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Bozkurt C, Hazar V, Malbora B, Küpesiz A, Aygüneş U, Fışgın T, Karakükçü M, Kuşkonmaz B, Kılıç SÇ, Bayırlı D, Arman Bilir Ö, Yalçın K, Gözmen S, Uygun V, Elli M, Sarbay H, Küpesiz FT, Şaşmaz Hİ, Aksoy BA, Yılmaz E, Okur FV, Tekkeşin F, Yenigürbüz FD, Özek G, Atay AA, Bozkaya İO, Çelen S, Öztürkmen S, Güneş AM, Gürsel O, Güler E, Özcan A, Çetinkaya DU, Aydoğdu S, Özbek NY, Karasu G, Sezgin G, Doğru Ö, Albayrak D, Öztürk G, Aksoylar S, Daloğlu H, Odaman Al I, Evim MS, Akbayram S, Öncül Y, Zengin E, Albayrak C, Timur Ç, Kar YD, Çakmaklı HF, Tüfekçi Ö, Töret E, Antmen B. COVID-19 disease in children and adolescents following allogeneic hematopoietic stem cell transplantation: A report from the Turkish pediatric bone marrow transplantation study group. Pediatr Transplant 2024; 28:e14758. [PMID: 38659218 DOI: 10.1111/petr.14758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 02/27/2024] [Accepted: 04/01/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Data on the risk factors and outcomes for pediatric patients with SARS-CoV-2 infection (COVID-19) following hematopoietic stem cell transplantation (HSCT) are limited. OBJECTIVES The study aimed to analyze the clinical signs, risk factors, and outcomes for ICU admission and mortality in a large pediatric cohort who underwent allogeneic HSCT prior to COVID-19 infection. METHOD In this nationwide study, we retrospectively reviewed the data of 184 pediatric HSCT recipients who had COVID-19 between March 2020 and August 2022. RESULTS The median time from HSCT to COVID-19 infection was 209.0 days (IQR, 111.7-340.8; range, 0-3845 days). The most common clinical manifestation was fever (58.7%). While most patients (78.8%) had asymptomatic/mild disease, the disease severity was moderate in 9.2% and severe and critical in 4.4% and 7.6%, respectively. The overall mortality was 10.9% (n: 20). Deaths were attributable to COVID-19 in nine (4.9%) patients. Multivariate analysis revealed that lower respiratory tract disease (LRTD) (OR, 23.20, p: .001) and lymphopenia at diagnosis (OR, 5.21, p: .006) were risk factors for ICU admission and that HSCT from a mismatched donor (OR, 54.04, p: .028), multisystem inflammatory syndrome in children (MIS-C) (OR, 31.07, p: .003), and LRTD (OR, 10.11, p: .035) were associated with a higher risk for COVID-19-related mortality. CONCLUSION While COVID-19 is mostly asymptomatic or mild in pediatric transplant recipients, it can cause ICU admission in those with LRTD or lymphopenia at diagnosis and may be more fatal in those who are transplanted from a mismatched donor and those who develop MIS-C or LRTD.
