Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Fellowship, Hematology/Oncology, Northwestern University, Feinberg School of Medicine 2010 - 2013
  • M.S., Northwestern University, Feinberg School of Medicine 2013
  • Residency, Internal Medicine, Duke University School of Medicine 2007 - 2010
  • M.D., Duke University School of Medicine 2007
• 

  Previous Appointments & Affiliations

  • Assistant Professor of Medicine, Medicine, Hematology, Medicine 2013 - 2020
• Research
• 

  Selected Grants

  • Developing apheresis-specific outcomes to facilitate a multi-center study of therapeutic plasma exchange in heparin-induced thrombocytopenia awarded by Robert Wood Johnson Foundation 2020 - 2023
  • Sickle Cell Disease and CardiovAscular Risk - Red cell Exchange Trial (SCD-CARRE) awarded by University of Pittsburgh 2020 - 2022
  • American Society for Apheresis (ASFA) Heparin Induced Thrombocytopenia Registry awarded by American Society for Apheresis 2019 - 2020
  • Defining the role of therapeutic plasma exchange in heparin induced thrombocytopenia awarded by Hemophilia & Thrombosis Research Society 2017 - 2020
  • Core Clinical Centers for the CTSN awarded by National Institutes of Health 2007 - 2018
  • Cellular Basis of HIT Immune Response in Cardiac Surgery awarded by Children's Hospital of Philadelphia 2012 - 2017
  • Population-based Surveillance And Outcomes of Venous Thromboembolism awarded by Centers for Disease Control and Prevention 2012 - 2015
• 

