Lege Artis Medicinae

[Research as “Flow” – a Discussion with Péter Csermely]


SEPTEMBER 20, 2005

Lege Artis Medicinae - 2005;15(08-09)



Further articles in this publication

Lege Artis Medicinae


REJTŐ Kálmán

[The early diagnosis of the different types of hearing impairments and the adequate surgical or conservative therapy have changed in the last decades. Up-to-date objective audiological methods (otoacustic emission, auditory brain stem potentials, audiotory steady state potentials) and genetic laboratory examinations help us in the diagnosis of the congenital hearing impairments. Formerly, only patients with the different diseases of the middle ear consisted into the group for surgical rehabilitation but recently this has been completed with middle ear implantation of different types as well. In cases of sensoryneural hearing impairments of severe degree cochlear implantation is now possible and in the case of severe impairments nerve VIII brain stem implantation can be performed. The high level of the technical development brought revolution in the rehabilitation with hearing aids as well. The new digital technology, the sizes of the hearing aids, good cosmetic and excellent functional results help the medicaltechnical team in the optimal fulfilment of the demands and expectations. In the process of the complex rehabilitation with hearing aids, the exact diagnosis, the fitting of the proper hearing aids with individual ear moulds, the teaching and training and the care of the patient will bring the expected result.]

Lege Artis Medicinae


BALOG Piroska, MÉSZÁROS Eszter

[INTRODUCTION - Marital stress and depression have proved to be independent biopsychosocial risk factors for cardiovascular disorders. At the same time their interaction increases cardiovascular vulnerability. The Stockholm Female Coronary Risk Study has shown that marital stress was statistically significantly associated with depressive symptoms, in both groups of healthy women and in patients, even after adjusting for age, educational level, menopausal status, body mass index, cigarette smoking, sedentary lifestyle and the severity of heart failure. METHODS - The aim of this study was to investigate the effect of marital stress on depressive symptoms and psychosocial vulnerability in women with coronary heart disease and in healthy women, cohabiting and currently working. Data were obtained from the Hungarostudy 2002, representing the Hungarian population over the age of 18, according to age, sex and county. RESULTS - The results have shown that an increase in marital stress contributes to an increase in psychosocial vulnerability (depression, anxiety, vital exhaustion, sleep complaints) in healthy women and in women with cardiovascular disorders as well. Higher depression has been related with higher marital stress as well. DISCUSSION - The relation between marital stress and depression seems to be independent from socio-cultural, economical differences: the same results have been found in Hungarian and Swedish women. This relation seems to be bidirectional: a bad marriage increases the prevalence rate of depressive symptoms and depression worsens marital quality. At the end we propose a conceptual framework for how marital stress and depression increases cardiovascular vulnerability in women, emphasizing circular causality.]

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[Pathologist have recognized arterial calcification for over a century described also by Virchow in the 19th century. Vascular calcification, an active mechanism, involves a complex, regulated process of biomineralization resembling osteogenesis. Evidence indicates that proteins controlling bone mineralization are also involved in the regulation of vascular calcification. The atherosclerotic plaque calcification can be easily detected noninvasively with radiological methods currently available and it correlates with the amount of atherosclerotic plaque. Also, it serves as a surrogate measure for atherosclerosis, allowing preclinical detection of the disease. There are several examples for the relationship between hyperlipidaemia and increased loss of bone mass. It is not surprising that the base drugs for osteoporosis also have the characteristics for lowering vascular calcification and are antiatherogenous and antilipaemic drugs. The clinical importance ot these facts is that vascular calcification is associated with higher risk of cardiovascular events. In the summary, the authors review the four histopathological types of arterial calcification and the molecules and proteins involved in these processes.]

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[Cardiac resynchronisation therapy with biventricular pacing is a new treatment option in patients with moderate-to-advanced heart failure and left bundle branch block. Cardiac resynchronisation therapy leads to improved haemodynamics at diminished energy cost. Beneficial effects include reverse remodelling resulting in decreased heart size and ventricular volumes, improved ejection fraction and decreased functional mitral regurgitation. The haemodynamic improvements are associated with a significantly better quality of life, improved exercise tolerance and less frequent hospitalisation. Several randomised trials have evaluated the short- and longterm effect of biventricular pacing on haemodynamics and clinical parameters and recent preliminary data suggest that cardiac resynchronisation therapy can reduce the mortality. Despite major advances of lead and pacemaker techniques, the implantation of a biventricular pacemaker is still a challenging and complex procedure. To introduce the left ventricular pacing lead into the sinus coronarius may cause difficulties. Approximately one third of the patients do not respond to the therapy, therefore better pre-implant identification of the responders are needed. For patient selection and follow- up echocardiography has a major role.]