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Affiliation(s)
- Ceyhun Bozkurt
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Istinye University School of Medicine, Bahçelievler Medicalpark Hospital, Istanbul, Turkey
| | - Volkan Hazar
- Department of Pediatric Hematology-Oncology, Memorial Health Group, Medstar Yıldız Hospital, Antalya, Turkey
| | - Barış Malbora
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Yeni Yüzyıl University School of Medicine, Istanbul, Turkey
| | - Alphan Küpesiz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Akdeniz University School of Medicine, Antalya, Turkey
| | - Utku Aygüneş
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Acıbadem Adana Hospital, Adana, Turkey
| | - Tunç Fışgın
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Bahçelievler Medicalpark Hospital, Altınbaş University School of Medicine, Istanbul, Turkey
| | - Musa Karakükçü
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Erciyes University School of Medicine, Kayseri, Turkey
| | - Barış Kuşkonmaz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Hacettepe University School of Medicine, Ankara, Turkey
| | - Suar Çakı Kılıç
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Derya Bayırlı
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Yeni Yüzyıl University School of Medicine, Istanbul, Turkey
| | - Özlem Arman Bilir
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ankara City Hospital, Ankara, Turkey
| | - Koray Yalçın
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Göztepe Hospital, Istanbul, Turkey
| | - Salih Gözmen
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Behçet Uz Training and Research Hospital, Izmir, Turkey
| | - Vedat Uygun
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Antalya Hospital, Antalya, Turkey
| | - Murat Elli
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medipol University School of Medicine, Istanbul, Turkey
| | - Hakan Sarbay
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Yeni Yüzyıl University School of Medicine, Istanbul, Turkey
| | - Funda Tayfun Küpesiz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Akdeniz University School of Medicine, Antalya, Turkey
| | - Hatice İlgen Şaşmaz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Acıbadem Adana Hospital, Adana, Turkey
| | - Başak Adaklı Aksoy
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Bahçelievler Medicalpark Hospital, Altınbaş University School of Medicine, Istanbul, Turkey
| | - Ebru Yılmaz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Erciyes University School of Medicine, Kayseri, Turkey
| | - Fatma Visal Okur
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Hacettepe University School of Medicine, Ankara, Turkey
| | - Funda Tekkeşin
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Fatma Demir Yenigürbüz
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Acıbadem University School of Medicine, Istanbul, Turkey
| | - Gülcihan Özek
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ege University School of Medicine, İzmir, Turkey
| | - Abdullah Avni Atay
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Yeni Yüzyıl University School of Medicine, Istanbul, Turkey
| | - İkbal Ok Bozkaya
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ankara City Hospital, Ankara, Turkey
| | - Suna Çelen
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Göztepe Hospital, Istanbul, Turkey
| | - Seda Öztürkmen
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Antalya Hospital, Antalya, Turkey
| | - Adalet Meral Güneş
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Uludağ University School of Medicine, Bursa, Turkey
| | - Orhan Gürsel
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Gülhane Training and Research Hospital, Ankara, Turkey
| | - Elif Güler
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Akdeniz University School of Medicine, Antalya, Turkey
| | - Alper Özcan
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Erciyes University School of Medicine, Kayseri, Turkey
| | - Duygu Uçkan Çetinkaya
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Hacettepe University School of Medicine, Ankara, Turkey
| | - Selime Aydoğdu
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - Namık Yaşar Özbek
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ankara City Hospital, Ankara, Turkey
| | - Gülsün Karasu
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Göztepe Hospital, Istanbul, Turkey
| | - Gülay Sezgin
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Çukurova University School of Medicine, Adana, Turkey
| | - Ömer Doğru
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Marmara University School of Medicine, Istanbul, Turkey
| | - Davut Albayrak
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Samsun Hospital, Samsun, Turkey
| | - Gülyüz Öztürk
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Acıbadem University School of Medicine, Istanbul, Turkey
| | - Serap Aksoylar
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ege University School of Medicine, İzmir, Turkey
| | - Hayriye Daloğlu
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medical Park Antalya Hospital, Antalya, Turkey
| | - Işık Odaman Al
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Medipol University School of Medicine, Istanbul, Turkey
| | - Melike Sezgin Evim
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Uludağ University School of Medicine, Bursa, Turkey
| | - Sinan Akbayram
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Gaziantep University School of Medicine, Gaziantep, Turkey
| | - Yurday Öncül
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Inönü University School of Medicine, Malatya, Turkey
| | - Emine Zengin
