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相关概念视频

Atelectasis II: Pathophysiology01:10

Atelectasis II: Pathophysiology

Atelectasis develops when alveoli lose their air and collapse inward. Because lung tissue is naturally elastic, these air sacs shrink rather than remaining open. Collapsed alveoli are no longer ventilated, reducing their role in gas exchange. Blood flow may continue in these regions, creating a ventilation–perfusion mismatch. Clinical findings include decreased breath sounds, dullness to percussion, reduced chest expansion, and decreased tactile fremitus as sound transmission through collapsed...

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在罗斯手术后,肺同移植狭窄的发生率,位置,病理和意义.

G S Carr-White1, P J Kilner, J K Hon

  • 1Department of Cardiology, Cardiovascular Magnetic Resonance, National Heart and Lung Institute, Royal Brompton Hospital, London, UK. g.carr-white@virgin.net

Circulation
|September 25, 2001
PubMed
概括
此摘要是机器生成的。

罗斯手术后的肺同移植狭窄是一个重大问题,通常源于早期炎症反应,导致外部压缩. 这一发现凸显了手术后需要仔细监测这些移植的必要性.

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科学领域:

  • 心血管外科心血管外科
  • 胸部外科手术 胸部外科手术
  • 儿童心脏病学 儿童心脏病学

背景情况:

  • 罗斯手术为大动脉置换提供了理论上的优势.
  • 对于罗斯手术中使用的肺同体移植的长期病理存在担忧.

研究的目的:

  • 为了调查罗斯手术后肺同移植狭窄的发生率和特征.
  • 确定同种植器功能障碍的潜在原因和风险因素.

主要方法:

  • 一组144名接受罗斯手术的患者被跟踪平均48个月.
  • 心声图被用于对肺同移植功能的连续评估.
  • 带有速度映射的磁共振成像 (MRI) 在患有升高梯度的小组中进行.

主要成果:

  • 无肺同移植狭窄症的7年自由率为79.7%.
  • 由于快速进展的狭窄,四名患者需要重新手术,有来自偶然反应的外部压缩的证据.
  • 在15名被评估的患者中,MRI显示在14名患者中,同种植物缩小和周围组织.

结论:

  • 肺同移植狭窄症是罗斯手术的一个临床上显著的并发症.
  • 狭窄似乎是一个早期的炎症反应,导致外部压缩和/或移植收缩.
  • 通过多变量分析,没有发现新肺狭窄症的显著风险因素.