Clinical Neuroscience

[In memoriam István Somogyi MD]

SZILÁRD János, JÁRDÁNHÁZY Tamás

JULY 30, 2007

Clinical Neuroscience - 2007;60(07-08)

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Clinical Neuroscience

[STATIN DRUGS DECREASE THE PLASMA COENZYM Q10 (UBIQUINONE) LEVEL IN ORGANISM]

RÁKÓCZI Károly, PÁRDUTZ Árpád, VÉCSEI László

[In this paper the authors review the relationship and the possible interaction between the HMG-CoA reductase inhibitors (statins) and the CoQ10 (ubiquinone) based on the current literature. The statins are widely used in the clinical practice. Inhibiting the synthesis of mevalonic acid they decrease the plasma cholesterol level. Since mevalonic acid is also required for ubiquinone synthesis statins could influence ubiquinone metabolism. Many studies confirmed the relationship between statin therapy and lower plasma ubiquinone level. Much less data are available about the tissue concentration changes of ubiquinone during statin therapy. The authors try to summarise the consequences of the interaction between statin therapy and ubiquinone metabolism.]

Clinical Neuroscience

[FUNCTIONAL MRI AT 1 TESLA. BASIC PARADIGMS AND CLINICAL APPLICATION]

SCHWARCZ Attila, AUER Tibor, KOMOLY Sámuel, DÓCZI Tamás, JANSZKY József

[AIM OF THE STUDY - To perform functional MRI experiments at low magnetic field, and to set up routine protocol to help the planning of neurosurgical operations and the examination of epilepsy patients. METHODS - An optimized 2D EPI sequence was applied to yield functional MR images in basic paradigms such as finger tapping and internal word generation. Further, activation was induced also by a task involving mental navigation based on the retrieval of individually familiar visuo-spatial knowledge. RESULTS - Low resolution (matrix of 64×64) functional MR images satisfactorily visualized moto-sensor strip and speech centers. In the mental navigation task bilateral activation of formatio hippocampalis was observed. Determination of motor area was also performed in an epilepsy patient whose seizure focus had been found in the area of pre- and postcentral gyrus. The dislocation of the motor cortex was demonstrated. CONCLUSION - Functional MR images with fine quality can be obtained in basic paradigms even at low magnetic field if MR imaging parameters and paradigms are optimized.]

Clinical Neuroscience

[DYT1 POSITIVE GENERALISED DYSTONIA: A CASE STUDY OF TWO SIBLINGS]

BEREZNAI Benjámin, BARACZKA Krisztina, NAGY Zoltán, MOLNÁR Mária Judit

[The early-onset generalised dystonia is a dyskinetic movement disorder with a wide variety in phenotype and poor response to pharmacological treatment. A mutation on the DYT1 gene is responsible for the disease in more than 50% of cases with typical early-onset dystonia beginning in a limb. We describe the medical history of two brothers with first signs of focal dystonia at age 12 starting with right side lower limb dystonia of the older brother and writers cramp of the younger one. In both over a period of 6 and 10 years dystonia generalised. The negativ results of MRI, electrophisiological testing and muscle biopsy corroborate the diagnosis of primary dystonia. The DNA from the older patient was tested for the 3 bp deletion in exon 5 of the DYT1 gene by restriction enzyme. The positive result confirmed the diagnosis of early-onset primary dystonia. A short synopsis of routine molecular genetic tests indications and treatment options is outlined.]

Clinical Neuroscience

[INVESTIGATION OF THE EFFECT OF VINPOCETINE ON CEREBRAL BLOOD FLOW AND COGNITIVE FUNCTIONS]

VALIKOVICS Attila

[Introduction - Vinpocetine has been widely used in the treatment of ischaemic cerebrovascular diseases and dementias of vascular type. Chronic cerebral hypoperfusion plays an important role in the development of certain types of dementia. In consequence of complex mode of action vinpocetine plays a significant role in the improvement of cerebral hypoperfusion. The symptoms of mild cognitive impairment considered as “predementia” are similar to those of dementia, although milder. Aims - The authors investigated the characteristics of the blood flow parameters of patients with ischemic stroke and mild cognitive impairment both in resting conditions or following chemical stimulus as well as they investigated the severity of mental deterioration in the two patient groups. In a pilot study the authors examined the influence of 12-week long oral vinpocetine therapy on the blood flow parameters and cognitive functions in the two patient groups. Methods - The authors studied the blood flow velocity of a. cerebri media in resting conditions and after 30 sec of breath holding with transcranial Doppler before treatment and after a 12-week long oral vinpocetine treatment. At the same time psychometric tests (MMSE, ADAS-Cog) were used in order to examine cognitive functions, while the general condition of the patients were scored by Clinical Global Impression (CGI) scale. Results - After a 12-week long oral vinpocetine treatment the increase of blood flow velocity in resting conditions compared to the baseline values was significant in the vascular group. The percent increase of mean velocity after the breath holding TCD test showed a significant increase compared to the baseline in both patient groups. The authors found a significant improvement of cognitive functions after a 12-week long oral vinpocetine therapy using psychometric tests. The improvement was identical in both groups. The general condition of patients improved significantly according to both the investigator's and the patients' opinion; patients with mild cognitive impairment judged the improvement higher. Conclusions - Vinpocetine improved the cerebrovascular reserve capacity in both patient groups and favourably influenced the cognitive status and general condition of patients with chronic hypoperfusion. The authors recommend the use of vinpocetine for the treatment of patients with mild cognitive impairment.]

Clinical Neuroscience

[SOCIAL INSURANCE COSTS OF STROKE HOSPITAL TREATMENTS IN HUNGARY; 2003-2005]

KÁRPÁTI Krisztián, MÁJER István, BONCZ Imre, NAGY Attila, BERECZKI Dániel, GULÁCSI László

[Our aim was to assess the social insurance costs of hospital treatments for acute stroke in Hungary between 2003 and 2005. We studied how much burden stroke patients impose on the financer (National Health Insurance Fund Administration) in acute and chronic hospital admissions. We extracted the data of “new” stroke patients (ICD-10: I60-64 diagnosis) hospitalized in May 2003 from the database of the financer. We analyzed active and chronic hospital treatment costs of these patients in the period of 12 months before the stroke and in the following first and second 12 months. Data were collected by sex and age (age groups: 25-44, 45-64, over 65). We studied patients hospitalized in May 2003 with the ICD-10: I60-64 main diagnosis but not being treated with the same diagnosis in the previous 24 months. In the first 12 months of the active care the burden of the disease was (male vs. female) 65+: 254.6 vs. 205.8; 45-64: 341.4 vs. 280.5; 25-44: 370.1 vs. 306.1 thousand HUF per patient. In the second 12 months the costs were 50.6 vs. 36.2; 24.2 vs. 32.6; 27.6 vs. 24.8 thousand HUF respectively. In the first year following the episode the costs of the chronic hospital treatment were (age groups as above) 23.3 vs. 31.3; 28.9 vs. 22.2; 22.8 vs. 22.5 thousand HUF. A year later the chronic hospital costs were 9.0 vs. 10.9; 6.7 vs. 12.2; 1.4 vs. 38.1 thousand HUF respectively. Average costs of stroke are higher in the case of males as are in the case of females, 364.8 vs. 303.0 thousand HUF in the first 24 months. The remarkable difference results from active hospital treatment costs (331.5 vs. 262.1 thousand HUF), while the discrepancy is smaller in the chronic hospital care (33.3 vs. 40.9 thousand HUF).]

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