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Öğe 2003-2011 Yılları arasında meram tıp fakültesi organ nakli merkezinde yapılan böbrek nakli olgularının sonuçları(2013) Türkmen, Kültigin; Erdur, Fatih Mehmet; Gaipov, Abduzhappar; Yeksan, Mehdi; Selçuk, Nedim Yılmaz; Türk, Süleyman; Erikoğlu, Mehmet; Çolak, Bayram; Tekin, Ahmet; Tonbul, Halil Zeki; Tavlı, ŞakirAMAÇ: Son dönem böbrek yetmezliği (SDBY) hastalarında en iyi tedavi şekli böbrek naklidir. Çalışmamızda, son 8 yılda merkezimizde kadavra ve canlıdan yapılan böbrek nakillerinin(BN) demografik verileri ile birlikte böbrek fonksiyonları ve posttransplant medikal komplikasyonları, hasta- graft sağkalımını araştırmayı hedefledik. GEREÇ ve YÖNTEMLER: Çalışmaya 40ı kadavradan, 26sı canlıdan BN yapılan 66 hasta (kadın/ erkek: 36/30) dahil edildi. Nakil sonrası nefroloji polikliniğine başvurularda yaş, cinsiyet, böbrek yetmezliği nedeni, diyaliz türü-süresi, nakil türü, aldıkları indüksiyon tedavileri, kullandığı idame immünsupresif tedaviler, akut rejeksiyon sayısı ve verilen tedaviler, nakil sonrası 1., 6., 12., 24. ve 60. aylardaki biyokimya-hemogram parametreleri ve medikal komplikasyonlar hasta dosyalarından retrospektif olarak elde edildi. BULGULAR: Alıcıların ortalama yaşı 4111,6 yıldı. Ortalama nakil sonrası süre 32,231,4 ay, kreatinin değerleri 1,40,9 mg/dl tespit edildi. En sık uygulanan immünsüpresif tedavi protokolü ko rtikosteroidtakrolimusmikofenolat mofetil/sodyumdu. Gecikmiş graft fonksiyonu, kronik allograft disfonksiyonu ve akut rejeksiyon oranları sırasıyla %27,3, %25,7 ve %13,6 idi. 1 ve 5 yıllık hasta sağkalımı canlıdan yapılan BNlerinde sırasıyla %100 ve %100, kadavradan yapılan BNlerinde ise %85 ve %85 olarak bulundu. 1 ve 5 yıllık graft sağkalımı canlıdan BN yapılanlarda sırasıyla %100 ve %100, kadavradan BN yapılanlarda ise %80 ve %80 olarak saptandı. En sık görülen medikal komplikasyonlar yeni gelişen diyabet ve dislipidemiydi. Erken ve geç dönemde en sık karşılaşılan enfeksiyon idrar yolu enfeksiyonuydu. SONUÇ: BN, hasta-graft sağkalımının yüksek olduğu bir renal replasman tedavi seçeneğidir. Bununla birlikte metabolik komplikasyonlar açısından yakın takip gereklidir.Öğe Co-existing proteinase 3-antineutrophil cytoplasmic antibody-associated vasculitis with immunoglobulin A nephropathy(Korean Assoc Internal Medicine, 2016) Kucuk, Adem; Solak, Yalcin; Gaipov, Abduzhappar; Bagcaci, Sinan; Esen, Hasan; Turk, Suleyman; Tunc, Recep[Abstract Not Availabe]Öğe Colchicine Toxicity in End-Stage Renal Disease Patients: A Case-Control Study(Lippincott Williams & Wilkins, 2014) Solak, Yalcin; Atalay, Huseyin; Biyik, Zeynep; Alibasic, Hayrudin; Gaipov, Abduzhappar; Guney, Figen; Kucuk, AdemColchicine has been used in a number of disorders. Because colchicine is partially excreted from the kidney, there is a need for dose reduction in case of renal functional impairment. There are no data with regards to safe dosing schedule of colchicine in hemodialysis patients. We aimed to evaluate adverse effects of colchicine use in a hemodialysis cohort. We screened hemodialysis patients who were using colchicine for any reason. All patients were interviewed regarding possible toxicities of colchicine use and were examined with a special focus on neuromuscular system. Creatine kinase and myoglobin were used to detect any subclinical muscle injury or rhabdomyolysis, respectively. Twenty-two maintenance hemodialysis patients who were on colchicine for more than 6 months and 20 control hemodialysis patients not using colchicine were included in the study. Four of 22 patients were using 0.5 mg/day, 4 patients were using 1.5 mg/day, and 14 patients were using 1 mg/day colchicine. Mean duration for colchicine use was 8.9 +/- 8.2 years. There was no difference between the groups in terms of myoneuropathic signs and symptoms and blood counts except for white blood cell count, which was significantly higher in patients on colchicine. Serum creatine kinase (56.3 +/- 39.5 and 52.1 +/- 36.1 for colchicine and control groups, respectively, P = 0.72) and myoglobin (191.4 +/- 108.8 and 214.6+/-83.5 for colchicine and control groups, respectively, P = 0.44) levels were not different between the groups. We conclude that in a small number of haemodialysis patients who were apparently tolerating colchicine, detailed assessment revealed no evidence of sublinical toxicity when compared with controls.