  External Relationships

  • American Society for Apheresis
  • Augusta Health
  • Coag Coach (Onwuemene Publishing Group)
  • Sanofi Genzyme
  • The American Society of Hematology (ASH)
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Wanjiku, Christopher, Lara Carine Wadi, Shreyansh Shah, and Oluwatoyosi A. Onwuemene. “Recurrent Cryptogenic Stroke in a Young Woman: Congenital Thrombotic Thrombocytopenic Purpura Unmasked.” Annals of Internal Medicine: Clinical Cases 1, no. 10 (December 1, 2022). https://doi.org/10.7326/aimcc.2022.0689.
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    • Pohlman, F Will, Daniel J. Minter, Hayley E. Cunningham, Katherine DiNardo, and Oluwatoyosi A. Onwuemene. “Coagulation Conundrum: an Exercise in Clinical Reasoning.” J Gen Intern Med, November 28, 2022. https://doi.org/10.1007/s11606-022-07971-x.
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    • Onwuemene, Oluwatoyosi A., Chizoba I. Nnoruka, Christopher J. Patriquin, and Laura S. Connelly-Smith. “Therapeutic plasma exchange in the management of immune checkpoint inhibitor-associated immune-related adverse effects: A review.” Transfusion 62, no. 11 (November 2022): 2370–90. https://doi.org/10.1111/trf.17114.
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    • Soares Ferreira Júnior, Alexandre, Stephen H. Boyle, Maragatha Kuchibhatla, and Oluwatoyosi A. Onwuemene. “Central venous catheters are associated with thrombosis among adult inpatients undergoing therapeutic plasma exchange.” J Clin Apher 37, no. 4 (August 2022): 340–47. https://doi.org/10.1002/jca.21975.
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    • Soares Ferreira Júnior, Alexandre, Kimberly Hodulik, Karen D. Barton, and Oluwatoyosi A. Onwuemene. “Hemostatic effects of therapeutic plasma exchange: A concise review.” J Clin Apher 37, no. 3 (June 2022): 292–312. https://doi.org/10.1002/jca.21973.
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    • Soares Ferreira Júnior, Alexandre, Stephen H. Boyle, Maragatha Kuchibhatla, and Oluwatoyosi A. Onwuemene. “Bleeding outcomes of inpatients receiving therapeutic plasma exchange: A propensity-matched analysis of the National Inpatient Sample.” Transfusion 62, no. 2 (February 2022): 386–95. https://doi.org/10.1111/trf.16769.
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    • Isaacs, James, Ian J. Welsby, Jacob N. Schroder, and Oluwatoyosi A. Onwuemene. “Activated Coagulation Time and Hepcon Protamine Titration Device to Manage Unfractionated Heparin During Cardiopulmonary Bypass in a Hemophilia A Patient on Emicizumab.” J Cardiothorac Vasc Anesth 35, no. 11 (November 2021): 3299–3302. https://doi.org/10.1053/j.jvca.2020.08.058.
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    • Soares Ferreira Júnior, Alexandre, Stephen H. Boyle, Maragatha Kuchibhatla, and Oluwatoyosi A. Onwuemene. “Bleeding is associated with intravenous immunoglobulin and therapeutic plasma exchange use in heparin-induced thrombocytopenia: A propensity matched analysis.” Ejhaem 2, no. 3 (August 2021): 466–70. https://doi.org/10.1002/jha2.211.
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    • Shah, Kunal, Ashley Hanlon, and Oluwatoyosi A. Onwuemene. “Sometimes it is Not as Simple as Sepsis: An Unusual Cause of Coagulopathy.” Am J Med 134, no. 7 (July 2021): e409–11. https://doi.org/10.1016/j.amjmed.2020.12.020.
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    • Soares Ferreira Júnior, Alexandre, Stephen H. Boyle, Maragatha Kuchibhatla, Tomi Akinyemiju, and Oluwatoyosi A. Onwuemene. “Use of therapeutic plasma exchange in heparin-induced thrombocytopenia: A population-based study.” J Clin Apher 36, no. 3 (June 2021): 398–407. https://doi.org/10.1002/jca.21876.
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    • Soares Ferreira Júnior, Alexandre, Stephen H. Boyle, Maragatha Kuchibhatla, and Oluwatoyosi A. Onwuemene. “A population-based analysis on the use of therapeutic plasma exchange and intravenous immunoglobulin in heparin-induced thrombocytopenia.” Thromb Res 201 (May 2021): 6–14. https://doi.org/10.1016/j.thromres.2021.02.017.
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    • Moreno-Duarte, Ingrid, Mary Cooter, Oluwatoyosi A. Onwuemene, Kamrouz Ghadimi, and Ian J. Welsby. “Clinical outcomes of cardiac surgery patients undergoing therapeutic plasma exchange for heparin-induced thrombocytopenia.” Vox Sang 116, no. 2 (February 2021): 217–24. https://doi.org/10.1111/vox.13008.
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    • Gill, Janique C., Darlene J. Oakley, and Oluwatoyosi A. Onwuemene. “Strategies to Aid Identification of Apheresis PowerFlow Ports: A Case Report.” J Emerg Nurs 47, no. 1 (January 2021): 21–27. https://doi.org/10.1016/j.jen.2020.10.004.
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    • Onuoha, Chinonso, Karen D. Barton, Edward C. C. Wong, Jay S. Raval, Marian A. Rollins-Raval, Tina S. Ipe, Joseph E. Kiss, et al. “Therapeutic plasma exchange and intravenous immune globulin in the treatment of heparin-induced thrombocytopenia: A systematic review.” Transfusion 60, no. 11 (November 2020): 2714–36. https://doi.org/10.1111/trf.16018.
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    • Onwuemene, Oluwatoyosi A., Nicole D. Zantek, Marian A. Rollins-Raval, Jay S. Raval, Joseph E. Kiss, Tina S. Ipe, Maragatha Kuchibhatla, Monica B. Pagano, and Edward C. C. Wong. “Therapeutic plasma exchange for management of heparin-induced thrombocytopenia: Results of an international practice survey.” J Clin Apher 34, no. 5 (October 2019): 545–54. https://doi.org/10.1002/jca.21709.
