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Iacob SI, Feinn RS, Sardi L. Systematic review of complications arising from male circumcision. BJUI COMPASS 2021; 3:99-123. [PMID: 35474726 PMCID: PMC8988744 DOI: 10.1002/bco2.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/22/2021] [Accepted: 10/19/2021] [Indexed: 12/24/2022] Open
Abstract
Background Neonatal male circumcision is the most common procedure performed on paediatric patients (Simpson et al., 2014) and one of the most common surgical procedures in the world (American Academy of Pediatrics, 2012). Methods A search was conducted for articles about complications arising from male circumcision surgeries by entering the term ‘male circumcision’ into PubMed on June 16, 2020. Six thousand six hundred forty‐one articles published from 1945 to 2020 were found. Seventy‐eight articles were ultimately selected for the systematic review. Results The 78 articles selected from the literature search were entered into one of three tables. The first table includes 15 articles pertaining to chart reviews and cohort studies and report complication rates. The second table reports specific complications from 51 case reports and case series, and the third table is a summary from 12 articles regarding physician questionnaires and society recommendations. Additionally, the 78 articles were used to compile a list of 47 specific complications arising from male circumcision surgeries. Conclusions Complications from neonatal male circumcisions are common and healthcare providers need to be better informed of the potential complications of the surgery so that they can more effectively counsel their patients about potential risks, likelihood of complications and what can be done to prevent them. While experienced providers who practice in sterile settings have better outcomes with fewer complications, encouraging parents to take into account who is performing their son's circumcision, what was their training, how clean is their practice and how much experience they have and reminding them they have the option to decline the procedure entirely allow the parents to get a more complete picture and play an essential role in the decision‐making process.
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Affiliation(s)
- Stanca Iris Iacob
- Frank H. Netter MD School of Medicine Quinnipiac University North Haven Connecticut USA
| | - Richard S. Feinn
- Frank H. Netter MD School of Medicine Quinnipiac University North Haven Connecticut USA
| | - Lauren Sardi
- Department of Sociology Quinnipiac University Hamden Connecticut USA
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Witarto BS, Visuddho V, Witarto AP, Sutanto H, Wiratama BS, Wungu CDK. Efficacy, safety, and immunogenicity of rurioctocog alfa pegol for prophylactic treatment in previously treated patients with severe hemophilia A: a systematic review and meta-analysis of clinical trials. F1000Res 2021; 10:1049. [PMID: 35136579 PMCID: PMC8787562 DOI: 10.12688/f1000research.73884.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2021] [Indexed: 04/06/2024] Open
Abstract
Background: Patients with severe hemophilia often present with painful joint and soft tissue bleeding which may restrict them from their daily activities. The current standard of care still relies on a regular prophylactic factor VIII (FVIII), which has a high daily treatment burden. Recently, rurioctocog alfa pegol, a third-generation recombinant FVIII with a modification in its polyethylene glycol (PEG) component, has been developed. Several trials have studied this synthetic drug as bleeding prophylaxis in severe hemophilia A. This study aims to evaluate the efficacy, safety, and immunogenicity of rurioctocog alfa pegol for previously treated patients with severe hemophilia A. Methods: This study was conducted in conformity with the PRISMA guidelines. Data were retrieved from PubMed, Scopus, Cochrane Library, Wiley Online Library, and CINAHL (via EBSCOhost). Study qualities were assessed using the Methodological Index for Non-Randomized Studies (MINORS) and Modified Jadad scales. Results: Four studies involving 517 previously treated severe hemophilia A patients were included in this study. The pooled mean of total annualized bleeding rate (ABR) and hemostatic efficacy was 2.59 (95% CI = 2.04-3.14) and 92% (95% CI = 85%-97%), respectively. Only 30 (2.3%) non-serious and one (1.4%) serious adverse events were considered related to rurioctocog alfa pegol treatment. At the end of the studies, no development of FVIII inhibitory antibodies was observed. None of the developed binding antibodies to FVIII, PEG-FVIII, or PEG was correlated to the treatment efficacy and safety. Conclusions: Despite the limited availability of direct comparison studies, our analyses indicate that rurioctocog alfa pegol could serve as a safe and effective alternative for bleeding prophylaxis in previously treated hemophilia A patients. Moreover, it appears to have low immunogenicity, which further increases the safety profile of the drug in such clinical conditions.
