Obi Ekwenna
- Tenured Associate Professor Urology and Transplantation, Urology , College of Medicine and Life Sciences
Contact Info
Overview
overview
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Dr. Obi Ekwenna is a Tenured Associate Professor in the Department of Urology and Renal Transplantation in the College of Medicine and Life Sciences located in Toledo, Ohio.
He earned his bachelor’s degree from the University of California Berkeley and his medical degree from the University of Illinois, Chicago. He completed his urology residency program at the University of Miami’s Miller School of Medicine in Miami Florida. Dr. Ekwenna also completed a two-year abdominal transplant fellowship at the University of Miami – Miami Transplant Institute. He is certified as an abdominal transplant surgeon by the American Board of Urology and the American Society of Transplantation.
Dr. Ekwenna’s special interests include renal transplantation and pancreas transplantation; general urology; minimally-invasive surgery; robotics, and genitourinary oncology. His research interests include clinical outcomes in renal transplantation; paired donation and kidney exchange; global kidney exchange; overcoming barriers to transplantation; access and outcomes to renal transplantation in resource-limited environments; biomarkers in acute and chronic rejection, and surgical education and capacity building, global surgery.
Publications
selected publications
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Article (Faculty180)
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2025Associations between donor-derived cell-free DNA dynamics and clinical outcomes after kidney allograft rejection: A prospective, multicenter study. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons.
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2025Dual Kidney Transplant From a Donor With Alport Syndrome in a Genotypically Normal Recipient. Transplantation direct. 11:e1747.
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2025Renal Transplantation in Patients With Urinary Diversion-Bypassing the Conduit: A Case Report. Case reports in transplantation. 2025:6764308.
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2025Successful Kidney Transplant From a Donor With Marfan Syndrome: A Case Report. Transplantation proceedings. 57:97-99.
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2024A Comprehensive Analysis of Litigation in Organ Transplantation for Allegations of Insufficient Policy Coverage, Discrimination and Malpractice. Progress in transplantation (Aliso Viejo, Calif.). 34:11-19.
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2024Editorial Comment on "Robotic-assited Laparoscopic Repair of Kidney Transplant Ureteral Strictures.". Urology . 13:S0090-4295:00458-8.
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2024Feasibility of transplantation of pediatric en-bloc kisnets with AKI. American Journal of Transplantation . 24:S27.
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2024Hospitalization Rates for Cerebral Ischemic and Hemorage Events in KiTx Patients with PVD: A National Inpatient Sample Analysis. American Journal of Transplantation . 24:S22.
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2024
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2023A Quality Analysis of Donor Nephrectomy-Related Information on YouTube; Education or Misinformation?. Transplantation proceedings. 55:2041-2045.
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2023Cytomegalovirus Infection In Renal Transplant Recipients Converted to Belatacept Following Alemtuzumab Induction. American Journal of Transplantation . 23:S450.
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2023Demographic Inequities in Liver Transplantation for Acute Alcoholic Hepatitis. American Journal of Transplantation . 23:S1194.
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2023Demographic inequities exist and influence transplant outcomes in liver transplantation for acute alcohol-associated hepatitis. HPB : the official journal of the International Hepato Pancreato Biliary Association. 25:845-854.
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2023Insurance Type and Gut Microbiome Diversity of Kidney Transplant Recipients. American Journal of Transplantation . 23:S891.
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2023Patient-reported disruptions to cancer care during the COVID-19 pandemic: A national cross-sectional study. Cancer medicine. 12:4773-4785.
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2023Quantifying mortality burden in patients with cancer due to COVID-19 in the US: A national cross-sectional analysis. Cancer medicine. 12:17413-17417.
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2023Quantifying the Relationship Between Tacrolimus Dose and Post-Transplant Relative Abundance of Clostridiodes Difficile in Kidney Transplant Recipients with Similar Metabolism Based on Identical CYP3A5 Variants. American Journal of Transplantation . 23:S356-S357.
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2023Starting Successfully: Steps in Establishing robotic Kidney Transplantation Program with Early Outcomes. American Journal of Transplant. 23:S1132-S1133.
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2023
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2022A Payer's Perspective: A Comparison and Simulation of the Costs of Hemodialysis Versus Living Donor Kidney Transplant for Patients With End-Stage Renal Disease in Nigeria. Transplant international : official journal of the European Society for Organ Transplantation. 35:10662.
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2022Conservative Management of Muscle Invasive Bladder Cancer in Kidney-Pancreas Transplant Patient. Case reports in transplantation. 2022:5373414.
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2022Endovascular control during partial nephrectomy in a renal allograft. Indian journal of urology : IJU : journal of the Urological Society of India. 38:227-229.
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2022Global Trends in Incidence and Burden of Urolithiasis from 1990 to 2019: An Analysis of Global Burden of Disease Study Data. European urology open science. 35:37-46.
