Lege Artis Medicinae

[The Sides of the Coin]

ZSUZSA Gábor

FEBRUARY 22, 2007

Lege Artis Medicinae - 2007;17(02)

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Lege Artis Medicinae

[Altering cannabinoid signaling during development disrupts neuronal activity]

Lege Artis Medicinae

[57th Annual Meeting of the American Association for the Study of Liver Diseases]

PÉTER Zoltán

Lege Artis Medicinae

[THE DIFFERENTIATION OF CHRONIC PANCREATITIS FROM PANCREATIC CANCER]

CZAKÓ László

[The poor prognosis of pancreatic cancer is mainly due to late diagnosis. The differentiation between pancreatic cancer and chronic pancreatitis is difficult, because the two diseases cause similar clinical symptoms and morphological alterations. Furthermore, chronic pancreatitis is associated with an increased risk of malignant transformation, thus the two diseases may be present simultaneously. The recent developments in molecular genetic tests and in imaging techniques, such as multidetector computed tomography, magnetic resonance cholangio- pancreatography, endoscopic ultrasoundguided fine needle aspiration and positron emission tomography/computed tomography, have fundamentally transformed the differentiation of the two disorders. This paper provides a systematic review of the recent evidence-based results concerning the differentiation of pancreatic cancer and chronic pancreatitis.]

Lege Artis Medicinae

[Zoonoses in focus]

LAKOS András

Lege Artis Medicinae

[EFFECT OF END-OF-LIFE EDUCATION ON MEDICAL STUDENTS’ AND HEALTH CARE WORKERS’ DEATH ATTITUDE]

HEGEDÛS Katalin, ZANA Ágnes, SZABÓ Gábor

[INTRODUCTION - The aim of our research was to evaluate the effect of courses for health care workers and medical students that deal with death, dying and bereavement and that of courses on hospice care of dying patients. The goal of the courses is to make communication on death more open by exploring critical issues related to fear of death to reduce inner anxiety and to improve attitude to dying patients. PARTICIPANTS AND METHOD - Participants (n=168) completed Neimeyer and Moore's Multi-dimensional Fear of Death Scale (MFODS) and Shortened Beck Depression Questionnaire (BDI) on the first and last day of the courses. In case of health care workers a follow-up survey was also performed 2 to 3 months after the course (n=32). RESULTS - The most significant factors of fear of death are: fear for significant others, fear of the dying process and fear of premature death. Overall fear of death scores are reduced as an effect of the courses, the alteration of the components of fear of death depends on the participants’ gender, age and profession as well. Improvement was observed in both groups in attitudes that can be related to the increase of knowledge on the quality care of dying patients like fear from the process of dying and fear from conscious experience of death. CONCLUSION - Besides education containing training as well it is important to strengthen the support function of workplaces in caring for the mental health of the health care staff. Furthermore it is important during gradual education that students participate in courses that aim to achieve opened communication in the most anxiety-evoking issues.]

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Hungarian Radiology

[Male breast cancer]

GÖBLYÖS Péter

[Male breast cancer does not get a sufficient attention which would be appropriate due to its special features. Diagnostical and therapeutical protocols are not existing, a national center and international collaboration would be necessary. Incidence of male breast cancer is one percent of the female breast cancers, and 5 percent of all male cancers. The absolute number of the cases increased in the past years. The mutation of gene BRCA2 plays the main role in the male breast cancer. The breast cancer of the men is a "late disease", because often neither the doctor nor the patient considers this opportunity. The diagnosis is often established at an advanced stage. Cancer can occur on both sides, but the right breast is more often affected. Staging is the same as in female patients. Prognosis is poorer than in females, the tumor-receptor rate is better, HER2 in men does not plays any role. Basic principles of diagnostics and therapy are same as in females, mainly because there is no consensus about the treatment of the male breast cancer. The same proved protocols are used in men which are applied in women. The ground-method is surgery, reduced radicality and mastectomy is usually applied. Males react on hormone therapy better, than women, mainly chemotherapy is suggested. Follow up of the patients and the psychological support is extremely important. A multidisciplinary collaboration is necessary in the treatment of the male patient, and education is of great importance.]

Clinical Neuroscience

[MOVEMENT-RELATED BETA RESPONSES IN ESSENTIAL TREMOR AND PARKINSON’S DISEASE]

