MCBÜ Açıkerişim Sistemi :: Browsing by Author "Akman, S"

Browsing by Author "Akman, S"

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Pediatric kidney care experience after the 2023 Türkiye earthquake
Bakkaloglu, SA; Delibas, A; Döven, SS; Taner, S; Yavuz, S; Erfidan, G; Vatansever, ED; Aynaci, F; Yílmaz, K; Tasdemir, M; Akaci, O; Akinci, N; Güven, S; Çiçek, N; Dursun, I; Kelesoglu, E; Sancaktar, M; Alaygut, D; Saygili, S; Yavascan, Ö; Yilmaz, A; Gülleroglu, K; Ertan, P; Demir, BK; Poyrazoglu, H; Pinarbasi, S; Gençler, A; Bastug, F; Günay, N; Çelegen, K; Noyan, A; Parmaksiz, G; Avci, B; Çayci, FS; Bayrakçi, U; Özlü, SG; Aksoy, ÖY; Yel, S; Inal, GA; Köse, S; Bayazit, AK; Atmis, B; Saribas, E; Çagli, Ç; Tabel, Y; Elmas, AT; Selçuk, SZ; Kiliç, BD; Kara, MA; Büyükçelik, M; Balat, A; Tiryaki, BD; Erdogdu, B; Aksu, B; Mahmudova, G; Dursun, H; Candan, C; Göknar, N; Mutlubas, F; Çamlar, SA; Basaran, C; Akbulut, BB; Düzova, A; Gülhan, B; Oruç, Ç; Peru, H; Alpay, H; Türkkan, ÖN; Gülmez, R; Çelakil, M; Dogan, K; Bilge, I; Pehlivanoglu, C; Büyükkaragöz, B; Leventoglu, E; Alpman, N; Zeybek, C; Tülpar, S; Gülsan, RYÇ; Kara, A; Gürgöze, MK; Önder, ENA; Atikel, YÖ; Pul, S; Sönmez, F; Yildiz, G; Akman, S; Elmaci, M; Küçük, N; Yüksel, S; Kavaz, A; Nalçacioglu, H; Alparslan, C; Dinçel, N; Elhan, AH; Sever, L
Background. Two earthquakes on 6 February 2023 destroyed 10 cities in Turkiye. We report our experience with pediatric victims during these catastrophes, with a focus on crush syndrome related-acute kidney injury (Crush-AKI) and death. Method. Web-based software was prepared. Patient demographics, time under rubble (TUR), admission laboratory data, dialysis, and kidney and overall outcomes were recorded. Results. A total of 903 injured children (median age 11.62 years) were evaluated. Mean TUR was 13 h (interquartile range 32.5, max 240 h). Thirty-one of 32 patients with a TUR of >120 h survived. The patient who was rescued after 10 days survived. Two-thirds of the patients were given 50 mEq/L sodium bicarbonate in 0.45% sodium chloride solution on admission day. Fifty-eight percent of patients were given intravenous fluid (IVF) at a volume of 2000-3000 mL/m(2) body surface area (BSA), 40% at 3000-4000 mL/m(2) BSA and only 2% at >4000 mL/m(2) BSA. A total of 425 patients had surgeries, and 48 suffered from major bleeding. Amputations were recorded in 96 patients. Eighty-two and 66 patients required ventilator and inotropic support, respectively. Crush-AKI developed in 314 patients (36% of all patients). In all, 189 patients were dialyzed. Age >15 years, creatine phosphokinase (CK) >= 20 950 U/L, TUR >= 10 h and the first-day IVF volume <3000-4000 mL/m2 BSA were associated with Crush-AKI development. Twenty-two deaths were recorded, 20 of 22 occurring in patients with Crush-AKI and within the first 4 days of admission. All patients admitted after 7 days survived. Conclusions. These are the most extensive pediatric kidney disaster data obtained after an earthquake. Serum CK level was significantly associated with Crush-AKI at the levels of >20 950 U/L, but not with death. Adolescent age and initial IVF of less than 3000-4000 mL/m(2) BSA were also associated with Crush-AKI. Given that mildly injured victims can survive longer periods in the disaster field, we suggest uninterrupted rescue activity for at least 10 days.
