Yazar "Eren, Necmi" seçeneğine göre listele
Listeleniyor 1 - 18 / 18
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Acute renal infarction in Turkey: a review of 121 cases(Springer, 2018) Eren, Necmi; Kurultak, IlhanPurposeRenal infarction is a clinical condition which is caused by renal artery occlusion and leads to permanent renal parenchymal damage. In the literature, there are generally case reports on this subject, and few studies that include a large group of patients. Therefore, we aimed to present the data of a large group of patients who were diagnosed with acute renal infarction in our country in this retrospective study.MethodsThe data of patients who were diagnosed with acute renal infarction according to clinical and radiological findings in Turkey in the last 3years were examined. For this purpose, we contacted with more than 40 centers in 7 regions and obtained support from clinically responsible persons. Demographic data of patients, laboratory data at the time of diagnosis, tests performed for etiologic evaluation, given medications, and patients' clinical status during follow-up were obtained from databases and statistical analysis was performed.ResultsOne-hundred and twenty-one patients were included in the study. The mean age was 531.4 (19-91) years. Seventy-one (58.7%) patients were male, 18 (14.9%) had diabetes, 53 (43.8%) had hypertension, 36 (30%) had atrial fibrillation (AF), and 6 had a history of lupus+antiphospholipid syndrome (APS). Forty-five patients had right renal infarction, 50 patients had left renal infarction, and 26 (21.5%) patients had bilateral renal infarction. The examinations for the ethiologies revealed that, 36 patients had thromboemboli due to atrial fibrillation, 10 patients had genetic anomalies leading to thrombosis, 9 patients had trauma, 6 patients had lupus+APS, 2 patients had hematologic diseases, and 1 patient had a substance abuse problem. Fifty-seven (57%) patients had unknown. The mean follow-up period was 14 +/- 2months. The mean creatinine and glomerular filtration rate (GFR) values at 3months were found to be 1.65 +/- 0.16mg/dl and 62 +/- 3ml/min, respectively. The final mean creatinine and GFR values were found to be 1.69 +/- 0.16mg/dl and 62 +/- 3ml/min, respectively.Conclusions Our study is the second largest series published on renal infarction in the literature. More detailed studies are needed to determine the etiological causes of acute renal infarction occurring in patients.Öğe CHARACTERISTICS AND SURVIVAL DATA OF PATIENTS WITH PRIMARY FOCAL SEGMENTAL SEGMENTAL GLOMERULOSCLEROSIS: TSN-GOLDMULTI-CENTER STUDY(Oxford Univ Press, 2023) Dheir, Hamad; Cebeci, Egemen; Karadag, Serhat; Yildiz, Abdulmecit; Guller, Nurana; Altiparmak, Mehmet Riza; Eren, Necmi[Abstract Not Available]Öğe CHARACTERISTICS OF PRIMARY GLOMERULAR DISEASE PATIENTS WITH HEMATURIA IN TURKEY: THE DATA FROM TSN-GOLD WORKING GROUP(Oxford Univ Press, 2020) Sumnu, Abdullah; Turkmen, Kultigin; Cebeci, Egemen; Turkmen, Aydin; Eren, Necmi; Seyahi, Nurhan; Oruc, Aysegul[Abstract Not Available]Öğe Characteristics of primary glomerular diseases patients with hematuria in Turkey: the data from TSN-GOLD Working Group(Springer, 2021) Sumnu, Abdullah; Turkmen, Kultigin; Cebeci, Egemen; Turkmen, Aydin; Eren, Necmi; Seyahi, Nurhan; Oruc, AysegulPurpose Hematuria is one of the most common laboratory findings in nephrology practice. To date, there is no enough data regarding the clinical and histopathologic characteristics of primary glomerular disease (PGD) patients with hematuria in our country. Methods Data were obtained from national multicenter (47 centers) data entered into the Turkish Society of Nephrology Glomerular Diseases (TSN-GOLD) database between May 2009 and June 2019. The data of all PGD patients over the age of 16 years who were diagnosed with renal biopsy and had hematuria data were included in the study. Demographic characteristics, laboratory and biopsy findings were also recorded. Results Data of 3394 PGD patients were included in the study. While 1699 (50.1%) patients had hematuria, 1695 (49.9%) patients did not have hematuria. Patients