Öğe Drug Dose Adjustment in Dialysis Patients Admitted in Clinics Other Than Internal Medicine(Lippincott Williams & Wilkins, 2016) Solak, Yalcin; Biyik, Zeynep; Gaipov, Abduzhappar; Kayrak, Mehmet; Ciray, Hilal; Cizmecioglu, Ahmet; Tonbul, Halil ZekiMany drugs that are administered during hospitalization are metabolized or excreted through kidneys, consequently require dosage adjustment. We aimed to investigate inappropriate prescription of drugs requiring renal dose adjustment (RDA) in various surgical and medical inpatient clinics. We retrospectively determined dialysis patients hospitalized between January 2007 and December 2010. Inpatient clinics, including cardiology, pulmonary medicine, neurology, infectious diseases (medical clinics) and cardiovascular surgery, orthopedics, general surgery, obstetrics and gynecology, and neurosurgery (surgical clinics), were screened via electronic database. Total and RDA medications were determined. RDA drugs correctly adjusted to creatinine clearance were labeled as RDA-A (appropriate), otherwise as RDA-I (inappropriate). Renal doses of RDA medications were based on the American College of Physicians Drug Prescribing in Renal Failure, fifth Edition. Two hundred seventeen hospitalization records of 172 dialysis patients (92 men and 80 women) were included in the analysis. Mean age of patients was 59.4 +/- 14.6 years, and the mean hospitalization duration was 8.5 +/- 7.8 days. In total, 247 (84.3%, percentage in drugs requiring dose adjustment) and 175 (46.2%) drugs have been inadequately dosed in surgical and medical clinics, respectively. The percentage of patients to whom at least 1 RDA-I drug was ordered was 92% and 91.4% for surgical and medical clinics, respectively (P > 0.05). Nephrology consultation numbers were 8 (7.1%) in surgical and 32 (30.4%) in medical clinics. The most common RDA-I drugs were aspirin and famotidine. A significant portion of RDA drugs was ordered inappropriately both in surgical and medical clinics. Nephrology consultation rate was very low. Measures to increase physician awareness are required to improve results.Öğe Glomerulonephritis associated with tuberculosis: A case report and literature review(Wiley, 2013) Solak, Yalcin; Gaipov, Abduzhappar; Anil, Melih; Atalay, Huseyin; Ozbek, Orhan; Turkmen, Kultigin; Polat, IlkerRapidly progressive glomerulonephritis caused mycobacterium tuberculosis is rare; however, three case have been reported to date. Crescentic glomerulonephritis is a life-threatening disease and together with the presence of tuberculous infection is associated with a poor outcome if treatment is inadequate and delayed. We describe the case of a 31-year-old female patient with nephrotic syndrome and progressive renal failure secondary to pulmonary tuberculosis. Renal biopsy showed crescent formation in 14 out of 27 glomeruli, and there was diffuse linear staining of immunoglobulin G deposits. Treatment included corticosteroids in combination with antituberculosis drugs for 2 months, and resulted in a significant improvement in renal function, the disappearance of proteinuria and pulmonary symptoms. We also present a review of the pertinent literature and discuss the pathophysiology of tuberculosis-related acute postinfectious glomerulonephritis. Copyright (C) 2012, Kaohsiung Medical University. Published by Elsevier Taiwan LLC. All rights reserved.