Reno-vascular hypertension in childhood: a nationwide survey
Bayazit, AK; Yalcinkaya, F; Cakar, N; Duzova, A; Bircan, Z; Bakkaloglu, A; Canpolat, N; Kara, N; Sirin, A; Ekim, M; Oner, A; Akman, S; Mir, S; Baskin, E; Poyrazoglu, HM; Noyan, A; Akil, I; Bakkaloglu, S; Soylu, A
Renovascular disease accounts for 8-10% of all cases of paediatric hypertension, whereas, in adults, its incidence is approximately 1%. The Turkish Paediatric Hypertension Group aimed to create the first registry database for childhood renovascular hypertension in Turkey. Twenty of the 28 paediatric nephrology centres in Turkey responded to the survey and reported 45 patients (27 girls, 18 boys) with renovascular hypertension between 1990 and 2005. The age at presentation ranged from 20 days to 17 years. The mean blood pressure at the diagnosis was 169/110 mmHg. Chief complaints of symptomatic patients were headache (38%), seizure (18%), epistaxis (4%), growth retardation (4%), cognitive dysfunction (4%), polyuria (2%), palpitation (2%), and hemiplegia (2%). Renovascular hypertension was found incidentally in 11 children. The diagnosis of renovascular hypertension was established with conventional angiography in 39 patients, MR angiography in three, CT angiography in two, and captopril diethylene triamine penta-acetic acid (DTPA) scintigraphy in one patient. Twenty-one children had bilateral renal artery stenosis and 24 had unilateral renal artery stenosis. Of these, 14 (31%) had fibromuscular dysplasia; 12 (27%) Takayasu's arteritis; six (13%) neurofibromatosis; two (5%) Williams syndrome; one (2%) Kawasaki disease; one (2%) mid-aortic syndrome; one (2%) extrinsic compression to the renal artery, and eight (18%) unspecified bilateral renal artery stenosis. Hypertension was controlled with antihypertensive drugs in 17 patients. Percutaneous transluminal angioplasty (PTRA) or surgery had to be performed in 28 patients: PTRA in 16 patients, PTRA + surgery in one patient and surgery in 11 patients (four nephrectomies). The importance of vasculitic disease, especially Takayasu's arteritis, should not be underestimated in children with renovascular hypertension.
A nationwide retrospective study in Turkish children with nephrocalcinosis
Döven, SS; Tülpar, S; Bastug, F; Yildirim, ZNY; Yilmaz, EK; Çiçek, N; Küçük, N; Çomak, E; Yazicioglu, B; Nalcacioglu, H; Delibas, A; Uysal, B; Agbas, A; Gemici, A; Günay, N; Ertan, P; Biyikli, N; Hacihamdioglu, DO; Elmaci, AM; Atikel, YO; Delebe, EÖÇ; Sever, FL; Gökçe, I; Öner, N; Akman, S; Aksu, B; Atmis, B; Yel, S; Yilmaz, A; Çelik, B; Dursun, I; Alpay, H
Background/aim: Nephrocalcinosis (NC) is defined as calcium deposition in the kidney parenchyma and tubules. This study aims to determine the etiology, risk factors, and follow-up results of patients with NC in Turkey. Materials and methods: Patients diagnosed with NC in the pediatric nephrology Department Units of 19 centers from all geographical regions of Turkey over a 10-year period (2010-2019) were included in the study. The medical records from the centers were reviewed and demographic data, admission complaints, medical history, systemic and genetic disorders, risk factors for NC, treatment details, and presence of NC after one-year follow-up, were recorded retrospectively. Results: The study sample included 195 patients (88 females, 107 males). The mean age at diagnosis was 39.44 +/- 47.25 (0.5-208) months; 82/190 patients (43.2%) were diagnosed incidentally; 46/195 patients (23.6%) had an underlying disease; idiopathic hypercalciuria was detected in 75/195 (38.4%) patients. The most common systemic diseases were distal renal tubular acidosis in 11/46 patients (23.9%), primary hyperoxaluria in 9/46 patients (19.6%) and Bartter syndrome in 7/46 patients (15.3%). After one year of follow-up, NC resolved in 56/159 patients (35.2%) and they all did not have an underlying systemic disease. Conclusion: The most common presentation of NC was incidental. Distal renal tubular acidosis and primary hyperoxaluria were the main systemic diseases leading to NC, while hypercalciuria was the most common metabolic risk factor. Nephrocalcinosis was found to remain in most of the patients at a one-year follow-up. It may resolve particularly in patients with no underlying systemic disease.
Renovascular hypertension in childhood: A nation-wide survey
Bayazit, AK; Yalcinkaya, F; Cakar, N; Duzova, A; Bircan, Z; Aslan, S; Bakkaloglu, A; Canpolat, N; Kara, N; Sirin, A; Ekim, M; Oner, A; Akman, S; Mir, S; Baskin, E; Poyrazoglu, H; Noyan, A; Akil, I; Bakkaloglu, S; Soylu, A
Molecular analysis of the AGXT gene in patients suspected with hyperoxaluria type 1 and three novel mutations from Turkey
Isiyel, E; Ezgu, SAB; Caliskan, S; Akman, S; Akil, I; Tabel, Y; Akinci, N; Ozdogan, EB; Ozel, A; Eroglu, FK; Ezgu, FS
Primary hyperoxaluria type 1 (PH1) is a rare, autosomal recessive disease, caused by the defect of AGXT gene encoding hepatic peroxisomal alanine glyoxylateaminotransferase (AGT). This enzyme is responsible for the conversion of glyoxylate to glycine. The diagnosis of PH1 should be suspected in infants and children with nephrocalcinosis or nephrolithiasis. Early diagnosis and treatment is crucial in preventing disease progression to end stage kidney disease (ESKD). In this study, AGXT gene sequence analyses were performed in 82 patients who were clinically suspected (hyperoxaluria and nephrolithiasis or nephrocalcinosis with or without renal impairment) to have PH1. Disease causing mutations have been found in fifteen patients from thirteen families (18%). Novel mutations have been found (c.458T > A (p.L153X), c.733_734delAA (p.Lys245Valfs*11), c.52 C > T (p.L18F)) in three of 13 families. There were 3-year lag time between initial symptoms and the time of PH1 is suspected; additionally, 5.5-year lag time between initial symptoms and definitive diagnosis. Consanguinity was detected in 77% of the patients with mutation. After genetic diagnosis, one patient received combined kidney and liver transplantation. AGXT gene sequencing is now the choice of diagnosis of PH1 due to its non-invasive nature compared to liver enzyme assay. Early diagnosis and accurate treatment in PH1 is important for better patient outcomes. (C) 2016 Published by Elsevier Inc.
