View clinical trials related to Aortic Dissection.
Filter by:Hypertension affects 32-35% of the global adult population [1]. Despite many drugs being available [2] hypertension is not controlled in 50% of the over 500 million treated people [1], [3], leaving patients with an elevated blood pressure for life. In the development of isolated systolic hypertension, the aorta plays a pivotal role [4], [5]. With each heartbeat, the heart empties its stroke volume into the large arteries. These arteries, particularly the thoracic part of the aorta [6], temporarily distend to buffer the stroke volume and thereby dampen the pressure fluctuation: they have a Windkessel function [7]. When this function is reduced (and arterial stiffness is increased), the heart needs to contract more forcefully during ejection, leading to isolated systolic hypertension [5]. Likely, the aorta is not just a passive structure (the aorta as an elastic 'bicycle tube'). Rather, the smooth muscle cells in the aorta wall can presumably actively change the aorta's dimension through vasoconstriction/-dilation. If this is the case, such vasoconstriction/-dilation will have direct consequences for the aorta's Windkessel function and, since this Windkessel function directly influences the blood pressure flucturation, also for hypertension and its progression. Therefore, the aim of this study is to quantify the thoracic aorta's ability to vasoconstrict, and to assess whether this contractility is related to specific predictors. During the study we will measure in the operating room the thoracic descending and ascending aortic diameter with transoesopahgeal echocardiography (part of standard clinical care), before and after administration of vasoactive drugs (phenylephrine and norepinephrine; also part of standard clinical care). During these measurements we will simultanesouly measure peripheral arterial blood pressure and an electrocardiogram (ECG, to monitor sympathetic activity as estimated using heart rate variability analysis [8], [9]). Measurements will be performed at Catharina Hospital Eindhoven, the Netherlands (NL), where patients undergo elective cardiac surgery. Using the data obtained, we will 1) establish and quantify the in vivo contractility of the human thoracic aorta, and 2) study whether and to which extent potential predictors (age, sex, smoking status, antihypertensive medication use/class, mean arterial pressure, pulse pressure as an indirect measure of arterial stiffness, diabetes, chronic kidney disease, total cholesterol, and sympathetic activity) influence contractility
The aim of the study is to evaluate the impact of the stent-assisted balloon-induced intimal disruption and relamination in aortic dissection repair (STABILISE) technique in the patency of intercostal and lumbar arteries detectable on computed tomography angiography (CTA) in patients with type B aortic dissection and its correlation with the occurrence of spinal cord ischaemia (SCI). Primary end-point: patency of the intercostal and lumbar arteries on follow-up CTA. Secondary end-point: spinal cord ischaemia
The study, named as "The Efficacy of Driving Pressure-guided Lung Protective Ventilation in Surgical Repair of Acute Type A Aortic Dissection: an open-label, randomized control clinical trial", aims to investigate whether driving pressure-guided lung protective ventilation can reduce postoperative oxygenation function in patients who have undergone surgical repair of acute type A aortic dissection. The primary outcomes is the incidence of postoperative hypoxemia (a partial pressure of arterial oxygen to inspiratory oxygen fraction ratio less than 300 mm Hg or a peripheral blood oxygen saturation less than 93% at any concentration of inspiratory oxygen) within 7 days after the surgery.
The aim of this study is to explore the genetic information associated with the development of TAA and aAD in individuals without history or syndromic features (Marfan syndrome, Ehlers-Danlos syndrome, Turner syndrome etc.) for aortic disease. For this purpose, whole genome sequencing will be performed in patients with documented aortic aneurysm or/and aortic dissection.
According to the literature, presepsin was recommended not only as an effective indicator in the diagnosis of sepsis in intensive care units, but also as a reliable prognostic marker of postoperative inflammatory processes in cardiac surgery. Previous study carried out in Petrovsky NRCS related to biomarkers in cardiac surgery and presepsin in particular showed good sensitivity in infection complications prognosis.
Assess the clinical outcome, morphological changes and behaviour of type B aortic dissection after endovascular repair.
Multicenter registry on patients treated by the new Gore thoracic branched endoprosthesis
Real-world clinical trial evidence post-market, evaluating the safety and efficacy of the Dominus® StentGraft Endoprosthesis in treating thoracic aortic diseases, following the Instructions for Use
This projects aim is to study the effects of substitute conventional chest x-ray with lung ultrasound for patients undergoing thoracic surgery. Participants in the study will be randomized to either ultrasound or routine chest x-ray as the primary method of diagnosis after having received surgery to their lungs.
This trial aims to demonstrate the safety and validity of extracorporeal fenestration and in situ fenestration in patients with aortic disease involving the left subclavian artery.