Lege Artis Medicinae

[LONG-TERM RESULTS OF ENDOSCOPIC SPHINCTEROTOMY - EFFECTS OF THE TRANSECTION OF BILE PAPILLA]

DÖBRÖNTE Zoltán

OCTOBER 20, 2004

Lege Artis Medicinae - 2004;14(10)

[The abolishment of the choledochoduodenal pressure gradient due to endoscopic sphincterotomy results in the enhancement of the enterohepatic circulation of the bile salts, in the reduction of the cholesterol saturation index and in the modification of the gallbladder function: the reduced gallbladder storage time and the increased ejection fraction facilitates gallbladder emptying. On the contrary, bacterial colonisation of the bile ducts due to duodenobiliary reflux plays a causative role in the increased risk of pigment stone formation. However, when the biliary tree is well-drained, no clinically relevant chronic inflammation develops, furthermore there is no evidence for an increased cancer risk caused by the duodenobiliary reflux. Long-term complications may occur in about 12%, as the recurrence of common bile duct stones, post-EST papillary stenosis, and biliary symptoms caused by retained gallbladder stones. Risk factors for recurrence of bile duct stones are juxtapapillary duodenum diverticulae and persistently dilated bile ducts being the main reason for papillary restenosis and sphincterotomies are mainly performed because of papillary stenosis. In cases of retained gallbladder with stones patency of the cystic duct and contractility of the gallbladder are important predictive factors of late gallbladder complications as it was confirmed by our investigations. Accordingly, small gallbladder stones may pass spontaneously after EST. The indication of a cholecystectomy following EST should be considered individually, particularly in elderly patients. As 30-year-experience confirms, EST is a safe and effective treatment of choledocholithiasis and papillary stenosis even in the long term, and also in young patients. Regular follow-up of patients with high risk for recurrent biliary symptoms is recommended to detect late complications and treat them endoscopically in time.]

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[INTRODUCTION - Intestinal lipodystrophy, Whipple’s disease is an uncommon, chronic, systemic bacterial infection. It occurs predominantly in Caucasian males older than 40 years. The gastrointestinal tract is the most frequently involved organ, with clinical manifestations such as abdominal pain, malabsorption syndrome with diarrhea and weigth loss. Patient may present with low grade fever or fever of unknown origin, arthritis, lymphadenopathy, skin hyperpigmentation, endocarditis, pleuritis and peripheral and central neurological manifestations. Due to the wide variability of symptoms, the clinical diagnosis is very difficult and it is often made only years or even decades after the initial presentation. CASE REPORT - A 51-year-old Caucasian race man was admitted to the hospital with weigth loss and signs of subileus, referred for suspected lymphoma. After the exploratory laparotomy and lymphadenectomy the histological and the electron microscopical diagnosis was Whipple’s disease which was confirmed with histology from deep duodenal biopsy. Trimethoprim and sulfamethoxazole therapy for 6 months resulted in complete clinical and molecular biological healing. CONCLUSION - Clinical signs of Whipple’s dease are non-specific and may mimic Crohn’s disease, coeliac disease, amyloidosis, macroglobulinaemia, histoplasmosis, infection with non-tuberculotic mycobacterium in AIDS patients and lymphomas. Therefore, differential diagnosis is of critical importance. The natural evolution of the disease without treatment is always fatal. Trimethoprim and sulfamethoxazole for at least 1 year is usually considered adequate to eradicate the infection.]

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[The author deals with the current situation and new trends of vaccinology by focusing on the interests of practitioners. The main topics are the changes of antigens (such as pertussis, measles, or poliomyelitis) to provide better efficacy and milder reactogenity or less adverse events. Purifying the vaccines, like thiomersal and human proteins free vaccines is another proven method to achieve better safety. New antigens e.g. Rota, Lyme, meningococcus B are in the pipeline of vaccinology. The aim of producing a combined vaccine is to achieve immunity against more diseases with less inconvenience for the patient, while achieving higher vaccine coverage (DPT-Hib-HBV-IPV). The epidemiological and clinical experiences will influence the current vaccine schedule such as revaccinations of MMR, and remove the need for revaccinations of BCG and hepaB. The special target groups of immunizations are the elderly and patients with chronic disease. Groups of specialists are working on the vaccine recommendation guidelines for certain risk groups. At the same time, with the successful eradication of polio in Europe the practitioners now have to face the antivaccination movement, as well. The main tools to convince people about the benefit of vaccinations are health education and information.]

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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

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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.

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[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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