Trial name
- FLASH (NCT01111760)
- Where
- United States
- Volunteers
- 334 people, healthy volunteers welcome
- Sponsor
- Michael Gallagher
Ehlers-Danlos Syndrome, Obstructive Sleep Apnea
Obstructive Sleep Apnoea in Ehlers-Danlos Syndrome
Ehlers-Danlos Syndrome (EDS) is a clinically and genetically heterogeneous group of inherited connective tissue disorders characterized by joint hypermobility, skin hyperextensibility, and tissue fragility.
- Trial name
- OSA in EDS (NCT02435745)
- Where
- Switzerland
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Other Acute Illnesses Presenting to the Hospital, Heart Failure
Evaluation of Implementation of a National Point-of-Care Ultrasound Training Program
This VA QUERI Partnered Evaluation Initiative will evaluate the impact of an immersive Point-of-care Ultrasound (POCUS) Training Course on provider skill acquisition and retention; the frequency of POCUS use by trained providers…
- Conditions
- Other Acute Illnesses Presenting to the Hospital, Heart Failure, Pneumonia, Deep Venous Thrombosis
- Trial name
- NCT03296280
- Where
- United States
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Intracranial Aneurysm, Subarachnoid Hemorrhage
Familial Intracranial Aneurysm Study II
The purposes of this study are to identify possible genes that may increase the risk of aneurysm development in the brain, and to determine the effect of environmental factors such as cigarette smoking and high blood pressure on…
- Trial name
- NCT00071565
- Where
- 16 sites in United States
- Volunteers
- 5,875 people, healthy volunteers welcome
- Sponsor
- University of Cincinnati
Healthy, Hypercholesterolemia
Study of the Response of Human Small Blood Vessels
A layer of cells called the endothelium line the walls of blood vessels. These cells produce substances that control the tone of blood vessels and thus control blood flow through the vessel.
- Conditions
- Healthy, Hypercholesterolemia, Hypertension
- Trial name
- NCT00001622
- Testing
- investigate the relationship between in vivo and in vitro vascular responses
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Heart Disease, Heart Failure
Investigating Systemic and Local Vascular Responses to Apelin in the Context of Renin-angiotensin Upregulation
The apelin-APJ system is a relatively new discovery. It has generated interest in part due to it's apparent ability to counteract the renin-angiotensin system, which is frequently overactive in many cardiovascular disease.
- Conditions
- Heart Disease, Heart Failure, Vasodilatation
- Trial name
- NCT00901719
- Testing
- Apelin, Acetylcholine, Sodium nitroprusside
- Where
- United Kingdom
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- University of Edinburgh
Diabetes Mellitus, Healthy
Vascular Effects of Endothelium-Derived Versus Hemoglobin-Transported Nitric Oxide in Healthy Subjects
Nitric oxide (NO) is a soluble gas, continuously synthesized by the endothelium, that contributes importantly to vasodilator tone of the coronary and systemic circulations by activating guanylyl cyclase in vascular smooth muscle…
- Conditions
- Diabetes Mellitus, Healthy, Hypercholesterolemia, Hypertension
- Trial name
- NCT00001963
- Testing
- hemoglobin-transported nitric oxide
- Where
- United States
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Carbon Dioxide, Endovascular Abdominal Aortic Aneurym Repair
Prospective, Non-Randomized Evaluation of Carbon Dioxide Gas as a Contrast Agent in Comparison With Iodinated Contrast in Endovascular Aneurysm Repair
Endovascular repair of infrarenal abdominal aortic aneurysms (AAA) requires a contrast agent to identify the vascular anatomy and placement of the stent graft.
- Conditions
- Carbon Dioxide, Endovascular Abdominal Aortic Aneurym Repair, Prospective, Angiogram
- Trial name
- NCT00520416
- Testing
- Carbon dioxide angiogram
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Southern California
Aneurysm
Captopril Versus Atenolol to Prevent Expansion Rate of Thoracic Aortic Aneurysms
Thoracic aortic aneurysms (TAA) are considered "silent killers" because they scarcely display any symptomatology, but are correlated with significant mortality and morbidity.
- Trial name
- NCT04224675
- Testing
- Atenolol
- Volunteers
- 424 people, healthy volunteers welcome
- Sponsor
- Onassis Cardiac Surgery Centre
Ascites, Blunt Abdominal Trauma
Telesonography Adaptation and Use to Improve the Standard of Patient Care Within a Dominican Community
The role of teleradiology has far reaching implications for the health of remote and underserved populations. The ability to coordinate radiographic evaluation and diagnosis from a distance has the potential to raise the standard…
- Conditions
- Ascites, Blunt Abdominal Trauma, Cholelithiasis, Cholecystitis
- Trial name
- NCT00591968
- Testing
- SonoSite Titan portable ultrasound coupled with email telediagnosis
- Where
- Dominican Republic
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Edward Via Virginia College of Osteopathic Medicine
Loeys-Dietz Syndrome
Immunopathology of Loeys-Dietz Syndrome
Loeys-Dietz syndrome (LDS) is a rare vascular genetic disorder (estimated prevalence 1/25,000-1/100,000) due primarily to mutations in the Transforming growth factor beta (TGF-β) cytokine receptor 1 and 2 genes.
- Trial name
- I-LoDiS (NCT05472519)
- Testing
- blood samples
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Endothelial Dysfunction, Obesity
Leptin Infusion and Endothelial Vasomotor Response
Adipose tissue is an active endocrine organ producing several hormones with circulatory and metabolic effects. In 1994, the hormone leptin was discovered.
- Conditions
- Endothelial Dysfunction, Obesity, Vasodilation, Venous Occlusion Plethysmography
- Trial name
- LIVARM (NCT04374500)
- Testing
- Leptin infusion plus vasodilators in healthy men, Leptin infusion in healthy men, Vasodilators in CAD patients
- Where
- 2 sites in Sweden, United Kingdom
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Stefan Soderberg
Hypoplastic Left Heart Syndrome, Aortic Coarctation
Cardiovascular Response to Maternal Hyperoxygenation in Fetal Congenital Heart Disease
Cardiovascular Response to Maternal Hyperoxygenation in Fetal Congenital Heart Disease
- Conditions
- Hypoplastic Left Heart Syndrome, Aortic Coarctation, Atrial Septal Aneurysm
- Trial name
- NCT03147014
- Testing
- Maternal hyperoxygenation
- Where
- China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Beijing Anzhen Hospital