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[长时间挤压综合征早期心力衰竭的超微结构基础]

[Ultrastructural bases of heart failure in the early period of the prolonged crush syndrome].

作者信息

Sekamova S M, Kuzin M I, Korolev V V, Beketova T P, Sorokina M I

出版信息

Arkh Patol. 1982;44(6):42-9.

PMID:7125930
Abstract

Histological, electron microscopic, and physiological studies on the myocardium of rats and dogs in severe forms of compression syndrome (6-9 hours of compression and 2-4-7 hours after decompression) revealed three groups of morphological changes underlying cardiac insufficiency: (1) predominantly microcirculatory disorders with mild changes in cardiomyocytes detectable in bradycardia. Under these conditions the development of cardiac weakness may be based on both calcium overloading and reflectory weakening of the heart activity; (2) combination of microcirculatory disorders with marked hypoxic damage of the cardiomyocytes structure detectable under conditions of tachycardia may be an independent cause of the cardiac muscle weakness; (3) changes in the structures of cardiomyocytes responsible for nervous impulses conduction: sarcolemma and its derivatives. Under this condition, the probable cause of cardiac disorders may be electrolyte imbalance accompanying postcompression toxemia.

摘要

对处于严重压迫综合征(压迫6 - 9小时及减压后2 - 4 - 7小时)的大鼠和犬的心肌进行组织学、电子显微镜和生理学研究发现,心脏功能不全存在三组形态学变化:(1)主要是微循环障碍,心动过缓时可检测到心肌细胞有轻微变化。在这些情况下,心脏衰弱的发展可能基于钙超载以及心脏活动的反射性减弱;(2)微循环障碍与心动过速条件下可检测到的心肌细胞结构明显缺氧损伤相结合,可能是心肌衰弱的独立原因;(3)负责神经冲动传导的心肌细胞结构变化:肌膜及其衍生物。在这种情况下,心脏疾病的可能原因可能是压迫后毒血症伴随的电解质失衡。

相似文献

1
[Ultrastructural bases of heart failure in the early period of the prolonged crush syndrome].[长时间挤压综合征早期心力衰竭的超微结构基础]
Arkh Patol. 1982;44(6):42-9.
2
[Morphological bases of liver insufficiency in the early stages of the prolonged crush syndrome].[长时间挤压综合征早期肝功能不全的形态学基础]
Biull Eksp Biol Med. 1985 Nov;100(11):614-7.
3
[Pathogenetic importance of central hemodynamic disturbances and their relation to ultrastructural myocardial changes in the early period of experimental protracted crush syndrome].
Patol Fiziol Eksp Ter. 1982 Mar-Apr(2):14-9.
4
[Disorders of cardio- and hemodynamics in the crush syndrome and their correction by detoxification].
Fiziol Zh (1978). 1984 Nov-Dec;30(6):746-50.
5
[Regional blood redistribution in the early postcompression period of the soft tissue crush syndrome].[软组织挤压综合征早期解压阶段的局部血液再分布]
Ortop Travmatol Protez. 1979 Feb(2):39-42.
6
[Changes in the myocardium in the crush syndrome].[挤压综合征中心肌的变化]
Patol Fiziol Eksp Ter. 1985 Jul-Aug(4):23-9.
7
[State of cardio- and hemodynamics in the prolonged crush syndrome].[长时间挤压综合征中心脏和血流动力学状态]
Fiziol Zh (1978). 1982 May;28(3):279-84.
8
[Role of changes in myocardiocytes in the development of acute heart failure in experimental myocardial infarct].
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9
[Morphology and pathogenetic problems of the crush syndrome].挤压综合征的形态学及发病机制问题
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10
[Role of the sarcolemma in the morphogenesis of acute heart failure].
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