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Survival of tunneled hemodialysis catheters after percutaneous placement

100%
Weber E., Liberek T., Wołyniec W., Gruszecki M., Rutkowski B.
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2016
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vol. 63
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issue 1
139-143
EN
Background. Tunneled catheters are becoming increasingly used as a permanent dialysis access. Easy way of insertion and good long-term patency make them competitive to fistulas in some groups of patients. Methods. Late complications and survival of 180 tunneled catheters inserted from June 2010 to December 2013 in 171 unselected hemodialysis patients were analyzed. Results. The cumulative time of observation was 2103.5 patient-months and median observation was 9 months (range of 0.5-45 months). Only 19 out of 180 catheters were removed due to complications (12 for infections, 4 due to malfunction and 3 because of mechanical damage). Majority of catheters were removed electively: 27 after maturation of arterio-venous fistula (AVF), 4 after kidney transplant, 5 after transfer to peritoneal dialysis and 3 due to the recovery of renal function. At the end of the observation, 58 catheters were still in use and 64 patients had died with functioning catheter. When censored for elective catheter removal and patient death, 88.2% of catheters survived for 1 year. Catheter survival was significantly better in older patients (over 65 years, in comparison to patients < 65 years, p = 0.046). Conclusions. Nearly 90% of all inserted catheters gave reliable dialysis access as long as it was needed. Among them, over 30% of the inserted catheters were in use at the end of the observation period, and over 30% of patients had died with a functioning catheter. The results of tunneled catheters survival are encouraging and they should be taken into consideration during decision-making on vascular access, especially in the older patients.
2
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Prolonged renal failure in the course of atypical ethylene glycol intoxication

86%
Liberek T., Śliwarska J., Czurak K., Perkowska-Ptasińska A., Weber E., Rutkowski B.
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2013
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vol. 60
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issue 4
661-663
EN
Ethylene glycol poisoning is not an uncommon cause of an acute renal injury. In this paper we present case of prolonged renal failure in the course of ethylene glycol intoxication. Due to the low dose of ingested ethylene glycol and concomitant ethanol consumption, the neurodepressive phase of the intoxication was rather mild and patient presented to the hospital on the ninth day after poisoning with established renal failure. The diagnosis of the specific cause of renal injury was facilitated by the renal biopsy.
3
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Clinical parameters of inflammatory bowel disease in children do not correlate with four common polymorphisms of the transforming growth factor β1 gene

59%
Liberek A., Jakóbkiewicz-Banecka J., Kloska A., Świderska J., Kmieć Z., Łuczak G., Wierzbicki P., Liberek T., Marek K., Plata-Nazar K., Sikorska-Wiśniewska G., Kamińska B., Węgrzyn G.
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2011
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vol. 58
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issue 4
641-644
EN
Transforming growth factor β1 (TGF-β1) is a cytokine affecting cell proliferation and development, which also has an immunomodulatory activity. Correlations between polymorphisms of the TGF-β1 gene and clinical parameters of inflammatory bowel disease (IBD) were reported previously in adults. Here, we tested whether such correlations occur in pediatric patients suffering from IBD. One hundred and four pediatric IBD patients were involved in this study. Among them, 36 were diagnosed with Crohn's Disease (CD) and 68 were diagnosed with ulcerative colitis (UC). The control group consisted of 103 children, in which IBD was excluded. TGF-β1 levels were determined in plasma and intestinal mucosa samples. The presence of the TGF β1 protein and the amount of TGF β1 mRNA were estimated in intestinal mucosa by immunohistochemistry and reverse transcription Real-Time PCR, respectively. Four common polymorphisms of the TGF-β1 gene were investigated: -800G/A, -509C/T, 869T/C and 915G/C. No significant correlation between TGF-β1 genotypes and (i) TGF-β1 levels in plasma and tissue samples, (ii) TGF-β1 gene expression efficiency in intestinal mucosa, (iii) IBD clinical parameters and (iv) inflammatory activity could be detected in children suffering from IBD. We conclude that, contrary to previous suggestions, the four common polymorphisms of the TGF-β1 gene do not influence the susceptibility to or clinical parameters of IBD in the tested population of children.
4
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Transforming growth factor β1 protein and mRNA levels in inflammatory bowel diseases: towards solving the contradictions by longitudinal assessment of the protein and mRNA amounts

59%
Liberek A., Kmieć Z., Wierzbicki P., Jakóbkiewicz-Banecka J., Liberek T., Łuczak G., Plata-Nazar K., Słomińska-Frączek M., Kaszubowska L., Gabig-Cimińska M., Węgrzyn A.
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2013
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vol. 60
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issue 4
683-688
EN
Previously published studies on levels of the transforming growth factor-β1 (TGF-β1) protein and mRNA of the corresponding gene in patients suffering from inflammatory bowel diseases (IBD) gave varying results, leading to contradictory conclusions. To solve the contradictions, we aimed to assess longitudinally TGF-β1 protein and mRNA levels at different stages of the disease in children suffering from IBD. The study group consisted of 19 pediatric patients with IBD at the age between 3.5 and 18.4 years. The control group consisted of 42 children aged between 2.0 and 18.0 years. The plasma TGF-β1 concentration was measured with ELISA. mRNA levels of the TGF-β1 gene isolated from samples of the intestinal tissue were assessed by reverse transcription and real-time PCR. Levels of TGF-β1 protein in plasma and corresponding mRNA in intestinal tissue were significantly higher in IBD patients than in controls. TGF-β1 and corresponding transcripts were also more abundant in plasma and intestinal tissue, respectively, in patients at the active stage of the disease than during remission. In every single IBD patient, plasma TGF-β1 level and mRNA level in intestinal tissue was higher at the active stage of the disease than during remission. Levels of TGF-β1 and corresponding mRNA are elevated during the active stage of IBD but not during the remission. Longitudinal assessment of this cytokine in a single patient may help to monitor the clinical course of IBD.
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