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Biomedical subjects

K Pardatscher

Publications and source records attributed to K Pardatscher.

At least 37 records · Page 2Linked to original sources
PubMed1982

[Computerized tomography in diffuse post-traumatic brain damage].

Among 851 patients admitted following a head injury at the Neuroradiological Service and Neurosurgical Department of the University Hospital of Padua from January 1979 to June 1981, 51 presented a diffuse damage of the white matter of the brain. The CT scan, the only neuroradiological method able to show such a lesion, does never reveal large lesions but only minimal alterations of the cerebral parenchyma, opposite to the severity of clinical picture. We discuss the etiopathogenetic, anatomopathologic and neuroradiologic aspect of diffuse brain damage, emphasizing, the technical difficulties in the demonstration, on CT scan, of some lesions, particularly at the level of the brainstem.

Adolescent↗
PubMed1981

Posttraumatic intraventricular haemorrhages.

Of a series of 350 patients studied for blunt head trauma by CT scan 10 were found to have an intraventricular haemorrhage (IVH); in 8 cases we could find concomitant CT abnormalities as well as intracerebral contusion or haemorrhage, and in two cases no other CT abnormality was noted. CT scan represents the first reliable and non-surgical tool for identifying this process. Two possible mechanisms that govern the formation of an IVH are postulated: a) an erosion of the ventricular wall by an intracerebral haemorrhage; b) the rupture of subependymal veins deformed by the negative pressure following dilatation of the ventricular wall. The prognosis in our cases is severe.

Adolescent↗
PubMed1981

[The diagnostic value of the CT scan in subarachnoid haemorrhage from intracranial aneurysms (author's transl)].

Fifty cases of subarachnoid haemorrhage from aneurysms are reported. Computer tomography gave direct evidence of aneurysm in 13 cases and indirect signs in 25 cases. In the remaining 12 cases the aneurysm could not be located. Apart from this we were able to demonstrate 16 intraventricular haemorrhages, 16 intracerebral haemorrhages, six cases of oedema of the brain, nine subarachnoid haemorrhages and, finally on 31 occasions enlargement of the ventricles. The role of the CT scan has been investigated in terms of its value in the planning and execution of surgical treatment.

Brain Edema↗
PubMed1981

Gliomas of the optic nerve and chiasm. A clinical review.

A series of 24 children with anterior optic gliomas, observed and for the most part operated upon in a neurosurgical service, is reviewed. A low incidence of unilateral nerve tumors and of associated neurofibromatosis, and a rather high frequency of precocious or pseudoprecocious puberty were noted in comparison with other series. Most tumors were low-grade growths. The results of surgical treatment reflect a good prognosis for unilateral tumors and an increasing prognostic ominousness for the posterior neoplastic development. Cerebrospinal fluid shunts and radiation treatment do have a role as adjuncts to surgical exploration and biopsy, which are generally indicated since no preoperative test seems to grant an absolute diagnosis. The opinion that chiasmal tumors should not be treated at all is not shared. When the treatment of an illness falls as far short of the ultimate, as does the therapy of neoplastic disease, then it is necessary to reconsider frequently the principles upon which it is based and the results it achieves. These results are two-fold, curative and palliative and, while our efforts are directed toward the former, we realize only too frequently that the best results will sometimes lie in palliation. The disappointment in accepting this lesser goal must not allow us to underestimate its importance or neglect the help it may give.

Adolescent↗
PubMed1981

Cerebral arteriovenous malformations in children (56 cases).

A survey of 56 patients aged less than or equal to 16 years, admitted (1954-1979) for cerebral arteriovenous malformations, is presented. The clinical manifestation was mostly related to hemorrhage, less frequently to epilepsy or to a cerebral 'steal' syndrome. The most frequent site was the parietal lobe, with supply from the middle cerebral artery. Deep malformations were not uncommon and most lesions were of medium or large size. 38 patients were operated upon, and 18 were given treatment other than surgical (including radiotherapy). 23 malformations were completely excised, in 4 patients only a partial excision could be carried out, and in 10 patients surgery consisted of occlusion (clipping or coagulation) of feeding vessels. In 1 patient, surgery had to be limited to removal of an intracerebral hematoma. The immediate and long-term results of treatment are much better in the surgical than in the nonsurgical group.

Adolescent↗
PubMed1981

[The CT-scan and hypocycloidal cysternography with water soluble non ionic contrast media (metrizamide and iopamidol) in sellar and parasellar lesions (author's transl)].

A group of 30 patients with sellar or parasellar lesions were investigated by CT-scan and hypocycloidal tomography after lumbar injection of water-soluble non ionic contrast media. The combination of the 2 techniques (CT-scan and tomography) allowed very satisfactory diagnostic results and the excellent tolerance of non-ionic contrast was confirmed in this patient series.

Adolescent↗
PubMed1980

Primary brain stem haematomas. Diagnosis and treatment.

Case histories are reported of 18 patients in whom the diagnosis of primary brain stem haematoma and brain stem haemorrhage was made by computed tomography (CT). The possibility of an early diagnosis of brain stem haematoma, and the differential diagnosis of brain stem haemorrhage by a combination of clinical and tomodensitometric criteria is emphasized. It is concluded that CT is a highly reliable method for the diagnosis, location, and management of brain stem haematoma.

Brain Stem↗
PubMed1980

Anterior optic gliomas with precocious or pseudoprecocious puberty.

5 patients with gliomas of the anterior optic pathways, histologically assessed or with strong diagnostic evidence, who developed precocious or pseudoprecocious puberty (2 cases) before the operation or after radiation treatment, are presented. Only 2 patients presented familial and/or personal evidence of neurofibromatosis. The production mechanism of these sexual changes is discussed.

Adolescent↗
PubMed1980

Clotting changes in two patients with longitudinal sinus thrombosis.

Two patients with angiographically proven longitudinal sinus thrombosis were studied from a coagulation point of view. In the first case, marked primary thrombocytosis was found. This patient was treated with aspirin, dipyridamole and radioactive phosphorus. In the second case, fibrinogen and whole blood plasma viscosity were elevated. This patient developed deep vein thrombosis of the left leg a few weeks after the cerebral episode and was treated with coumarin drugs. The importance of a coagulation study in every patient with cerebral vein thrombosis is emphasized.

Adult↗