Lege Artis Medicinae

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MATOS Lajos

JANUARY 20, 2005

Lege Artis Medicinae - 2005;15(01)

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Lege Artis Medicinae

[Report from the 2004 Congress of the American Society for Cardiology]

PFLIEGLER György

Lege Artis Medicinae

[ALA (5-aminolevulinic acid)-induced protoporphyrin IX fluorescence in the endoscopic diagnostic and control of pharyngo-laryngeal cancer]

CSANÁDY Miklós, KISS G. József, IVÁN László, JÓRI József, CZIGNER Jenő

Lege Artis Medicinae

[EVIDENCE BASED ORAL ANTIDIABETIC THERAPY]

JERMENDY György

[Oral antidiabetic drugs are used in type 2 diabetic patients when diet and physical exercise have failed. The oral antidiabetic drugs available in Hungary can be classified according to their main effect. In this regard, antihyperglycaemic drugs with no hypoglycaemic potential (alfaglucosidase inhibitors, biguanides, thiazolidinedions) and drugs with a potential of insulin secretion (sulfonylureas, prandial glucose regulators) can be distinguished. Acarbose is mainly used in order to decrease the postprandial glucose excursion. Metformin is the drug of choice for obese, insulin resistant diabetic subjects while buformin is not preferable anymore since the availability of metformin. Rosiglitazone, the only thiazolidine-dion derivative in Hungary, can be used in combination therapy in diabetic subjects with clinical characteristics of the metabolic syndrome. The list of sulfonylureas contains five drugs in Hungary which enables differential therapeutical strategies to be performed. The prandial glucose regulators can be used either in monotherapy or in combination with other drugs at the relatively early stage of the disease. At present, the recommendations for treating diabetic patients with oral antidiabetic drugs can be based on clinical evidences.]

Lege Artis Medicinae

[POST-CHOLECYSTECTOMY SYNDROME AND SPHINCTER OF ODDI DYSFUNCTION]

MADÁCSY László

[After cholecystectomy, recurrent biliary-like pain, alone or in association with a transient increase in liver enzymes may be the clinical manifestation of the sphincter of Oddi dysfunction (SOD). Most of the clinical information concerning SOD refers to postcholecystectomy patients who have been classified according to clinical presentation, laboratory results and endoscopic retrograde cholangio-pancreatography (ERCP) findings as: biliary type I, biliary type II, and biliary type III. The prevalence of SOD has been reported to vary from 9 to 11% in unselected patients having postcholecystectomy syndrome up to 68% in a selected group of patients without organic disorder and complaining of postcholecystectomy pain. Diagnostic work-up of postcholecystectomy patients for suspected SOD includes liver biochemistry and pancreatic enzyme levels plus negative findings of structural abnormalities. Usually this would include transabdominal ultrasound, gastroscopy and ERCP. Depending on the available resources, endoscopic ultrasound and magnetic resonance cholangiography may precede endoscopic retrograde cholangiopancreatography in specific clinical conditions. In SOD patients, the endoscopic sphincter of Oddi manometry is the gold-standard diagnostic method to evaluate the abnormal motor function of the sphincter of Oddi. Quantitative evaluation of bile transit with cholescintigraphy is valuable in the decision whether to perform sphincter of Oddi manometry or to treat. The standard treatment for SOD is sphincterotomy. In biliary type I patients, the indication for endoscopic sphincterotomy is straightforward without the need of additional investigations. Slow bile transit on cholescintigraphy in biliary type II patients is an indication to perform endoscopic sphincterotomy without sphincter of Oddi manometry. Positive Nardi or Debray evocative test in biliary type III patients is an indication to perform sphincter of Oddi manometry. Medical therapy with nitrosovasodilatators, Ca-channel blockers, theophyllin compounds, β2 receptor agonists and anticholinerg drugs can be useful in biliary type II and type III patients preceding endoscopic sphincterotomy. If medical therapy fails, one might proceed to perform ERCP and endoscopic sphincterotomy but only in patients with abnormal SO manometry results.]

Lege Artis Medicinae

[CARCINOID TUMORS]

RÁCZ Károly

[Carcinoid tumors are rare neoplasms: they are traditionally divided into three subgroups (foregut, midgut and hindgut tumors). Despite their neuroendocrine cell origin and the similarities in their histological structure, the molecular background, pathogenesis, clinical features, diagnostic and therapeutic procedures, as well as the prognosis of carcinoid tumors located at different sites may be highly variable. Although sensitive biochemical markers (serum chromogranin A concentration, urinary 5- hydroxyindoleacetic acid excretion) and localization methods (somatostatin receptor scintigraphy, positron emission tomography) are available, a considerable number of patients are only diagnosed at the late stages of the disease. When surgical cure is not obtainable such as in cases with advanced metastatic disease, surgical procedures to reduce tumoral tissue should be still considered. At present, the most effective drugs for the symptomatic treatment of carcinoid tumors are somatostatin analogues (octreotide, lanreotide). In addition to their beneficial effect on clinical symptoms they may stabilize tumor growth for many years and rarely, tumor regression is produced. Radioisotope-labelled somatostatin analogues are presently under clinical evaluation, which may offer new therapeutic means for patients with carcinoid tumors.]