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Kocaeli University School of Medicine, Kocaeli, Turkey
| | - Canan Albayrak
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ondokuz Mayıs University School of Medicine, Samsun, Turkey
| | - Çetin Timur
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Yeditepe University School of Medicine, Istanbul, Turkey
| | - Yeter Düzenli Kar
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Afyon Health Sciences University School of Medicine, Afyonkarahisar, Turkey
| | - Hasan Fatih Çakmaklı
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Ankara University School of Medicine, Ankara, Turkey
| | - Özlem Tüfekçi
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Dokuz Eylül University School of Medicine, İzmir, Turkey
| | - Ersin Töret
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Bülent Antmen
- Department of Pediatric Hematology-Oncology and Bone Marrow Transplantation, Acıbadem Adana Hospital, Adana, Turkey
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Öncül Y, Akyay A, Özgen Ü. Thromboembolism in Children. Indian J Pediatr 2023:10.1007/s12098-023-04539-3. [PMID: 37142860 DOI: 10.1007/s12098-023-04539-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 02/23/2023] [Indexed: 05/06/2023]
Abstract
OBJECTIVE To study pediatric patients who were diagnosed with thrombosis between January 2009 and March 2020. METHODS Patients were evaluated with respect to thrombophilic risk factors, localization of the thrombus, response to treatment, and recurrence rates during the last 11 y. RESULTS Among 84 patients, 59 (70%) had venous thrombosis and 20 (24%) had arterial thrombosis. The number of documented thrombosis amongst hospitalized children in authors' hospital has increased over the years. It has been observed that the annual incidence of thromboembolism has increased after 2014. Thirteen patients were recorded between 2009 and 2014 and 71 patients between 2015 and 2020 (until March 2020). Exact thrombosis localization could not be detected in 5 patients. The median age of patients was 8 ± 5.95 (range 0-18). Fourteen children (16.9%) had a history of familial thrombosis. Genetic and/or acquired risk factors were detected in 81 (96.4%) of the patients. Overall, 64 patients (76.1%) had acquired risk factors such as infection (20.2%), catheterization (13.1%), liver disease (11.9%), mastoiditis (8.3%), liver transplantation (6%), hypoxic-ischemic encephalopathy (4.8%), dehydration (3.6%), trauma (3.6%) and cancer (2.4%). As genetic risk factors, the most common genetic mutations were PAI-1 4G>5G, MTHFR C677T, and MTHFR A1298C mutations. Twenty-eight (41.2%) patients had at least one genetic thrombophilic mutation. At least one homozygous mutation in 37 patients (44%) and at least one heterozygous mutation in 55 patients (65.4%) were detected. CONCLUSIONS The annual incidence of thrombosis has increased over the years. Genetic predisposition and acquired risk factors play an important role in etiology, treatment, and follow-up in children with thromboembolism. Especially, genetic predisposition is common. Thrombophilic risk factors should be investigated and optimal therapeutic and prophylactic measures should be promptly taken in children with thrombosis.
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Affiliation(s)
- Yurday Öncül
- Department of Pediatric Hematology and Oncology, Inonu University School of Medicine, Malatya, Turkey.
| | - Arzu Akyay
- Department of Pediatric Hematology and Oncology, Inonu University School of Medicine, Malatya, Turkey
| | - Ünsal Özgen
- Department of Pediatric Hematology and Oncology, Inonu University School of Medicine, Malatya, Turkey
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Gurlek Gokcebay D, Küpeli S, Gürsel O, Arman Bilir O, Akyay A, Pekpak E, Akbayram S, Öncül Y, Meral Güneş A, Kirkiz S, Çakı Kılıç S, Ok Bozkaya İ, Ozbek NY. Hematopoietic stem cell transplantation activities and HRQOL of refugee or asylum seeker children in Turkey: A multicenter study. Pediatr Transplant 2022; 26:e14397. [PMID: 36207767 DOI: 10.1111/petr.14397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 10/10/2022]
Abstract
BACKGROUND Refugee or asylum seekers (RAS) children are at increased risk of physical, developmental, and behavioral health issues. The aim of this study was to evaluate clinical and psychosocial outcomes of hematopoietic stem cell transplantation (HSCT) in RAS children and compare health-related quality of life (HRQOL) to those of Turkish peers. METHODS This retrospective study included patients who underwent HSCT aged 0-18 years and completed 100-day post-transplant. The PedsQL 4.0 Generic Core Scale was used in children over 5 years old to compare HRQOL. RESULTS A total of 166 RAS patients (M/F: 106 /60) underwent 174 HSCTs (six patients had two, and one had three HSCT) compared to 66 Turkish patients. The mean age of the patients in the RAS group was 7.8 ± 4.9 years and similar to controls. A total of 124 patients (75%) were from Syria, and 49 (25%) were from other countries in the Middle East and Africa. The cause of migration was war in 121 (74%) RAS patients. Complications of HSCT were no different between the groups. However, the rate of neutropenic sepsis was significantly higher in the RAS group (p = 0.004). The total scores of HRQOL were not different between RAS and controls. In the RAS group, ratings of social functioning were lower in patients with consanguinity or non-malignant disease or who had match-related donors. DISCUSSION Identifying areas of difficulty in subscales of HRQOL may help physicians to classify patients who need additional supportive care. Regular monitoring and supporting physical needs may result in better functional outcomes after HSCT.
