Search PubMed⌕ Search

Biomedical subjects

U Fisch

Publications and source records attributed to U Fisch.

At least 145 records · Page 8Linked to original sources
PubMed1978

[Surgical restitution of function after laryngectomy (author's transl)].

A surgical technique aiming to the reconstruction of the phonatory and respiratory function after laryngectomy is presented. This technique, which is performed in three stages, utilizes a deltopectoral flap, containing autogenic or allogenic cartilage, as a laryngeal substitute. To date, 13 patients have been submitted to this operation. Although both laryngeal functions, respiration and voice, were restored only in one patient, further refinements of the utilized surgical procedure may contribute to solve the problem of a complete functional rehabilitation after total laryngectomy.

Adult↗
PubMed1977

[Microsurgery of the temporal bone (author's transl)].

Microsurgery of the temporal bone has opened a new frontier in otology, neurosurgery and head and neck surgery. The operative approaches used to reach the most hidden supra-, retro-, infra- and premeatal regions of the temporal bone are described and their surgical uses are illustrated. Particular attention has been paid to the subtotal petrosectomy with permanent anterior transposition of the facial nerve and is indicated for the extirpation of large infra- and premeatal tumors as well as for the repair of sub- and infratemporal aneurysms of the internal carotid artery.

Aneurysm↗
PubMed1977

Experimental extracranial-intracranial anastomosis.

A new experimental model for the study of extracranial-intracranial anastomosis has been developed. Canine external ethmoidal arteries have been anastomosed to the middle cerebral arteries. A 100% patency rate has been achieved ten days after operation. The surgical techniques are described. Using this model, we studied the changes of cortical intraarterial pressure and tissue O2 tension under a variety of conditions. From the results of this experiment, it is concluded that the restoration of the cortical intra-arterial pressure may be expected after anastomosis, that tissue O2 tension value depends upon restoration of the cortical intra-arterial pressure in the acute stage, and that O2 and CO2 inhalations have little effect on the brain ten days after middle cerebral arterial occlusion in spite of recovery of intra-arterial pressure with anastomosis. The experimental results suggest that the restoration of the intra-arterial pressure after anastomosis may be of no use in supplying oxygen to ischemic cortex in the chronic stage because of dysfunction of the cortical microvasculature.

Animals↗
PubMed1976

[Morbus Menière and acousticus-neurinoma (author's transl)].

It is questionable whether a hydrops endolymphaticus can develop on the basis of an acousticus-neurinoma. Histological evidence is also lacking. The fact that an acousticus-neurinoma can very rarely lead to the classical symptoms of Menière's disease has practical consequences. If a significant decrease in caloric function and an asymmetry in the inner ear ducts exist, a meato-cisternography is indicated. In the meato-cisternogramme typical filling defects are found; but also in 50% of the patients with Menière's disease, certain types of filling defects are seen. This observation suggests that perhaps other pathological processes in the inner ear duct provoke symptoms similar to those of Menière's disease. In our patient material we have indications that isolated intrameatal liquor circulation disturbances and intrameatal angioma are much more often associated with the clinical symptoms of Meniere's disease than an acousticus neurinoma.

Ear Neoplasms↗
PubMed1976

[Surgical treatment of morbus Menière (author's transl)].

Surgical treatment is only indicated if the medical treatment is not successful. From 409 patients an operation was only necessary in 90 cases. Only those operations for which there is a long period of experience were mentioned. The early stage of the disease with a fluctuating hearing loss is reversible. It is the stage in which saccotomy with myo-synangiosis is indicated. A follow-up study of about 5 years ago showed that vertigo disappeared in 48% of cases. The hearing remained unchanged in 48% and decreased in 52% of cases. The tinnitus was completely relieved in 8% and the fullness of the ear in 56%. One patient had a total hearing loss after the operation. The different techniques of saccus operations, including the endolymphatic shunts, had all the same results and seemed therefore not to be specific. In the late stage of the disease the neurectomy of the vestibular nerve by transtemporal approach is most successful, especially when it is combined with an excision of Scarpa's ganglion. A 5 year follow-up study of 52 cases showed that 94% were without vertigo. Hearing was improved in 16% and unchanged in 64%. The tinnitus was gone in 33% and the fullness of the ear in 47%. Complications were hearing loss in 4%, a transitory facial paralysis in 3% and an incomplete compensation of vestibular function in 20%. Compared with the labrinthectomy the translabyrinthine neurectomy is an advantage. The results are similar to those of the vestibular neurectomy with the exception of total hearing loss, but the translabyrinthine approach, or cochleo-vestibular neurectomy is only indicated in cases of complete deafness.

