Studies on asphyxia; on the changes of the alveolar walls of rats in the hypoxic state. III. The hypoxic state by carbon monoxide gas.

Experimental studies on asphyxia due to the hypoxic state produced by carbon monoxide gas were achieved. The morphological changes such as 1) faint pinkish homogeneous substance in the alveoli by H&E staining, 2) debris-like structure of medium electron dense substance on the surface of alveoli and/or full-filling the space of alveoli which were almost the same as observed in our previous reports except the appearance of a plenty of fibrin fibers in the debris-like structure and in part the close connection with myelin configurations as well.