Lege Artis Medicinae

[SUBCONJUNCTIVAL NEMATODE INFECTION]

ACZÉL Klára, DEÁK György, FARKAS Róbert, MAJOROS Gábor

JUNE 20, 2005

Lege Artis Medicinae - 2005;15(06)

[INTRODUCTION - Nematode infection of the eye occur only sporadically in the continental area. The pathogenic parasite in these cases is usually a Dirofilaria species, mostly D. repens. CASE REPORT - A case of human subconjunctival dirofilariosis is reported, where acquisition from abroad or animal contact in the background of the infection were excluded. The surgical removal of the entire living worm resulted in the complete cure of the patient. CONCLUSION - Knowing the occurrence of Dirofilaria infection of dogs and the increasing spread of the vector mosquitoes during the summer (in towns, too), the increasing occurrence of human dirofilariosis affecting the eye and orbital area in 10-20% of the cases must be taken into account.]

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Lege Artis Medicinae

[THE PLACE OF OPEN SURGICAL INTERVENTIONS IN THE ERA OF LAPAROSCOPIC HIATAL HERNIA RECONSTRUCTION AND ANTIREFLUX SURGERY]

ALTORJAY Áron, VARGA István, SÁRKÁNY Ágnes, TÓTH Sándor, MUCS Mihály, HAMVAS Balázs, PAÁL Balázs, THAN Zoltán

[INTRODUCTION - The leading role of laparoscopy in the surgical treatment of functional diseases of the gastro-esophageal junction has become indisputable. But has the time of the “classic”, open surgical interventions really gone for good? PATIENTS AND METHODS - Between January 1., 2000 and December 31., 2004 we performed hiatal reconstruction and antireflux plastics for 186 patients. 83.3% (155/186) of the operations was performed laparoscopically, while 16.7% (31/186) with the traditional approach. The average age of patients was 46.9 years, 7% of the operations was performed on children. In case of recurrent paraoesophageal hernias the surgical plan was drawn up based on the result of the barium swallow X-ray performed after endoscopic clipping of the Z-line. In case of a brachy-esophagus, we formed the neo-esophagus by performing the Collis-Nissen operation modified by us (Neodinium magnet + plastic sliding scale) from the traditional abdominal exposure. RESULTS - The indication for hiatal reconstruction and antireflux operation was sliding hernia in 68.2%, paraesophageal hernia in 17.8% and reflux disease in 14%. We observed signs of panmural esophagitis in 22%, while latent or true brachy-esophagus in 10.7%. Antireflux procedures were grouped as Nissen type operation in 82.7%, Toupet type in 9.67%, Narbona in 2.1%, Belsey-Mark IV in 1.61%, and resection type operation in 3.76%. To narrow the diaphragmatic openings, two sutures were needed in most cases (57.1%). Conversion to laparotomy was necessary in 3.2%. We observed recurrences in 3.3% after laparoscopic interventions. In case of open operations we experienced no recurrences in the studied period. The barium swallow X-ray examination performed after endoscopic clipping of the Z-line could reveal brachy-esophagus before the operation. CONCLUSION - Open surgical interventions can not fall into oblivion even in the age of laparoscopic hiatal reconstructions and antireflux plastics. Open surgical procedures are justified even in the new milennium in cases when the patient's medical history contains upper abdominal operations - due to an increased risk of injury because of adhesions -,in cases of primarily recurrent paraesophageal hernias after an unsuccessful open and/or laparoscopic reconstruction, as well as in cases of reflux with complications.]

Lege Artis Medicinae

[THE CLINICAL PHARMACOLOGIC BASIS OF THE SAFE USE OF STATIN ANALOGS]