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TAHIN Balázs, TÓTH Csaba, KOVÁCS Attila, DOBOS András, DÖBRÖNTE Zoltán, NAGY Lajos, TARABÓ Zoltán, MÁRKUS Béla, GARZULY Ferenc

[INTRODUCTION - The efforts to eliminate the source of gastrointestinal bleeding are not always successful, especially in rare diseases. CASE REPORT - In three patients causes and sites of haemorrhages were detected only at autopsy. The first patient underwent upper gastrointestinal endoscopy as well as surgical exploration. The post-mortem examination showed multiple gastric Dieulafoy’s vascular lesion. The second patient was examined by repeated upper gastrointestinal panendoscopy, but the site of haemorrhage remained unknown. Two polyps were removed during colonoscopy. Unexpected haemorrhage caused sudden death. The aortobifemoral graft, which had been implanted two years earlier had destroyed the duodenal wall, a fistula developed and caused haemorrhage. The third patient had had a right hemicolectomy abroad because of angiodysplasia, but the bleeding episodes repeated. The cause was revealed at autopsy as angiodysplasia of the small bowel. CONCLUSION - Dieulafoy’s disease can sometimes be discovered only by repeated endoscopy but sudden death may precede diagnosis. In the presence of an aortic graft we have to keep in mind that this could be the cause of catastrophic bleeding. Therefore, the examinations should be performed immediately - endoscopy has to involve the distal part of the duodenum - and operation is urgent. Angiodysplasia of the small bowel is a rare site of angiodysplasia which requires special diagnostic procedures like capsule endoscopy. The multiplicity of the disease and the age of the patients made the diagnostic difficult.]

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Related contents

Clinical Neuroscience

Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

Clinical Neuroscience

[What happens to vertiginous population after emission from the Emergency Department?]

MAIHOUB Stefani, MOLNÁR András, CSIKÓS András, KANIZSAI Péter, TAMÁS László, SZIRMAI Ágnes

[Background – Dizziness is one of the most frequent complaints when a patient is searching for medical care and resolution. This can be a problematic presentation in the emergency department, both from a diagnostic and a management standpoint. Purpose – The aim of our study is to clarify what happens to patients after leaving the emergency department. Methods – 879 patients were examined at the Semmel­weis University Emergency Department with vertigo and dizziness. We sent a questionnaire to these patients and we had 308 completed papers back (110 male, 198 female patients, mean age 61.8 ± 12.31 SD), which we further analyzed. Results – Based on the emergency department diagnosis we had the following results: central vestibular lesion (n = 71), dizziness or giddiness (n = 64) and BPPV (n = 51) were among the most frequent diagnosis. Clarification of the final post-examination diagnosis took several days (28.8%), and weeks (24.2%). It was also noticed that 24.02% of this population never received a proper diagnosis. Among the population only 80 patients (25.8%) got proper diagnosis of their complaints, which was supported by qualitative statistical analysis (Cohen Kappa test) result (κ = 0.560). Discussion – The correlation between our emergency department diagnosis and final diagnosis given to patients is low, a phenomenon that is also observable in other countries. Therefore, patient follow-up is an important issue, including the importance of neurotology and possibly neurological examination. Conclusion – Emergency diagnosis of vertigo is a great challenge, but despite of difficulties the targeted and quick case history and exact examination can evaluate the central or peripheral cause of the balance disorder. Therefore, to prevent declination of the quality of life the importance of further investigation is high.]

