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Biomedical subjects

M Samii

Publications and source records attributed to M Samii.

At least 55 records · Page 3Linked to original sources
PubMed1979

[Neurosurgical aspects of the treatment of acoustic neurinoma with special consideration of the facial nerve (author's transl)].

The decisive progress in the field of surgical treatment of acoustic neurinomas has occured after the introduction of the operating microscope. This is a survey of the microsurgical treatment of cerebellopontine angle tumors with special emphasis of the facial nerve and demonstration of individual cases. Moreover, the technique of the dissection and preservation of the continuity of the facial nerve during removal of a tumor is analysed. The possibilities of reconstructive surgery of an end-to-end suture or nerve graft in case of facial nerve lesions after removal of a tumor are discussed.

Cranial Nerve Neoplasms↗
PubMed1978

[Indication and treatment of frontobasal rhinoliquorrhoea from the ent-surgical and neurosurgical point of view (author's transl)].

This paper deals with some special questions based on joint neuro-rhinosurgical diagnostic and treatment of frontobasal injuries with rhinoliquorrhoea. The indications of the rhinosurgical transfronto-orbital approach with debridement of paranasal sinuses in the same stage are defined. Detailed technical instructions are given for treatment of "midline fractures". The transfrontal intradural approach of the neurosurgeon should be prefered: 1. If there is rhinoliquorrhoea combined with an extensive fracture of anterior skull base. 2. In cases of frontobasal liquor fistual--no matter of localisation and extension--with increasing spaceoccupation should the intracranial decompression be combined with duraplasty. Cerebral lesions with no progressive intracranial pressure should be treated first of all conservatively. The operative treatment of paranasal sinuses is not necessary in every case after transfrontal intradural surgery. X-ray controls have shown the spontaneous healing.

Cerebrospinal Fluid Rhinorrhea↗
PubMed1977

[Chondrosarcoma with intraspinal, intra- and extrathoracal extension (author's transl)].

A case of intraspinal, intrathoracic, and extrathoracic chondrosarcoma is described, and the literature is critically examined. Despite apparently total extirpation by the neurosurgeons and thoracic sugeons of a tumour that was identified histologically as a chondroma, there was an early recurrence noted to be obviously malignant at the second operation. Diagnosis and therapy are discussed briefly.

Adult↗
PubMed1977

[Otorhinolaryngological-neurosurgical problems on the skull base (author's transl)].

Adequate tumour surgery on the skull base is, because of the close connection with vital blood vessels and nerve structures, difficult and full of risks. From six rare cases, an account is given here, of experiences which were gained by the combined ENT and neurosurgical team work. Singularly, the approach to processes of the frontal, middle and hind skull base is discussed. Through diagnosis, and when indicated, combined operative team work between the Otolaryngologist and the Neurosurgeon, using microsurgical operative techniques, reorganizational advancements regarding the maintenance of function and functional reconstruction, in the surgery of the base of skull, are possible. Under this aspect, endeavors must be made in this area, by slow growing benign new growths, to establish an early diagnosis, and the earliest possible operation, thus promoting the chances of preservation of the remaining undamaged blood vessels and nerve structures.

Adolescent↗
PubMed1976

Quantitative study of muscle fibre atrophy and restitution after nerve grafts.

Our comparative experimental studies on rabbits using clinical, electromyographical, and quantitative histological examinations of long autologous and homologous nerve grafts in 35 rabbits, paying special attention to quantitative histological changes in the gastrocnemius muscles, allow the statement that, compared to the short holografts, the long homografts showed worse results. Moreover, it became obvious that the regeneration rate of autografts was not influenced by increasing the lengths of the grafts. The answer to the question of how far even longer grafts may influence the quality of regeneration will need further investigations.

Animals↗
PubMed1976

[Intraneural neurolysis of the median nerve in carpal tunnel syndrome].

Out of 250 neurolyses with microsurgical technique in the past six years 51 performed in carpal tunnel syndrome. The nerve compression was caused in most cases by unspecific sclerotic and fibrous tendovaginitis with pathologic changes of the nerve by adhesions between epineurium and tendon sheath. One patient showed a tuberculous tenosynovitis. In 20% of the patients no visible changes of the nerve was found during operation (stage I), while more than 50% showed slight compression (stage II) and 25% severe compression. Postoperatively the clinical examination including some special tests for function revealed in almost all cases a normalization of sensibility and motor function.

Carpal Tunnel Syndrome↗
PubMed1975

[Pantopaque-myelographic findings in brachial plexus root avulsion (author's transl)].

The myelograms of 7 patients with traction injury of the brachial plexus are compared with the operation findings. It appears that not only the roentgenological sign of the "traumatic meningocele" but also other myelographic abnormalities are to be considered as indications of a nerve root lesion. These changes are demonstrated. The myelogram of a 6-months-old child showing a nerve root avulsion due to birth trauma is represented. Myelographic examination of each patient with posttraumatic brachial palsy should be performed as soon as possible. A sufficient myelographic diagnosis of the nerve root lesion can be achieved only in considering also the less impressive radiological signs.

Accidents, Traffic↗