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East Mediterranean region sickle cell disease mortality trial: retrospective multicenter cohort analysis of 735 patients

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dc.creator Yeral, Mahmut
dc.creator Ozdogu, Hakan
dc.creator Boga, Can
dc.creator Sariturk, Çagla
dc.creator Gurkan, Emel
dc.creator KAYA, HASAN
dc.creator Unal, Selma
dc.creator Ozbalcı, Demircan
dc.creator Kasar, Mutlu
dc.creator Gereklioglu, Cigdem
dc.creator Buyukkurt, Nurhilal Turgut
dc.creator Solmaz, Soner
dc.creator Korur, Aslı
dc.creator Asma, Suheyl
dc.creator Karacaoglu, Pelin Kardaş
dc.date 2016-05-01T00:00:00Z
dc.date.accessioned 2025-02-25T10:37:09Z
dc.date.available 2025-02-25T10:37:09Z
dc.identifier b93d7979-c60d-493e-baa5-f363c821c7fc
dc.identifier 10.1007/s00277-016-2655-5
dc.identifier https://avesis.sdu.edu.tr/publication/details/b93d7979-c60d-493e-baa5-f363c821c7fc/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/101125
dc.description Sickle cell disease (SCD), one of the most common genetic disorders worldwide, is characterized by hemolytic anemia and tissue damage from the rigid red blood cells. Although hydroxyurea and transfusion therapy are administered to treat the accompanying tissue injury, whether either one prolongs the lifespan of patients with SCD is unknown. SCD-related mortality data are available, but there are few studies on mortality-related factors based on evaluations of surviving patients. In addition, ethnic variability in patient registries has complicated detailed analyses. The aim of this study was to investigate mortality and mortality-related factors among an ethnically homogeneous population of patients with SCD. The 735 patients (102 children and 633 adults) included in this retrospective cohort study were of Eti-Turk origin and selected from 1367 patients seen at 5 regional hospitals. A central population management system was used to control for records of patient mortality. Data reliability was checked by a data supervision group. Mortality-related factors and predictors were identified in univariate and multivariate analyses using a Cox regression model with stepwise forward selection. The study group included patients with homozygous hemoglobin S (Hgb S) disease (67 %), Hb S-β0 thalassemia (17 %), Hgb S-β+ thalassemia (15 %), and Hb S-α thalassemia (1 %). They were followed for a median of 66 ± 44 (3–148) months. Overall mortality at 5 years was 6.1 %. Of the 45 patients who died, 44 (6 %) were adults and 1 (0.1 %) was a child. The mean age at death was 34.1 ± 10 (18–54) years for males, 40.1 ± 15 (17–64) years for females, and 36.6 ± 13 (17–64) years overall. Hydroxyurea was found to have a notable positive effect on mortality (p = 0.009). Mortality was also significantly related to hypertension and renal damage in a univariate analysis (p = 0.015 and p = 0.000, respectively). Acute chest syndrome, splenic sequestration, and prolonged painful-crisis-related multiorgan failure were the most common causes of mortality. In a multivariate analysis of laboratory values, only an elevated white blood cell count was related to mortality (p = 0.009). These data show that despite recent progress in the treatment of SCD, disease-related factors continue to result in mortality in young adult patients. Our results highlight the importance of evaluating curative treatment options for patients who have an appropriate stem cell donor in addition to improving patient care and patient education.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title East Mediterranean region sickle cell disease mortality trial: retrospective multicenter cohort analysis of 735 patients
dc.type info:eu-repo/semantics/article


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