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Affiliation(s)
- Dilek Gurlek Gokcebay
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Serhan Küpeli
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, Çukurova University, Adana, Turkey
| | - Orhan Gürsel
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Gülhane Training and Research Hospital, Ankara, Turkey
| | - Ozlem Arman Bilir
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Arzu Akyay
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, İnönü University, Malatya, Turkey
| | - Esra Pekpak
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, Gaziantep University, Gaziantep, Turkey
| | - Sinan Akbayram
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, Gaziantep University, Gaziantep, Turkey
| | - Yurday Öncül
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, İnönü University, Malatya, Turkey
| | - Adalet Meral Güneş
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, Uludağ University, Bursa, Turkey
| | - Serap Kirkiz
- Faculty of Medicine Pediatric Bone Marrow Transplantation Unit, Gazi University, Ankara, Turkey
| | - Suar Çakı Kılıç
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Ümraniye Training and Research Hospital, Istanbul, Turkey
| | - İkbal Ok Bozkaya
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Ankara City Hospital, Ankara, Turkey
| | - Namık Yasar Ozbek
- Pediatric Bone Marrow Transplantation Unit, University of Health Sciences Ankara City Hospital, Ankara, Turkey
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Cakan P, Yildiz S, Akyay A, Öncül Y. Intensive chemotherapy perturbs heart rate variability in children with cancer. Neurophysiol Clin 2021; 52:69-80. [PMID: 34973888 DOI: 10.1016/j.neucli.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES In children, cancer chemotherapy may impair the functioning of the cardiac autonomic nervous system. Moreover, it is not known whether there are any differences between intensive and maintenance phases of chemotherapy. Therefore, the aim of the current study was to assess autonomic nervous system activity using heart rate variability, in children receiving intensive or maintenance cancer chemotherapy. METHODS For that purpose, children who were healthy (healthy control, n = 30), receiving intensive chemotherapy (chemotherapy, n = 30), and receiving maintenance chemotherapy (maintenance, n = 25) were included in the study. Autonomic nervous system activity was measured by means of heart rate variability. Electrocardiogram recordings were used to calculate time- and frequency-domain heart rate variability parameters. RESULTS Time-domain parameters such as standard deviation of NN intervals and frequency-domain parameters such as total power were lower during the intensive chemotherapy but not during maintenance phase (standard deviation of NN intervals: 50±5, 33±3, and 48±3 ms, and total power: 2613±504, 1379±296 and 2295±264 ms2, respectively for healthy control, chemotherapy and maintenance groups, P<0.001 for both standard deviation of NN intervals and total power). DISCUSSION The present results indicate that intensive chemotherapy perturbs the function of heart rate variability in children, with recovery during the maintenance phase. This suggests that intensive chemotherapy is likely to affect the autonomic nervous system but this effect does not appear to be permanent.
