Lege Artis Medicinae

[Weak Motivation, Low Level of Knowledge First Aid Delivered by Laypersons]

dr. HORNYÁK István

NOVEMBER 20, 2007

Lege Artis Medicinae - 2007;17(11)

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[A French Poet as a Dietitian]

dr. KIS Domokos Dániel

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[What’s behind a pathological liver finding]

GASZTONYI Beáta

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[Anomalies in Drug Prescription]

dr. HERCZEG Zita

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[HAEMOGLOBIN CYCLICITY IN RENAL ANAEMIA]

REUSZ György, SZABÓ J. Attila

[Erythropoiesis stimulating agents are glycoproteins in which the oligosaccharide chains that terminate in sialic acid bind to the peptide with glycosidic bond. The lower the sialic acid content of the erythropoietin, the higher its receptor affinity, while its half-life in the circulation decreases. The biological effect depends on the balance of these factors. In the third-generation erythropoiesis stimulating molecule CERA (continuous erythropoietin receptor activator) a large polyethylene glycol molecule is substituted for sialic acid to ensure slow elimination and better biological efficiency. During treatment with erythropoiesis stimulating agents, haemoglobin levels show cyclic fluctuation. This cyclicity is undesirable, so its frequency and amplitude should be reduced as much as possible. The most recent results suggest that CERA may reduce haemoglobin cyclicity.]

Lege Artis Medicinae

[OUR EXPERIENCE WITH COMBINED ANTIVIRAL TREATMENT IN PATIENTS WITH CHRONIC HEPATITIS C WITH PERSISTENTLY NORMAL ALANINE AMINOTRANSFERASE LEVELS]

HORVÁTH Gábor, TOLVAJ Gyula, HALÁSZ Tünde, STOTZ Gyula

[INTRODUCTION - Persistently normal alanine aminotransferase levels, which occur in a fraction of patients chronically infected with hepatitis C virus, do not rule out the presence of chronic hepatitis C, even of that with advanced inflammation and fibrosis. Here we report our results of the treatment of these patients. PATIENTS AND METHODS - Patients with histologically confirmed chronic hepatitis C received combined antiviral treatment with pegylated interferon (alfa-2a 1×180 μg/week or alfa-2b 1×1.5 μg/kg/week) and ribavirin (800- 1200 mg/day) for 48-52 weeks. The alanineaminotransferase levels of 21 patients (14 females, 7 males, age: 20-54, mean 38 years) did not reach the upper limit of normal (40 U/l) during the period of observation (≥6 months). There were 19 and 2 cases with hepatitis C virus genotype 1b and 3, respectively. The patients' hepatitis activity index was 3.7 1.75, fibrosis score: 0.9 0.64, baseline viral titer: 1.18 1.12×106 IU/ml, alanine-aminotransferase level: 33.51 7.2 U/l. The last 100 unselected patients with elevated alanine-aminotransferase levels enrolled in treatment for chronic hepatitis C and who were followed for at least 6 months served as the control group with the following parameters: 41 females and 59 males (age: 18- 65, mean: 45.65 years), viral genotypes: 98 and 2 cases of type 1 and 3, respectively, hepatitis activity index: 5.44±4.03, stage: 1.29±1.00, baseline viral titer: 4.13±6.25×106 IU/ml. RESULTS - In the study group, all patients were hepatitis C virus RNA negative at the end of the treatment and with one exception remained so by the end of the 6-month follow-up period (20/21), while the sustained virologic response was 36% in the control group. The pretreatment normal alanine aminotransferase level decreased significantly (15.26 4.9 vs 33.51 7.2 U/l, p<0.001) by the end of the treatment, and remained at this level during the follow-up in all except one relapse case. CONCLUSION - The efficacy of the combined antiviral treatment is high in patients with persistently normal alanine aminotransferase levels, possibly due to the relatively younger age, the higher proportion of females, the lower baseline viral titer, and the less advanced liver disease (lower inflammatory activity and less or absent fibrosis) observed in this group. Combined antiviral treatment is recommended for patients with histologically confirmed chronic hepatitis C with normal alanine aminotransferase levels, even with mild inflammatory activity and minimal or absent fibrosis in the liver tissue. The previous suggestions based on published evidence to revise the upper limit of the normal range of alanine aminotransferase level are supported by the results of this study.]

