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KMID : 0376219820190040705
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Chonnam Medical Journal
1982 Volume.19 No. 4 p.705 ~ p.711
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A Morphologic Study on the Rat Lungs in Priinmary Shock
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鄭相愚/Juhng, Sang-Woo
李珉徹/曺圭赫/Lee, Min-Cheol/Cho, Kyu-Hyuk
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Abstract
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Deaths from primary shock show few positive findings and are considered to be "negative." To provide some positive findings in the diagnosis of primary shock, rats were sacrificed by electrical stimulation of the vagus nerve and the lungs were examined lignt microscopically. As control groups, the lungs inflicted by asphyxia from tracheal ligation or hemorrhagic shock were compared with.
The results were as follows.
1. The lungs of the rats died from primary shock preserved a good histological architecture of the primary lobules; the alveolar ducts, atria, alveolar sacs and alveoli. The alveolar capillaries were mildly congested. Under a lower magnification view, the lungs appeared to be honeycombed.
2. The lungs inflicted by asphyxia from tracheal ligation showed considerable dilation of the structures of the primary lobules, giving irregular sieve-like appearance to the lungs. The alveolar capillaries were severely congested. These changes were more prominent in the central area than in the periphery along the visceral pleura.
3. The lungs inflicted by hemorrhagic shock had more irregular sieve-like appearance than those by asphyxia, due to marked dilatation of the alveolar ducts, atria, alveolar sacs and alveolei. The alveolar capillaries were anemic and collapsed.
4. Autopsy deaths from primary shock revealed the lungs with preservation of histological architecture and mild congestion of the alveolar capillaries, similar to those of the rats sacrificed by vagal shock.
From these results, it was suggested that the findings of the lung could provide morphologic basis for diagnosis of primary shock.
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