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Biomedical subjects

N Avman

Publications and source records attributed to N Avman.

8 recordsLinked to original sources
PubMed1988

Experimental cerebral vasospasm: resolution by iloprost.

A new stable analogue of prostacyclin, iloprost, was tested on the basilar artery of anaesthetized rabbits constricted by electrical stimulation and intracisternal injection of autologous blood. The vasospasm induced by these stimuli was effectively relieved (about 100%) by topical application of iloprost, a stable analogue of prostacyclin (PGI2), and no constriction occurred on further stimulation within one hour. The mechanisms of the action of iloprost and its possible therapeutic value in subarachnoid haemorrhage are discussed.

Animals↗
PubMed1985

Effectiveness of radiofrequency thermocoagulation in recurrent trigeminal neuralgia after previous retrogasserian rhizotomy.

Between 1974 and 1984, 428 trigeminal neuralgia cases were treated by controlled radiofrequency thermocoagulation (RFTC). 29 had recurrent trigeminal neuralgia after intracranial surgery. 26 of the 29 patients were treated by retrogasserian rhizotomy and 3 by posterior fossa exploration. Among the 26 recurrent trigeminal neuralgia following retrogasserian rhizotomy, RFTC was effective in 23 cases (88.5%), and in 3 cases (11.5%) RFTC was effective for a short period. Repeated RFTC was unable to control the pain attacks which were later relieved by posterior fossa exploration and root section. Of the 3 recurrent trigeminal neuralgia following posterior fossa exploration, RFTC was effective in 2 cases (66.6%).

Adult↗
PubMed1979

Third ventriculostomy by microtechnique.

The microtechnical approach to third ventriculostomy is presented. Opening of the lamina terminalis and basal membrane of the floor of the third ventricle is combined with opening of the membrane of Liliequist. The technique was used in five cases of aqueductal stenosis. We stress the importance of the microscope, and opening of the membrane of Liliequist to gain additional access.

Adolescent↗
PubMed1979

Aneurysm and arteriovenous malformation of the spinal cord.

A case is presented in which microsurgical technique was used to excise an intramedullary vascular lesion of the spinal cord. This kind of vascular pathology is uncommon. In this case, a radical excision of the malformation was obtained using the microscope. What appeared to an associated intramedullary aneurysm was totally removed.

Adult↗
PubMed1978

Meningiomas of the third ventricle.

Intraventricular third ventricle meningiomas are very rare. Fourteen cases have been previously reported. We present a case of third ventricle meningioma, and discuss aetiology, pathology, symptoms, signs, position in the ventricle, and surgical approaches.

Cerebral Ventricle Neoplasms↗
PubMed1978

Pituitary pseudotumor.

Non-tumoral aqueductal stenosis with hydrocephalus causes dilatation of the third ventricle. This in turn may compress the hypothalamus and optic nerves and erode the clinoids and enlarge the sella turcica. In female patients, amenorrhea or oligomenorrhea is the predominant endocrinologic symptom. Symptoms usually disappear after the drainage of cerebrospinal fluid. Third ventriculostomy by microtechnique was used for operative treatment of our three cases. In all of these, the hydrocephalus was arrested.

Adolescent↗