相关实验视频
Updated: Jan 31, 2026

08:51
A New Murine Model of Endovascular Aortic Aneurysm Repair
Published on: July 7, 2013
14.8K
在内血管大动脉门修复过程中内移植旋转的发生率
Emanuele C Grasso1, Federico F Pennetta2, Roberto G Aru3
1Department of Cardiac and Vascular Surgery, Aortic Center, Hôpital Marie Lannelongue, Groupe hospitalier Paris Saint Joseph, INSERM UMR_S 999, Université Paris-Saclay, Paris, France; Department of Vascular and Endovascular Surgery, ASST Fatebenefratelli Sacco, Milano, Italy.
Journal of vascular surgery
|January 29, 2026
概括
定制的三分支内移植在大动脉门修复过程中显示最小的旋转. 阴茎曲和较小的分支直径预测严重的旋转,但技术上的成功仍然很高.
科学领域:
- 血管外科 血管外科
- 血管内干预 血管内干预
- 医疗器械技术 医疗器械技术
背景情况:
- 使用定制的三分支内移植进行内血管大动脉门修复是一种复杂的程序.
- 部署的内脏移植的旋转偏差可能会影响技术成功和临床结果.
- 了解轮换的预测因素对于优化程序规划和患者安全至关重要.
研究的目的:
- 为了评估在主动脉中部署的定制三分支内移植中旋转偏差的发生率和程度.
- 确定旋转偏差的潜在预测因素,包括患者解剖学和设备特征.
- 评估旋转偏差对大动脉门修复技术和临床结果的影响.
主要方法:
- 一个单一中心的回顾性研究,对75名患者进行了整体内血管大动脉门修复,使用定制的库克三分支器件.
- 使用3D中线重建和时钟面方向评估内移植的旋转偏差.
- 分析解剖学变量 (门,大动脉,阴扭曲) 和设备规格作为潜在的旋转预测器.
主要成果:
- 大多数患者 (74.7%) 经历了极小 (<20°) 的内移植旋转.
- 较高的阴茎曲度指数 (p=0.041) 和较小的BCT分支直径 (p<0.001) 与严重的旋转 (>40°) 有显著的相关性.
- 技术成功率很高 (96%),并不受旋转偏差的影响;在严重的旋转情况下,早期中风发生率更高,但没有统计学意义 (p=0.089).
结论:
- 库克三分支内移植的输送系统在大多数情况下都表现出高精度和有限的移植旋转.
- 阴茎形是旋转偏差的重要预测因素,而形形显示出趋势.
- 在手术前评估阴扭曲可能会改善手术规划,并减少血管内大动脉门修复的手术内挑战.
相关概念视频
Prevalence and Incidence
1.8K
In statistical epidemiology and health sciences, two essential metrics—prevalence and incidence—are fundamental for understanding disease dynamics within a population. These measures enable public health officials, epidemiologists, and researchers to assess the burden of diseases, allocate resources effectively, and design impactful public health policies and interventions.
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
1.8K
The Arch of Aorta
1.7K
The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Encircling the heart, the coronary arteries form a ring-like structure before...
1.7K
Mismatch Repair
43.7K
Overview
43.7K
Overview of DNA Repair
33.6K
In order to be passed through generations, genomic DNA must be undamaged and error-free. However, every day, DNA in a cell undergoes several thousand to a million damaging events by natural causes and external factors. Ionizing radiation such as UV rays, free radicals produced during cellular respiration, and hydrolytic damage from metabolic reactions can alter the structure of DNA. Damages caused include single-base alteration, base dimerization, chain breaks, and cross-linkage.
Chemically...
Chemically...
33.6K
Base Excision Repair
26.3K
One of the common DNA damages is the chemical alteration of single bases by alkylation, oxidation, or deamination. The altered bases cause mispairing and strand breakage during replication. This type of damage causes minimal change to the DNA double helix structure and can be repaired by the base excision repair (BER) pathways. BER corrects damaged DNA sequences by removing the damaged base and restoring the original base sequence using the complementary strand as a template.
The first step of...
The first step of...
26.3K
Nucleotide Excision Repair
40.8K
Overview
40.8K

