PubMed Health⌕ Search

Biomedical subjects

A Pech

Publications and source records attributed to A Pech.

At least 91 records · Page 5Linked to original sources
PubMed1979

[The enlarged trans-labyrinthine approach of House. The use of this method in the surgical treatment of cerebello-pontine angle tumours (author's transl)].

The authors report a series of 43 cases of cerebello-pontine angle tumours operated by an oto-neuro-surgical team. The approaches used were, once the supra-petrous approach, twice the posterior fossa, 12 times a combined trans-labyrinthine and posterior fossa approach, and 28 times the enlarged trans-labyrinthine route. This last approach, which is now being used exclusively for the last two years, is described in detail. Forty-three tumours operated on broke down into 40 neurinomas, 2 meningiomas and 1 malignant melanoma. The size of the tumours varied from 1 cm to 11 cm in diameter. Overall statistics show 9.3% of deaths and 65% of functioning facial nerves. The statistics for the nelarged trans-labyrinthine route (the last 28 cases) are: 10.7% of deaths and 75% of functioning facial nerves. In the enlarged trans-labyrinthine route, there is no complication and no mortality in the small and medium-sized tumours, i.e. up to 4 cm in diameter.

Cerebellar Neoplasms↗
PubMed1979

[Acoustic neurinomas. Trans-labyrinthine approach (author's transl)].

The authors, supporters of a tight oto-neuro-surgical collaboration, show their tactical evolution in front of acoustic neurinomas which they operated at first in two stages, trans-labyrinthine then sub-occipital, and now they approach only by trans-labyrinthine way. They report their experience and their results to the point of a first serie of 30 cases : 10 combined approaches in two stages, and 20 trans-labyrinthine approaches. The mortality (3 cases-10%) for this first serie is still raised. One patient, after a softening of the pons, maintained important sequelles. On the other hand, among the remaining 26 patients, 13 kept a normal facial motricity and 5 recovered but with syncinesis. These first results are still perfectible : among the 20 last cases only trans-labyrinthine approached the facial nerve preservation was realised in 72% of the cases. The most frequent surgical complication is a cerebro-spinal fluid leak (7 cases) which fortunately the most often spontaneously dry up (6 cases) but which justify a very attentive closure technic. The authors show the arguments which convinced them of the interest of the trans-labyrinthine approach such it is done by W. House.

Adult↗
PubMed1976

[Experimental study of vestibular neurectomy].

The authors describe an experimental study carried out on baboons. After unilateral vestibular neurectomy, the behaviour disorders on the one hand, and on the other, modifications and temporal development of reflex muotatic excitability of the spine using Hoffmann's reflex method are analyzed. As far as behaviour is concerned, a four-day period of motor restriction following the operation causes more marked residual disorders in comparison with controls. From the neurophysiological point of view, neurectomy results in seriously disordered spinal reflexes characterized by ipsilateral hypo-excitability developing in there stages: a tw-day initial critical phase during which the disorders are at their worst, a four-day recuperative stage with partial regression of the disorders, finally a chronic compensation stage in which spinal excitability returns to normal after several months.

Animals↗