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[Zonisamide: one of the first-line antiepileptic drugs in focal epilepsy ]

JANSZKY József, HORVÁTH Réka, KOMOLY Sámuel

[Chronic administration of antiepileptic drugs without history of unprovoked epileptic seizures are not recommended for epilepsy prophylaxis. Conversely, if the patient suffered the first unprovoked seizure, then the presence of epileptiform discharges on the EEG, focal neurological signs, and the presence of epileptogenic lesion on the MRI are risk factors for a second seizure (such as for the development of epilepsy). Without these risk factors, the chance of a second seizure is about 25-30%, while the presence of these risk factors (for example signs of previous stroke, neurotrauma, or encephalitis on the MRI) can predict >70% seizure recurrence. Thus the International League Against Epilepsy (ILAE) re-defined the term ’epilepsy’ which can be diagnosed even after the first seizure, if the risk of seizure recurrence is high. According to this definition, we can start antiepileptic drug therapy after a single unprovoked seizure. There are four antiepileptic drugs which has the highest evidence (level „A”) as first-line initial monotherapy for treating newly diagnosed epilepsy. These are: carbamazepine, phenytoin, levetiracetam, and zonisamide (ZNS). The present review focuses on the ZNS. Beacuse ZNS can be administrated once a day, it is an optimal drug for maintaining patient’s compliance and for those patients who have a high risk for developing a non-compliance (for example teenagers and young adults). Due to the low interaction potential, ZNS treatment is safe and effective in treating epilepsy of elderly people. ZNS is an ideal drug in epilepsy accompanied by obesity, because ZNS has a weight loss effect, especially in obese patients.]

Clinical Neuroscience

[Interdisciplinary approach of vestibular system impairment]

PONGRÁCZ Endre

[In the first part of this review the definition of vertigo/dizziness was discussed. The major difference between the two signs is the exsistence of the direction, which is specific for vertigo. Dizziness is a frequent complaint in the clinical practice. Its frequency is increasing with advance of age, to intimate the play of declining cognitive process in the pathogenesis of its. The popular health significance of vertigo is in the rowing number of the patients. The onset of the most cases with acute vertigo appears between secundums and minutes so the patients will be provided in circumstances of emergency department. First of all three form schould be take into account: neuronitis vestibularis, benign paroxysmal positional vertigo and Meniere syndrome. Without tipical periferal signs of vertigo, central cause should be searched, principally stroke (lysis possibility). The differential diagnose of the different dizzeness/vertigo forms according to the elapsed time of the onset or congenital and acquired nystagmus was created in tables. The recommendations of the therapy of acute and chronic dizziness/ vertigo syndroms are, lack of results of evidence based trials doubtful. The more often used drugs based on clinical trials are discussed as vinpocetine, betahistine and piracetam. The in vitro and in vivo data suggest that the last molecule is eligible to use both in periferal and central type of vertigo syndroms.]

Clinical Neuroscience

Cyanocobalamin and cholecalciferol synergistically improve functional and histopathological nerve healing in experimental rat model

ALBAY Cem, ADANIR Oktay, AKKALP Kahraman Asli, DOGAN Burcu Vasfiye, GULAEC Akif Mehmet, BEYTEMUR Ozan