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Affiliation(s)
| | - Visuddho Visuddho
- Medical Program, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | | | - Henry Sutanto
- Department of Physiology and Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Bayu Satria Wiratama
- Department of Epidemiology, Biostatistics, and Population Health, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Citrawati Dyah Kencono Wungu
- Department of Physiology and Medical Biochemistry, Universitas Airlangga, Surabaya, Indonesia
- Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
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3
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Witarto BS, Visuddho V, Witarto AP, Sutanto H, Wiratama BS, Wungu CDK. Efficacy, safety, and immunogenicity of rurioctocog alfa pegol for prophylactic treatment in previously treated patients with severe hemophilia A: a systematic review and meta-analysis of clinical trials. F1000Res 2021; 10:1049. [PMID: 35136579 PMCID: PMC8787562 DOI: 10.12688/f1000research.73884.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/10/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Patients with severe hemophilia often present with painful joint and soft tissue bleeding which may restrict them from their daily activities. The current standard of care still relies on a regular prophylactic factor VIII (FVIII), which has a high daily treatment burden. Recently, rurioctocog alfa pegol, a third-generation recombinant FVIII with a modification in its polyethylene glycol (PEG) component, has been developed. Several trials have studied this synthetic drug as bleeding prophylaxis in severe hemophilia A. This study aims to evaluate the efficacy, safety, and immunogenicity of rurioctocog alfa pegol for previously treated patients with severe hemophilia A. Methods: This study was conducted in conformity with the PRISMA guidelines. Data were retrieved from PubMed, Scopus, Cochrane Library, Wiley Online Library, and CINAHL (via EBSCOhost). Study qualities were assessed using the Methodological Index for Non-Randomized Studies (MINORS) and Modified Jadad scales. Results: Four studies involving 517 previously treated severe hemophilia A patients were included in this study. The pooled mean of total annualized bleeding rate (ABR) and hemostatic efficacy was 2.59 (95% CI = 2.04-3.14) and 92% (95% CI = 85%-97%), respectively. Only 30 (2.3%) non-serious and one (1.4%) serious adverse events were considered related to rurioctocog alfa pegol treatment. At the end of the studies, no development of FVIII inhibitory antibodies was observed. None of the developed binding antibodies to FVIII, PEG-FVIII, or PEG was correlated to the treatment efficacy and safety. Conclusions: Despite the limited availability of direct comparison studies, our analyses indicate that rurioctocog alfa pegol could serve as a safe and effective alternative for bleeding prophylaxis in previously treated hemophilia A patients. Moreover, it appears to have low immunogenicity, which further increases the safety profile of the drug in such clinical conditions.
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Affiliation(s)
| | - Visuddho Visuddho
- Medical Program, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | | | - Henry Sutanto
- Department of Physiology and Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Bayu Satria Wiratama
- Department of Epidemiology, Biostatistics, and Population Health, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Citrawati Dyah Kencono Wungu
- Department of Physiology and Medical Biochemistry, Universitas Airlangga, Surabaya, Indonesia
- Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
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4
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Witarto BS, Visuddho V, Witarto AP, Sutanto H, Wiratama BS, Wungu CDK. Efficacy safety and immunogenicity of rurioctocog alfa pegol for prophylactic treatment in previously treated patients with severe hemophilia A: a systematic review and meta-analysis of clinical trials. F1000Res 2021; 10:1049. [PMID: 35136579 PMCID: PMC8787562 DOI: 10.12688/f1000research.73884.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/06/2021] [Indexed: 04/06/2024] Open
Abstract
Background: Patients with severe hemophilia often present with painful joint and soft tissue bleeding which may restrict them from their daily activities. The current standard of care still relies on a regular prophylactic factor VIII (FVIII), which has a high daily treatment burden. Recently, rurioctocog alfa pegol, a third-generation recombinant FVIII with a modification in its polyethylene glycol (PEG) component, has been developed. Several trials have studied this synthetic drug as bleeding prophylaxis in severe hemophilia A. This study aims to evaluate the efficacy, safety, and immunogenicity of rurioctocog alfa pegol for previously treated patients with severe hemophilia A. Methods: This study was conducted in conformity with the PRISMA guidelines. Data were retrieved from PubMed, Scopus, Cochrane Library, Wiley Online Library, and CINAHL (via EBSCOhost). Study qualities were assessed using the Methodological Index for Non-Randomized Studies (MINORS) and Modified Jadad scales. Results: Four studies involving 517 previously treated severe hemophilia A patients were included in this study. The pooled mean of total annualized bleeding rate (ABR) and hemostatic efficacy was 2.59 (95% CI = 2.04-3.14) and 92% (95% CI = 85%-97%), respectively. Only 30 (2.3%) non-serious and one (1.4%) serious adverse events were considered related to rurioctocog alfa pegol treatment. At the end of the studies, no development of FVIII inhibitory antibodies was observed. None of the developed binding antibodies to FVIII, PEG-FVIII, or PEG was correlated to the treatment efficacy and safety. Conclusions: Despite the limited availability of direct comparison studies, our analyses indicate that rurioctocog alfa pegol could serve as a safe and effective alternative for bleeding prophylaxis in previously treated hemophilia A patients. Moreover, it appears to have low immunogenicity, which further increases the safety profile of the drug in such clinical conditions.
