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A Lütcke

Publications and source records attributed to A Lütcke.

27 records · Page 2Linked to original sources
PubMed1982

[Perceptibility and differentiation of local effects-comparison between Hjorths source-derivation and conventional recordings (author's transl)].

Using Hjorths source derivation for more than four years 1034 routine EEG were evaluated by means of a classifiying evaluation-sheet. Ten variations of local effects were defined by materials requirements. Detection and differentiation of those local effects compared in reference, bipolar and common reference recordings and source derivation. It is shown that all information received from standard recordings is also evident in source derivation. Furthermore there are a lot of additional findings and - proved by illustrating examples - a respectable number of findings which could not be detected by standard recordings. A spatial model figures the superiority of source derivation in detection and discrimination of local effects.

Adult↗
PubMed1981

[Assessment of the course of chronic hepatic encephalopathy. Comparison of various measurements with special reference to the trail-making test].

In eight patients with hepatic cirrhosis and chronic hepatic encephalopathy stage I and II the following measurements were performed in parallel on 58 occasions over eight months: number connection test, time-linked orientation, presence of liver flap, arithmetical test, handwriting sample, electroencephalogram, and venous blood ammonia level. The number connection test correlated significantly with all other parameters apart from the ammonia level. The number connection test had the highest correlation coefficient. The electroencephalogram showed a significant but only weak correlation with each of the other parameters. Results of the arithmetical test, time-linked orientation and handwriting correlated significantly with each other and with the other tests with the exception of the ammonia level. In contrast to the EEG multiple linear correlation of all parameters allowed accurate prediction of the early stage of chronic hepatic encephalopathy if the number of connection test is taken as the measure of the stage. The number of connection test is easy to perform and shows accurate reproducibility. It gives a value as to the severity of onsetting chronic hepatic encephalopathy which is independent of the tester.

Aged↗
PubMed1980

[Thrombosis of the internal carotid artery following blunt surgical trauma (author's transl)].

We report the possible first case of carotid artery thrombosis associated with surgical removal of the styloid process. Our patient, a 49-year old woman, developed acute thrombosis of the internal carotid artery two days following transoral removal of an elongated styloid process through the tonsillar fossa. The pathogenesis, diagnosis and therapy of posttraumatic carotid artery thrombosis are discussed, inclusive of surgical trauma. A hemiparesis without loss of consciousness one to two days after blunt cervicofacial trauma is typical for a carotid thrombosis. In most cases, the obstruction is located in the extracranial portion of the internal carotid artery, and should be verified as soon as possible by carotid arteriography. Surgical thrombectomy rather than conservative management gives the better chance for survival as well as recovery from neurological deficits.

Carotid Artery Injuries↗
PubMedDate not supplied

Transport and production of cerebrospinal fluid (CSF) change in aging humans under normal and diseased conditions.

In three control groups of lumbar (L), cisternal (C), and ventricular (V) cerebrospinal fluid (CSF) with prealbumin contents of ventricular origin (CSF-V-prealbumin) within the reference range, indications for an increased transport of V-CSF into spinal space are presented in the elderly as well as an elevated production of V-CSF. Indications for a diminished V-CSF production, respectively, an increased transport of CSF-V-prealbumin into the spinal space were found in elderly patients suffering from diverse CNS diseases. As these alterations proved to be not disease-specific, the age-related increase of CSF transport was discussed with respect to brain atrophy and enlarged CSF spaces in the elderly central nervous system (CNS). CSF serum prealbumin content, an indicator of blood-brain-barrier function, increased with age similarly to albumin in the "normal" elderly, respectively with diverse CNS diseases. Age- and disease-related decreases of albumin and prealbumin contents in blood serum may lead to wrong interpretations.

Adolescent↗