Lege Artis Medicinae

[The Cultural History of the Discovery of Insulin ]

FELKAI Péter

APRIL 20, 2014

Lege Artis Medicinae - 2014;24(04)

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Lege Artis Medicinae

[Treatment of clubfoot with the Ponseti method]

KISS Sándor, TEREBESSY Tamás, HORVÁTH Nikoletta, DOMOS Gyula, GRESITS Orsolya, SZŐKE György

[INTRODUCTION - Congenital clubfoot is a severe developmental disorder. Without treatment, only the lateral border of the foot can be loaded and the sole faces the contralateral side. Good results can usually be achieved with early redression by serial casting (generally from the first week after birth) followed by extensive surgery at age six months (Achilles tendon lengthening, capsulotomy of the talo-crural and subtalar joints). The above procedure has been revolutionised by the method described by Ignacio Ponseti based on his own experiences, which has modified the casting technique and has also radically changed the surgical intervention. In this paper we report our experiences with Ponseti’s method and draw attention to this less invasive procedure. PATIENTS AND METHODS -The essence of Ponseti’s techniqe is reposition of the talonavicular joint, for which the foot is corrected in a different way compared with previous practice. Following redression for 8-10 weeks, percutaneous complete Achilles tenotomy is performed and the foot is fixed for further three weeks. A special orthesis is worn in the following 6 months for 24 hours a day and the same ortézis is suggested for overnights afterwards. In our institution, 171 clubfeet (45 unilateral, 126 bilateral; 84 right, 87 left; 25 girls, 83 boys) were treated between 2007 and 2012. Our results were evaluated with the help of the Pirani score, which is a widely used method for assessment of clubfoot treatment. RESULTS - Results were evaluated at the beginning of the treatment, at the end of redression and after percutaneous Achilles tenotomy. Pirani scores were 4.54±1.30; 1.48±1.02 and 0.59±0.45 respectively. The average dorsal flexion of the ankle joints was 23±12 degrees. CONCLUSION - Our own observations support the good results published in the literature, therefore the less invasive Ponseti method is suggested for the primary treatment of congenital clubfoot.]

Lege Artis Medicinae

[Switching from human basis-bolus insulin treatment to analog insulins, from clinical aspects]

KIS János Tibor

[During treatment of patients with type 2 diabetes, early insulin treatment improves beta cell function, slows the progression of the disease and improves glycaemic values in the long term. In these cases, the strictest glycaemic target values can be achieved by basal-bolus insulin treatment. Furthermore, the development of chronic complications can be halted most effectively by normoglycaemia. It is a special task to switch from human basal-bolus insulin treatment to analog insulins. The author presents practical, clinical aspects of this switching through a case study.]

Lege Artis Medicinae

[The World of Toulouse-Lautrec – Lithographs in the Museum of Fine Arts ]

NAGY Zsuzsanna

Lege Artis Medicinae

[Viral hepatitis in focus: messages of the hepatological conference about screening, diagnostics and possibilities of effective therapy]

NEMESÁNSZKY Elemér

Lege Artis Medicinae

[Correlations between Health, Happiness and Well-being in the Modern Society ]

PIKÓ Bettina

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[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.]

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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.

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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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Simultaneous subdural, subarachnoideal and intracerebral haemorrhage after rupture of a peripheral middle cerebral artery aneurysm

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The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histolo­gical examination excluded mycotic etiology of the aneu­rysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.

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

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[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.]