Biomedical subjects

W Liebert

Publications and source records attributed to W Liebert.

23 records · Page 2Linked to original sources

PubMedDate not supplied

[Factors contributing to recurrence of intracranial meningiomas and indications to postoperative radiotherapy].

The incidence of various histological subtypes of intracranial meningiomas and recurrences was examined in 565 patients with surgically treated meningiomas in the Department of Neurosurgery in Poznań, between 1960-1992. Approximately 60% of the tumours were located on the convexity (39.5%) and parasagitally (23%). Histological diagnosis in 88% of the patients was endotheliomatous (61%), fibroblastic (17%) and angiomatous (10%) meningiomas. The incidence of recurrence after complete removal of the meningioma was 7% for all sites, but much higher after partial removal. Among the recurrences, there was a higher degree of malignant and angiomatous subtypes. Surgery is the accepted form of treatment for meningiomas but it may prove insufficient as the only method of therapy in certain situations. Implications for the potential role of postoperative radiation therapy are discussed.

Adolescent↗

PubMedDate not supplied

[Aneurysm situated within the optic nerve].

A case of carotid-ophthalmic aneurysm of unusual location in the optic nerve is reported. The development of the disease was sudden: pain in the eye was followed by unilaternal blindness and manifestations of subarachnoid haemorrhage. The optic nerve was dilated balloon-like, cyanotic and vigorously pulsating. It was divided longitudinally and the aneurysmatic sac was exposed from the nerve. A vascular clip was put on its peduncle communicating with the cervico-ophthalmic portion of internal carotid artery. Despite preserved patency of the ophthalmic artery and partial continuity of the optic nerve, the vision of the eye didn't improve.

Blindness↗

PubMedDate not supplied

[Post-traumatic cerebrospinal rhinorrhea managed surgically. Clinical analysis of cases].

47 patients was treated surgically for posttraumatic cerebrospinal fluid rhinorrhea between 1977 and 1996 in the Department of Neurosurgery in Poznań. Cerebrospinal fluid fistula developed after road accident, less often because of assault, fall etc. Frontobasal fracture usually caused rhinorrhea and was verified by plain X-rays, computed tomography and magnetic resonance. Indications to early surgery were rhinorrhea coexisting with intracranial haematoma or pneumocephalus, optic nerve lesion, the persistent or recurrent rhinorrhea and meningitis. The authors present surgical methods and postoperative complications. Good outcome was in 86%.

Adult↗

PubMedDate not supplied

[Central neurocytoma of the right parietal and occipital lobe. Case report].

Central neurocytoma is a rare tumour of the CNS. It typically occurs in intraventricular location in young adults. The authors describe central neurocytoma in a 17-year-old woman, which was situated unusually for this type of tumour in the brain parenchyma. In this paper radiological and histopathological picture is presented.

Adolescent↗

PubMedDate not supplied

[Conservative treatment of cerebral arteriovenous malformations. Follow-up study of 31 cases].

The clinical course of 31 patients with conservatively treated intracranial arteriovenous malformations (AVM's) was followed-up. The average follow-up period was 8.2 years, 75% of patients were followed up for more than 5 years. The initial symptom was intracranial bleeding in 21 patients (68%), seizure in 5 (16%), neurological deficit in 2 (6.5%), headache in 2 (6.5%) and intracranial hypertension in 1 (3%). The prognosis was more favourable for patients presenting with seizures than for patients presenting with haemorrhage. Patients in the haemorrhage group had 29% incidence of haemorrhage causing 14% mortality in this group. Of the 31 patient's 20 (64.5%) had a good clinical outcome, 4 (13%) had a fair outcome and 2 (6.5%) poor, 5 patients died, with one not due to AVM. There was no correlation between pregnancy and bleeding.

Adolescent↗