with hematuria had statistically higher systolic blood pressure, serum blood urea nitrogen, creatinine, albumin, levels and urine pyuria. However, these patients had statistically lower age, body mass index, presence of hypertension and diabetes, eGFR, 24-h proteinuria, serum total, HDL and LDL cholesterol, and C3 levels when compared with patients without hematuria. Hematuria was present 609 of 1733 patients (35.8%) among the patients presenting with nephrotic syndrome, while it was presented in 1090 of 1661 (64.2%) patients in non-nephrotics (p < 0.001). Conclusion This is the first multicenter national report regarding the demographic and histopathologic data of PGD patients with or without hematuria. Hematuria, a feature of nephritic syndrome, was found at a higher than expected in the PGDs presenting with nephrotic syndrome in our national database.Öğe Clinical and pathologic features of primary membranous nephropathy in Turkey: a multicenter study by the Turkish Society of Nephrology Glomerular Diseases Working Group(Taylor & Francis Ltd, 2022) Yildiz, Abdulmecit; Ulu, Sena; Oruc, Aysegul; Ucar, Ali Riza; Ozturk, Savas; Alagoz, Selma; Eren, NecmiBackground We aimed to evaluate the features of primary membranous nephropathy (MNP) in Turkish people. Methods This is a retrospective analysis of patients with biopsy-proven primary MNP. We obtained the data collected between 2009 and 2019 in the primary glomerulonephritis registry of the Turkish Society of Nephrology Glomerular Diseases Study Group (TSN-GOLD). Patients with a secondary cause for MNP were excluded. Clinical, demographic, laboratory, and histopathological findings were analyzed. Results A total of 995 patients with primary MNP were included in the analyses. Males constituted the majority (58.8%). The mean age was 48.4 +/- 13.9 years. The most common presentation was the presence of nephrotic syndrome (81.7%) and sub nephrotic proteinuria (10.3%). Microscopic hematuria was detected in one-third of patients. The median estimated glomerular filtration rate (eGFR) was 100.6 mL/min/1.73 m(2) (IQR, 75.4-116.3), and median proteinuria was 6000 mg/d (IQR, 3656-9457). Serum C3 and C4 complement levels were decreased in 3.7 and 1.7% of patients, respectively. Twenty-four (2.4%) patients had glomerular crescents in their kidney biopsy samples. Basal membrane thickening was detected in 93.8% of cases under light microscopy. Mesangial proliferation and interstitial inflammation were evident in 32.8 and 55.9% of the patients, respectively. The most commonly detected depositions were IgG (93%), C3 complement (68.8%), and kappa and lambda immunoglobulin light chains (70%). Although renal functions were normal at presentation, vascular, interstitial, and glomerular findings were more prominent on biopsy in hypertensive patients. No significant effect of BMI on biopsy findings was observed. Conclusions Despite some atypical findings, the main features of primary MNP in Turkey were similar to the published literature. This is the largest MNP study to date conducted in Turkish people.Öğe Could mesangial C3 deposition be an independent prognostic marker in immunoglobulin A nephropathy?(Springer Heidelberg, 2023) Cetinkaya, Hakki; Gursu, Meltem; Yazici, Halil; Cebeci, Egemen; Eren, Necmi; Altiparmak, Mehmet Riza; Akcay, Omer FarukBackground: Immunoglobulin A nephropathy (IgAN) is a common primary glomerulonephropathy. There is evidence that mesangial C3 deposition plays a role in the development of the disease. The aim of this study was to examine the effect of C3 deposition on the prognosis of IgAN patients.Method: The study included 1135 patients with biopsy-confirmed IgAN from the database of the Turkish Nephrology Association Glomerular Diseases Working Group (TSN-GOLD). Patients were excluded from the study if they were aged < 18 or > 75 years or if C3 staining had not been performed in the immunofluorescent analysis. C3 deposition was defined as an immunofluorescence intensity of C3 >= 2 + within the mesangium. The primary endpoints were the development of end-stage renal disease, a 30% decrease in glomerular filtration