In order to develop a quick and reliable clinical method for recording counter-rolling as an indicator of the otolith function, 14 normal persons were investigated by both an objective and a subjective recording method. For the objective recording a goniometer ocular on a Zeiss microscope was used, and for the subjective method, a luminous cross, manipulatable along the three axes of the space. The results show that the objective recording is much more reliable and better reproducible than the subjective, and is consequently a good and quick recording method for clinical investigation of counter-rolling.

Ear, Inner↗

PubMedDate not supplied

Pharmacotherapy in tracheal stenosis.

From our experience in the treatment of immunological diseases with a tendency to the formation of granulomas, we conceived the idea of treating pharmacotherapeutically the scar-tissue formation in recurrent tracheal stenosis. We have combined two medicines with different modes of action, namely, klorokin and penicillamine. Two patients with recurrent tracheal stenosis have been treated with remarkable results. After several unsuccessful operations it has now been possible to decannulate both of them and enable them to regain a normal way of living.

Aged↗

PubMedDate not supplied

Clinical investigation of the efferent inhibition of the vestibular function.

We have investigated the modulation of nystagmus in homo by rotating dizzy patients with constantly increasing acceleration according to a certain computerized scheme or by oscillation with a triangular waveform. We found that the modulation varied greatly in different patients. We saw all variations between hyperreflexive patients, completely lacking inhibition and are flexive patients with a hyperactive inhibition which, however, could be broken by asking the patient to count backwards simultaneously. Habituation of hyperreflexive patients completely lacking their inhibition allowed a normal capacity to habituate. This indicates that there are two different inhibition systems, one fast, appearing during intensive nystagmus and showing a short duration, short time constant (STC), high gain and high reaction readiness, and another type, which is slow and habituating and coming first after iterated stimuli, having a long duration, long time constant (LTC), low initial gain and low reaction readiness. The first type seems to be initiated in higher centres, the second has its effect on the peripheral labyrinth.

Acoustic Stimulation↗