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Background: Lifelong blood transfusion is recommended for patients with transfusion-dependent thalassemia (TDT) that lead to iron overload and results in cardiomyopathy (CM). Aim: To assess the accuracy of several electrocardiographic (ECG) data in patients at high risk of arrhythmia, early detection of structural and functional changes in left atrium and ventricle using ECG and echocardiography (two dimensional, M-mode echocardiography along with Doppler studies), and to observe the correlations between plasma B-type atrial natriuretic peptide (BNP)/serum ferritin and ECG with Doppler as well as echocardiographic changes in patients with TDT. Methods: The current prospective case-control study included 75 TDT patients and 74 control subjects with the mean age of 9.55 and 9.93 years, respectively. Participants were assessed for the socio-demographic, physical examinations, serum ferritin, plasma BNP, ECG, 2D echocardiography, and tissue/pulse wave Doppler. Results: The mean of serum ferritin and plasma BNP were significantly (p<0.001) higher in the cases (1475.19 ng/mL and 47.63 pg/mL, respectively) than controls (41.3 ng/mL and BNP 23.37 pg/mL, respectively). ECG findings showed significant higher P-wave dispersion, QRS duration, QT duration and dispersion, and JTc dispersion in cases than controls. Echocardiography findings revealed diastolic dysfunction with preserved ejection fraction (EF) in thalassemia cases, as well as significant higher left ventricular (LV) mass, LV internal diameters during systole and diastole (LVIDs and d) and LV posterior wall thickness during diastole (LVPWd) in cases than controls (p<0.05). Also, a significant (p<0.05) correlation between BNP and QT dispersion was found in patients. Conclusion: These findings suggest the usefulness of ECG, 2D echocardiographic, Doppler studies and plasma BNP, with no significant beneficial effect of serum ferritin level in detecting early cardiac changes in patients with TDT.
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BACKGROUND: ß-thalassemia is a significant problem in the northeastern part of Iraq, and has imposed a huge burden on the health authorities. OBJECTIVE: To identify the molecular characterization and morbidity prevalence in transfusion-dependent thalassemia (TDT) and non-transfusion dependent thalassemia (NTDT) phenotypes in northeastern Iraq. PATIENTS AND METHODS: This is a cross-sectional study conducted on 242 ß-thalassemia patients from 162 families. Reverse hybridization technique and direct gene sequencing were used to characterize ß-thalassemia mutations, and medical records of the patients were reviewed with a well-designed questionnaire. RESULTS: A total of 22 ß-globin mutations arranged in 53 different genotypes were identified: IVS-II-1 (G> A) (35.7%), followed by IVS-I-6 (T> C) (18.0%), and codon 8/9 (+G) (8.5%) were the most frequent. Among disease-related morbidities, bone disease amounted to (66.9%), followed by endocrinopathies (32.2%), hepatobiliary complications (28.9%), and pulmonary hypertension (9.9%), whereas thrombosis, extramedullary hemopoiesis, and leg ulcers were less frequent. CONCLUSION: The overall complications rate was 78.9%, with a growing probability of complications with advanced age, with evidently higher rates in patients with ß0ß0 and ß0ß+ genotypes that explain the role of underlying genetic defects in the pathophysiology of disease complications.
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[This corrects the article DOI: 10.1155/2020/2807120.].
