Lege Artis Medicinae

[REFRACTIVE SURGERY IN THE XXIST CENTURY - SURGICAL CORRECTION OF REFRACTIVE ERRORS]

NAGY Zoltán Zsolt1, SZABÓ Viktória1, SÜVEGES Ildikó1

JUNE 22, 2004

Lege Artis Medicinae - 2004;14(06)

[Refractive surgical procedures have become more and more popular worldwide. The ultimate aim of these procedures is to change the refractive power of the cornea in order to achieve good uncorrected visual acuity and to get rid of the optical correction need. In this article, the history of refractive surgery, the most important characteristcs and types of the excimer lasers, the most up-to-date refractive surgical techniques and alternative refractive procedures are presented. The lower and upper limits of surgical correction, the newest diagnostic and technical development, i.e. the possibilities of wavefront technology are also discussed.]

AFFILIATIONS

  1. Semmelweis Egyetem, Általános Orvosi Kar, I. Sz. Szemészeti Klinika

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Lege Artis Medicinae

[MEDICAL ANTHROPOLOGICAL APPROACH TO CHILDREN'S SURMISES ON SMOKING]

BAK Judit, PIKÓ Bettina

[INTRODUCTION - The aim of our study was to explore school children'’s surmises on smoking. The following questions were in the focus of our analysis: what concepts children have about smoking and smoking-related diseases before adolescence? Have they already tried smoking? METHODS - The study was conducted among 3rd, 4th and 5th year school children (N=128) in two towns of Békés County, namely in Békés and Köröstarcsa. The sample consisted of 57% males and 43% females. Regarding sampling we followed international studies with similar aims where samples of 9-11-year-old average children were thought to be ideal for such study purpose using the draw-and-write technique. RESULTS - Most respondents from the study have not tried smoking yet. On the other hand, there are great number of adults who smoke in children’s environments, in many times, both parents do. Despite these facts, children’s attitudes toward smoking is rather negative. Children'’ s opinions reflect many negative aspects of smoking: the health-damaging effect, the financial aspects, the negative effects for social and physical environment. CONCLUSIONS - Similar to previous international studies, children of our sample possess correct and comprehensive knowledge of the smoking-related health problems. Findings of our study provides a support to the need of a smoking prevention program for children in the age of their negative opinions of smoking and well before the peer group effect is getting significant.]

Lege Artis Medicinae

[ONCOHEMATOLOGIC MALIGNANCIES WITH SKIN SYMPTOMS]

BENE Ibolya, ERŐS Nóra, KÁROLYI Zsuzsánna, TAKÁCS István, RADVÁNYI Gáspár

[INTRODUCTION - Haematologic malignancies can originate from the skin (cutaneous lymphomas, rarely acute myelomonocytic leukemia) or can infiltrate the skin secondarily during the progression of the disease (nodal and systemic non-Hodgkin’s lymphomas, Hodgkin'’s disease, chronic lymphocytic leukemia). PATIENTS AND METHODS - The clinical history of seven patients treated by the authors between 1997-2003, is reviewed. CONCLUSIONS - The clinical and histopathologic features of each entity are discussed, emphasizing differences in the clinical course between cutaneous and nodal lymphomas, considering diagnostic difficulties, conventional and recent therapeutic approaches.]

Lege Artis Medicinae

[Postgraduate conference on hepatology]

TELEGDY László

Lege Artis Medicinae

[INCIDENCE RATES OF CHILDHOOD TYPE 1 DIABETES WITHIN EUROPE AND HUNGARY BASED ON EURODIAB DATA]