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Affiliation(s)
| | - Visuddho Visuddho
- Medical Program, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | | | - Henry Sutanto
- Department of Physiology and Pharmacology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Bayu Satria Wiratama
- Department of Epidemiology, Biostatistics, and Population Health, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Citrawati Dyah Kencono Wungu
- Department of Physiology and Medical Biochemistry, Universitas Airlangga, Surabaya, Indonesia
- Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
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Elalfy MS, Mostafa S, Elalfy OM, Ghamry IRE, Meabed M, Zafar T, Tarawah A, Elekiaby M. A survey on practice of circumcision in children with severe haemophilia in Eastern Mediterranean Region. Haemophilia 2021; 27:e617-e619. [PMID: 34110651 DOI: 10.1111/hae.14351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Mohsen Saleh Elalfy
- Children's Hospitals, Pediatric Hematology Oncology Ain Shams University, Cairo, Egypt
| | - Salwa Mostafa
- Children's Hospitals, Pediatric Hematology Oncology Ain Shams University, Cairo, Egypt
| | - Omar Mohsen Elalfy
- Child Health in Complementary Medicine, National Research Center, cairo, Egypt
| | - Islam Reda El Ghamry
- Children's Hospitals, Pediatric Hematology Oncology Ain Shams University, Cairo, Egypt
| | - Mohamed Meabed
- Pediatric Hematology, Pediatric Hematology Bani-Suif University, Bani-Suif, Egypt
| | - Tahira Zafar
- Haemophilia treatment centre, Haemophilia treatment Centre Rawalpindi, Rawalpindi, Pakistan.,Frontier Medical college, Frontier Medical College Abbotabad, Abbotabad, Pakistan
| | - Ahmad Tarawah
- Hereditary Blood Disorders Center, King Abdullah Medical City, AlMadinah, Saudi Arabia
| | - Magdy Elekiaby
- Hematology unit, Shabrawishi Hospital Blood Bank, Giza, Egypt
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El Ekiaby M, Haffar A. Low-dose surgical prophylaxis: Optimization of use of World Federation of Hemophilia Humanitarian Aid donated clotting factor concentrates to developing countries. Haemophilia 2021; 26 Suppl 3:11-15. [PMID: 32356350 DOI: 10.1111/hae.13921] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Patients with hemophilia (PWH) might need surgical interventions during the course of their lives. Such medical interventions pose hemostatic challenges and requests infusion of clotting factor concentrates (CFCs) during peri and postoperative for variable periods to prevent bleeding and until complete wound healing. Access to CFCs to PWH living in resource limited settings is usually a challenge which makes surgical interventions either risky or not practical. Recently World Federation of Hemophilia (WFH) started a humanitarian aid program to channel CFCs into resource limited countries and which allowed the possibility to perform surgical interventions for PWH in these countries. AIM OF WORK To study safety and efficacy of using lower doses of CFCs for surgical prophylaxis. METHODS Review of literature and our center experience to demonstrate safety and efficacy of low dose surgical prophylaxis using CFCs RESULTS: Several elements can help using lower doses of CFCs for surgical prophylaxis in resource limited setting. These elements include severity of hemophilia, type of surgical procedure, the use of hemostatic surgical techniques, the type of CFCs, the mode of infusion of CFCs and finally the use of adjunctive therapies CONCLUSION: Management of surgical procedures for PWH in a multidisciplinary specialized hemophilia treatment centers with proper understanding of hemostatic and surgical challenges of the procedure can allow for safe and effective use of lower doses of CFCs for surgical prophylaxis.