rate compared to the basal value or an elevation in proteinuria to a nephrotic level (3.5 gr/day).Results: Mesangial C3 deposition was observed in 603 (53.1%) patients. No statistically significant difference was found at baseline between the groups with and without mesangial C3 deposition, as for age, sex, BMI, proteinuria level, or the presence of hypertension. In the follow-up period with a mean duration of 78 months, no significant difference was found between the two groups regarding the primary endpoints (p = 0.43). A significant correlation between C3 deposition and segmental glomerulosclerosis (S1) according to the Oxford MEST-C classification was found (p = 0.001).Conclusion: Although a correlation was observed between mesangial C3 deposition and the S1 MEST-C classification, mesangial C3 deposition was not a prognostic factor in IgAN.Öğe COULD MESANGIAL C3 DEPOSITION BE AN INDEPENDENT PROGNOSTIC MARKER IN IMMUNOGLOBULIN A NEPHROPATHY?(Oxford Univ Press, 2023) Cetinkaya, Hakki; Gursu, Meltem; Yazici, Halil; Cebeci, Egemen; Eren, Necmi; Altiparmak, Mehmet Riza; Akcay, Omer Faruk[Abstract Not Available]Öğe EPIDEMIOLOGICAL AND CLINICAL CHARACTERSTICS OF IGA NEPHROPATHY PATIENTS IN TURKEY: TSN-GOLD WORKING GROUP(Oxford Univ Press, 2020) Eren, Necmi; Gursu, Meltem; Cebeci, Egemen; Turkmen, Aydin; Yeter, Hasan Haci; Seyahi, Nurhan; Piskinpasa, Serhan Vahit[Abstract Not Available]Öğe Epidemiological features of primary glomerular disease in Turkey: a multicenter study by the Turkish Society of Nephrology Glomerular Diseases Working Group(Bmc, 2020) Turkmen, Aydin; Sumnu, Abdullah; Cebeci, Egemen; Yazici, Halil; Eren, Necmi; Seyahi, Nurhan; Dilek, KamilBackground The largest data on the epidemiology of primary glomerular diseases (PGDs) are obtained from the databases of countries or centers. Here, we present the extended results of the Primary Glomerular Diseases Study of the Turkish Society of Nephrology Glomerular Diseases (TSN-GOLD) Working Group. Methods Data of patients who underwent renal biopsy and received the diagnosis of PGD were recorded in the database prepared for the study. A total of 4399 patients from 47 centers were evaluated between May 2009 and May 2019. The data obtained at the time of kidney biopsy were analyzed. After the exclusion of patients without light microscopy and immunofluorescence microscopy findings, a total of 3875 patients were included in the study. Results The mean age was 41.5 +/- 14.9 years. 1690 patients were female (43.6%) and 2185 (56.3%) were male. Nephrotic syndrome was the most common biopsy indication (51.7%). This was followed by asymptomatic urinary abnormalities (18.3%) and nephritic syndrome (17.8%). The most common PGD was IgA nephropathy (25.7%) followed by membranous nephropathy (25.6%) and focal segmental glomerulosclerosis (21.9%). The mean total number of glomeruli per biopsy was 17 +/- 10. The mean baseline systolic blood pressure was 130 +/- 20 mmHg and diastolic blood pressure was 81 +/- 12 mmHg. The median proteinuria, serum creatinine, estimated GFR, and mean albumin values were 3300 (IQR: 1467-6307) mg/day, 1.0 (IQR: 0.7-1.6) mg/dL, 82.9 (IQR: 47.0-113.0) mL/min and 3.2 +/- 0.9 g/dL, respectively. Conclusions The distribution of PGDs in Turkey has become similar to that in other European countries. IgA nephropathy diagnosed via renal biopsy has become more prevalent compared to membranous nephropathy.Öğe IS THE SEVERITY OF GLOMERULAR IGG STAINING IN PATIENT WITH IGA NEPHROPATHY USEFUL FOR PREDICTING POOR RENAL PROGNOSIS? THE DATA FROM TSN-GOLD WORKING GROUP(Oxford Univ Press, 2020) Turgutalp, Kenan; Cebeci, Egemen; Turkmen, Aydin; Derici, Ulver; Seyahi, Nurhan; Eren, Necmi; Dede, Fatih[Abstract Not Available]Öğe THE LONGITUDINAL EVOLUTION OF COVID-19 OUTCOMES AMONG HEMODIALYSIS PATIENTS: A NATIONWIDE MULTICENTRE CONTROLLED STUDY(Oxford Univ Press, 2022) Ozturk, Savas; Turgutalp, Kenan; Arici, Mustafa; Gorgulu, Numan; Tonbul, Halil Zeki; Eren, Necmi; Gencer, Vedat[Abstract Not Available]Öğe The Longitudinal Evolution of Post-COVID-19 Outcomes Among Hemodialysis Patients in Turkey(Elsevier Science Inc, 