GYÜRÜS Éva, SOLTÉSZ Gyula

[Type 1 diabetes is generally believed to be be the result of an immune destruction of pancreatic ßcells in genetically susceptible individuals exposed to environmental risk factors. To study the epidemiology of childhood-onset type 1 diabetes mellitus in Europe, the EURODIAB collaborative group established in 1988 prospective geographicallydefined registers of new cases diagnosed under 15 years of age. The 10-year-old study shows a greater than 10-fold range in incidence rate of childhood diabetes in Europe. The standardised average annual incidence rate during the period 1989-1998 ranged from 3,6 cases per 100 000 per year in Macedonia to 43,9 cases per 100 000 per year in Finland. Combined data from all centres indicates that the annual rate of increase in incidence was 3,2% but in some central and eastern European countries it was higher. The age-group-specific rates of increase were 5% for children aged 0-4 years, 3,7% for 5-9 years, and 2,1% for 10-14 years, which shows that the highest rates of increase occurred in the youngest age group. The Hungarian Childhood Diabetes Registry has collected the data of all newly diagnosed children with type 1 diabetes aged 0-14 years since 1st January 1978. The standardised incidence rate during the period 1978-2002 was 8,6 cases per 100000 per year, the lowest in the youngest (0-4 yr), highest in the10-14-year-old-children. There was a linear increasing trend in incidence with the average rate of annual increase of 5,1%. Comparing our incidence rate with other European countries Hungary belongs to the medium-risk countries with similar age- and sex-specific incidence rates. The results of the EURODIAB study confirm a very wide range of incidence rates of childhood type 1 diabetes within Europe and show that the increase in incidence varies from country to country. Such variation seems to be unlikely to be explained by genetic differences, since Europeans (except some small populations) are more homogeneous compared with other populations of other continents. The rapid increase in incidence may be explained by changes in environmental factors.]

Lege Artis Medicinae

[NEW METHODS FOR NON-INVASIVE ASSESSMENT OF AIRWAY DISEASES]

HORVÁTH Ildikó

[In chronic obstructive airway diseases there are several unsolved questions regarding the early diagnosis, monitoring treatment, simple detection of exacerbations and the questions of differential diagnosis. These problems indicate the need for the development of new diagnostic methods and their application in clinical practice. This need is further emphasized by the fact that in most chronic airway diseases, including asthma and chronic obstructive pulmonary disease inflammation has a central role in the pathomechanism and its suppression is the main aim of treatment, but so far, we do not have adequate method for the assessment of inflammation intensity in clinical practice. In recent decades non-invasive sampling techniques directly from the airways have made a progress in respiratory research and at present some of them are available for clinical use. Among these techniques sputum induction, measurement of exhaled biomarkers including exhaled nitric oxide and mediators in exhaled breath condensate samples are used increasingly. The present review summarises our current knowledge on these methods and the most important findings obtained by their applications.]

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ÇAKAR Emel Nafiye, YILMAZBAŞ Pınar

[Autism spectrum disorder is a neurodevelopmental disorder with a heterogeneous presentation, the etiology of which is not clearly elucidated. In recent years, comorbidity has become more evident with the increase in the frequency of autism and diagnostic possibilities of inborn errors of metabolism. One hundred and seventy-nine patients with diagnosis of autism spectrum disorder who presented to the Pediatric Metabolism outpatient clinic between 01/September/2018-29/February/2020 constituted the study population. The personal information, routine and specific metabolic tests of the patients were analyzed retrospectively. Out of the 3261 patients who presented to our outpatient clinic, 179 (5.48%) were diagnosed with autism spectrum disorder and were included in the study. As a result of specific metabolic examinations performed, 6 (3.3%) patients were diagnosed with inborn errors of metabolism. Two of our patients were diagnosed with classical phenylketonuria, two with classical homocystinuria, one with mucopolysaccharidosis type 3D (Sanfilippo syndrome) and one with 3-methylchrotonyl Co-A carboxylase deficiency. Inborn errors of metabolism may rarely present with autism spectrum disorder symptoms. Careful evaluation of the history, physical examination and additional findings in patients diagnosed with autism spectrum disorder will guide the clinician in the decision-making process and chose the appropriate specific metabolic investigation. An underlying inborn errors of metabolism may be a treatable cause of autism.]