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Affiliation(s)
- Magdy El Ekiaby
- Shabrawishi Hospital Blood Transfusion and Hemophilia Treatment Center, Giza, Egypt
| | - Assad Haffar
- World Federation of Hemophilia, Montreal, QC, Canada
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Circumcision in Hemophilia: A Multicenter Experience. J Pediatr Hematol Oncol 2021; 43:e33-e36. [PMID: 33003145 DOI: 10.1097/mph.0000000000001960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Hemophiliac patients and their families have social pressure to undergo circumcision, despite the potential complications. The objective of this study was to report our experience in the circumcision of hemophilia patients. MATERIALS AND METHODS We included 35 patients with hemophilia who had circumcision in 3 centers from January 2010 to August 2019. Their age ranged between 0.3 months and 8 years. Hemophilia a was classified as mild (n=3), moderate (n=4), and severe (n=28). Patients received 2 doses of factor VIII concentrate 50μ/kg, 1 hour before the procedure and 12 hours after it. RESULTS Four neonates were diagnosed with hemophilia after circumcision because of prolonged bleeding. Two patients with severe hemophilia A had bleeding after hospital discharge (6.5%). They received additional factor concentrate, and 1 patient had an extra stitch. Two patients had wound gaping (6.5%), and 1 patient had a wound infection (3.2%). CONCLUSION Hemophilia is not an absolute contraindication for circumcision. Circumcision of hemophilic children should be performed under appropriate conditions in hemophilia centers. Bleeding is not frequent but could be serious.
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Abstract
We present a case of a healthy male neonate born at term, circumcised on Day 1 of life. Facing ongoing bleeding at the incision site, the baby was transferred to a level III neonatal intensive care unit for further investigation and management. His family history was unremarkable for bleeding disorders. On arrival, the baby was hemodynamically stable with abnormal coagulation values. Further investigations revealed a diagnosis compatible with severe hemophilia A. He deteriorated on Day 2, developing acute severe anemia which required two red blood cell transfusions. This rare but potentially fatal event reminds clinicians to remain extremely vigilant with minor surgical procedures such as circumcision even in the absence of family history.
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Affiliation(s)
- Lars Mense
- Neonatology, University Hospital Carl Gustav Carus, Dresden, DEU
| | | | - Raveena Ramphal
- Haematology / Oncology, Children's Hospital of Eastern Ontario, Ottawa, CAN
| | - Thierry Daboval
- Paediatrics, Children's Hospital of Eastern Ontario, Ottawa, CAN
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Elisa Mancuso M, Santagostino E, Kenet G, Elalfy M, Holzhauer S, Bidlingmaier C, Escuriola Ettingshausen C, Iorio A, Nowak-Göttl U, Marcucci M. Type and intensity of FVIII exposure on inhibitor development in PUPs with haemophilia A. Thromb Haemost 2017; 113:958-67. [DOI: 10.1160/th14-07-0621] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 12/18/2014] [Indexed: 01/13/2023]
Abstract
SummaryThe impact of treatment-related factors on inhibitor development in previously untreated patients (PUPs) with haemophilia A is still debated. We present the results of a collaborative, individual patient data meta-analytic project. Eligible data sources were published cohorts of PUPs for which patient-level data were available. The exposures of interest were factor (F)VIII type (recombinant [rFVIII] vs plasma-derived [pdFVIII]) and treatment intensity (≥ vs < 150 IU/kg/week) at first treatment. Family history of inhibitors, F8 mutations, age, treatment regimen (on-demand vs prophylaxis), secular trend and surgery were analysed as putative confounders using different statistical approaches (multivariable Cox regression, propensity score analyses, CART). Analyses accounted for the multi-centre origin of the data. We included 761 consecutive, unselected PUPs with moderate to severe haemophilia A from 10 centres in Egypt, Germany, Israel and Italy. A total of 27 % of patients developed inhibitors; 40 % and 22 % of patients treated with rFVIII and pdFVIII (unadjusted HR 2.2, 95 % CI 1.6–2.9), respectively; 51 % and 24 % of patients receiving high-and low-intensity treatment (unadjusted HR 2.9, 95 % CI 2.0–4.2), respectively. In adjusted analyses, only treatment intensity remained an independent predictor; the effect of FVIII type was largely due to confounding, but with a significant interaction between FVIII type and treatment intensity. This patient-level meta-analysis confirms, across different statistical approaches, that high-intensity treatment is a strong risk factor for inhibitor development. The possible role of FVIII type in subgroups is suggested by the test for interactions but could not be proven because of the limited subgroups sample sizes.