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OBJECTIVE: To determine the molecular characterization and disease-associated complications of beta-thalassemia intermedia (ß-TI) patients in Sulaymaniyah province, northeastern Iraq. METHODS: A total of 159 ß-TI) patients in Sulaymaniyah province, northeastern Iraq. ß-TI) patients in Sulaymaniyah province, northeastern Iraq. RESULTS: Nineteen different ß-globin gene mutations arranged in 37 various genotypes were determined. The most frequent were IVS-II-I (G>A) (47.2%), followed by IVS-I-6 (T>C) (23.3%) and IVS-I-110 (G>A) (5%). Among disease-related morbidities documented, bone disease amounted to 53% (facial deformity and osteoporosis), followed by endocrinopathies 17.6% (growth retardation and subclinical hypothyroidism), cholelithiasis 13.8%, pulmonary hypertension 11.3%, and abnormal liver function test 7.5%, whereas venous thrombosis, extramedullary hemopoiesis, and leg ulcer were less frequently observed. Age ≥ 35 and female sex were risk factors for cholelithiasis, while age was an independent risk for hypothyroidism and female sex was associated with increased risk for osteoporosis. Mean serum ferritin of ≥1000 µg/L was associated with an increased risk of osteoporosis, whereas chelation therapy was protective for a multitude of other complications. Transfusion, on the other hand, increased the risk of osteoporosis, yet it was protective for cholelithiasis and hypothyroidism. Moreover, splenectomy was protective for cholelithiasis, although it was an independent risk for hypothyroidism. Finally, hydroxyurea was associated with an increased risk of osteoporosis, while it was protective for cholelithiasis. Discussion and Conclusion. ß +-thalassemia mutation had contributed to 41.25 of families with a less severe ß-thalassemia phenotype in the northeastern part of Iraq, justifying the need to investigate the contribution of genetic modifiers in ameliorating disease severity. In addition, the substantial number of ß-TI patients developed disease-related morbidities, which necessitates the need for more appropriate clinical management with earlier intervention.ß-TI) patients in Sulaymaniyah province, northeastern Iraq. µg/L was associated with an increased risk of osteoporosis, whereas chelation therapy was protective for a multitude of other complications. Transfusion, on the other hand, increased the risk of osteoporosis, yet it was protective for cholelithiasis and hypothyroidism. Moreover, splenectomy was protective for cholelithiasis, although it was an independent risk for hypothyroidism. Finally, hydroxyurea was associated with an increased risk of osteoporosis, while it was protective for cholelithiasis. Discussion and Conclusion. ß +-thalassemia mutation had contributed to 41.25 of families with a less severe ß-thalassemia phenotype in the northeastern part of Iraq, justifying the need to investigate the contribution of genetic modifiers in ameliorating disease severity. In addition, the substantial number of ß-TI patients developed disease-related morbidities, which necessitates the need for more appropriate clinical management with earlier intervention.Discussion and Conclusion. ß +-thalassemia mutation had contributed to 41.25 of families with a less severe ß-thalassemia phenotype in the northeastern part of Iraq, justifying the need to investigate the contribution of genetic modifiers in ameliorating disease severity. In addition, the substantial number of ß-TI patients developed disease-related morbidities, which necessitates the need for more appropriate clinical management with earlier intervention.ß-TI) patients in Sulaymaniyah province, northeastern Iraq. ß-TI) patients in Sulaymaniyah province, northeastern Iraq.
Subject(s)
beta-Thalassemia/epidemiology , beta-Thalassemia/genetics , Adolescent , Adult , Blood Transfusion , Child , Child, Preschool , Cholelithiasis/epidemiology , Cholelithiasis/therapy , Endocrine System Diseases/epidemiology , Female , Ferritins/blood , Genotype , Humans , Hypertension, Pulmonary/epidemiology , Hypothyroidism/epidemiology , Infant , Iraq/epidemiology , Liver Function Tests , Male , Middle Aged , Morbidity , Multivariate Analysis , Mutation , Osteoporosis/epidemiology , Phenotype , Splenectomy , Thalassemia/epidemiology , Young Adult , beta-Globins/genetics , beta-Globins/metabolismABSTRACT
We describe the entire process leading to the start-up of a hematopoietic stem cell transplantation center at the Hiwa Cancer Hospital, in the city of Sulaymaniyah, Kurdistan Iraqi Region. This capacity building project was funded by the Italian Development Cooperation Agency and implemented with the support of the volunteer work of Italian professionals, either physicians, nurses, biologists and technicians. The intervention started in April 2016, was based exclusively on training and coaching on site, that represent a significant innovative approach, and led to a first autologous transplant in June 2016 and to the first allogeneic transplant in October. At the time of reporting, 9 months from the initiation of the project, 18 patients have been transplanted, 15 with an autologous and 3 with an allogeneic graft. The center at the HCH represents the first transplantation center in Kurdistan and the second in wide Iraq. We conclude that international development cooperation may play an important role also in the field of high-technology medicine, and contribute to improved local centers capabilities through country to country scientific exchanges. The methodology to realize this project is innovative, since HSCT experts are brought as volunteers to the center(s) to be started, while traditionally it is the opposite, i.e. the local professionals to be trained are brought to the specialized center(s).