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相关概念视频

Corrosion02:49

Corrosion

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The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
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Ion Exchange01:17

Ion Exchange

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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Pharmacovigilance01:19

Pharmacovigilance

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Post-marketing surveillance is a critical component of pharmaceutical regulation, often uncovering unanticipated adverse drug reactions (ADRs) once a drug is widely used over an extended period.
This process, termed pharmacovigilance, aims to detect, evaluate, and minimize harmful effects related to medication use. The data collection for pharmacovigilance depends on spontaneous reporting systems, where healthcare professionals or patients voluntarily report suspected ADRs.
In some cases, there...
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Anastomoses01:19

Anastomoses

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In human anatomy, anastomosis refers to a connection or opening between two things, particularly between blood vessels or other tubular structures. The term is derived from the Greek term 'anastomosis,' which means 'outlet' or 'opening.' This natural network of connections plays a critical role in the survival and functionality of the human body.
Anastomoses can be formed at arterial, venous, and lymphatic vessels.
Arterial Anastomosis: These occur between arteries. They...
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Correlation01:09

Correlation

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In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
Two variables, for example, a and b, are said to be positively correlated if both variables move in the same direction. In other words, a positive correlation exists between two variables, a and b, if:
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Overcurrent Relays01:26

Overcurrent Relays

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Overcurrent relays, crucial for circuit protection, are connected to the secondary current of a current transformer. There are two primary types of overcurrent relays: instantaneous and time-delay.
Instantaneous overcurrent relays activate immediately when the input current exceeds a predetermined value, known as the pickup current, instantly energizing the circuit breaker trip coil. This rapid response is vital for addressing severe faults quickly.
Time-delay overcurrent relays, on the other...
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Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model
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[阿诺科尔注册] 的注册.

P Aubry1, X Halna du Fretay2, S Zendjebil3

  • 1Département de cardiologie, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Bichat-Claude-Bernard, 75018 Paris, France; Service de cardiologie, Centre Hospitalier de Gonesse, 95500 Gonesse, France.

Annales de cardiologie et d'angeiologie
|November 9, 2023
PubMed
概括
此摘要是机器生成的。

冠状动脉的异常大动脉起源 (AAOCA) 是一种罕见的先天性心脏缺陷. ANOCOR注册表确定了两个主要的AAOCA表型,强调需要准确的分类来评估突然死亡风险.

关键词:
血管扫描仪冠状动脉冠状病毒遗传异常 (anomalie coronaire congénitale) 是一种天生的异常.动脉动脉连接异常异常的大动脉起源异常出生的冠状动脉异常.冠状动脉计算机断层扫描血管图谱.心肌缺血是什么意思 心肌缺血是什么意思一个突然的死亡.心肌缺血是什么意思 心肌缺血是什么意思突然死亡是突然死亡.

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科学领域:

  • 心脏病学 心脏病学
  • 遗传性心脏病是一种先天性心脏病.
  • 医疗成像医学成像

背景情况:

  • 冠状动脉的异常大动脉起源 (AAOCA) 是具有不同解剖学表现的先天性心脏缺陷.
  • 由于突然心脏死亡的可变风险,对AAOCA的准确分类至关重要.
  • 关于AAOCA的确切机制,个体风险分层,自然史和外科治疗益处仍然存在不确定性.

研究的目的:

  • 准确地分类冠状动脉异常大动脉起源的解剖形式.
  • 根据冠状动脉和宫外过程,在AAOCA内识别不同的表型.
  • 为管理AAOCA患者的临床医生提供基于证据的数据.

主要方法:

  • 分析来自ANOCOR注册表的数据,这是迄今为止最大的公布队列.
  • 包括472名患有496例冠状动脉异常的患者.
  • 利用侵袭性冠状动脉血管学和冠状动脉CT血管学进行详细的血管学表示.

主要成果:

  • 确定了两个主要的AAOCA表型:环动脉 (n=235) 带有逆门通道 (97%) 和右冠状动脉 (n=165) 带有动脉间通道 (89.7%).
  • 在非专家心脏病学家中,有关左冠状动脉解剖形式 (逆肺与动脉间) 的突出困惑.
  • 在这个队列中,突然死亡是罕见的 (0.6%),只有少数年轻患者 (<35岁,2.3%).

结论:

  • ANOCOR注册表提供了关于AAOCA表型的全面数据.
  • 精确的血管学分类,特别是区分左冠状动脉起源,是必不可少的.
  • 在这个主要是老年AAOCA人群中,突然死亡是罕见的结果.