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Ward Hagar · SciRah

Researcher profile · Semantic Scholar

Ward Hagar

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Ward Hagar — researcher profile on SciRah

h-index: 14
Works: 41
Citations: 1,467

Most-cited papers

Arginine therapy: a new treatment for pulmonary hypertension in sickle cell disease?
C. Morris, S. Morris, Ward Hagar, Jane van Warmerdam +5 more
2003American Journal of Respiratory and Critical Care Medicine341 citations
Semantic Scholar
Beyond the Definitions of the Phenotypic Complications of Sickle Cell Disease: An Update on Management
S. Ballas, M. Kesen, M. Goldberg, G. Lutty +7 more
2012TheScientificWorldJournal183 citations Open access
Semantic Scholar
Morbidity and mortality in chronically transfused subjects with thalassemia and sickle cell disease: A report from the multi‐center study of iron overload
E. Fung, P. Harmatz, Meredith Milet, S. Ballas +8 more
2007American journal of hematology/oncology166 citations Open access
Semantic Scholar
Erythrocyte glutamine depletion, altered redox environment, and pulmonary hypertension in sickle cell disease.
C. Morris, Jung H. Suh, Ward Hagar, Sandra Larkin +7 more
2008Blood106 citations Open access
Semantic Scholar
Defining Sickle Cell Disease Mortality Using a Population-Based Surveillance System, 2004 through 2008
Susan T. Paulukonis, J. Eckman, A. Snyder, Ward Hagar +4 more
2016Public health reports (1974)86 citations Open access
Semantic Scholar
The third described case of transfusion‐transmitted Babesia duncani
E. Bloch, B. Herwaldt, D. Leiby, A. Shaieb +11 more
2012Transfusion81 citations
Semantic Scholar
Lower alloimmunization rates in pediatric sickle cell patients on chronic erythrocytapheresis compared to chronic simple transfusions
S. Wahl, A. Garcia, Ward Hagar, G. Gildengorin +2 more
2012Transfusion79 citations
Semantic Scholar
A potent oral P‐selectin blocking agent improves microcirculatory blood flow and a marker of endothelial cell injury in patients with sickle cell disease
A. Kutlar, K. Ataga, Lillian Mcmahon, J. Howard +6 more
2012American journal of hematology/oncology78 citations Open access
Semantic Scholar
A pilot study of the short-term use of simvastatin in sickle cell disease: effects on markers of vascular dysfunction
C. Hoppe, F. Kuypers, Sandra Larkin, Ward Hagar +2 more
2011British Journal of Haematology78 citations Open access
Semantic Scholar
Effect of Inhaled Cannabis for Pain in Adults With Sickle Cell Disease
D. Abrams, P. Couey, N. Dixit, Varun Sagi +5 more
2020JAMA Network Open62 citations Open access
Semantic Scholar
Advances in clinical research in sickle cell disease
Ward Hagar, E. Vichinsky
2008British Journal of Haematology48 citations Open access
Semantic Scholar
IRON HOMEOSTASIS DURING TRANSFUSIONAL IRON OVERLOAD IN β-THALASSEMIA AND SICKLE CELL DISEASE: Changes in Iron Regulatory Protein, Hepcidin, and Ferritin Expression
Z. Jenkins, Ward Hagar, C. Bowlus, Hans E. Johansson +3 more
2007Pediatric Hematology & Oncology39 citations
Semantic Scholar
Biopsychosocial Factors Associated With Pain and Pain-Related Outcomes in Adults and Children With Sickle Cell Disease: A Multivariable Analysis of the GRNDaD Multicenter Registry
Martha O. Kenney, Samuel R Wilson, N. Shah, A. Bortsov +12 more
2023Journal of Pain24 citations Open access
Semantic Scholar
Diseases of iron metabolism.
Ward Hagar, Elizabeth C. Theil, E. Vichinsky
2002The Pediatric clinics of North America24 citations
Semantic Scholar
Influence of sickle cell disease on susceptibility to HIV infection
S. Kelly, Evan S. Jacobs, M. Stone, S. Keating +10 more
2020PLoS ONE13 citations Open access
Semantic Scholar
Riociguat in patients with sickle cell disease and hypertension or proteinuria (STERIO-SCD): a randomised, double-blind, placebo controlled, phase 1–2 trial
M. Gladwin, V. Gordeuk, P. Desai, C. Minniti +25 more
2024The Lancet Haematology12 citations
Semantic Scholar
Liver Ferritin Subunit Ratios in Neonatal Hemochromatosis
Ward Hagar, E. Vichinsky, Elizabeth C. Theil
2003Pediatric Hematology & Oncology9 citations
Semantic Scholar
Characterizing the Prevalence of Overweight and Obese Status Among Adults with Sickle Cell Disease
Stephanie O. Ibemere, Charity I. Oyedeji, L. Preiss, L. Van Althuis +12 more
2022British Journal of Haematology8 citations
Semantic Scholar
Anti-Oxidant Treatment with α-Lipoic Acid and Acetyl L-Carnitine in Hemoglobinopathies.
A. Lal, Jung H. Suh, Wafa Atamna, Bridget Canty +4 more
20077 citations
Semantic Scholar
Pulmonary Hypertension in Sickle Cell Disease: A Common Complication for Both Adults and Children.
C. Morris, J. Gardner, Ward Hagar, E. Vichinsky
20046 citations
Semantic Scholar
Identifying distinct subgroups with severe pain in sickle cell disease: A cluster analysis of the GRNDaD multi-center registry
Martha O. Kenney, Samuel Wilson, Morgan Rosser, Sophie Lanzkron +9 more
2025PLoS ONE3 citations Open access
Semantic Scholar
Adults with Sickle‐Cell Disease: Implications of Increasing Longevity
Ward Hagar, C. Morris
20113 citations
Semantic Scholar
Mortality Among Women with Sickle Cell Disease Admitted for Delivery, California 2004-2014
