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Biomedical subjects

F Aichner

Publications and source records attributed to F Aichner.

At least 73 records · Page 4Linked to original sources
PubMed1992

Hemodynamic findings in migraine patients on transcranial Doppler sonography.

Forty migraine patients were examined by means of 3D-transcranial Doppler scanning (TCD). The complete circle of Willis was investigated in all patients during headache-free intervals. TCD investigations were repeated in 10 patients during a migraine attack, in one patient twice. Based on the diagnostic criteria of the "headache classification committee of the international headache society" 23 patients were assigned to a "migraine without aura" group and 17 to a "migraine with aura" group. Twenty age-matched volunteers, not suffering from headache or any vascular disease, served as a control group. No significant differences were detected between the hemodynamic data of the control group and the migraine groups both with respect to the headache-free interval and the attack. No hemodynamic changes in keeping with the pathophysiologic hypothesis of vasospasm were found in the proximal segments of the basal cerebral arteries.

Adolescent↗
PubMed1992

Agenesis of the corpus callosum and epilepsy in two brothers. Neurophysiological and MRI features.

We report on two brothers with partial agenesis of the corpus callosum and seizure disorder presumably related to ectopic grey matter. Development of both patients was characterized by psychomotor retardation and focal epileptic seizures. Genetic examination revealed normal karyotypes. One brother showed a remarkable focal miniature spike and wave periodicity constantly observed on sequential EEG records. Magnetic resonance imaging revealed partial agenesis of the corpus callosum and ectopic grey matter. Prior computerized tomography failed to visualize ectopic grey matter and overestimated corpus callosum agenesis. The heterotopic grey matter, isolated from the surrounding inhibiting influences, is the most probable source of focal seizures and the partial connection of both hemispheres may explain secondary generalization of seizures.

Adult↗
PubMed1991

Intracranial germ cell tumor mimicking anorexia nervosa.

A previously healthy seventeen-year-old boy developed loss of weight, poor appetite, and aversion to food. Physical examination being normal, anorexia nervosa was suspected. Thirteen months later a CT scan revealed a mass in the third ventricle histologically proven to be a malignant teratoma. To our knowledge anorexia nervosa is only extremely rarely the presenting feature of intracranial germ cell tumors.

Adolescent↗
PubMed1991

Neuropsychological deficits in asymptomatic carotid artery stenosis.

A total of 20 subjects with asymptomatic carotid artery stenosis (ACAS) and a group of healthy controls were compared as to their cognitive performance. Subjects with ACAS showed substantial deficits on tasks of mental speed, learning, visuospatial abilities, verbal processing and deductive reasoning. The cognitive profile of ACAS--subjects indicated non-specific impairment, possibly related to widespread cerebral vascular disease, of which the presence of ACAS may be one indicator.

Brain Ischemia↗
PubMed1991

Principal advantages of CNS diagnostics by magnetic resonance imaging.

In this paper the authors present the principal advantages and values of CNS diagnostics by magnetic resonance imaging (MRI), on the basis of the data from the available literature as well as on the 3-year experience of the MRI Institute in Innsbruck. Also, qualitative advantages of MR 1.5 T over other, less powerful machines, have been emphasized. So far, the experience has proved that, for the moment, the 1.5 MR machine offers optimal characteristics for the diagnostics of the CNS diseases.

Adult↗
PubMed1989

Doppler and duplex sonography of the cervical arteries and correlations with other examinations. A field study in a population over forty years.

Of the population of a small Tyrolean village, 185 (56%) of the 329 inhabitants over 40 years were investigated by means of Doppler and duplex sonography, electroencephalography (EEG), electrocardiography (ECG), and neurological examination. Four subjects (2%) previously had a transitory ischemic attack (TIA) or stroke in the carotid territory. Sonographically detectable abnormalities in one or more extracranial arteries were present in 42 (23%) persons. Of the 14 subjects with more than slight abnormalities in the common or internal carotid artery two were symptomatic. Two additional cases with TIA or stroke did not show relevant lesions on sonographic examination. The presence of narrowing in the extracranial artery was not related to risk factors (hypertension, smoking, obesity) or abnormalities on ECG and EEG. This study shows 1) that the clinical relevance of ultrasound screening of the carotid arteries in an average population is 15%; 2) that significantly more patients with TIAs or strokes are found in the group with more severe sonographic findings (p = 0.001) than in the group with normal ultrasound results.

Carotid Arteries↗