Öğe Heparin-induced thrombocytopenia in a hemodialysis patient treated with fondaparinux: Nephrologists between two fires(Wiley-Blackwell, 2013) Solak, Yalcin; Demircioglu, Sinan; Polat, Ilker; Biyik, Zeynep; Gaipov, Abduzhappar; Acar, Kadir; Turk, SuleymanHeparin-induced thrombocytopenia (HIT) is caused by heparin exposure and presents with reduced platelet count. Patients undergoing hemodialysis (HD) treatment have increased risk of developing HIT due to prolonged exposure to unfractionated heparin or low-molecular weight heparin. We report a 79-year-old male patient with end-stage renal disease who developed type-II HIT during maintenance HD. Platelet count of the patient decreased gradually and antiplatelet factor IV antibody was found to be positive. The patient was treated with fondaparinux and continued heparin-free HD. Unfortunately, despite favorable initial response without any thrombotic episodes, the patient died due to severe sepsis complicated by gastrointestinal hemorrhage.Öğe IMPACT OF ON-PUMP CIRCULATION ON HEMOTOLOGIC PARAMETERS OF PATIENTS WITH ACUTE KIDNEY INJURY AFTER OPEN HEART SURGERY(Oxford Univ Press, 2015) Gaipov, Abduzhappar; Solak, Yalcin; Kilicaslan, Alper; Pektas, Fatih; Ucar, Ramazan; Dossov, Mukhit; Kayrak, Mehmet[Abstract Not Availabe]Öğe Is there any potential or additive effect of anemia on hepatorenal syndrome?(2016) Keskin, Muharrem; Bıyık, Murat; Ataseven, Hüseyin; Demir, Ali; Güngör, Gökhan; Akyıldız, Murat; Solak, Yalçın; Gaipov, Abduzhappar; Çifçi, Sami; Polat, HakkıBackground/Aims: Hepatorenal syndrome (HRS) is a severe complication of advanced cirrhosis and is characterized by renal dysfunction and poor survival rates. Although anemia is a non-rare condition in advanced liver cirrhosis, there is no publication regarding the potential or additive effects of anemia on HRS and renal dysfunction in patients with cirrhosis. We investigated whether severe anemia is a precipitant factor for HRS.Materials and Methods: In this prospective study, consecutive patients with cirrhosis with and without renal dysfunction were enrolled. A total of 29 patients with cirrhosis with HRS meeting the HRS diagnostic criteria (9 patients with type 1 HRS and 20 with type 2 HRS) and 37 patients with cirrhosis without HRS were included. The demographic features, laboratory data (particularly anemic parameters), and clinical scores of patients with and without HRS were evaluated.Results: Grades of ascites, Child-Turcotte-Pugh (CTP) scores, and Model of End Stage Liver Disease (MELD) scores were significantly higher in contrast to hemoglobin levels; hematocrit concentrations were significantly lower in patients with type 1 and 2 HRS than in those with non-HRS stable cirrhosis. There was a negative correlation between the hemoglobin-hematocrit and serum creatinine levels. In the logistic regression analysis, the hemoglobin levels and CTP and MELD scores were statistically significant for an onset of HRS.Conclusion: Anemia may contribute to HRS and deteriorated renal function in patients with HRS because anemic hypoxia can lead to microcirculatory renal ischemia in the kidneys and anemia can also activate sympathetic activity and hyperdynamic circulation in the pathogenesis of HRS.Öğe Neutrophil gelatinase-associated lipocalin in prediction of mortality in patients with hepatorenal syndrome: a prospective observational study(Wiley, 2014) Gungor, Gokhan; Ataseven, Huseyin; Demir, Ali; Solak, Yalcin; Gaipov, Abduzhappar; Biyik, Murat; Ozturk, BahadirBackground & AimsHepatorenal syndrome (HRS) is a severe complication of cirrhosis which is characterized by renal dysfunction and associated with poor survival. Neutrophil gelatinase-associated lipocalin (NGAL) is a troponin-like biomarker for human acute kidney injury. We aimed to investigate levels of plasma and urine NGAL in HRS and predictive ability of these markers for all-cause mortality, in HRS, stable cirrhosis and control subjects. MethodsA total of 64 patients with cirrhosis (8 patients with type 1 HRS, 22 with type 2 HRS, and 34 without HRS) and 23 control subjects were included in the study. Blood and urine samples were measured with Human NGAL sandwich ELISA. Patients were followed up