Balkanov, Trajan
Preferred name
Balkanov, Trajan
Official Name
Balkanov, Trajan
Main Affiliation
Email
trajan.balkanov@medf.ukim.edu.mk
26 results
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Item type:Publication, P1102EVALUATION THE EFFICACY OF MEDIUM CUT- OFF MEMBRANE DIALYZERS AND COMPARISON WITH HIGH FLUX DIALYZERS IN CONVENTIONAL HEMODIALYSIS(Oxford University Press (OUP), 2020-06-01); ; ; ;Biljali, SefedinHemodialysis (HD) is the most widely used modality of renal replacement therapy. The high-flux dialyzers in standard hemodialysis offer numerous benefits for ESRD patients, such as, increasing the uremic toxins removal and improving patients survival, reduced patients admission and morbidity. A new class of membranes, medium cut-off (MCO) membranes, has been designed to achieve better removal capacities for middle and large middle molecules, as well as to ensure the retention of albumin in hemodialysis (HD) treatments. We evaluated the removal efficacy of Theranova® in standard HD in comparison with standard high- flux HD.</jats:p> </jats:sec> <jats:sec> <jats:title>Method</jats:title> <jats:p>Four stable HD patients (M/F 1/4) were included in 12-weeks small observational pilot study in HD with Theranova® 400 (sup. 1.7 m2) and Theranova® 500 (sup. 2.0 m2) dialyzers. Each patient was assessed four times, T0 with standard high flux dialyzers, T1 at 1 month, T2 at second month and T3 at third month, by measuring pre and post-HD samples of: urea, creatinine, beta2-microglobilin (B2M), myoglobin, albumin and FLC-k, FLC-λ . Data are reported as mean ± standard deviation (SD). The removal rates of uremic toxins are expressed as percentages.</jats:p> </jats:sec> <jats:sec> <jats:title>Results</jats:title> <jats:p>The average removal rates for the uremic toxins with standard high-flux membranes were 18.4% for B2M, 14.3% for Myoglobin, 19.8 % for FLC-k and 17.4 % for FLC-λ. The data showed a higher average removal rate for all the uremic toxins with Theranova® dialyzers for B2M, Myoglobin, FLC-k and FLC-λ (62.7%, 56.9%, 63.5%, 54.6%, respectively) during the 3 months of follow up. The using of Theranova® dialyzers in standard HD was enough to significantly decrease the pre-dialysis value of Urea (17.72 ± 2.26 vs 13.75 ± 3.75, p=0.001), Creatinine (700.50 ± 315.07 vs 570.00 ± 206.64, p=0.021), B2M (40.90 ± 11.00 vs 29.00 ± 4.64, p=0.005), FLC-k (267.25 ± 113.28 vs 225.25 ± 100.62, p=0.018), FLC-λ (324.25 ± 116.12 vs 215.23 ± 64.44, p=0.011), Myoglobin ( 199.96 ± 124.41 vs 137.00 ± 83.14, p= 0.049). Finally, albumin retention was observed with Theranova® dialyzers, between T0 and T3 it increased significantly (40.50 ± 4.79 vs 42.25 ± 4.50, p=0.0001).</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusion</jats:title> <jats:p>Compared to high-flux dialysis membranes, novel medium cut-off (MCO) membranes show greater permeability for larger middle molecules in mid -term report. But the long term analysis and larger number of patients is necessary to evaluate a clinical significance of this innovative therapy.</jats:p> </jats:sec> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Efficacy of Medium Cut-Off Dialyzer and Comparison with Standard High-Flux Hemodialysis(S. Karger AG, 2021-07); ; ;Biljali, Sefedin; Background: A new medium cut-off (MCO) membranes has been designed to achieve better removal capacities for middle and large middle molecules in hemodialysis (HD) treatment. Aim: The aim of this study was to evaluate the removal efficacy of Theranova® in standard HD in comparison with standard high-flux HD. Methods: Four HD patients (M/F 1/4) were included in 12-week observational pilot study in HD with Theranova® 400 and Theranova® 500 dialyzers. Each patient was assessed 4 times, T0 with high-flux dialyzers, T1 at 1 month, T2 at second month, and T3 at third month, by measuring pre- and post-HD samples of urea, Cr, β2-microglobilin (β2M), myoglobin, albumin, free light chains kappa (FLC-k), and free light chains lambda (FLC-λ). Results: The data showed a higher average removal rate for all the uremic toxins with Theranova® dialyzers for β2M, myoglobin, FLC-k, and FLC-λ (62.7, 56.9, 63.5, and 54.6%, respectively) during the 3 months. Albumin retention was observed and did not change between T0 and T3 (p = 0.379). Conclusion: Compared to high-flux membranes, MCO membranes show greater permeability for middle molecules in midterm report. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Antibiotic Consumption in Hospitalized Children at the University Clinic for Pediatric Diseases – Skopje(Scientific Foundation SPIROSKI, 2020-06-10) ;Pechijareva-Sadikarijo, Iskra; ; ; <jats:p>BACKGROUND: The misuse and overuse of antibiotics contribute to the development of antimicrobial residence. Official data in EU/ EEA in 2017 in the hospital sector suggested that the consumption is lowest in the Netherlands, with 1 DDD per 1,000 inhabitants/day in comparison with Finland, with 2.8 DDD/TID. AIM: The aim of this study was to analyze data on the scope and structure of the antibiotic prescription in pediatric patients at University Children’s Hospital for period of 3 months in 2018 and 2019. MATERIALS AND METHODS: The data for antibiotic consumption were obtained from a hospital