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Seck M, Sagna A, Guéye MS, Faye BF, Sy D, Touré SA, Sall A, Touré AO, Diop S. Circumcision in hemophilia using low quantity of factor concentrates: experience from Dakar, Senegal. BMC HEMATOLOGY 2017; 17:8. [PMID: 28451435 PMCID: PMC5402675 DOI: 10.1186/s12878-017-0080-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 04/10/2017] [Indexed: 12/27/2022]
Abstract
Background Circumcision in hemophiliacs is a delicate surgery because of bleeding risks that could be avoided by adequate substitution of coagulation factor. This practice is very challenging in countries where anti hemophilic treatment is inaccessible. The study aimed to evaluate a circumcision protocol in hemophilia A using low quantities of factor concentrates. Methods This prospective study included 26 hemophiliacs A who underwent circumcision in 2014. Medical treatment protocol using low quantity of factor concentrates was drafted by physicians of the Hemophilia Treatment Center and the surgical protocol by experienced surgeons. Assessment criteria were: number of hospitalization days, number of exposure days to factor concentrates, delay to healing and occurrence of bleeding events. Results Mean age was 9.6 years (1–30). Hemophiliacs patients were classified as severe (n = 8), moderate (n = 9) and mild form (n = 9). Mean number of exposure days to factor VIII concentrates was 6.9 days (5–12) in children and 10.75 days (7–16) in adults (p = 0.0049); mean number of hospitalization days was 3.68 days (2–10) in children and 13.5 days (13–15) in adults (p = 0.0000); delay to healing was 26.47 days (20–35) in children and 25.25 days (22–30) in adults (p = 0.697); five haemophiliacs (19.2%) presented bleeding events after the circumcision. The mean amount of FIII concentrates used per patient was 1743 IU (810–2340). Conclusion The study shows treatment protocol using low quantity of factor concentrates is efficient in hemophilia patients who underwent circumcision.
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Affiliation(s)
- Moussa Seck
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Aloïse Sagna
- Pediatric Surgical Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Mame Sokhna Guéye
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Blaise Félix Faye
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Diariétou Sy
- Hematology Service, National Blood Transfusion Center, Dakar, BP 5005 Senegal
| | | | - Abibatou Sall
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Awa Oumar Touré
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
| | - Saliou Diop
- Hematology Service, Cheikh Anta Diop University, Dakar, BP 5005 Senegal
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Kearney S, Sharathkumar A, Rodriguez V, Chitlur M, Valentino L, Boggio L, Gill J. Neonatal circumcision in severe haemophilia: a survey of paediatric haematologists at United States Hemophilia Treatment Centers. Haemophilia 2014; 21:52-7. [DOI: 10.1111/hae.12528] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2014] [Indexed: 01/20/2023]
Affiliation(s)
- S. Kearney
- Children's Hospitals and Clinics of Minnesota; Pediatric Hematology Oncology; Minneapolis MN USA
| | - A. Sharathkumar
- Lurie Children's Hospital; Pediatric Hematology Oncology; Chicago IL USA
| | - V. Rodriguez
- Mayo Clinic; Pediatric Hematology Oncology; Rochester MN USA
| | - M. Chitlur
- Children's Hospital of Michigan; Pediatric Hematology Oncology; Detroit MI USA
| | - L. Valentino
- Rush University; Pediatric Hematology Oncology; Chicago IL USA
| | - L. Boggio
- Rush University; Pediatric Hematology Oncology; Chicago IL USA
| | - J. Gill
- Children's Hospital of Wisconsin; Pediatric Hematology Oncology; Milwaulkee WI USA
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