prospectively. ResultsPatients with type 1 and type 2 HRS had significantly higher plasma and urine NGAL levels compared with stable cirrhosis and control subjects. Cox regression analysis showed that plasma NGAL and MELD-Na scores were independent predictors of mortality. ROC-curve analysis showed that the plot of the plasma NGAL, urine NGAL, MELD-Na and Child-Turcot-Pugh score could predict all-cause mortality in cirrhotic patients' area under the curve (AUC 0.819, 0.686, 0.807 and 0.795 respectively). ConclusionsNGAL could predict mortality in patients with HRS independent of other commonly used risk factors.Öğe Plasma BNP, a useful marker of fluid overload in hospitalized hemodialysis patients(Wiley-Blackwell, 2012) Solak, Yalcin; Gaipov, Abduzhappar[Abstract Not Availabe]Öğe Predictive Value of Atrial Electromechanical Delay on Long-Term Cardiovascular Outcomes in Hemodialysis Patients(Karger, 2015) Turkmen, Kultigin; Demirtas, Event; Topal, Ergun; Gaipov, Abduzhappar; Kocyigit, Ismail; Orscelik, Ozcan; Guney, IbrahimBackground: Atrial electromechanical delay (AEMD) times were considered independent predictors of cardiovascular morbidity among the general population. We aimed at evaluating AEMD times and other risk factors associated with 2-year combined cardiovascular (CV) events in HD patients. Material and Methods: Sixty hemodialysis (HD) and 44 healthy individuals were enrolled in this prospective study. Echocardiography was performed before the mid-week dialysis session for HD patients. Data were expressed as mean SD. Spearman test was used to assess linear associations. Survival was examined with the Kaplan-Meier method. Multivariate Cox regression analysis was used to determine the predictors of combined CV events in this cohort. Results: At the beginning of the study, left intra-atrial-AEMD times were significantly longer in HD patients compared to the left intra-atrial-AEMD times in healthy individuals. After 24 months, 41 patients were still on HD treatment and 19 (31.6%) had died. Serum triglyceride, total cholesterol and albumin were found to be higher and C-reactive protein (CRP) levels, left intra-atrial EMD time (LIAT) and interatrial EMD times were found to be lower in survived HD patients. With the cut-off median values of 3.5 g/dl for albumin, 0.87 mg/dl for CRP, 157 mg/dl for total cholesterol and 151 mg/dl for triglyceride, the Kaplan-Meier curves demonstrated significant differences in terms of all-cause mortality. We also demonstrated the Kaplan-Meier survival curves of HD patients according to tertile values of LIAT. Cox regression analysis revealed that increased CRP and higher LIAT were found to be independent predictors of combined CV events. Conclusions: Increased LIAT and inflammation were found to be closely associated with 2 years combined CV events and all-cause mortality in HD patients. (C) 2015 S. Karger AG, BaselÖğe The Predictive Value of Platelet/Lymphocyte Ratio in Hemodialysis Patients With Erythropoietin Resistance(Wiley-Blackwell, 2016) Taymez, Dilek Guven; Ucar, Esma; Turkmen, Kultigin; Ucar, Ramazan; Afsar, Baris; Gaipov, Abduzhappar; Turk, SuleymanThe most important cause of anemia in CKD is relative deficiency of erythropoietin (EPO) secretion from the diseased kidney and EPO therapy has become the standard treatment for anemia of CKD. However, some patients do not respond well to erythropoiesis stimulating agent (ESA), so-called ESA resistance. One of the most important causes of ESA resistance is chronic inflammation in hemodialysis (HD) patients. ESA hyporesponsiveness index (EHRI), calculated as the weekly dose of EPO divided by kilograms of body weight divided by the hemoglobin level, and has been considered useful to assess the EPO resistance. Neutrophil/lymphocyte (NLR) ratio and platelet/lymphocyte ratio (PLR) were also found to be associated with inflammation in HD patients. However, the relationship between NLR, PLR and EHRI has not been investigated before. HD patients underwent medical history