pharmacy, which are ordinated to hospitalized patients. RESULTS: The total amount of utilized antibacterial drugs with ATC code J01 for first quarter in 2018 is 33.65 DDD/100BD in comparison to the first quarter of 2019 when it declined to 32.09 DDD/100BD. The most consummated antibiotics in the first trimester of both years were the group of cephalosporins, especially the 3rd- and 4th-generation parenteral cephalosporins with from 16.96 to 19.25 DDD/100BD in the evaluated period. Decrease of penicillin’s, carbapenems, macrolides and quinolones were confirmed in the analyzed period. The most commonly used drugs remain ceftriaxone – 13.49 DDD/100BD in 2018 and increased to 14.41 DDD/100BD in 2019, followed by amikacin 3.21 DDD/100BD in 2018 and increased to 3.50 DDD/100BD in 2019 but azithromycin consumption significantly declined from 1.97 DDD/100BD to 0.81 DDD/100BD administered orally. The third most commonly utilized antibiotic in first quarter of 2019 become meropenem, antimicrobial drug from the group of carbapenems with 2.71 DDD/100BD. CONCLUSION: The benefits of monitoring the antibiotic prescribed pattern are critical due to the fact that they provide adequate data on consumption of antibiotics and adherence to guidelines.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Comparison of Oxidative Stress Levels in Healthy Children and Children with Allergic Rhinitis(Walter de Gruyter GmbH, 2023-03-01); ; ; ; Background/aim: Allergic rhinitis (AR) is characterized by chronic inflammation of the nasal mucosa. Under the influence of exogenous factors - allergens, reactive oxygen species (ROS) are released during cellular metabolism. They induce a series of pathological changes in the mucosa. Oxidative stress is а result of an imbalance between the production of ROS and the ability to neutralize them. The aim of this study is to compare the levels of oxidative stress between healthy children and children with allergic rhinitis. Material and methods: A total number of 60 children were included (30 healthy children and 30 children with AR). The oxidative stress index was determined by using the FRAS 5 (Free Radical Analytical System) Bravo system. Demographic characteristics, medical history, children's living conditions and eating habits were obtained from the questionnaire. Anthropometric measurements and the absolute number of eosinophils in the peripheral smear were performed on each child. Results: This study showed high oxidative stress index and a significantly higher value of the absolute number of eosinophils in the peripheral smear in children with AR in comparison to healthy children (p<0.05). The group of children with AR had more atopic characteristics and was more exposed to passive smoking than healthy children. Conclusion: Compared to healthy children, children with AR have a high index of oxidative stress, despite of the very high mean value of the concentration of water-soluble antioxidants in serum (PAT test) in the group of children with AR. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Determination of Terpenoid Profile in Dry Cannabis Flowers and Extracts Obtained from Different Cannabis Varietes(Sciencedomain International, 2021-12-08) ;Serafimovska, Tijana ;Serafimovska, Marija Darkovska ;Mitevska, Marija ;Stefanovski, SashoKeskovski, Zlatko<jats:p>Aim: The aim of this study was to determine the terpenoid profile in dried cannabis flowers obtained from different varieties of cannabis plant and in cannabis extracts in order to investigate quantity of terpenes lost during extraction and purification process. Methods: GC/MS method for determination of terpenes was verified. The concentration of terpenes was determined in dry flowers as raw material and in decarboxylated and distillated cannabis extracts, using the same GC/MS analytical method. The extraction was performed using 96% ethanol as a solvent. Results: The obtained results indicate that dry cannabis flowers from different cannabis plant can be distinguished only by their terpenoid profile. The use of standardized cannabis-based extracts can be confirmed by determination of terpenoid profile. The purification process of the cannabis extracts removes terpenes. The percentage of major terpen beta-Myrcene decreased from 68% in dry flower to 15% in decarboxylated and, 1.9% in distillated cannabis oil after purification. The percentage of second major terpene alpha-Pinene decreased from 15% in dry flower to 5% in decarboxylated and, 0.7% in distillated cannabis oil after purification. Conclusion: Terpenes act synergistically with cannabinoids. Following the monograph for quality testing of cannabis extracts in the German Pharmacopoeia, the purification process is necessary to achieve a final concentration of cannabinoids (Tetrahydrocannabinol) of more than 95% in the final active pharmaceutical ingredient. The purification process removes terpenes that have proven synergistically pharmacological effects with cannabinoids.