Lege Artis Medicinae

[Cochlear implantation: results and perspectives in the therapy of profound deafness in Hungary]


APRIL 20, 2002

Lege Artis Medicinae - 2002;12(04)

[Cochlear implantation is a relatively new method that revolutionised the therapy of bilateral deafness and profound hearing loss of inner ear origin which could not be treated with surgery before. The function of the inner ear that is irreversibly damaged either because of congenital causes, trauma, infection or unknown origin is substituted by cochlear implant. In implanted patients the device fixed in the middle ear transmits the previously transformed electrical stimuli directly to the cochlear nerve via the electrodes inserted in the inner ear. Prior to implantation there is a detailed selection process and also a lengthy, followed by a several-year-long rehabilitation period, resulting in nearly perfect speech discrimination without lipreading in most cases. Cochlear implantation is indicated in the first place in case of prelingual deafs under 5 and postlingual deaf patients of any age. In the article authors discuss the theoretical basis, technical background and indications of cochlear implantation, while also providing an overview of the whole procedure from the preoperative examinations to postoperative rehabilitation.]



Further articles in this publication

Lege Artis Medicinae

[Recognition of mental disorders in primary care]


[BACKGROUND - Several studies have shown that a substantial part of patients with mood and anxiety disorders seeks help at their primary care physician. It is well known that recognition of these disorders cause difficulties for general practitioners. In our study starting in 1998, we attempted to map the psychiatric disorders present in primary care patients. This paper investigates the factors that may contribute to the difficulties in recognition and diagnosis of mental disorders. METHOD - 1815 primary care patients in 12 general practice offices has been evaluated for mood and/or anxiety disorders with DIS interview. The DIS diagnosis was compared with complaints and symptoms of patients and diagnosis given by their GPs. RESULTS - Diagnosis given by GPs and DIS evaluation showed low concordance. The main factor in this proved to be the presence of somatic disorders, whereas socio-demographic factors played little role. The highest concordance of diagnosis was found when acute or chronic somatic disorders were not present.]

Lege Artis Medicinae

[Rapid-acting human insulin analogues: new possibilities in the therapy of diabetes mellitus]


[Modifications of the insulin molecule at the end of the B chain resulted in the development of some new, more physiological meal-related insulins, the rapid acting human insulin analogues. This survey summarises the characteristics (structure, absorption, immunogenicity, efficacy and safety) and the conditions of clinical application of the rapid-acting insulin analogues available at the moment in Hungary. Furthermore, authors evaluate the effect of application of rapid-acting insulin analogues on the quality of life and glycaemic control of the patients. The collaboration between the well-prepared health-care team and the well-educated and cooperative diabetic patient using rapid-acting insulin analogue could lead to a level of freedom of lifestyle that approximates that of healthy people.]

Lege Artis Medicinae

[Socialisation in the medical profession as reflected by students]


[INTRODUCTION - This article analyses the socialisation in the medical profession using complex approach, and taking Merton’s definition as a starting point. METHODS - Qualitative sociological, semistructured deep-interview method. RESULTS - The motivation of medical students in choosing their profession have not changed in the past years. The socialisational phases can clearly be observed during their training, these can serve as a basis for empirical observations. The role of classes related to behavioural studies is significant, while the opinion of the students about the teaching methods is diverse. Taking a family member as a model or work experience gained in medical fields is an advantage in the socialisational process. Temporal or partial leaving of the profession are new phenomena. CONCLUSION - Considering the characteristics of qualitative observational methods, the results of the present analysis may serve as a starting point for further empirical observations based on a representative model.]

Lege Artis Medicinae

[Either you sink or swim?]


Lege Artis Medicinae

[Statin for everyone? - Aspects of treatment]


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Related contents

Clinical Neuroscience

Review of electrode placement with the Slim Modiolar Electrode: identification and management

DIMAK Balazs, NAGY Roland, PERENYI Adam, JARABIN Andras Janos, SCHULCZ Rebeka, CSANÁDY Miklós, JÓRI József, ROVÓ László, KISS Geza Jozsef

Background - Several cochlear implant recipients experience functionality loss due to electrode array mal-positioning. The application of delicate perimodiolar electrodes has many electrophysiological advantages, however, these profiles may be more susceptible to tip fold-over. Purpose - The prompt realization of such complication following electrode insertion would be auspicious, thus the electrode could be possibly repositioned during the same surgical procedure. Methods - The authors present three tip fold-over cases, experienced throughout their work with Slim Modiolar Electrode implants. Implantations were performed through the round window approach, by a skilled surgeon. Standard intraoperative measurements (electric integrity, neural response telemetry, and electrical stapedial reflex threshold tests) were successfully completed. The electrode position was controlled by conventional radiography on the first postoperative day. Results - Tip fold-over was not tactilely sensated by the surgeon. Our subjects revealed normal intraoperative telemetry measurements, only the postoperative imaging showed the tip fold-over. Due to the emerging adverse perception of constant beeping noise, the device was replaced by a CI512 implant after 6 months in one case. In the two remaining cases, the electrode array was reloaded into a back-up sheath, and reinserted into the scala tympani successfully through an extended round window approach. Discussion - Future additional studies using the spread of excitation or electric field imaging may improve test reliability. As all of these measurements are still carried out following electrode insertion, real-time identification, unfortunately, remains questionable. Conclusion - Tip fold-over could be reliably identified by conventional X-ray imaging. By contrast, intraoperative electrophysiology was not sufficiently sensitive to reveal it.

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.

Hypertension and nephrology

[About the care of patients with hyperuricaemia and gout]

[This consensus document is intended to provide guidance for the effective and efficient treatment of asymptomatic individuals with high uric acid levels and gout patients.]

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.]