KERPEL-FRONIUS Sándor

[Statins, specific inhibitors of the 3-hydroxy-3-methylglutaryl- coenzyme A (HMG-CoA), decrease significantly pathologically elevated cholesterol levels. The effectiveness and the side effects of the different analogs depend on their inhibitory potency, lipid solubility, active uptake into the liver cells and on the difference in their metabolism. The statins can be divided into three groups on the basis of their clinical effectiveness: the highly effective agents are rosuvastatin and atorvastatin; simvastatin exhibits an intermediate activity, while lovastatin, pravastatin and fluvastatin are the least active drugs. The main metabolic pathways of the statins are oxidation and glucoronidation and finally the spontaneous inactivation by lactone ring formation of the glucoronidated products. Gemfibrozil increases the plasma level of all statin analogs by inhibiting the activity of UGT1A1 and UGT1A3 isoenzymes of the UDPglucoronosyltransferase. Therefore, when a statinfibrate combination is needed, fenofibrate and bezafibrate are recommended, the metabolism of which are linked to other UGT isoenzymes. Similarly elevated plasma levels are produced by inhibiting the specific cytochrome isoforms participating in the oxidation of a particular statin. Severe side effects are rarely observed. The most frequent adverse reaction is the development of myopathy of various severity. Using various statins rhabdomyolysis occurred in 0.0-0.3 cases /100 000 statin prescriptions if the already withdrawn cerivastatin is not considered. The statin+gemfibrozil combination increases the number of rhabdomyolysis approximately tenfold. The long-term benefit of statin therapy far exceeds the risk of the treatment. For achieving very low lipid target values even the most effective statins must be used in high doses. Nevertheless, this goal cannot be reached in about 20% of the cases. High dose statin treatment should be administered with the gradual increase of the dose, tight control of the patients and by meticulously selecting the drugs given simultaneously. Further development can be expected from the application of agents with new mechanisms of action, such as the cholesterol uptake inhibitor ezetimibe.]

Lege Artis Medicinae

[Life’s deep-frozen libraries - Stone’s throw from the new generation of biobanks]

PÓS Zoltán

Lege Artis Medicinae

[SCIENTIFIC DIGEST]

Lege Artis Medicinae

[DIAGNOSTIC POSSIBILITIES IN HEAD AND NECK MRI]

GŐDÉNY Mária

[Digital cross-sectional imaging techniques, especially computed tomography (CT) and magnetic resonance imaging (MRI) play an important role in the diagnosis of pathologic conditions affecting the head and neck. MRI, because of its superb soft tissue contrast resolution and multiplanar imaging ability gives the most information regarding the origin and the extent of a laesion, intracranial extension, perineural-, as well as bone marrow involvement and play key role in the management of different diseases. Careful observation of the characteristic radiological features usually leads to correct diagnosis, however, some of the lesions are not typical, looking very similar and can be difficult to differentiate from each other. The purpose of the present article is to provide an overview of the most common pathologic conditions examined with MRI.]

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[LETHAL SEPTIC INFECTION IN RHEUMATOID ARTHRITIS]

BÉLY Miklós, APÁTHY Ágnes

[INTRODUCTION - The lethal septic infection was studied in a randomized (non-selected) autopsy population of 234 in-patients with rheumatoid arthritis. The patients died at the National Institute of Rheumatology between 1970 and 1999. PATIENTS AND METHOD - The aims of this study were to determine the prevalence of lethal septic infection with or without purulent arthritis in rheumatoid arthritis; the relationship between purulent arthritis and lethal septic infection; the clinically missed diagnosis of lethal septic infection and purulent arthritis; the influence of the main complications and associated diseases on lethal septic infection with and without purulent arthritis; the pathogens in lethal septic infection; and the clinico-laboratory parameters associated with lethal septic infection in rheumatoid arthritis. RESULTS - Lethal septic infection was found in 31 (13.24%) of 234 rheumatoid arthritis patients. Purulent arthritis complicated lethal septic infection in 15 (6.4%) of 31 patients. There was a significant association between lethal septic infection and purulent arthritis. Sepsis was detected clinically in 17 of 31 lethal cases and purulent arthritis was detected 9 of 15 septic infection complicated with suppurative articular processes. The coexistent complications (systemic vasculitis, AA amyloidosis), and associated diseases (tuberculosis with or without miliary dissemination, malignant tumors, diabetes mellitus) did not influence the prevalence of septic infection. The most frequent pathogenic agents were: Staphylococcus aureus, Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa, Klebsiella species, Streptococcus species. The patients with septic infection had significantly lower levels of beta-globulin, and higher values of Waaler-Rose or latex fixation test in comparison to patients without septic infection or without complications. CONCLUSION - Lethal septic infection may exist in rheumatoid arthritis without the classical clinical symptoms of sepsis, and clinically latent suppurative processes may be found at autopsy. The missed clinical diagnosis of a fatal complication is explained by the weak immune response and atypical clinical symptoms of elderly patients mainly treated with steroids and immunosuppressive drugs.]