Clinical Neuroscience

Life threatening rare lymphomas presenting as longitudinally extensive transverse myelitis: a diagnostic challenge

TOLVAJ Balázs, HAHN Katalin, NAGY Zsuzsanna, VADVÁRI Árpád, CSOMOR Judit, GELPI Ellen, ILLÉS Zsolt, GARZULY Ferenc

Background and aims – Description of two cases of rare intravascular large B-cell lymphoma and secondary T-cell lymphoma diagnosed postmortem, that manifested clinically as longitudinally extensive transverse myelitis (LETM). We discuss causes of diagnostic difficulties, deceptive radiological and histological investigations, and outline diagnostic procedures based on our and previously reported cases. Case reports – Our first case, a 48-year-old female was admitted to the neurological department due to paraparesis. MRI suggested LETM, but the treatments were ineffective. She died after four weeks because of pneumonia and untreatable polyserositis. Pathological examination revealed intravascular large B-cell lymphoma (IVL). Our second case, a 61-year-old man presented with headache and paraparesis. MRI showed small bitemporal lesions and lesions suggesting LETM. Diagnostic investigations were unsuccessful, including tests for possible lymphoma (CSF flow cytometry and muscle biopsy for suspected IVL). Chest CT showed focal inflammation in a small area of the lung, and adrenal adenoma. Brain biopsy sample from the affected temporal area suggested T-cell mediated lymphocytic (paraneoplastic or viral) meningoencephalitis and excluded diffuse large B-cell lymphoma. The symptoms worsened, and the patient died in the sixth week of disease. The pathological examination of the presumed adenoma in the adrenal gland, the pancreatic tail and the lung lesions revealed peripheral T-cell lymphoma, as did the brain and spinal cord lesions. Even at histological examination, the T-cell lymphoma had the misleading appearance of inflammatory condition as did the MRI. Conclusion – Lymphoma can manifest as LETM. In cases of etiologically unclear atypical LETM in patients older than 40 years, a random skin biopsy (with subcutaneous adipose tissue) from the thigh and from the abdomen is strongly recommended as soon as possible. This may detect IVL and provide the possibility of prompt chemotherapy. In case of suspicion of lymphoma, parallel examination of the CSF by flow cytometry is also recommended. If skin biopsy is negative but lymphoma suspicion remains high, biopsy from other sites (bone marrow, lymph nodes or adrenal gland lesion) or from a simultaneously existing cerebral lesion is suggested, to exclude or prove diffuse large B-cell lymphoma, IVL, or a rare T-cell lymphoma.

Clinical Neuroscience

TLR4 (Toll-like receptor-4) expression and frontal-cingulate volumes in schizophrenia

LI Hua, KÉRI Szabolcs

Evidence suggests that pathogen-associated pattern recognition receptors (Toll-like receptors, TLRs) are implicated in the pathophysiology of schizophrenia. TLRs are important in both peripheral immune responses and neuronal plasticity. However, the relationship between peripheral TLR expression and regional brain volumes is unknown in schizophrenia. We therefore assessed 30 drug-naïve, first-episode patients with schizophrenia. TLR4+/TLR1+ monocytes were measured using flow-cytometry. High resolution magnetic resonance images (T1 MRI) were obtained and analyzed with FreeSurfer. Results revealed significant negative correlations between the percentage of TLR4+ monocytes, mean fluorescent intensities, and brain volumes in frontal and anterior cingulate regions. The measures of TLR1+ monocytes did not show significant relationships with regional brain volumes. These results raise the possibility that abnormal TLR-activation is associated with decreased brain volumes in schizophrenia.

Clinical Neuroscience

Valproic acid associated pleuropericardial effusion: case report

DEMIR Figen Ulku

Introduction - Valproic acid is an effective antiepileptic and mood stabilizer used in the treatment of many neurological and psychiatric disorders. Although there are frequently seen side effects, effusions between layers of pleural and pericardial membranes are rare to be seen. Case - Pleuropericardial effusion was detected in a 23 years old woman who was under valproic acid treatment because of epileptic seizure. After 1 year of valproic acid treatment, patient complained of dyspnea. As all the researches intended on etiology were usual, valproic acid has been thought to be responsible for the matter. Control examination after 1.5 months regarding the end of treatment revealed complete recovery of pleuropericardial effusion. Discussion - Pleural and pericardial effusions are rarely seen complications related to the use of valproic acid. It must also be kept in mind that valproic acid causes a potential for such side effects which can be blamed etiologically when the other possibilities for patients are excluded.