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Affiliation(s)
- Pinar Cakan
- Department of Physiology, University of Health Sciences, Hamidiye Faculty of Medicine, Istanbul, Turkey.
| | - Sedat Yildiz
- Department of Physiology Inonu University, Faculty of Medicine, Malatya, Turkey
| | - Arzu Akyay
- Department of Pediatric Hematology, Inonu University, Faculty of Medicine, Malatya, Turkey
| | - Yurday Öncül
- Department of Pediatric Hematology, Inonu University, Faculty of Medicine, Malatya, Turkey
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Akdeniz A, Ünüvar A, Ar MC, Pekpak E, Akyay A, Mehtap Ö, Karadağ FK, Acıpayam C, Doğan A, Ekinci Ö, Köker SA, Albayrak C, Demirci U, Güney T, Kurt M, Karaman S, Kimyon ÖŞ, Albayrak S, Öncül Y, Ünal S, Şahin F, Tuna R, Zulfikar B, Apak BB, Ümit EG, Demir AM. Results of multicenter registry for patients with inherited factor VII deficiency in Turkey. Scand J Clin Lab Invest 2021; 82:28-36. [PMID: 34915774 DOI: 10.1080/00365513.2021.2013524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Inherited factor VII (FVII) deficiency (FVIID) is the most common of inherited rare bleeding disorders. Other determinants of clinical severity apart from FVII level (FVIIL) include genetic and environmental factors. We aimed to identify the cut-off FVIILs for general and severe bleedings in patients with FVIID by using an online national registry system including clinical, laboratory, and demographic characteristics of patients. METHODS Demographic, clinical, and laboratory data of patients with FVIID extracted from the national database, constituted by the Turkish Society of Hematology, were examined. Bleeding phenotypes, general characteristics, and laboratory features were assessed in terms of FVIILs. Bleeding rates and prophylaxis during special procedures/interventions were also recorded. RESULTS Data from 197 patients showed that 46.2% of patients had FVIIL< 10%. Most bleeds were of mucosal origin (67.7%), and severe bleeds tended to occur in younger patients (median age: 15 (IQR:6-29)). Cut-off FVIILs for all and severe bleeds were 16.5% and 7.5%, respectively. The major reason for long-term prophylaxis was observed as central nervous system bleeding (80%). CONCLUSION Our data are consistent with most of the published literature in terms of cut-off FVIIL for bleeding, as well as reasons for prophylaxis, showing both an increased severity of bleeding and younger age at diagnosis with decreasing FVIIL. However, in order to offer a classification similar to that in Hemophilia A or B, data of a larger cohort with information about environmental and genetic factors are required.
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Affiliation(s)
- Aydan Akdeniz
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Mersin University, Mersin, Turkey
| | - Ayşegül Ünüvar
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Istanbul University Hospital, Istanbul, Turkey
| | - Muhlis Cem Ar
- Division of Hematology, Department of Internal Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Esra Pekpak
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Gaziantep Children's Hospital, Gaziantep, Turkey
| | - Arzu Akyay
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Inonu University, Malatya, Turkey
| | - Özgür Mehtap
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Kocaeli University, Kocaeli, Turkey
| | - Fatma Keklik Karadağ
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Ege University, İzmir, Turkey
| | - Can Acıpayam
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Sutcu Imam University, Kahramanmaras, Turkey
| | - Ali Doğan
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Yuzuncu Yıl University, Van, Turkey
| | - Ömer Ekinci
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Firat University, Elazığ, Turkey
| | - Sultan Aydın Köker
- Department of Pediatric Hematology and Oncology, Antakya State Hospital, Antakya, Turkey
| | - Canan Albayrak
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Ondokuz Mayıs University, Samsun, Turkey
| | - Ufuk Demirci
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Trakya University, Edirne, Turkey
| | - Tekin Güney
- Department of Hematology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Meltem Kurt
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Ankara University, Ankara, Turkey
| | - Serap Karaman
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Istanbul University Hospital, Istanbul, Turkey
| | - Özge Şahin Kimyon
- Division of Hematology, Department of Internal Medicine, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sinan Albayrak
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Gaziantep Children's Hospital, Gaziantep, Turkey