Mutation Analysis Of Primary Hyperoxaluria Type 1
Isiyel, E; Bakkaloglu, SA; Ezgu, FS; Caliskan, S; Akman, S; Akil, I; Tabel, Y; Akinci, N; Bahat, E
COVID-19 IN PEDIATRIC NEPHROLOGY CENTERS IN TURKEY
Bakkaloglu, SA; Atikel, YÖ; LeventoGlu, E; Nalçacioglu, H; Dursun, I; PoyrazoGlu, H; Dursun, H; Yildirim, ZY; Yildiz, N; Aksoy, GK; Akman, S; Tasdemir, M; Bilge, I; Çelakil, M; Kiliç, BD; Selçuk, SZ; Canpolat, N; Çakici, EK; Özlü, SG; Tülpar, S; Yüksel, S; Atmis, B; Döven, SS; Taner, S; Ertan, P; Kavaz, A; Bayram, MT; Kalyoncu, M; GÜlleroGlu, K; Kabasakal, C; Demir, BK; Çiçek, RY; Dönmez, O; Kara, A; Yavascan, Ö; Özçelik, G; Yildirim, DG; Güler, MA; Sönmez, F; Topaloglu, R; Alpay, H
COVID-19 in pediatric nephrology centers in Turkey
Leventoglu, E; Özdemir Atikel, Y; Nalçacioglu, H; Dursun, I; Dursun, H; Yürük Yildirim, Z; Yildiz, N; Kaya Aksoy, G; Tasdemir, M; Çelakil, M; Demircioglu Kiliç, B; Zirhli Selçuk, S; Canpolat, N; Kargin Cakici, E; Özlü, SG; Tülpar, S; Yüksel, S; Atmis, B; Sürmeli Döven, S; Taner, S; Ertan, P; Kavaz, A; Torun Bayram, M; Kalyoncu, M; Gülleroglu, K; Kabasakal, C; Kasap Demir, B; Çiçek, RY; Bilge, I; Dönmez, O; Kara, A; Yavascan, Ö; Özçelik, G; Gezgin Yildirim, D; Güler, MA; Sönmez, F; Poyrazoglu, H; Akman, S; Topaloglu, R; Alpay, H; Bakkaloglu, SA
Background/aim: There is limited data on COVID-19 disease in children with kidney disease. We aimed to investigate the characteristics and prognosis of COVID-19 in pediatric nephrology patients in Turkey. Materials and methods: This was a national, multicenter, retrospective cohort study based on an online survey evaluating the data between 11th March 2020 and 11th March 2021 as an initial step of a detailed pediatric nephrology COVID-19 registry. Results: Two hundred and three patients (89 girls and 114 boys) were diagnosed with COVID-19. One-third of these patients (36.9%) were between 10-15 years old. Half of the patients were on kidney replacement therapy: kidney transplant (KTx) recipients (n = 56, 27.5%), patients receiving chronic hemodialysis (n = 33, 16.3%) and those on peritoneal dialysis (PD) (n = 18, 8.9%). Fifty-four (26.6%) children were asymptomatic. Eighty-two (40.3%) patients were hospitalized and 23 (28%) needed intensive care unit admission. Fifty-five percent of the patients were not treated, while the remaining was given favipiravir (20.7%), steroid (16.3%), and hydroxychloroquine (11.3%). Acute kidney injury developed in 19.5% of hospitalized patients. Five (2.4%) had MIS-C. Eighty-three percent of the patients were discharged without any apparent sequelae, while 7 (3.4%) died. One hundred and eight health care staff were infected during the study period. Conclusion: COVID-19 was most commonly seen in patients who underwent KTx and received HD. The combined immunosuppressive therapy and frequent exposure to the hospital setting may increase these patients' susceptibility. Staff infections before vaccination era were alarming, various precautions should be taken for infection control, particularly optimal vaccination coverage.

Browsing by Author "Akman, S"

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