Ear, Inner↗
PubMed1976

Cross-face grafting in facial paralysis.

I report the two-year follow-up results obtained by cross-face grafting in seven patients. The advantages of the method, ie, reduction of innervation of the healthy side of the face and restoration of emotional movements of the paralyzed side, are counterbalanced by the long delay in reinnervation and the limited number of motor fibers available for matched contralateral diversion. For this reason, cross-face grafting should still be considered as an experimental stage and should not be used in an indiscriminate way to achieve symmetry of emotional movements in irreversible unilateral facial palsy.

Adolescent↗
PubMed1976

Schirmer's test: its normal values and clinical significance.

The lacrimal secretion in 99 healthy individuals has been measured by Schirmer's method. The established statistical limits of normal lacrimal secretion were tested in 18 patients submitted to geniculate ganglionectomy because of petrosal neuralgia, in 15 patients with traumatic, in 17 patients with idiopathic, and in 10 patients with herpetic facial palsy. A significant bilateral reduction of lacrimation was found to be as indicative for a unilateral interruption of the parasympathetic iaring. Abnormal unilateral and bilateral values of lacrimation were present in 93% of the traumatic, in 53% of the idiopathic, and in 60% of the herpetic facial palsies respectively. There is evidence that a significantly disturbed lacrimal flow has not only topographic, but also prognostic value in facial nerve palsy.

Adolescent↗
PubMed1976

[Guidelines for the treatment of facial-nerve injuries].

The electroneuronographic registration of the summating potentials of the face muscles has been used to assess the prognosis in 72 traumatic facial nerve lesions. The following guide-lines have evolved from the experience gained: (1) a conservative attitude is indicated if the degeneration of the motor fibus is less than 90% 6 days following onset of the palsy and (2) a surgical revision of the facial nerve is indicated if the degeneration of the motor fibres reaches more than 90% during the first 6 days following onset of the palsy. The clinical differentiation in early and delayed traumatic facial palsy cannot be used as a prognostic sign. The amount and rapidity of degeneration of the motor fibres has more prognostic value than the latency between trauma and onset of the palsy. The importance of electroneuronography for the prognosis of iatrogenic facial nerve lesions as well as the value of a careful follow-up of regeneration in facial nerve lesions with preserved continuity of the nerve are discussed.

Action Potentials↗
PubMed1976

[Tissue adhesives in facial-nerve surgery].

Large amounts of the tissue glue Histoacryl applied over the circumference of the epi- and perineurium of the facial nerve produced a rapid decrease of the summation potentials of the face in acute and chronic experiments performed in cats and guinea pigs. No toxic action on the motor neurons of the facial nerve was seen after application of 1 or 2 drops of the tissue glue over the epi- or perineurium of the facial nerve in association with or without a collagen tube splint.

Animals↗
PubMed1976

[Reconstruction of tumor defects in the oral cavity and mesopharynx].

A superiorly based cervical skin flap (eventually including the sternocleido-mastoid muscle) has been used in combination with a deltopectoral flap for the one-stage reconstruction of large defects of the oral cavity and mesopharynx. The results obtained in 17 patients show that the presented method is of particular value in cases presenting with unfavorable tissue conditions resulting from heavy irradiation.

Head and Neck Neoplasms↗