| | - Yurday Öncül
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Inonu University, Malatya, Turkey
| | - Serkan Ünal
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Kocaeli University, Kocaeli, Turkey
| | - Fahri Şahin
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Ege University, İzmir, Turkey
| | - Rumeysa Tuna
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Medical Faculty, Istanbul University Hospital, Istanbul, Turkey
| | - Bulent Zulfikar
- Division of Pediatric Hematology-Oncology, Istanbul University, Cerrahpasa Medical Faculty & Istanbul University Oncology Institute, Istanbul, Turkey
| | - Burcu Belen Apak
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Baskent University, Ankara, Turkey
| | - Elif Gülsüm Ümit
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Trakya University, Edirne, Turkey
| | - Ahmet Muzaffer Demir
- Division of Hematology, Department of Internal Medicine, Medical Faculty, Trakya University, Edirne, Turkey
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Cakan P, Yildiz S, Akyay A, Öncül Y. Erythrocyte transfusion restored heart rate variability in children with thalassemia major. Transfus Apher Sci 2021; 60:103156. [PMID: 33985917 DOI: 10.1016/j.transci.2021.103156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 04/12/2021] [Accepted: 05/03/2021] [Indexed: 12/17/2022]
Abstract
Thalassemia major (TM) is a severe transfusion-dependent anemia. Regular erytrocyte transfusion is required for the treatment of thalassemia patients. However, repeated transfusion may result in impairements in heart function. In this study, we aimed to investigate short-term effects of erythrocyte transfusion on autonomic control of heart in children with thalassemia major. For that purpose heart rate variability (HRV), which is a non-invasive method used to evaluate the effects of the autonomic nervous system on the heart rhythym, was measured before and after erythrocyte transfusion and compared to the healthy controls. Children diagnosed with TM (n = 17) and sex and age matched healthy children (HC, n = 30) were included in the study. HRV values of TM patients were measured 5 min before erythrocyte transfusion (BET, n = 17) and 5 min after erythrocyte transfusion (AET, n = 17). Parameters of time-domain and frequency-domain of HRV were evaluated in all participants. Heart rate (HR) was higher in the BET than AET (P = 0.002) but there was no difference between AET and HC groups (P > 0.05). HRV parameters were lower in BET than AET (P < 0.05) but there were no statistical difference between AET and HC (P> 0.05). The data suggest that, in thalassemia major patients, erythrocyte transfusion restores HR and HRV parameters to the levels observed in healthy controls and, thus, in short-terms, appears to be beneficial for the autonomic control of the heart.
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Affiliation(s)
- Pinar Cakan
- Department of Physiology, Istanbul Health Sciences University, Faculty of Medicine, Istanbul, Turkey.
| | - Sedat Yildiz
- Department of Physiology, Inonu University, Faculty of Medicine, Malatya, Turkey
| | - Arzu Akyay
- Department of Pediatric Hematology and Oncology, Inonu University, Faculty of Medicine, Malatya, Turkey
| | - Yurday Öncül
- Department of Pediatric Hematology and Oncology, Inonu University, Faculty of Medicine, Malatya, Turkey
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Akyay A, Öncül Y. Comment on: Eltrombopag for thrombocytopenia following allogeneic hematopoietic stem cell transplantation in children. Pediatr Blood Cancer 2020; 67:e28304. [PMID: 33332023 DOI: 10.1002/pbc.28304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 03/18/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Arzu Akyay
- Faculty of Medicine, Department of Pediatric Hematology and Oncology, Inonu University, Malatya, 44000, Turkey
| | - Yurday Öncül
- Faculty of Medicine, Department of Pediatric Hematology and Oncology, Inonu University, Malatya, 44000, Turkey
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Öncül Y, Akyay A, Tekedereli İ. A Novel Mutation in a Patient with Wiskott-Aldrich Syndrome. Turk J Haematol 2020; 37:128-129. [PMID: 31994849 PMCID: PMC7236416 DOI: 10.4274/tjh.galenos.2020.2019.0321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Yurday Öncül
- İnönü University Faculty of Medicine, Division of Pediatric Hematology, Malatya, Turkey
| | - Arzu Akyay
- İnönü University Faculty of Medicine, Division of Pediatric Hematology, Malatya, Turkey
| | - İbrahim Tekedereli
- İnönü University Faculty of Medicine, Division of Medical Genetics, Malatya, Turkey
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