在A型急性大动脉剖析后发生近端和远端大动脉事件的危险因素
Sho Akita1,2, Yoshiyuki Tokuda3, Wataru Kato4
1Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Syowa-ku, Nagoya City, Aichi, 466-8560, Japan. sakita0776@hotmail.co.jp.
General thoracic and cardiovascular surgery
|September 17, 2024
概括
早期术后CT扫描可以预测A型急性大动脉剖析 (TAAAD) 手术后的长期大动脉事件. 识别风险因素,如近端瘤新入口,可以改善患者的管理和结果.
科学领域:
- 心血管外科心血管外科
- 放射学 放射学是一门学科.
- 主动脉疾病 主动脉疾病
背景情况:
- 甲型急性大动脉解剖 (TAAAD) 是一种危急的情况,通常需要紧急手术干预.
- 很大一部分患者 (约30%) 由于长期的大动脉并发症需要重新手术.
- 早期识别风险因素对于优化患者管理和预后至关重要.
研究的目的:
- 在接受TAAAD手术的患者中使用早期术后计算机断层扫描 (CT) 识别长期大动脉事件的预测因素.
- 评估特定CT检测结果与随后的大动脉事件的发生之间的关联.
- 加强TAAAD患者的长期管理策略.
主要方法:
- 在2002年至2018年期间接受TAAAD手术的336名患者的回顾性分析.
- 专注于302名患者进行手术后立即CT检查,以评估大动脉事件的预测因素.
- 大动脉事件被定义为与大动脉有关的死亡,开放性手术,再手术,内血管支架或胸前大动脉直径≥55mm.
主要成果:
- 在初级TAAAD手术后,1年,5年和10年生存率分别为98.2%,88.6%和81.7%.
- 在平均7.4年的随访期间,观察到67起大动脉事件.
- 靠近性瘤新入口 (92%与10年后42%相比) 和虚假/真实面积比>1与远端瘤新入口是大动脉事件的显著预测因素.
结论:
- 早期术后CT扫描是识别TAAAD修复后有未来大动脉事件风险的患者的宝贵工具.
- 诸如近端瘤新入口和特定的大动脉几何变化等发现可以指导风险分层.
- 这项分析支持使用详细的CT评估来改善TAAAD幸存者的长期管理和结果.
相关概念视频
Aortic Regurgitation I: Introduction
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
Aortic Regurgitation III: Medical Management
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
Aneurysm I: Introduction
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...


