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A histological study on microthrombi in autopsy cases of DIC
Abstract:
Microthrombi in 43 untreated and 26 treated cases of DIC were studied histologically and immunohistochemically. In the untreated cases, four types of microthrombi (intraluminal microthrombi with or without fibroblastic and/or smooth muscle cell reaction) were identified. Microthrombi in the former three types showed various degrees of thrombolysis. Failure of thrombolysis seemed to lead the organization of microthrombi. These morphological findings were considered to indicate the course of DIC and the degree of disappearance of the microthrombi in DIC. Microthrombi in the hepatic sinusoids and glomerular capillaries were studied with special reference to the removal processes of the microthrombi. Pathogenesis of renal cortical necrosis in DIC was also discussed. The number of microthrombi was markedly decreased by heparin and gabexate mesilate treatment. The incidences of microthrombi in the liver, kidney, lung, and heart were compared in the two treated groups.
Insights
This study investigated microthrombi in disseminated intravascular coagulation (DIC). Treatments with heparin and gabexate mesilate significantly reduced microthrombi, offering insights into DIC progression and treatment efficacy.
Area of Science:
- Pathology
- Hematology
- Medical Research
Background:
- Disseminated intravascular coagulation (DIC) is a complex hematological disorder.
- Microthrombi formation is a key pathological feature in DIC.
- Understanding microthrombi dynamics is crucial for managing DIC.
Purpose of the Study:
- To characterize microthrombi morphology in untreated DIC.
- To evaluate the effect of heparin and gabexate mesilate on microthrombi.
- To investigate microthrombi removal processes and their role in DIC pathogenesis.
Main Methods:
- Histological and immunohistochemical analysis of microthrombi.
- Comparison of microthrombi in untreated and treated (heparin, gabexate mesilate) DIC cases.
- Examination of microthrombi in hepatic sinusoids and glomerular capillaries.
Main Results:
- Four types of microthrombi identified in untreated DIC, with varying degrees of thrombolysis and organization.
- Heparin and gabexate mesilate treatments markedly decreased microthrombi count.
- Incidences of microthrombi in various organs (liver, kidney, lung, heart) compared between treatment groups.
Conclusions:
- Morphological findings of microthrombi correlate with DIC progression and resolution.
- Therapeutic interventions significantly reduce microthrombi burden in DIC.
- Further research needed on organ-specific microthrombi distribution and removal mechanisms in DIC.