2022) Ozturk, Savas; Turgutalp, Kenan; Arici, Mustafa; Gorgulu, Numan; Tonbul, Halil Zeki; Eren, Necmi; Gencer, VedatIntroduction: Hemodialysis (HD) patients have increased risk for short-term adverse outcomes of COVID-19. However, complications and survival at the post-COVID-19 period have not been published extensively.Methods: We conducted a national, multicenter observational study that included adult maintenance HD patients recovered from confirmed COVID-19. A control HD group without COVID-19 was selected from patients in the same center. We investigated the characteristics and outcomes in the follow-up of HD patients and compare them with the non-COVID-19 group.Results: A total of 1223 patients (635 patients in COVID-19 group, 588 patients in non-COVID-19 group) from 47 centers were included in the study. The patients' baseline and HD characteristics were almost similar. The 28th-day mortality and mortality between 28th day and 90th day were higher in the COVID-19 group than non-COVID-19 group (19 [3.0%] patients vs. none [0%]; 15 [2.4%] patients vs. 4 [0.7%] patients, respectively). The presence of respiratory symptoms, rehospitalization, need for home oxygen therapy, lower respiratory tract infection, and arteriovenous (AV) fistula thrombosis was significantly higher in the COVID-19 group in both the first 28 days and between 28 and 90 days. In the multivariable analysis, age (odds ratio [OR] [95% CI]: 1.029 [1.004-1.056]), group (COVID-19 group vs. non-COVID-19 group) (OR [95% CI]: 7.258 [2.538-20.751]), and vascular access type (tunneled catheter/AV fistula) (OR [95% CI]: 2.512 [1.249-5.051]) were found as independent parameters related to 90-day mortality.Conclusion: In the post-COVID-19 period, maintenance HD patients who have had COVID-19 have increased rehospitalization, respiratory problems, vascular access problems, and high mortality compared with the non-COVID-19 HD patients.Öğe MEMBRANOUS NEPHROPATHY IN TURKEY: TURKISH SOCIETY OF NEPHROLOGY GLOMERULER DISEASES (TSN-GOLD) DATABASE RESULTS(Oxford Univ Press, 2020) Yildiz, Abdulmecit; Ulu, Memnune Sena; Oruc, Aysegul; Ucar, Ali Riza; Ozturk, Savas; Alagoz, Selma; Eren, Necmi[Abstract Not Available]Öğe Pregnancy and its outcomes in hemodialysis patients in Turkey(Tubitak Scientific & Technological Research Council Turkey, 2022) Dheir, Hamad; Gungor, Ozkan; Ulu, Memnune Sena; Oguz, Ebru Gok; Eren, Necmi; Altunoren, Orcun; Tatar, ErhanBackground/aim: This study aimed to investigate pregnancy frequency and evaluate the factors affecting live births in hemodialysis (HD) patients. Materials and methods: Female HD patients whose pregnancy was retrospectively reported between January 1, 2014, and December 31, 2019. The duration of HD, primary disease, and the information on whether the pregnancy resulted in abortion, stillbirth, or live birth, whether the HD duration was prolonged after diagnosing the pregnancy and whether it accompanied preeclampsia were recorded. Results: In this study, we reached 9038 HD female patients' data in the study. A total of 235 pregnancies were detected in 145 patients. The mean age was 35.42 (35 +/- 7.4) years. The mean age at first gestation was 30.8 +/- 6.5 years. The average birth week was 32 (28 -36) weeks. A total of 53.8% (no = 78) of the patients had live birth, 51.7% (no = 70) had at least one abortion in the first 20 weeks, and 13.1% (no = 19) had at least one stillbirth after 20 weeks. The rate of patients' increased numbers of dialysis sessions during pregnancy was 71.7%. The abortion rate was 22.4% in those with increased HD sessions, whereas 79.3% in those not increased HD sessions (p < 0.001). Live birth frequency was 67.2% in the increased HD sessions group and 3.4% in those who did not differ in HD sessions (p < 0.001). Conclusion: For the first time, we reported pregnancy outcomes in HD female patients, covering all regions of Turkey. It has been observed that; increasing the number of HD sessions in dialysis patients will decrease fetal and maternal complications and increase live birth rates.