Authors:L. Nagy, G. Török, N. Vajda, and I. Gerlei
Several sorbents were prepared by precipitating zirconium phosphate on activated carbon support material. The main parameters
of the chemical procedure were optimized in order to obtain the highest decontamination factors which can be achieved in the
case of Cs+, Sr2+ and I− ions. For the characterization of the sorbents, sorption isotherms and capacity data were determined. The reproducibility
of the preparation is about 10%.
Authors:A. Doros, B. Nemes, Z. Máthé, A. Németh, E. Hartmann, Á. P. Deák, Zs. F. Lénárd, D. Görög, I. Fehérvári, Zs. Gerlei, J. Fazakas, Sz. Tóth, and L. Kóbori
Hepatic artery complication represents recognized sequel of liver transplantation that carries significant morbidity and mortality. Besides retransplantation, hepatic artery recanalization is provided surgically, or by percutaneous angioplasty and stent placement. This study provides an analysis of a single center experience comparing surgical and interventional treatments in cases of early hepatic artery complications.
In this retrospective single center study, 25 of 365 liver transplant recipients were enrolled who developed early hepatic artery complication after transplantation. Percutaneous intervention was performed in 10 cases, while surgical therapy in 15 cases. Mean follow-up time was not different between the groups (505±377 vs. 706±940 days, respectively).
6 patients in the Intervention Group and 10 patients in the Surgery Group are alive. The retransplantation rate (1 and 3) was lower after interventional procedures, while the development of biliary complications was higher. The mortality rate was higher after operative treatment (2 and 5).
Interventional therapy is a feasible and safe technique for treatment of early hepatic artery complication after transplantation. Being less invasive it is an invaluable alternative treatment having results comparable to surgical methods.
Authors:Eniko Sarvary, D. Lee, J. Varadi, M. Varga, I. Gaal, R. Chmel, G. Beko, Z. Kanyo, B. Nemes, Zs. Gerlei, J. Fazakas, L. Kobori, Zs. Herold, S. Németh, I. Galoczi, J. Jaray, and R. Langer
The value of urinary cytology in the diagnosis of different pathological conditions in renal transplantation is particularly important. Manual microscopic urinalysis is a high-volume procedure that currently requires significant labour.
Objective: To automate the sediment evaluation and to make this more accurate using the Iris Diagnostics Automated Urine Microscopy Analyzer (iQ200). Our goal was to compare the manual and automated microscopic data to apply iQ200 in renal function monitoring.
Method: The iQ200 uses digital imaging and Auto Analyte Recognition software to classify urine constituents into 12 analyte categories and quantitatively report.
Results: We determined cut-off values of urine particles in every category, which correlated well with manual microscopic results. The iQ200 was more sensitive for pathological casts than manual microscopic analysis. iQ200 helped the operator to differentiate between isomorphic and dismorphic erythrocytes and between lymphocytes and granulocytes, too. Every pathological constituent could be recognized, which is very important for early recognition of renal impairment, graft rejection and urinary tract infection.
Conclusions: The iQ200 system automatically classifies 12 particles, significantly reducing the need for additional sample preparation, manual microscopic review achieving a high degree of standardization in urinalysis.
Authors:Enikő Sárváry, Zs. Gerlei, E. Dinya, E. Tóth, M. Varga, R. Chmel, M. Molnar, A. Remport, B. Nemes, L. Kobori, D. Görög, J. Fazakas, I. Gaal, J. Járay, F. Perner, and R. Langer
Patients on hemodialysis (HD) and renal transplant recipients (RT) have a high prevalence of HCV infection. The aim of our study was to determine the prevalence of HCV-RNA in the anti-HCV positive patients and to compare the biochemical parameters of PCR(+) and PCR(−) subgroups. Methods: The 525 sera were screened for anti-HCV. HCV-RNA was detected by polymerase chain reaction (PCR) and liver enzymes [SGOT, SGPT, GGT, α-glutathione S-transferase (GST)] were measured. Results: Active viraemia was found only in 187 of 289 (65%) seropositive HD patients in contrast to 53 of 53 (100%) of seropositive RT patients. Significantly increased (p<0.05) GST values (9.9 μg/l) were found in the PCR(+) subgroups compared to GST levels (2.7 μg/l) of the PCR(−) subgroups. Elevated GST concentration was found in 80% (208/251) of PCR(+) patients. The measured enzymes were not elevated in HCV infected patients. Six percent of HD and 11% of RT patients were screened before seroconversion. Diagnostic sensitivity (80%) and specificity (79%) of GST were calculated as good for early liver damage caused by HCV. In contrast, the sensitivity of the measurement of other liver enzymes were very weak (SGOT: 8%; SGPT: 10%; GGT: 42%). Conclusion: The significantly higher viraemia of the RT subgroup could be related to the immunosuppressive therapy. Increased GST level may be a useful indicator of tissue damage during HCV infection. If HCV infection is suspected, PCR and GST measurement should be performed, even if anti-HCV result is negative.
Authors:E. Hartmann, A. Németh, Gy. Juharosi, Zs. Lénárd, P. Á. Deák, V. Kozma, P. Nagy, Zs. Gerlei, I. Fehérvári, B. Nemes, D. Görög, J. Fazakas, L. Kóbori, and A. Doros
Hepatocellular carcinoma, which has developed in liver cirrhosis is a disease where liver transplantation can provide a cure both for the tumour and the underlying liver damage. However, patients can only be transplanted when the tumour number and size do not exceed the Milan criteria. Tumour ablation methods — such as radiofrequency ablation — can provide a chance to make the patient eligible for transplantation. Among the 416 Hungarian liver transplanted patients there are 6 who had received different types of ablative therapy as bridging therapy in different institutions. On the basis of analysis of the patients' data we created a guideline for the treatment of cirrhotic patients with hepatocellular carcinoma with the aim of developing a uniform Hungarian approach.