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Neuroscience highlights: Main cell types underlying memory and spatial navigation

KRABOTH Zoltán, KÁLMÁN Bernadette

Interest in the hippocampal formation and its role in navigation and memory arose in the second part of the 20th century, at least in part due to the curious case of Henry G. Molaison, who underwent brain surgery for intractable epilepsy. The temporal association observed between the removal of his entorhinal cortex along with a significant part of hippocampus and the developing severe memory deficit inspired scientists to focus on these regions. The subsequent discovery of the so-called place cells in the hippocampus launched the description of many other functional cell types and neuronal networks throughout the Papez-circuit that has a key role in memory processes and spatial information coding (speed, head direction, border, grid, object-vector etc). Each of these cell types has its own unique characteristics, and together they form the so-called “Brain GPS”. The aim of this short survey is to highlight for practicing neurologists the types of cells and neuronal networks that represent the anatomical substrates and physiological correlates of pathological entities affecting the limbic system, especially in the temporal lobe. For that purpose, we survey early discoveries along with the most relevant neuroscience observations from the recent literature. By this brief survey, we highlight main cell types in the hippocampal formation, and describe their roles in spatial navigation and memory processes. In recent decades, an array of new and functionally unique neuron types has been recognized in the hippocampal formation, but likely more remain to be discovered. For a better understanding of the heterogeneous presentations of neurological disorders affecting this anatomical region, insights into the constantly evolving neuroscience behind may be helpful. The public health consequences of diseases that affect memory and spatial navigation are high, and grow as the population ages, prompting scientist to focus on further exploring this brain region.

Clinical Neuroscience

Autonomic nervous system may be affected after carpal tunnel syndrome surgery: A possible mechanism for persistence of symptoms after surgery

ONDER Burcu, KELES Yavuz Betul

After carpal tunnel surgery, some patients report complaints such as edema, pain, and numbness. Purpose – The aim of this study was to evaluate autonomic nervous system function in patients with a history of carpal tunnel surgery using sympathetic skin response (SSR). Thirty three patients (55 ±10 years old) with a history of unilateral operation for carpal tunnel syndrome were included in the study. The SSR test was performed for both hands. Both upper extremities median and ulnar nerve conduction results were recorded. A reduced amplitude (p=0.006) and delayed latency (p<0.0001) were detected in the SSR test on the operated side compared to contralateral side. There was no correlation between SSR and carpal tunnel syndrome severity. Although complex regional pain syndrome does not develop in patients after carpal tunnel surgery, some of the complaints may be caused by effects on the autonomic nervous system.

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Evaluation of the effectiveness of transforaminal epidural steroid injection in far lateral lumbar disc herniations

EVRAN Sevket, KATAR Salim

Far lateral lumbar disc herniations (FLDH) consist approximately 0.7-12% of all lumbar disc herniations. Compared to the more common central and paramedian lumbar disc herniations, they cause more severe and persistent radicular pain due to direct compression of the nerve root and dorsal root ganglion. In patients who do not respond to conservative treatments such as medical treatment and physical therapy, and have not developed neurological deficits, it is difficult to decide on surgical treatment because of the nerve root damage and spinal instability risk due to disruption of facet joint integrity. In this study, we aimed to evaluate the effect of transforaminal epidural steroid injection (TFESI) on the improvement of both pain control and functional capacity in patients with FLDH. A total of 37 patients who had radicular pain caused by far lateral disc herniation which is visible in their lumbar magnetic resonance imaging (MRI) scan, had no neurological deficit and did not respond to conservative treatment, were included the study. TFESI was applied to patients by preganglionic approach. Pre-treatment Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) scores of the patients were compared with the 3rd week, 3rd month and 6th month scores after the procedure. The mean initial VAS score was 8.63 ± 0.55, while it was 3.84 ± 1.66, 5.09 ± 0.85, 4.56 ± 1.66 at the 3rd week, 3rd month and 6th month controls, respectively. This decrease in the VAS score was found statistically significant (p = 0.001). ODI score with baseline mean value of 52.38 ± 6.84 was found to be 18.56 ± 4.95 at the 3rd week, 37.41 ± 14.1 at the 3rd month and 34.88 ± 14.33 at the 6th month. This downtrend of pa­tient’s ODI scores was found statistically significant (p = 0.001). This study has demonstrated that TFESI is an effective method for gaining increased functional capacity and pain control in the treatment of patients who are not suitable for surgical treatment with radicular complaints due to far lateral lumbar disc hernia.

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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.