Öğe THE PREVALENCE, CLINICAL AND PATHOLOGICAL CHARACTERISTICS OF PRIMARY FOCAL SEGMENTAL GLOMERULOSCLEROSIS IN TURKISH ADULTS: THE DATA FROM TSN-GOLD (TURKISH SOCIETY OF NEPHROLOGY GLOMERULAR DISEASES) WORKING GROUP(Oxford Univ Press, 2020) Kurultak, Ilhan; Gungor, Ozkan; Ozturk, Savas; Dirim, Ahmet Burak; Eren, Necmi; Yenigun, Ezgi; Dal, Elbis Ahbap[Abstract Not Available]Öğe The relationship between glomerular IgG staining and poor prognostic findings in patients with IgA nephropathy: the data from TSN-GOLD working group(Bmc, 2021) Turgutalp, Kenan; Cebeci, Egemen; Turkmen, Aydin; Derici, Ulver; Seyahi, Nurhan; Eren, Necmi; Dede, FatihBackground Galactose-deficient IgA1 (Gd-IgA1) has an increased tendency to form immunocomplexes with IgG in the serum, contributing to IgAN pathogenesis by accumulating in the glomerular mesangium. Several studies showed that glomerular IgG deposition in IgAN is an important cause of mesangial proliferation and glomerular damage. This study aims to determine the association of the positivity of IgG and the intensity of IgG staining with a poor renal prognosis. Methods A total of 943 IgAN patients were included in the study. Glomerular IgG staining negative and positive patients were compared using Oxford classification scores, histopathological evaluations, proteinuria, eGFR, albumin, blood pressures. IgG positive patients were classified as (+), (++), (+++) based on their staining intensity, and the association with the prognostic criteria was also evaluated. Results 81% (n = 764) of the patients were detected as IgG negative, while 19% (n = 179) were positive. Age, gender, body mass index, blood pressure, proteinuria, eGFR, uric acid values were similar in IgG positive and negative patients who underwent biopsy (p > 0.05). Intensity of glomerular IgG positivity was not found to be associated with diastolic and systolic blood pressure, urea, uric acid, age, eGFR, albumin, proteinuria (p > 0.05 for all, r = - 0.084, r = - 0.102, r = - 0.006, r = 0.062, r = 0.014, r = - 0.044, r = - 0.061, r = - 0.066, r = 0.150, respectively). There was no difference for histopathological findings between IgG (+), IgG (++), IgG (+++) groups (for all, p > 0.05). Conclusion Glomerular IgG negativity and positivity detected by routine IFM in IgAN patients is not associated with poor renal prognostic risk factors.Öğe TRENDS OF PRIMARY GLOMERULAR DISEASE IN TURKEY FROM 2009 TO 2017: A REGIONAL REGISTRY REPORT FROM TSN-GOLD WORKING GROUP(Oxford Univ Press, 2020) Gul, Cuma Bulent; Kucuk, Mehmet; Ozturk, Savas; Demir, Erol; Eren, Necmi; Sumnu, Abdullah; Seyahi, Nurhan[Abstract Not Available]Öğe Trends of primary glomerular disease in Turkey: TSN-GOLD registry report(Springer, 2022) Gul, Cuma Bulent; Kucuk, Mehmet; Ozturk, Savas; Demir, Erol; Eren, Necmi; Sumnu, Abdullah; Seyahi, NurhanBackground Although several renal biopsy registry reports have been published worldwide, there are no data on primary glomerular disease trends in Turkey. Methods Three thousand eight-hundred fifty-eight native kidney biopsy records were assessed in the Turkish Society of Nephrology Primary Glomerulopathy Working Group (TSN-GOLD) Registry. Secondary disease and transplant biopsies were not recorded in the registry. These records were divided into four periods, before 2009, 2009 to 2013, 2013-2017, and 2017-current. Results A total of 3858 patients (43.6% female, 6.8% elderly) were examined. Nephrotic syndrome was the most common biopsy indication in all periods (58.6%, 53%, 44.1%, 51.6%, respectively). In the whole cohort, IgA nephropathy (IgAN) (25.7%) was the most common PGN with male predominance (62.7%), and IgAN frequency steadily increased through the periods (x 2 = 198, p < 0.001). MGN was the most common nephropathy in the elderly (> 65 years), and there was no trend in this age group. An increasing trend was seen in the frequency of overweight patients (x 2 = 37, p < 0.0001). Although the biopsy rate performed with interventional radiology gradually increased, the mean glomeruli count in the samples did not change over the periods. Conclusions In Turkey, IgAN is the most common primary glomerulonephritis, and the frequency of this is increasing.
