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KMID : 0438219720090020157
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Korea University Medical Journal
1972 Volume.9 No. 2 p.157 ~ p.171
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An Experimental Study on the Distribution of Planctons in the Lungs and Pleural Cavities of the Drowned and the Non-drowned
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Abstract
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An ascertainment of drowning has been one of the most important subject in legal medicine and many authors have concentrated their efforts on this subject. Among these, especially the demonstration of planctons from the various organs by the disorganization method is of definite importance in establishing the cause of death of cadaver found in the water. But to perform this method, time consuming autopsy is required. Observation of plancton count in the lungs and pleural cavities by needle aspiration without autopsy would play an indispensable part in distinguishing between drowned and non-drowned. The author has conducted a series of experiments on the three groups of rapid drowned, delayed drowned and non-drowned.
The following results were obtained.
1. Both in the rapid and delayed drowned groups, planctons were detected in the pleural cavities, and there were larger number in right side than left side.
2. In non-drowned group, the planctons were not found in the pleural cavities, however, planctons were found in the pleural cavities of putrefacted cases which were added more than 2kg pressure in the water.
3. The number of planctons in the pleural cavities revealed tendency to increase from 1 week after death in the rapid and delayed drowned groups.
4. The largest number of planctons were detected in the both right and left lower lobes of the lungs in both rapid and delayed drowned groups.
5. The above findings of planctons in the pleural cavities and lungs are believed eventually to contribute to the actual differentiation between the drowned and the non-drowned.
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