PubMed Health⌕ Search

Biomedical subjects

E Pirodda

Publications and source records attributed to E Pirodda.

30 records · Page 2Linked to original sources
PubMedDate not supplied

Some experiments on temporary threshold shifts produced by short tones.

TTSs produced by short (500-1000 msec) pure frequency (2000, 3000, 4000 c.p.s.) tones on normal young subjects show, under comparable conditions, the same essential characteristics as TTSs which follow longer stimulations. In particular, they show a tendency to a displacement of their maximal values, as soon as the stimulating tone is presented at adequately high (100 dB SPL) intensity levels, towards a frequency about a halfoctave higher than that of the stimulating tone. In our experiments, however, this tendency was more clearly and constantly demonstrable following stimulations with 3000 c.p.s. tones. Significant individual variations in quantitative aspects of the TTSs have been observed. It is suggested that the use of short tones may be easier and more applicable in practice in investigations concerning the after effects of acoustical stimulation and possible also in procedures aimed at obtaining a better understanding of the significance of individual variations in the behaviour of the receptor organ upon exposure to high intensity stimulations.

Acoustic Stimulation↗
PubMedDate not supplied

Investigations into vestibular evoked responses.

Acceleratory stimulations reproducing the characteristics of the physiological head rotation movement--a rotation by 90 degrees from the centre to the lateral position, or vice-versa, within a time space of 0.6-1 s--have been applied. Evoked responses were obtained from 34 normal individuals, the characteristics of which may be considered as sufficient proof of their essentially vestibular origin. No response was recorded in patients whose vestibular function was completely lost, bilaterally. A consistently reduced response has been observed in patients with unilateral complete loss of the vestibular function.

Adult↗
PubMedDate not supplied

[Acute epiglottitis in adults: a rare cause of acute respiratory insufficiency].

Acute epiglottitis is an infective disease which may have a rapid and aggressive course to total upper airway obstruction. Due to its rarity (mostly in adults) and aspecific initial clinical features, it may present diagnostic problems to less experienced medical personnel. This is the principal reason why the mortality rate is still unacceptably high. Indirect or direct laryngoscopy is mandatory for diagnosis: as this might be difficult for non-specialist physicians, their awareness of the potentially severe consequences of epiglottic infections is fundamental to minimizing diagnostic delay. In fact, early involvement of experienced ENT and anaesthesiological staff is essential for diagnosis, which must be as prompt as possible and followed by thorough clinical monitoring to avoid fatal outcome.

Acute Disease↗