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    • Hodulik, Kimberly L., Adam G. Root, Leila S. Ledbetter, and Oluwatoyosi A. Onwuemene. “Effects of therapeutic plasma exchange on anticoagulants in patients receiving therapeutic anticoagulation: a systematic review.” Transfusion 59, no. 5 (May 2019): 1870–79. https://doi.org/10.1111/trf.15191.
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    • Cates, Nancy C., Darlene J. Oakley, and Oluwatoyosi A. Onwuemene. “Therapeutic white blood cell and platelet depletions using the spectra OPTIA system continuous mononuclear cell protocol.” J Clin Apher 33, no. 5 (October 2018): 580–85. https://doi.org/10.1002/jca.21644.
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    • Onwuemene, Oluwatoyosi A., Steven C. Grambow, Chetan B. Patel, Robert J. Mentz, Carmelo A. Milano, Joseph G. Rogers, Ara D. Metjian, Gowthami M. Arepally, and Thomas L. Ortel. “Indications for and outcomes of therapeutic plasma exchange after cardiac transplantation: A single center retrospective study.” J Clin Apher 33, no. 4 (August 2018): 469–79. https://doi.org/10.1002/jca.21622.
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    • Bittar, Peter G., Myles S. Nickolich, and Oluwatoyosi A. Onwuemene. “ASFA Category IV becomes Category I: Idiopathic thrombotic thrombocytopenic purpura in a patient with presumed gemcitabine-induced thrombotic microangiopathy.” J Clin Apher 33, no. 3 (June 2018): 423–26. https://doi.org/10.1002/jca.21590.
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    • Abbes, Sarah, Ara Metjian, Alice Gray, Tereza Martinu, Laurie Snyder, Dong-Feng Chen, Matthew Ellis, Gowthami M. Arepally, and Oluwatoyosi Onwuemene. “Human Leukocyte Antigen Sensitization in Solid Organ Transplantation: A Primer on Terminology, Testing, and Clinical Significance for the Apheresis Practitioner.” Ther Apher Dial 21, no. 5 (October 2017): 441–50. https://doi.org/10.1111/1744-9987.12570.
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    • Onwuemene, Oluwatoyosi A., Deneen M. Heath, Carol Hartman, and Edward C. C. Wong. “Role of C1q complement fixing antibody assay in therapeutic plasma exchange management of pediatric cardiac antibody mediated rejection.” J Clin Apher 32, no. 4 (August 2017): 279–81. https://doi.org/10.1002/jca.21488.
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    • Vacha, Mary, Godefroy Chery, Amanda Hulbert, Jennifer Byrns, Clark Benedetti, Catherine Ashley Finlen Copeland, Alice Gray, Oluwatoyosi Onwuemene, Scott M. Palmer, and Laurie D. Snyder. “Antibody depletion strategy for the treatment of suspected antibody-mediated rejection in lung transplant recipients: Does it work?” Clin Transplant 31, no. 3 (March 2017). https://doi.org/10.1111/ctr.12886.
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    • Onwuemene, Oluwatoyosi, and Gowthami M. Arepally. “Heparin-induced thrombocytopenia: research and clinical updates.” Hematology Am Soc Hematol Educ Program 2016, no. 1 (December 2, 2016): 262–68. https://doi.org/10.1182/asheducation-2016.1.262.
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    • Metjian, Ara, Yvette C. Tanhehco, Nicole Aqui, Vijay G. Bhoj, Lita Jamensky, Marisa B. Marques, Oluwatoyosi Onwuemene, Huy P. Pham, and Gowthami M. Arepally. “The thrombotic microangiopathy Registry of North America: A United States multi-institutional TMA network.” J Clin Apher 31, no. 5 (October 2016): 448–53. https://doi.org/10.1002/jca.21437.
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    • Baumann Kreuziger, Lisa, Oluwatoyosi Onwuemene, Emma Kolesar, Mark Crowther, and Wendy Lim. “Systematic review of anticoagulant treatment of catheter-related thrombosis.” Thromb Res 136, no. 6 (December 2015): 1103–9. https://doi.org/10.1016/j.thromres.2015.08.020.
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    • Huang, Li-Wen, Sarah Anand, Syed Hassan, and Oluwatoyosi Onwuemene. “Bruised Black and Blue: Acquired Hypoprothrombinemia.” Am J Med 128, no. 11 (November 2015): e7–11. https://doi.org/10.1016/j.amjmed.2015.06.011.
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    • Onwuemene, Oluwatoyosi, David Green, and Louis Keith. “Postpartum hemorrhage management in 2012: predicting the future.” Int J Gynaecol Obstet 119, no. 1 (October 2012): 3–5. https://doi.org/10.1016/j.ijgo.2012.07.001.
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    • Zhang, Junan, Q Jackie Wu, Devon J. Godfrey, Toyosi Fatunase, Lawrence B. Marks, and Fang-Fang Yin. “Comparing digital tomosynthesis to cone-beam CT for position verification in patients undergoing partial breast irradiation.” Int J Radiat Oncol Biol Phys 73, no. 3 (March 1, 2009): 952–57. https://doi.org/10.1016/j.ijrobp.2008.10.036.
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    • Fatunase, Toyosi, Zhiheng Wang, Sua Yoo, Jessica L. Hubbs, Robert G. Prosnitz, Fang-Fang Yin, and Lawrence B. Marks. “Assessment of the residual error in soft tissue setup in patients undergoing partial breast irradiation: results of a prospective study using cone-beam computed tomography.” Int J Radiat Oncol Biol Phys 70, no. 4 (March 15, 2008): 1025–34. https://doi.org/10.1016/j.ijrobp.2007.07.2344.
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    • Mao, Jingfang, Oluwatoyosi A. Fatunase, and Lawrence B. Marks. “Cytoprotection for radiation-associated normal tissue injury.” Cancer Treat Res 139 (2008): 307–27.
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  • Conference Papers