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2022Improving Access to HLA-Matched Kidney Transplants for African American Patients. Frontiers in immunology. 13:832488.
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2022Serum bilirubin as a predictor of graft outcomes after renal transplant. American journal of clinical and experimental urology. 10:37-43.
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2022The Sun Is Still Shining: Nature of Industry Payments to Transplant Surgeons From 2014 to 2019. Transplantation direct. 8:e1325.
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2022Trends in female representation in gastroenterology fellowships in the United States. Annals of gastroenterology. 35:577-583.
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2021APOL1 screening of potential living kidney donors in resource-limited countries: an initial experience in Antigua & Barbuda and Nigeria. Transplant international : official journal of the European Society for Organ Transplantation. 34:590-592.
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2021Risk factors for delayed graft function and their impact on graft outcomes in live donor kidney transplantation. International urology and nephrology. 53:439-446.
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2021Robotic stapler use: Is it safe?-FDA database analysis across multiple surgical specialties. PloS one. 16:e0253548.
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2021Trends in Race and Ethnicity Among Matriculants to US Oncology Training Programs, 2015-2020. JAMA network open. 4:e2128530.
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2021Underrepresented minority representation trends in gynecologic oncology fellowships in the United States. Gynecologic oncology. 160:485-491.
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2020Global Kidney Exchange Should Expand Wisely. Transplant international : official journal of the European Society for Organ Transplantation.
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2020Intra-arterial hemodynamics to guide the percutaneous treatment of a difficult to engage transplant renal artery stenosis. Cardiovascular revascularization medicine : including molecular interventions.
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2020Kidney Transplants From a Deceased Donor After 11 Days of Venovenous Hemodialysis. Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation.
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2020Robotic-assisted Donor Nephrectomy: As Safe as Laparoscopic Donor Nephrectomy. Surgical technology international. 37.
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2020Role of Synthetic Mesh Renorrhaphy and Neocapsule Reconstruction to Salvage Posttransplant Severely Damaged Renal Allografts. Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation.
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2018Alemtuzumab Induction as a Mediator of Nonadherence in Renal Transplantation. American Transplant Congress.
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2018Complete Chain of the First Global Kidney Exchange Transplant and 3-yr Follow-up. European urology focus.
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2018Complete Chain of the First Global Kidney Exchange Transplant and 3-yr Follow-up. European urology focus. 4:190-197.
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2018Impact of Immunogenicity on kidney allograft survival in patients treated with induction therapy. American Transplant Congress.
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2018Initial Experience with the Use of a Robotic Stapler for Robot-Assisted Donor Nephrectomy. Journal of endourology. 32:1054-1057.
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2018Initial Experience with the Use of a Robotic Stapler for Robotic-Assisted Donor Nephrectomy. Journal of endourology.
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2018Issues of Chronic Kidney Disease (CKD) and End Stage Kidney Disease (ESKD) in Southeastern Nigeria A Study of Patients on Dialysis. International Journal of Public Health & Safety. 3.
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2018Issues of Chronic Kidney Disease (CKD) and End Stage Kidney Disease (ESKD) in Southeastern Nigeria: A Study of Patients on Dialysis. International Journal of Public Health & Safety. Volume 3 :158.
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2018New Frontiers in Transplantation and Stem Cell Technology: A Brief Synopsis. Open Journal of Organ Transplant Surgery. 8:13.
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2018PD25-06 GLOBAL KIDNEY EXCHANGE: AN INTERNATIONAL APPROACH TO EXPANDING LIVING DONOR KIDNEY TRANSPLANTATION IN MINORITY GROUPS. The Journal of Urology. 199:e548.
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2017Global kidney exchange: Financially incompatible pairs are not transplantable compatible pairs. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons. 17:2743-2744.
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2017Kidney Exchange to Overcome Financial Barriers to Kidney Transplantation. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons. 17:782-790.
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2017Kidney exchange to overcome financial barriers to kidney transplantation. American Journal of Transplantation. 17:782.
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2017MP30-10 Global Kidney Exchange: Striving For Trifecta Outcomes in Management of Kidney Failure. The Journal of Urology. 197:e393.
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2017People should not be banned from transplantation only because of their country of origin. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons. 17:2747-2748.
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2017Reactions and Comments GKE Has Received. Global Kidney Exchange: Analysis and Background Papers From the Perspective of the Right to Health. 48.
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2016One-step synthesis of water-soluble MoS2 quantum dots via a hydrothermal method as a fluorescent probe for hyaluronidase detection. ACS applied materials & interfaces. 8:11272.
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2016Pediatric liver transplantation: predictors of survival and resource utilization. Pediatric surgery international. 32:439-49.
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2014Bioengineered 3D brain tumor model to elucidate the effects of matrix stiffness on glioblastoma cell behavior using PEG-based hydrogels. Molecular pharmaceutics. 11:2115.