GERTRÚD Tamás, PÁLVÖLGYI László, TAKÁTS Annamária, SZIRMAI Imre, KAMONDI Anita

[Objective - To investigate the pathomechanism of essential (ET) and parkinsonian tremor (PT) by studying the correlation between tremor severity and movement-related beta rhythm changes of the human electroencephalogram. Patients and methods - We recorded the electroencephalogram of 10 patients with essential tremor, 10 with Parkinsonian tremor and 10 controls. In a preliminary session we determined the side with lower and higher tremor intensity (T+, T++ respectively), using accelerometry. Subjects pressed an on-off switch in a self-paced manner with left and right thumb. After digitalization of the EEG from Cz, C3, C4 electrodes, the movement reactive beta frequency (MRBF), its minimum/maximum peak power values and their latencies triggered to movement offset were determined. Results - The time course and amplitude of movement related beta desynchronization (ERD) were similar in each group regardless of tremor intensity. In ET tremor severity did not influence post-movement beta synchronization (PMBS) amplitude (PMBSET+=100.98±48.874%, PMBSET++=135.1±92.87%; p=0.231), however it was significantly delayed after the movement of the more tremulous hand (latPMBSET+=1.26±0.566 s, latPMBSET++= 1.57±0.565 s, p=0.003). In the PT group on the side of pronounced tremor the amplitude of PMBS decreased but it was not delayed, compared to the less affected hand (PMBSPT+=115.19±72.131%, PMBSPT++= 77.84±53.101%, p=0.0028; latPMBSPT+=1.4±0.74 s, latPMBSPT++=1.25±0.797 s, p=0.191). In controls the power and latency of PMBS was similar on both sides. Conclusions - The results suggest that neuronal mechanisms underlying PMBS generation are differently affected by ET and PT. Investigation of PMBS might be used for the differential diagnosis of essential tremor and Parkinson's disease.]

Hungarian Immunology

[On the role of aging in etiology of autoimmunity]

SEMSEI Imre, ZEHER Margit, BAKÓ Gyula

[Several types of diseases, among others autoimmune illnesses, could be coupled with the general processes of aging. The two-edged sword of the immune defense is directed once against environmental attacks and on the other side against the self. However, one has to make a difference between normal (physiological) clearance and autoimmune diseases, although both sides of autoimmunity are influenced by the general processes of senescence. Aging of the thymus seems to be one of the key elements of the etiology of autoimmunity, although other cell types and their aging also play a substantial role in this process. The spontaneous genetic instability, the acquired genetic mutations due to aging and the age-related alterations of the information level of the body together may be important elements of the patomechanism of both the physiological autoimmunity and the autoimmune diseases. Nevertheless, physiological autoimmunity seems to be directed mostly by natural factors (such as aging and apoptosis) but primary autoimmune diseases may be caused by genetic instability that is enhanced by aging as well.]

Clinical Neuroscience

[COMPLEX GAZE DISTURBANCE CAUSED BY THALAMIC AND MESENCEPHALIC INFARCTS]

GULYÁS Szilvia, NAGY Ferenc, SZIRMAI Imre

[A 36 year-old male patient developed sudden double vision and gait imbalance. Neurological examination revealed gaze paresis upward and on the left side downward (vertical “oneand- a-half”-syndrome), horizontal gaze nystagmus on the left bulbus directed to left. The MRI revealed bilateral thalamic and left midbrain ischemic lesions. The brainstem auditory and visual evoked responses were normally configured. Optokinetic nystagmus test found rightward, upward and downward hypometric saccades, convergence-retraction nystagmus - which was not visible at physical neurological examination - saccadic smooth pursuit eye movement and pseudoabducent palsy on both sides. The complex gaze disturbance was attributed to the lesions in the intralaminar nuclei of the thalamus and in the pretectal and rostromedial tegmentum of the mesencephalon. Infarcts may have been due to a variant artery: i.e. the thalamoperforant and the superior paramedian mesencephalic arteries originate with common branch from one of the communicant basilar artery. The authors discuss the mechanism of complex gaze palsy and call attention to the diagnostic value of optokinetic nystagmus examination.]

Clinical Neuroscience

[COMPLEX TREMOR ANALYSIS FOR THE DIFFERENTIAL DIAGNOSIS OF ESSENTIAL TREMOR AND PARKINSON’S DISEASE]

FARKAS Zsuzsanna, CSILLIK Anita, PÁLVÖLGYI László, TAKÁCS Annamária, SZIRMAI Imre, KAMONDI Anita

[Objective - Tremor is the most common movement disorder which is most often either essential or caused by Parkinson’s disease. The differentiation of these disorders at the initial stage may be difficult. Objective assessment of the efficacy of tremor medications is only possible by instrumental measurements. The aim of this study was to determine whether the computer assisted tremor analysis system CATSYS 2000 can help in the differentiation of parkinsonian from essential tremor. Methods - The rhythmicity and maximal frequency of fast alternating hand and finger movements, simple reaction time and postural instability were recorded in healthy controls (n=18), patients with Parkinson’s disease (n=39) and essential tremor (n=37). Data were digitally converted and statistically analyzed. Results - Tremor intensity, median frequency and frequency distribution showed characteristic differences in the three groups. Performance in fast alternating movements of hands and fingers were significantly worse in both tremor groups compared to the healthy controls. Conclusions - The data also indicated that quantitative measurements of tremor parameters must be performed on both sides, because the presence of significant side differences support the diagnosis of Parkinson’s disease. The method presented can be used to objectively analyze tremor and performance in rhythmic movements. The results show that it helps to differentiate parkinsonian from essential tremor as well as to predict disease course and the effectiveness of therapy. Multivariate statistical analysis of tremor and movement performance also provides an opportunity to study the pathogenesis of human tremor.]