taking, physical examination, calculation of dialysis adequacy and biochemical analysis and calculation of EHRI. Logarithmically converted EHRI (logEHRI) was correlated only with hemoglobin (r -0.381, P< 0.0001) and PLR (r= 0.227, P=0.021) but not with NLR. Comparison of PLR among 25th, 50th and 75th percentile of EHRI showed that PLR levels increased going from the 25th to 75(th) percentile (P=0.032). Posthoc analysis revealed that 25-75th percentile (P=0.014) and 50-75th percentile (P=0.033) were different with respect to PLR. In linear regression analysis, PLR (standardized = 0.296, confidence interval: 0.000-0.001, P=0.003) was independently associated with logEHRI. We found that PLR was independently associated with EHRI in HD patients. PLR, which is quite a simple and cheap method, may guide clinicians for detecting EPO resistance.Öğe Pregabalin versus gabapentin in the treatment of neuropathic pruritus in maintenance haemodialysis patients: A prospective, crossover study(Wiley, 2012) Solak, Yalcin; Biyik, Zeynep; Atalay, Huseyin; Gaipov, Abduzhappar; Guney, Figen; Turk, Suleyman; Covic, AdrianAim: Pruritus is common in dialysis patients. Peripheral neuropathy is also prevalent in this patient population. However, the role of neuropathy in the genesis of uraemic itch has not been adequately studied to date. Therefore, we aimed to investigate the effects of gabapentin and pregabalin on uraemic pruritus along with neuropathic pain in patients receiving haemodialysis. Methods: This is a 14 week long randomized, prospective, cross-over trial. Haemodialysis patients with established neuropathy and/or neuropathic pain were included. Fifty patients were randomly assigned to gabapentin 300 mg after each haemodialysis session and pregabalin 75 mg daily. After 6 weeks of treatment, cross-over was performed and patients received the other drug for another 6 weeks. Short Form of McGill Pain Questionnaire and Visual Analogue Scale were used to evaluate pain and pruritus, respectively. At each week's visit, patients were interrogated in terms of adverse effects of study drugs. Baseline laboratory data and demographic characteristics were recorded from patient charts. Results: Forty (12 males, 28 females) out of 50 patients completed the study. Mean age was 58.2 +/- 13.7. Overall, 29 out of 40 patients (72.5%) had pruritus symptoms at baseline evaluation. Fifteen patients (37.5%) were diabetic. Thirty-one out of 40 patients (77.5%) had electromyography (EMG)-proven peripheral neuropathy. Twenty three patients (57.5%) had both EMG-proven neuropathy and pruritus. Gabapentin and pregabalin improved both neuropathic pain and pruritus significantly. There was no difference between the study drugs in terms of efficacy against pain and pruritus. Conclusion: Treatment of neuropathic pain with either pregabalin or gabapentin effectively ameliorates uraemic itch.Öğe The Relationship between Oxidative Stress, Inflammation, and Atherosclerosis in Renal Transplant and End-Stage Renal Disease Patients(Informa Healthcare, 2012) Turkmen, Kultigin; Tonbul, Halil Zeki; Toker, Aysun; Gaipov, Abduzhappar; Erdur, Fatih Mehmet; Cicekler, Humeyra; Anil, MelihObjectives: Cardiovascular risk is increased in the early stages of chronic kidney disease (CKD) and is also found to be ongoing in renal transplant (Rtx) patients. As a sign of atherosclerosis, increased carotid intima-media thickness (CIMT) has been widely accepted as a strong predictor of cardiovascular disease (CVD) and mortality in the end-stage renal disease (ESRD) patients. Ischemia-modified albumin (IMA), pentraxin-3 (PTX-3), and neutrophil-to-lymphocyte ratio (NLR) were introduced as oxidative stress and inflammatory biomarkers in ESRD. The role of Rtx in terms of atherogenesis, oxidative stress, and inflammation is still unclear. We aimed to investigate the relationship between IMA, PTX-3, NLR, and CIMT in Rtx patients without overt CVD and to compare these results with those obtained from healthy subjects and ESRD