Introduction - Peripheral nerve injury (PNI) is a frequent problem among young adults. Hopefully, regeneration can occur in PNI unlike central nervous system. If nerve cut is complete, gold standard treatment is surgery, but incomplete cuts have been tried to be treated by medicines. The aim of the study was to evaluate and compare clinical and histopathological outcomes of independent treatment of each of Vitamin B12 (B12) and Vitamin D3 (D3) and their combination on sciatic nerve injury in an experimental rat model. Materials and methods - Experimental animal study was performed after the approval of BEH Ethics Committee No. 2015/10. 32 rats were grouped into four (n=8) according to treatment procedures, such as Group 1 (controls with no treatment), Group 2 (intraperitoneal 1 mg/kg/day B12), Group 3 (oral 3500 IU/kg/week D3), Group 4 (intraperitoneal 1 mg/kg/day B12+ oral 3500 IU/kg/week D3). Sciatic Functional Index (SFI) and histopathological analysis were performed. Results - SFIs of Group 2, 3, 4 were statistically significantly higher than controls. Group 2 and 3 were statistically not different, however Group 4 was statistically significantly higher than others according to SFI. Axonal degeneration (AD) in all treatment groups were statistically significantly lower than in Group 1. AD in Group 4 was significantly lower than in Group 2 and 3; there was no significant difference between Group 2 and 3. There was no significant difference between Group 1,2 and 3 in Axonolysis (A). But A of Group 4 was significantly very much lower than all others. Oedema- inflammation (OE-I) in all treatment groups were significantly lower than in Group 1; there was no significant difference between Group 2 and group 4. OE-I in Group 2 and 4 were significantly lower than in Group 3. There were no significant differences between Group 1, 2 and 3 in damage level scores; score of Group 4 was significantly lower than of Group 1. Conclusions - B12 and D3 were found effective with no statistically significant difference. But combined use of B12 and D3 improve nerve healing synergistically. We recommend combined use of B12 and D3 after PNI as soon as possible.

Clinical Neuroscience

The effects of the level of spinal cord injury on life satisfaction and disability

GULSAH Karatas, NESLIHAN Metli, ELIF Yalcin, RAMAZAN Gündüz, FATIH Karatas, MÜFIT Akyuz

Introduction - Spinal Cord Injury (SCI) may often lead to significant disability in affected individuals and reduce life satisfaction. Herein we aimed to investigate the effects of the level of injury on disability and life satisfaction as well as the relation between life satisfaction and disability. Methods - Patients with at least one-year history of SCI were included. Demographic-clinical data of patients were recorded. The Craig Handicap Assessment and Reporting Technique-Short Form (CHART-SF) was used for quantifying the degree of patients’ disability. Life satisfaction was assessed by the Satisfaction with Life Scale (SWLS). Results - Of the 76 patients, 21 (27.6%) were tetraplegic and 55 (72.4%) were paraplegic. SWLS was found to be similar in tetraplegic vs. paraplegic patients (P=0.59), whereas CHART parameters such as physical independence, mobility, occupation, and total CHART value were significantly higher in paraplegic patients (P=0.04, P=0.04, P=0.001 and P=0.01, respectively). Social integration was found similarly high in both groups. There was a positive correlation between elapsed time after the injury and CHART physical independence, occupation and the level of economic sufficiency (P<0.01, P<0.01, P=0.01). Excluding the economic sufficiency (P=0.02), there was not any other association between the rest of CHART parameters and SWLS. Conclusions - According to our findings, although the level of injury seems to be influential on disability, it seems to have no significant effect on life satisfaction. Since the only thing that positively affects life satisfaction is economic sufficiency, more emphasis should be placed on regulations that increase the return to work in patients.

Clinical Neuroscience

[EEG source localization using LORETA (Low Resolution Electromagnetic Tomography)]

PUSKÁS Szilvia

[Electroencephalography (EEG) has excellent temporal resolution, but the spatial resolution is poor. Different source localization methods exist to solve the so-called inverse problem, thus increasing the accuracy of spatial localization. This paper provides an overview of the history of source localization and the main categories of techniques are discussed. LORETA (Low Resolution Electromagnetic Tomography) is introduced in details: technical informations are discussed and localization properties of LORETA method are compared to other inverse solutions. Validation of the method with different imaging techniques is also discussed. This paper reviews several publications using LORETA both in healthy persons and persons with different neurological and psychiatric diseases. Finally future possible applications are discussed.]