Pulmonary hypertension from chronic pulmonary thromboembolism.

Pulmonary hypertension from chronic pulmonary thromboembolism.
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慢性肺血栓栓塞引起的肺动脉高压。

DOI:
10.7326/0003-4819-108-3-425
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发表时间:
1988
影响因子:
39.2
通讯作者:
Bruce H. Brundage
Bruce H. Brundage
中科院分区:
医学1区
文献类型:
--
作者:
S. Rich;Sidney Levitsky;Bruce H. Brundage

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肺动脉高压可在肺动脉血流慢性阻塞时发生。虽然反复肺栓塞被认为是常见的潜在原因,但很少有临床证据支持这一理论。对肺血管内皮的研究表明,对正常内皮的扰动可以产生促凝环境,这可能导致大血管或小血管的原位血栓形成。一些患者发展近端肺血栓栓塞,这可能是最初的肺栓塞后血栓逆行传播的结果。其他表现为不明原因的肺动脉高压继发于肺微血管血栓闭塞。肺灌注扫描将显示异常,应导致正确的临床诊断和确证性评估。在选定的情况下,血栓内膜切除术为近端血栓栓塞患者提供了显著的临床改善。血管扩张剂对一些小动脉水平梗阻的患者可能有效。两组患者均应接受慢性华法林抗凝治疗,以防止血栓栓塞的进展。
Pulmonary hypertension may develop whenever chronic obstruction of pulmonary arterial blood flow occurs. Although repeated pulmonary embolism is thought to be the usual underlying cause, there is little clinical evidence to support this theory. Studies of the pulmonary vascular endothelium have shown that perturbations of the normal endothelium can create a procoagulant environment, which could lead to the development of thrombosis in situ at the level of the large or smaller pulmonary vessels. Some patients develop proximal pulmonary thromboemboli, which may be the result of retrograde propagation of thrombus after an initial pulmonary embolus. Others present with unexplained pulmonary hypertension secondary to thrombotic occlusion of the pulmonary microvasculature. A perfusion lung scan will show abnormalities that should lead to correct clinical diagnosis and confirmatory evaluation. Thromboendarterectomy in selected cases provides dramatic clinical improvement in patients with proximal thromboemboli. Vasodilators may be effective in some patients with obstruction at the arteriolar level. Both groups should be treated with chronic warfarin anticoagulant therapy to protect against progression of thromboembolism.
DOI: 10.7326/0003-4819-103-2-258
发表时间: 1985
影响因子: 39.2
作者:
Packer,M
通讯作者: Packer,M
肺动脉血栓内膜切除术后再灌注肺水肿。
DOI: 10.1164/arrd.1986.134.6.1241
发表时间: 1986
期刊: The American review of respiratory disease
影响因子: --
作者:
Levinson,RM;Shure,D;Moser,KM
通讯作者: Moser,KM
DOI: 10.1164/arrd.1987.135.2.294
发表时间: 1987-02
期刊: The American review of respiratory disease
影响因子: --
作者:
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通讯作者: R. Geggel;A. Carvalho;L. Hoyer;L. Reid
内皮表面和对损伤的反应。
DOI: --
发表时间: 1986
期刊: Federation proceedings
影响因子: --
作者:
Ryan,US
通讯作者: Ryan,US
DOI: 10.1056/nejm198412133112401
发表时间: 1984-01-01
影响因子: 158.5
作者:
COMP, PC;ESMON, CT
通讯作者: ESMON, CT