    • Yentz, Sarah, Oluwatoyosi A. Onwuemene, Brady L. Stein, Elizabeth H. Cull, and Brandon McMahon. “Clinical Use of Anti-Xa Monitoring in Malignancy-Associated Thrombosis.” In Thrombosis, 2015:126975, 2015. https://doi.org/10.1155/2015/126975.
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    • Adekola, Kehinde U. A., John P. Galvin, Vaibhav Sahai, Oluwatoyosi A. Onwuemene, Joanne Monreal, John Cashy, and Jayesh Mehta. “An Institutional Experience: Correlation Between Absolute Lymphocyte Count and Survival Outcome After Reduced Intensity Conditioning Allogeneic Stem Cell Transplant in Patients with Hematologic Malignancies.” In Blood, 120:4541–4541. American Society of Hematology, 2012. https://doi.org/10.1182/blood.v120.21.4541.4541.
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    • Hubbs, J. L., T. Fatunase, D. R. Hollis, R. W. Clough, C. R. Kelsey, T. A. D’Amico, and L. B. Marks. “Stage and Treatment Migration in Patients With Stage III Non-Small Cell Lung Cancer.” In International Journal of Radiation Oncology*Biology*Physics, 69:S159–60. Elsevier BV, 2007. https://doi.org/10.1016/j.ijrobp.2007.07.288.
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    • Mbibi, O., O. Craciunescu, T. Fatunase, L. Marks, and F. Yin. “SU‐FF‐J‐105: Predicting Late Skin Effects Using Digital Infrared Imaging for Breast Cancer Patients Treated with Radiation.” In Medical Physics, 34:2392, 2007. https://doi.org/10.1118/1.2760610.
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    • Fatunase, T., Z. Wang, S. Yoo, R. Prosnitz, F. Yin, and L. Marks. “2736.” In International Journal of Radiation Oncology*Biology*Physics, 66:S620–S620. Elsevier BV, 2006. https://doi.org/10.1016/j.ijrobp.2006.07.1152.
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    • Fatunase, T., Z. Wang, S. Yoo, F. Yin, and L. Marks. “SU‐FF‐I‐17: Reduction of Set‐Up Error Using Cone Beam‐CT in Patients Undergoing Partial Breast Irradiation.” In Medical Physics, 33:2000, 2006. https://doi.org/10.1118/1.2240255.
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    • Mbibi, O., O. Craciunescu, T. Fatunase, L. Marks, and F. Yin. “SU‐DD‐A4‐01: Quantifying Skin Effects After Accelerated Partial Breast Irradiation Using Digital Infrared Imaging (DII): Preliminary Feasibility Data.” In Medical Physics, 33:1989, 2006. https://doi.org/10.1118/1.2240149.
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• Scholarly, Clinical, & Service Activities
• 

  Service to the Profession

  • Participant. Faculty Success Program. National Cener for Faculty Development & Diversity (NCFDD). 2019  2019

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