patients receiving hemodialysis (HD) and peritoneal dialysis (PD). Design and methods: Cross-sectional analysis in which CIMT measurements, NLR, and serum PTX-3 and IMA levels were assessed in 18 Rtx patients (10 females; mean age: 40.0 +/- 13.3 years), 16 PD patients (7 females; 40.2 +/- 12.9 years), 14 HD patients (8 females; 46.6 +/- 10.7 years), and 19 healthy subjects (9 females; 36.9 +/- 8.9 years). Results: IMA, PTX-3, and high-sensitive C-reactive protein (hs-CRP) levels, NLR, and CIMT of Rtx patients were found to be significantly higher compared with healthy subjects (p = 0.04, p < 0.0001, p < 0.005, p = 0.005, and p = 0.005, respectively). IMA level was positively correlated with hs-CRP and PTX-3 levels, NLR, and CIMT when all participants were included (r = 0.338, p = 0.005; r 0.485, p < 0.0001; r = 0.304, p = 0.013; and r = 0.499, p < 0.0001, respectively). Conclusion: There has been ongoing inflammation, oxidative stress, and atherosclerosis in Rtx patients.Öğe Relationship between Plasma Pentraxin-3, Neutrophil-to-Lymphocyte Ratio, and Atherosclerosis in Renal Transplant Patients(Karger, 2012) Turkmen, Kultigin; Erdur, Fatih Mehmet; Guney, Ibrahim; Ozbiner, Huseyin; Toker, Aysun; Gaipov, Abduzhappar; Ozbek, OrhanBackground/Aims: Atherosclerosis and inflammation are the most important risk factors in the pathogenesis of cardiovascular diseases (CVD) in patients with end-stage renal disease (ESRD). Pentraxin-3 (PTX-3) was shown to predict inflammation and atherosclerosis in ESRD patients. However, the role of renal transplantation (Rtx) in terms of atherogenesis is still unclear. We aimed to investigate the relationship between PTX-3, neutrophil-to-lymphocyte ratio (NLR), and carotid intima-media thickness (CIMT) in Rtx patients and healthy controls. Methods: This was a cross-sectional study involving 29 Rtx patients (12 females, 40.1 +/- 11.9 years) without overt CVD and 19 healthy subjects (9 females, 36.9 +/- 8.9 years), testing the relationship between CIMT, assessed by ultrasonography, and selected biomarkers. Results: CIMT, PTX-3, and high-sensitivity C-reactive protein (hs-CRP) levels of Rtx patients were found to be significantly higher compared to healthy subjects. CIMT was positively correlated with age, creatinine, uric acid, triglyceride, PTX-3, hs-CRP, and NLR, and negatively correlated with estimated glomerular filtration rate in all participants. In Rtx patients, CIMT was positively correlated with age, BMI, serum phosphorus, low-density lipoprotein, and hs-CRP. The multivariate analysis revealed that hs-CRP was found to be an independent variable of CIMT in Rtx patients. Conclusion: Our data showed that inflammation and atherosclerosis persist in Rtx patients. Serum hs-CRP might be a useful marker to assess these parameters in this population. Copyright (C) 2012 S. Karger AG, BaselÖğe Renal artery embolization in severe nephrotic syndrome(Wiley-Blackwell, 2016) Solak, Yalcin; Koc, Osman; Ucar, Ramazan; Ozbek, Orhan; Ergenc, Hasan; Gaipov, Abduzhappar; Turk, SuleymanIntroduction Severe nephrotic syndrome is associated with increased morbidity and mortality. Renal artery embolization (RAE) has been used in a number of renal diseases such as renal tumors, arteriovenous fistulas etc. However, data regarding benefits of RAE in patients with symptomatic severe proteinuria is limited. We decided to evaluate role of RAE in the setting of severe symptomatic nephrotic syndrome. Methods Eight patients who had undergone transcatheter renal artery embolization with polyvinyl alcohol (PVA) were included. Clinico-demographic characteristics as well as baseline laboratory data including level of proteinuria, serum albumin, C-reactive protein and LDL cholesterol levels were recorded for each patient. After RAE, outpatient clinic control laboratory values were also assessed. Findings All patients except one underwent bilateral RAE (four simultaneous or three sequential). Two patients experienced postembolization syndrome characterized by flank pain, fever, and leukocytosis, which was self-limited and responded to analgesics in all patients. There was no technical complications associated with RAE procedure. All patients became anuric except one. Serum albumin levels increased and serum LDL-cholesterol levels decreased considerably in treated patients. Discussion Renal artery embolization with the purpose of amelioration in nephrotic syndrome complications was effective and free of major technical complications in our patients.