View clinical trials related to Aortic Dissection.
Filter by:The goal of this clinical trial is to see if the investigators can find a safer and quicker way to localize the correct spinal level before the start of thoracic spinal surgery. Currently, this localization is done with the help of spinal needles and fluoroscopy. There are some inherent issues with accuracy due to individual factors such as the type of operating table or the body habitus. The investigators want to know if the use of ultrasound to count ribs and mark the corresponding spinal level would be a quicker and possibly even more accurate than the use of fluoroscopy. Participants who will be approached for this study are those that have already consented to undergo thoracic spinal surgery. Once they have been consented for the study, they will undergo anesthesia as per normal and positioned prone for the intended surgery. At this juncture, the radiographers will be setting up to perform fluoroscopy to confirm the spinal level and for the surgeons to mark the skin. For the purposes of the study, the investigators will use the ultrasound to count the ribs and mark the corresponding spinal level. Participants will undergo fluoroscopy to mark the skin level as well. The investigators are studying to see if the ultrasound method is just as accurate as the traditional fluoroscopy method. The results will be binary and will be recorded. The study ends at this point and no further participation is required from the patient.
A multicenter, retrospective study to evaluate the real-world efficacy of the Fabulous thoracic aortic stent system in the treatment of Stanford Type B aortic dissection.
The goal of this randomized clinical trial is to compare a liberal versus restrictive oxygen supply (fraction of inspired oxygen, FiO2) strategy in patients scheduled for thoracic surgery requiring one-lung ventilation during lung isolation. The primary and secondary outcome parameters are: - oxygenation of the blood after 30 minutes of one-lung ventilation, assessed by PaO2/FiO2 ratio - time to lung collapse after start of one-lung ventilation Participants in the control goup will receive an oxygen content of 100% before lung isolation, which will be subsequently decreased to achieve normoxia or mild hyperoxia (PaO2 of 75-120 mmHg). The intervention group will receive the previous, during two-lung ventilation set, oxygen content and after lung isolation oxygen supply will be increased to secure adequate oxygenation of the blood (PaO2 75-120 mmHg) during one-lung ventilation. The investigators hypothesize, that a higher fraction of inspired oxygen may impede hypoxic pulmonary vasoconstriction of the collapsed lung and thus decrease overall oxygenation performance during one-lung ventilation. Secondary endpoint will be the time to lung collapse, as a lower fraction of inspired oxygen and thus a higher nitrogen content may impede lung collapse.
Type A aortic dissection (TAAD) is a potentially life-threatening pathology associated with significant risk of mortality and morbidity. In acute forms of type A aortic dissection (TAAD) mortality is 50% by 24 h and 50% of patients die before reaching a specialist center. Rapid diagnosis and subsequent prompt surgical repair remain the primary goal for these patients. In the last decade it has been observed that improvements in diagnostic techniques, initial management and increased clinical awareness have contributed to a substantial increase in the number of patients benefiting from a prompt diagnosis and undergoing surgery.However, survival after surgical repair has not yet reached optimal follow-ups and is burdened by high in-hospital mortality(16-18%)
Acute Stanford type A aortic dissection (TAAD) is a life-threatening clinical status requiring surgery that is usually performed as a salvage procedure.We planned a multicenter study to evaluate the balance between the patient's condition and those therapeutic strategies that may limit the risk of late adverse events in patients who will be underwent surgery for appropriate management of TAAD
Acute type A aortic dissection (TAAD) persists as a clinicopathologic entity with high lethality in the current era. Several procedures are presently used to repair the TAAAD. The objective of this study is to analyze two groups of individuals using a conservative approach through root-sparing and hemiarch techniques in patients who are hospitalized in higher-risk clinical conditions or more aggressive procedures such as root replacement and total arch replacement in low-risk patients.
Aortic dissection is an uncommon and serious pathology. Its diagnosis is difficult because of the varied and silent clinical presentations. The development of ultrasound in emergency medicine is an asset in certain pathologies. The aim of this study is therefore to study the feasibility of a protocol integrating clinical ultrasound in the suspicion of acute aortic dissection in the hospital setting. This study is a single-center prospective interventional study. In which the investigators perform ultrasound in patients with suspected acute aortic dissection in the emergency department. If the protocol is feasible and if it allows a saving of time in the diagnosis or an increase in diagnoses, the investigators will be able to evoke a profitability to the systematic realization of this examination.
The purpose of this study is to evaluate the safety and performance of Cook's various Custom-Made Stent-graft Devices (CMD) used for endovascular treatment of the aorta and related diseases by collecting information on the real-world use of the devices. The study results will be used to support the continuation of the CMDs on the market. In addition, the study will support the manufacturers obligation for post market product surveillance as well as Cook's technology development.
To evaluate aortic remodeling of Fabulous thoracic aortic stent system in the treatment of acute and subacute Stanford type B aortic dissection (the changes of aortic diameter, cross-sectional area,and volume of true lumen, false lumen and total aorta in different aoritc levels, and false lumen thrombosis in different aoritc levels), and splanchnic artery perfusion.
This is A prospective, randomized, placebo-controlled, reestimable adaptive clinical study to evaluate the efficacy and safety of perioperative application of sivelestat sodium to shorten the duration of postoperative invasive mechanical ventilation in acute type A aortic dissection patients with preoperative moderate and severe hypoxemia (PaO2/FiO2≤200mmHg).