Experiments on parachute jumps proved that the lack of oxygen and the low atmospheric pressure at 12 or 13 km. altitude did not cause death. Altogether 15 extreme experiments of this type were carried out in which none of VP’s died. Very severe bends together with unconsciousness occurred, but completely normal functions of the senses returned when a height of 7 km. was reached on descent. Electrocardiograms registering during the experiments did show certain irregularities, but by the time the experiments were over the curves had returned to normal and they did not indicate any abnormal changes during the following days. The extent to which deterioration of the organism may occur due to continuously repeated experiments can only be established at the end of the series of experiments. The extreme fatal experiments will be carried out on specially selected VP’s, otherwise it would not be possible to exercise the rigid control so extraordinarily important for practical purposes.
The VP’s were brought to a height of 8 km. under oxygen and then had to make 5 knee bends with and without oxygen. After a certain lapse of time, moderate to severe bends occurred and the VP’s became unconscious. However, after a certain period of accustoming themselves to the height of 8 km. all the VP’s recuperated and regained their consciousness and the normal functions of their senses.
Only continuous experiments at altitudes higher than 10.5 km. resulted in death. These experiments showed that breathing stopped after about 30 minutes, while in 2 cases the electrocardiographically charted action of the heart continued for another 20 minutes.
The third experiment of this type took such an extraordinary course that I called an SS physician of the camp as witness, since I had worked on these experiments all by myself. It was a continuous experiment without oxygen at a height of 12 km. conducted on a 37-year-old Jew in good general condition. Breathing continued up to 30 minutes. After 4 minutes the VP began to perspire and to wiggle his head, after 5 minutes cramps occurred, between 6 and 10 minutes breathing increased in speed and the VP became unconscious; from 11 to 30 minutes breathing slowed down to three breaths per minute, finally stopping altogether.
Severest cyanosis developed in between and foam appeared at the mouth.
At 5-minute intervals electrocardiograms from three leads were written. After breathing had stopped, the electrocardiogram was continuously written until the action of the heart had come to a complete standstill. About ½ hour after breathing had stopped, dissection was started.
Autopsy Report
When the cavity of the chest was opened the pericardium was filled tightly (heart tamponade). Upon opening of the pericardium 80 cc. of clear yellowish liquid gushed forth. The moment the tamponade had stopped, the right auricle began to beat heavily, at first at the rate of 60 actions per minute, then progressively slower. Twenty minutes after the pericardium had been opened, the right auricle was opened by puncturing it. For about 15 minutes, a thin stream of blood spurted forth. Thereafter clogging of the puncture wound in the auricle by coagulation of the blood and renewed acceleration of the action of the right auricle occurred.
One hour after breathing had stopped, the spinal marrow was completely severed and the brain removed. Thereupon the action of the auricle stopped for 40 seconds. It then renewed its action, coming to a complete standstill 8 minutes later. A heavy subarchnoid oedema was found in the brain. In the veins and arteries of the brain a considerable quantity of air was discovered. Furthermore, the blood vessels in the heart and liver were enormously obstructed by embolism.
The anatomical preparations will be preserved and so I shall be able to evaluate them later.