Öğe Renal Transplant Results of the Organ Transplant Center of Meram Medical School Between 2003-2011(Turk Nefroloji Diyaliz Transplantasyon Dergisi, 2013) Turkmen, Kultigin; Fatih, M. Ehmet Erdu R.; Erikoglu, Mehmet; Gaipov, Abduzhappar; Colak, Bayram; Tekin, Ahmet; Yeksan, MehdiBJECTIVE: Renal transplantation (RTx) is the best therapeutic modality for end-stage renal disease patients. We report 8 years single-centre experience on cadaveric and living donor RTx in terms of demographic features along with graft functions, posttransplant medical complications, patients-graft survivals. MATERIAL and METHODS: We enrolled 66 RTx (female/male: 36/30) patients including 40 cadaveric and 26 living donors. At admission age, gender, causes of renal failure, dialysis typeduration, type of RTx, induction and maintenance immunosuppressive modalities, rejection episodes, biochemistry-hemogram parameters at 1, 6, 12, 24 and 60 months after transplantation and medical complications were obtained from the medical records. RESULTS: Mean recipient age was 41 +/- 11.6 years. Mean transplant duration was 32.2 +/- 31.4 months, and the mean creatinine values was 1.4 +/- 0.9 mg/dl. The most commonly used immunosuppressive protocol was corticosteroid+tacrolimus+mycophenolate mofetil. Delayed graft function, chronic allograft nephropathy and acute rejection were observed in 27.3%, 25.7% and 13.6% of patients, respectively. 1-and 5-year patient survival rates were 100% and 100% for living donor patients and 85% and 85% for cadaveric patients, respectively. 1- and 5-year graft survival rates were 100% and 100% for living donor RTx patients, and 80% and 80% for cadaveric RTx patients, respectively. The most common medical complications were new onset diabetes mellitus and dyslipidemia. The most common early and late infection was urinary tract infection. CONCLUSION: RTx is the best renal replacement therapy in terms of patient-graft survival. However, patients should be closely moniterized for metabolic complications.Öğe Serum uric acid may predict development of progressive acute kidney injury after open heart surgery(Taylor & Francis Ltd, 2015) Gaipov, Abduzhappar; Solak, Yalcin; Turkmen, Kultigin; Toker, Aysun; Baysal, Ahmet Nihat; Cicekler, Humeyra; Biyik, ZeynepObjectives: Acute kidney injury (AKI) is a common complication of cardiac surgery developing in 25-35% cases. Recently, neutrophil gelatinase-associated lipocalin (NGAL) was shown to predict AKI development earlier than serum creatinine. Some studies demonstrated the predictive role of post-operative serum uric acid (SUA) as an early marker of AKI. We aimed to study the role of serum and urine NGAL as well as SUA to predict progression of AKI. Design and methods: This is a prospective observational study of patients undergoing cardiac surgery. Blood and urine samples for measurement of uric acid, serum and urine NGAL levels were collected prior to cardiac surgery (0 h), and in the time course at 2nd and 24th hours after surgery. Patients who developed AKI were divided into two subgroups as progressing and non-progressing AKI. Results: Sixty patients (42 males, 18 females) were included. After cardiac surgery, 40 patients developed AKI, 20 of whom non-progressing AKI, and 20 progressing AKI. All of the markers significantly increased in AKI patients. A receiver operator characteristics (ROC) curve analysis showed higher predictive ability of SUA for progressing AKI compared with serum and urine NGAL. When compared markers obtained at the second hour after surgery, UA had significantly large AUC than NGAL to predict AKI developed at 24 and 48 h, particularly in patients, who require renal replacement therapy (RRT). Conclusion: Uric acid seems to predict the progression of AKI and RRT requirement in patients underwent cardiac surgery better than NGAL.