Lege Artis Medicinae

[MUMMIFIED ANCYLOSTOMA DUODENALE IN THE DUODENUM CAUSING SEVERE ANAEMIA]

KOVÁCS Valéria, SZABÓ Andrea, GODA Mária, MAGYAR Éva, RÁCZ István

[INTRODUCTION - We report on a patient with the remains of a mummified hookworm (Ancylostoma duodenale) found in his duodenal bulb which was later successfully removed with a polypectomy snare. CASE PRESENTATION - An 81-year-old man who took 100 mg aspirin daily was admitted because of severe iron-deficiency anaemia. After transfusion with 5 units of packed red blood cells upper endoscopy was performed. On the anterior wall of the duodenal bulb an 8 to10 mm long thread-like foreign body was found embedded in a sessile polyp-like mucosal protuberation with ulcerated inner margin. The entire pathologic structure was removed by mucosectomy. Histologically the thread-like body was found to be a lifeless female Ancylostoma duodenale containing a large amount of eggs and the surrounding ulcerated mucosa was also deeply infiltrated by hookworm particles. Follow-up endoscopy after four months showed normal gastroduodenal mucosa. CONCLUSION - An interesting case of hookworm infection is reported where an old infection caused chronic mucosal injury with reactive inflammation and mucosal ulceration. Aspirin therapy provoked chronic occult bleeding causing severe anaemia. With the endoscopic removal of the unusual structure total mucosal and clinical healing was achieved.]

Lege Artis Medicinae

[Current questions on Pneumococcus infections: cardiovascular complications, cardiotoxicity and new opportunities for prevention among elderly people]

LUDWIG Endre

[The respiratory tract infections, first of all severe pneumonia are associated with severe cardiovascular adverse events the significance of which that had not been recognised so far. Among the adverse events, the development of acute coronaria syndromes, heart failure, arrhythimias are the most important ones leading to significatly higher mortality even after several years. In the development of acute coronaria syndrome , the proinflammatory activites play the cenral role leading to the instability of coronaria plaques and plaque rupture associated with formation of platelet thrombi. The constriction of coronariae, peripherial vasodilatation and hypoxia also contribute to the deleterius complications. The role of pneumococci in this process seems to be especially significant since this pathogen exhibit a unique direct cardiotoxic effect, namely directly invades the myocardium and produce cardiotoxic substances. As a consequence, impairement of cardiomyocite function and contractility and formation of microscopic lesions in which later collagen deposition and long-term cardiac scarring can be detected. These pathological processes are developed despite of antibiotic treatment, consequently, vaccination against pneumococcal infection seems to be the only method for efficacious prevention of the myocardium damage and cardiovascular adverse events. According to the results of the CAPITA study, the conjugate polisaccharide vaccine decrease the number of pneumococcal pneumonia and invasive pneumococcal infections by 45 and 75% resp. in the elderly population. The recognition of the direct and indirect role of pneumococci in the development of early and late cardiovascluar adverse events gives a new aspect of the beneficial effect of efficacious vaccination.]

Lege Artis Medicinae

[What is worth to know about COVID-19 for (not only) a cardiologist]

HEPP Tamás, CSÉKE Balázs, BENCZÚR Béla

[SARS-CoV-2 virus infection sprang from Wuhan the capital of the Chinese Hubei province, at the end of 2019 and caused a worldwide pandemic with 1.5 million confirmed cases and claimed almost 100 000 victims until the beginning of April, 2020. First analyses of Chinese COVID-patients confirmed that diabetes, hypertension, and cardiovascular diseases were highly prevalent among SARS-CoV2 infected patients, and might be associated with poor outcome. As previously shown for SARS-CoV-1, SARS-CoV-2 similarly utilizes ACE2 as receptor for viral alveolar cell entry. A suspicion has arisen that the widely used ACE-inhibitor/ARB therapy could be potentially harmful for patients suffering from COVID-19 infection as these agents upregulate the ACE2-expressions. From the other point RAAS-blockade might be beneficial due to fact that ACE2 counters the deleterious effects of Angiotensin II. Authors provide a comprehensive over­view of the most recent literature and summarize the link between COVID-19 and car­diovascular disease. It is important to em­phasize that there are no available hu­man evidences confirming if the RAAS-in­hi­bitor therapy were harmful or helpful in pa­tients suffering from COVID-19.]

Lege Artis Medicinae

[Cirrhosis and its complications: diagnostic and treatment options]

PÁR Alajos

[During the past two decades, the management of complications of cirrhosis has dramatically changed, which substantially improved the patients’ survival. The present paper provides an overview of the diagnosis, treatment and prevention of cirrhosis and its complications including portal hypertension, variceal bleeding, ascites, hepatorenal and hepatopulmonary syndromes, encephalopathy and bacterial infection. Besides noninvasive diagnostic methods, pharmacological and endoscopic treatment modalities are discussed, with emphasis of the importance of nonselective beta-blockers, vasoactive therapy, antibiotic and albumin medication. Prevention and early diagnosis of cirrhosis as well as new pharmacological agents under development presumbaly result in further development in the management of patients with advanced, chronic liver disease.]