J.Jpn. Surg. Soc.. 61(1): 141-155, 1960

---

EXPERIMENTAL STUDYS ON THE CSF PRESSURE IN THE EARLY STAGE OF HEAD INJURYーPARTICULARLY ITS RELATION TO APNEA

The CSF pressure at the time of experimental head blow was invented to make the head injury by producing the rapid change of CSF pressure. The following results were obtained:
1) Cisternal puncture was made with a needle which is connected to the manometer. Right after head blow, there happens remarcable fluctuation of CSF pressure in all cases. After this fluctuation some cases do not have any change in CSF pressure, some have gradual elevation and some show rapid elevation to unlimited heights. The third one always have massive intracranial bleeding following the first fluctuation is not necessary factor for the rapid cease of respiration, because the cases which expired from the rapid apnea do not always have the elevation of CSF pressurs.
2) Experimental head injury was made by dropping a weight from certain heights on the balloon which is connected to the cisternal space with polyethylen tube and filled with normal saline. After the blow on the balloon the animal shows just the same symptoms as the head injury and some of them show the rapid apnea.
(Author's abstract)

---

---

To read the PDF file you will need Adobe Reader installed on your computer.