Faith S. Raider, Susan T. Paulukonis, Ward Hagar, M. Treadwell +1 more
20162 citations
Semantic Scholar
Erratum to “Beyond the Definitions of the Phenotypic Complications of Sickle Cell Disease: An Update on Management”
S. Ballas, M. Kesen, M. Goldberg, G. Lutty +7 more
2013The Scientific World Journal2 citations Open access
Semantic Scholar
Abnormal Pulmonary Function in Adults and Children with Sickle Cell Disease.
C. Morris, J. Gardner, A. Wen, S. Robertson +2 more
20052 citations
Semantic Scholar
Role of Menstrual Bleeding Assessments in Sickle Cell Clinics
Gillian Rush, R. E. Mohamed, Kim Moffatt-Bazile, Sri Lakshmi Jamalapur +20 more
2025JAMA Network Open1 citations Open access
Semantic Scholar
Adjuvant low‐dose ketamine for paediatric and young adult sickle cell vaso‐occlusive episodes in the emergency department
J. Cooper-Sood, Ward Hagar, A. Marsh, C. Hoppe +1 more
2022British Journal of Haematology1 citations
Semantic Scholar
Evaluation of Mandible Fractures in Patients With Sickle Cell Anemia-A Nationwide Study.
M. Akbari, Riddhi M. Patel, V. Carrao, Ward Hagar +2 more
2019Journal of oral and maxillofacial surgery1 citations
Semantic Scholar
pulmonary hypertension in sickle cell disease Erythrocyte glutamine depletion, altered redox environment, and
E. Vichinsky, M. Shigenaga, B. Ames, F. Kuypers +7 more
20091 citations
Semantic Scholar
Long-term use of hydroxyurea for sickle cell anemia.
Ward Hagar
2003Journal of the American Medical Association (JAMA)1 citations
Semantic Scholar
A - 87 Exploring the Utility of the Montreal Cognitive Assessment to Identify Neurocognitive Deficits among Adult Patients with Sickle Cell Disease
S. Ulloa, T. Wong, Huan Luo, Sile Bao +5 more
2024Archives of Clinical Neuropsychology0 citations
Semantic Scholar
Adjuvant low-dose ketamine for pediatric sickle cell vaso-occlusive episodes in the emergency department
J. Cooper-Sood, Ward Hagar, A. Marsh, C. Hoppe +1 more
20200 citations Open access
Semantic Scholar
ferent mortality rate than those with the lowest levels of neu- trophil counts.
Lawrence E. Feldman, S. Allen, M. Westerman, L. Feldman +3 more
20160 citations
Semantic Scholar
Hospitalization for Acute Pain in Sickle Cell Disease: Changes in Clinical Parameters and Factors Predicting Hospital Discharge and Re-Admission
M. Nouraie, D. Weiner, M. Hildesheim, Ward Hagar +6 more
20160 citations
Semantic Scholar
A Comparison of Hematologic Parameters in Patients with Sickle Cell Disease Undergoing Red Cell Exchange Using Terumo BCT Spectra Optia and COBE Spectra Apheresis Systems
N. Lalefar, Ward Hagar
20150 citations Open access
Semantic Scholar
Low Erythrocyte Glutamine-to-Glutamate Ratio: A Novel Biomarker of Hemolysis and Pulmonary Hypertension in Sickle Cell Disease.
C. Morris, Jung H. Suh, Ward Hagar, Sandra Larkin +7 more
20070 citations
Semantic Scholar
High Frequency of Asthma, Sepsis and Acute Chest Syndrome in Children with Sickle Cell Disease and Pulmonary Hypertension.
C. Morris, Ward Hagar, J. Gardner, Jennifer Michlitsch +1 more
20070 citations
Semantic Scholar
Hospitalization Rate and Regional Differences in Comprehensive Care in Transfused Patients with Sickle Cell Disease Compared to Thalassemia: A Report from the Multi-Center Study of Iron Overload.
E. Fung, P. Harmatz, Meredith Milet, S. Ballas +6 more
20050 citations
Semantic Scholar
Pulmonary Hypertension: A Common Complication in Thalassemia.
E. Vichinsky, C. Morris, Ward Hagar, J. Gardner +3 more
20040 citations
Semantic Scholar
Long-term use of hydroxyurea for sickle cell anemia. Authors' reply
D. Spell, Lawrence E. Feldman, S. Allen, M. Westerman +11 more
20030 citations
Semantic Scholar
Lack of hepatic ferritin or hepatic iron elevation compared to controls in a newborn diagnosed during life with neonatal hemochromatosis
Ward Hagar, E. Vichinsky, E. Manci, Elizabeth C. Theil
20000 citations
Semantic Scholar

Frequent co-authors

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E. Vichinsky×21
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E. Vichinsky — researcher profile on SciRah
C. Morris×9
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C. Morris — researcher profile on SciRah
F. Kuypers×5
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F. Kuypers — researcher profile on SciRah
C. Hoppe×5
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C. Hoppe — researcher profile on SciRah

×4

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Jung H. Suh — researcher profile on SciRah

Sandra Larkin×4

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Sandra Larkin — researcher profile on SciRah

M. Steinberg×4

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M. Steinberg — researcher profile on SciRah

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B. Ames — researcher profile on SciRah

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E. Klings — researcher profile on SciRah

Elizabeth C. Theil×4

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Elizabeth C. Theil — researcher profile on SciRah

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J. Gardner — researcher profile on SciRah

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S. Ballas — researcher profile on SciRah