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[Dizziness - vertigo Warning symptoms in vertebrobasilar ischemia - Part I. ]

FAZEKAS András

[Dizziness and vertigo - like headache - are the most common complaints which leads patients to visit the doctor. In spite of the headache - which may be primary (e.g. migraine) or symptomatic - dizziness and vertigo do not appear to be a separate nosologic entity but rather the symptoms of several neurological disorders. For differential diagnosis, interdisciplinary thinking and activity is needed because the vestibular, neurological and psychiatric disorders might have a common role in the development of symptoms and further overlapping can also occur. The vascular disorders of the vertebrobasilar system are discussed in detail in this review. The importance, occurrence and causes of vertigo as a warning symptom is in the focus. The author draws attention to life-threatening conditions with acute onset in cases of the posterior scale ischemia and emphasizes the importance of the correct and early diagnosis. The author tries to clear up the nihilistic aspect in treating of stroke and stresses the necessity of thrombolysis and interventional radiological procedures which may be the only chance for the recovery of the patients. The pharmacological prevention of recurrent vascular events is also important and obligatory for the clinicians.]

Hungarian Radiology

[Ultrasound of the acute pediatric scrotum]

COLEY D. Brian

[Proper evaluation of the acute scrotum, like any condition, starts with a history and physical examination by an experienced clinician. Often this is all that is needed to arrive at an accurate diagnosis, which then allows prompt and appropriate treatment. However, the true nature of the underlying disease producing scrotal pain is not always clear, and the consequences of error (testicular loss) are undesirable. Ultrasound is the single most useful imaging tool for imaging the scrotum. While nuclear medicine studies can help assess blood flow, the combination of anatomic detail provided by modern ultrasound equipment and the ability to assess blood flow and perfusion with color Doppler makes ultrasound invaluable. Properly performed and interpreted, ultrasound provides very high sensitivity and specificity for acute scrotal conditions. Understanding of the conditions that produce acute scrotal pain in children will improve one’s diagnostic abilities. The most important diagnosis to consider is testicular torsion, since untreated this will result in testicular death. While testicular torsion can occur at any age, it is most common in the perinatal and peripubertal age groups. Torsion of a testicular appendage is a frequent cause of scrotal pain in prepubertal males. The sonographic findings can mimic epididymitis, but diligent and focused sonographic examination can make the diagnosis. Epididymitis typically affects postpubertal males, but can be seen in younger patients with functional or anatomic urinary tract anomalies. Sonographic evaluation of the post-traumatic painful scrotum can help to differentiate injuries that can be managed conservatively and those that require surgery. Less common causes of scrotal pain include hernias and hydroceles, vasculitis, and idiopathic edema. Understanding the characteristic sonographic features of these conditions allows the examining physician to make more accurate and confident diagnoses. It is hoped that this review article will help to promote this understanding.]

Clinical Neuroscience

[Functional imaging of cerebrospinal fluid pathology]

BORBÉLY Katalin

[The most common problem addressed by dynamic radionuclide imaging of cerebrospinal fluid (CSF) abnormalities is differentiating patients with normal-pressure hydrocephalus (NPH) from those with other forms of degenerative brain disorder who would clearly not benefit from surgical treatment by ventricular shunting. Radionuclide cisternography (RC) SPECT and regional cerebral blood flow (rCBF) SPECT are critically important for the diagnosis and therapy management of patients with chronic hydrocephalus. However, radionuclide imaging is helpful not only in identifying patients with NPH showing improvement after shunting. RC reveals tracer activity outside the intracranial cavity, indeed. The importance of establishing the diagnosis arises from the fact that untreated leaks can be followed by meningitis in up to one quarter of patients. CSF collections may communicate with the subarachnoid space. RC SPECT has proved useful in assessing the communication of the arachnoid cysts (CSF collection) with the ventricular or subarachnoid compartment. Improved anatomical detail revealed by SPECT imaging is helpful in solving problems of the CSF pathology. Sensitive and accurate assessments of normal and disordered CSF dynamics can be obtained with RC SPECT.]

Clinical Neuroscience

[Friedreich-ataxia - diagnosis after a decade. Differential diagnosis of inherited spinocerebellar ataxias]

VITASZIL Edina, JELENCSIK Ilona, SZIRMAI Imre

[The clinical diagnosis of inherited spinocerebellar ataxias is difficult, because phenotypes frequently overlap. The authors attempt to review the different inherited ataxia syndromes, discussing the most frequent one, Friedreich-ataxia in detail. The case of a patient with Friedreich-ataxia is presented, where the genetically supported diagnosis has been made more than ten years following the onset of the symptoms, after several hospitalizations and misdiagnosis. The correct diagnosis can be established based on the Geoffroy-Harding criteria and gene mutation analysis.]

Hypertension and nephrology

[Hypertension and atrial fibrillation. Part 1. - Epidemiological data. The pathomechanism of PF in hypertension]

KÉKES Ede

[Atrial fibrillation (PF) is the most common arrhythmia on the basis of analyzes conducted in different regions of the world. The main reason for this is the aging of the population. High blood pressure is one of the major factors of mortality in both developed and poor economical countries. The combined presence of the two diseases presents many hazards to our body. The most significant of these is the development of thromboembolic stroke, which is constantly increasing with age. The author analyzes in detail the aetiology called atrial cardiomyopathy, behind which there are complex structural, architectural, contractile and electro-physiological changes and leads to clinical manifestation of PF.]