Öğe Soluble TWEAK independently predicts atherosclerosis in renal transplant patients(Biomed Central Ltd, 2013) Turkmen, Kultigin; Tonbul, Halil Zeki; Erdur, Fatih Mehmet; Toker, Aysun; Biyik, Zeynep; Ozbiner, Huseyin; Gaipov, AbduzhapparBackground: Cardiovascular risk is increased in the early stages of chronic kidney disease (CKD) and also found to be ongoing in renal transplant (Rtx) patients. As a sign of atherosclerosis, increased carotid intima-media thickness (CIMT) has been widely accepted as a strong predictor of cardiovascular disease (CVD) and mortality in CKD patients. A novel markers, soluble tumor necrosis factor-like weak inducer of apoptosis (sTWEAK) and neutrophil-to-lymphocyte ratio (NLR) were introduced as potential markers in inflammatory disorders including CKD. The role of Rtx in terms of atherogenesis is still unclear. We aimed to investigate the relationship between sTWEAK, NLR and CIMT in Rtx patients without overt CVD and to compare these results with those obtained from healthy subjects. Methods: Cross-sectional analysis in which CIMT measurements, NLR and serum TWEAK levels were assessed in 70 Rtx patients (29 females; mean age, 40.6 +/- 12.4 years) and 25 healthy subjects (13 females, mean age; 37.4 +/- 8.8 years). Results: sTWEAK levels were significantly decreased (p=0.01) and hs-CRP, NLR and CIMT levels of Rtx patients were significantly increased compared to healthy subjects (p<0.0001, p=0.001, p<0.0001, respectively). sTWEAK was also found to be decreased when eGFR was decreased (p=0.04 between all groups). CIMT was positively correlated with sTWEAK and NLR in Rtx patients (r=0.81, p<0.0001 and r=0.33, p=0.006, respectively). sTWEAK was also positively correlated with NLR (r=0.37, p=0.002). In the multivariate analysis only sTWEAK was found to be an independent variable of increased CIMT. Conclusion: sTWEAK might have a role in the pathogenesis of ongoing atherosclerosis in Rtx patients.Öğe Splenic artery embolization with Ankaferd blood stopper in a sheep model(2016) Koç, Osman; Acar, Kadir; Orhan, Özbek; Güler, İbrahim; Sarıtaş, Kadir; Erdem, Tuba Berra; Toy, Hatice; Gaipov, Abduzhappar; Haznedaroğlu, İbrahim C.PURPOSE Splenic artery embolization is a minimally invasive therapeutic procedure utilized in a number of disorders. Ankaferd blood stopper (ABS) is a novel hemostatic agent with a new mechanism of action independent of clotting factors. We aimed to investigate the safety and efficiency of ABS for splenic artery embolization in a sheep model. METHODS Seven adult female sheep were included in the study. Selective celiac angiography was performed using a 5F diagnostic catheter and then a 2.7F hydrophilic coating microcatheter was advanced coaxially to the distal part of the main splenic artery. Under fluoroscopic guidance, 6 mL mixture composed of half-and-half ABS and contrast agent was slowly injected. Fluoroscopy was used to observe the deceleration and stagnation of the flow. Control celiac angiograms were obtained immediately after the embolization. After the procedure, the animals were observed for one day and then sacrificed with intravenous sodium thiopental. RESULTS Technical success rate was 100%. None of the animals died or experienced a major systemic adverse event during the procedure. All of the spleens appeared dark on macroscopic examination due to excessive thrombosis. Microscopically, the majority of the splenic sinusoids (90%-95%) were necrotic. CONCLUSION In our study, splenic artery embolization by ABS was found to be safe and effective in the shortterm. Further studies are needed to better understand the embolizing potential of this novel hemostatic agent.