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Acute fulminant hepatatis in kidney transplant recipient after repeated sevoflurane anesthesia--a case report and literature review(Bentham Science Publishers Ltd., 2013-04) ;Masin-Spasovska, Jelka; ; ; Dohchev, SasoA liver dysfunction induced by halogenated volatile anaesthetics is considered as a significant diagnostic problem. The aim of our report was to describe the first case of lethal hepatic failure in a female patient undergoing kidney transplantation (KTx) from a living donor after repeated sevoflurane anaesthesia. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Does Cannabis Extract Obtained From Cannabis Flowers With Maximum Allowed Residual Level of Aflatoxins and Ochratoxin a Have an Impact on Human Safety and Health?(2021) ;Serafimovska, Tijana ;Stefanovski, Sasho ;Erler, Joachim ;Keskovski, ZlatkoStefkov, GjosheAim: The aim of this study was to investigate whether the cannabis extract obtained from cannabis flowers that contain the maximum allowed level of mycotoxins affects human safety and health. For that purpose, a novel liquid chromatography with tandem mass spectrometry (LC/MS/MS) method was developed and validated for the determination of aflatoxins and ochratoxin A (OchA) in cannabis extracts to demonstrate that this analytical method is suitable for the intended experimental design. Methods: Experimental design was done by adding maximum allowed concentration of aflatoxins (B1, B2, G1, G2) and OchA according to the European Pharmacopeia related to cannabis flowers. The concentration of aflatoxins and OchA was determined using the same LC/MS/MS analytical method in the starting material (dry flower) before preparing the spiked sample and after obtaining decarboxylated extract with ethanol 96%. Results: The results obtained indicate that aflatoxins and OchA, primarily added to the cannabis dried flowers, were also determined into the obtained final extract in amounts much higher (m/m) than in the starting plant material. Conclusion: With this experiment, we have shown that mycotoxins, especially aflatoxins, which are extremely toxic secondary metabolites, can reach critical values in cannabis extracts obtained from dry cannabis flowers with the maximum allowed quantity of mycotoxins. This can pose a great risk to consumers and their health especially to those with compromised immune systems. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Hairy Cell Leukemia Treatment: The Past and the Present–Where We Are Now?(Elsevier BV, 2019-09); ; ; - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Acute Graft Versus Host Disease in Hematopoietic Stem Cell Alotransplant Recipients(ScopeMed, 2011); ; ; ; The transplantation of hematopoietic stem cells (HSCT) is a therapeutic intervention where the hematopoietic stem cells and the cells originating from them are being removed and replaced by the normal stem cells of donor or the patient him/her-self. HSCT today represent standardized biological manipulation for treating malignant, genetic and autoimmune diseases. The application of allogeneic hematopoietic stem cell transplantation (HSCT) is limited by life-threatening complications such as severe or acute graft-versus-host disease (GVHD). Despite intensive prophylaxis with immunosuppressive agents, the incidence of GVHD occurs in 9-50% of patients undergoing transplant with an identical HLA sibling matched donor and 75% of patients undergoing unrelated HLA donors. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Utility of exhaled nitric oxide in pediatric practice-review of literature.(Macedonian Association of Anatomists and Morphologists, 2019); ; ; ; Popova, GoricaThe field of interest for measurement of exhaled nitric oxide (NO) and nasal NO is significantly evolving over the last 25 years, with over 1000 publications published in that area. Inflammation of the airways is a central process in asthma and other lung disorders, but the monitoring of the inflammation has not been included in the current recommendations. The exhaled air contains volatile media such as nitric monoxide, carbon monoxide, ethane, pentane and non-volatile substances in the liquid phase in the exhalation, as a condensate (hydrogen peroxide). It is increasingly confirmed that the measurement of exhaled mediators in general, and especially NO, is a new way to monitor certain aspects of asthma, COPD and interstitial lung disease, which cannot be estimated with other methods, like lung function. In asthma, exhaled NO is recommended to be used as a marker for diagnosis, for monitoring the response of anti-inflammatory drugs, confirming the safety of therapy and predicting asthma exacerbation. Measurements of FeNO are easily performed, they are reproducible and technically less expensive than the analysis of induced sputum. In symptomatic patients, high FeNO levels (> 50 ppb), refer to significant eosinophilia in the airways, which will most likely respond to treatment with ICS. The current data provides support for the diagnostic use of FeNO in children with symptoms of asthma. For patients with chronic and/or severe asthma, FeNO levels are useful for determining whether eosinophilic inflammation of the airways is active or not. Both high (> 50ppb) and low (<25 ppb) levels of FeNO can be used to for predicting the outcome in patients with a definitive history of asthma who are currently in remission and who have stopped treatment with ICS.
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