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2014Everolimus with low-dose tacrolimus in simultaneous pancreas and kidney transplantation. Clinical transplantation. 28:797-801.
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2014
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2014The Use of Living Donor Kidneys with Small Renal Cell Carcinoma in Transplantation: abstract# P-1. American Journal of Transplantation. 14:69.
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2014The Use of Living Donor Kidneys with Small Renal Cell Carcinoma in Transplantation: abstract# P-1. American Journal of Transplantation. 14:69.
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2013
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2013Cavernosoma Transformation of the Portal Vein Associated with Post-neoadjuvant Chemotherapy in Hepatoblastoma Patients; a Rare Entity and Transplantation Dilemma: abstract# P-46. American Journal of Transplantation. 13:83.
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2013Cavernosoma Transformation of the Portal Vein Associated with Post-neoadjuvant Chemotherapy in Hepatoblastoma Patients; a Rare Entity and Transplantation Dilemma: abstract# P-46. American Journal of Transplantation. 13:83.
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2013Feasibility of renal transplantation after unroofing of a large renal cyst in an expanded criteria donor. Urology annals. 5:206-8.
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2013Instrumentation and technique: hyperthermal ablation: radiofrequency and microwave ablation. Percutaneous Renal Surgery. 237.
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20122272 Rhabdomyolysis with Acute Renall Failure in Decreased Donors is Not a Contraindication for Kidney Donation. The Journal of Urology. 187:e916.
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2012Active surveillance for low-risk prostate cancer: knowledge, acceptance and practice among urologists. Prostate cancer and prostatic diseases. 15:177-81.
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2012CXCR7: A Functionally Associated Molecular Marker for Bladder Cancer. Cancer. 119:61-71.
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2012Percutaneous Radiofrequency Ablation of Kidney Tumors. Smith's Textbook of Endourology. 1342.
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2012
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2012Rhabdomyolysis with acute kidney injury in deceased donors is not a contraindication for kidney donation. International urology and nephrology. 44:1107-11.
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20111354 Chemokine SDF1-B and Receptor CXCR7: Functionally Associated Molecular Markers For Bladder Cancer Diagnosis and Prognosis. The Journal of Urology. 185:e540.
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2011Inverted nutcracker syndrome: a case of persistent hematuria and pain in the presence of a left-sided inferior vena cava. TheScientificWorldJournal. 11:1031-5.
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2011Laparoscopic and image-guided radiofrequency ablation of renal tumors: patient selection and outcomes. Current urology reports. 12:100-6.
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2011
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2009Spontaneous vaginal drainage of a pelvic abscess: an unusual presentation of perforated appendicitis. Pediatric emergency care. 25:856-8.
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2008Diagnostic yield of renal biopsy immediately prior to laparoscopic radiofrequency ablation: a multicenter study. Journal of endourology. 22:2291.
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2002NPK1, an MEKK1-like mitogen-activated protein kinase kinase kinase, regulates innate immunity and development in plants. Developmental cell. 3:291-7.
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Kidney Exchange to Overcome Financial Barriers to Kidney Transplantation. American Journal of Transplantation. 17:782-790.
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Article (Web of Science)
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2021Kidney Transplants From a Deceased Donor After 11 Days of Venovenous Hemodialysis. EXPERIMENTAL AND CLINICAL TRANSPLANTATION. 19:1224-1227.Full Text via DOI: 10.6002/ect.2020.0003 PMID: 32778018
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2021Urine versus stent cultures and clinical UTIs. INTERNATIONAL UROLOGY AND NEPHROLOGY.Full Text via DOI: 10.1007/s11255-021-02964-x PMID: 34327608
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2021Robotic stapler use: Is it safe?-FDA database analysis across multiple surgical specialties. PLOS ONE. 16.Full Text via DOI: 10.1371/journal.pone.0253548 PMID: 34166443
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2021Underrepresented minority representation trends in gynecologic oncology fellowships in the United States. GYNECOLOGIC ONCOLOGY. 160:485-491.Full Text via DOI: 10.1016/j.ygyno.2020.11.019 PMID: 33276987
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2021Risk factors for delayed graft function and their impact on graft outcomes in live donor kidney transplantation. INTERNATIONAL UROLOGY AND NEPHROLOGY. 53.Full Text via DOI: 10.1007/s11255-020-02687-5 PMID: 33394282
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2021Role of Synthetic Mesh Renorrhaphy and Neocapsule Reconstruction to Salvage Posttransplant Severely Damaged Renal Allografts. EXPERIMENTAL AND CLINICAL TRANSPLANTATION. 19:32-37.Full Text via DOI: 10.6002/ect.2019.0308 PMID: 32133942
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2020Intra-Arterial Hemodynamics to Guide the Percutaneous Treatment of a Difficult-to-Engage Transplant Renal Artery Stenosis. CARDIOVASCULAR REVASCULARIZATION MEDICINE. 21:S171-S173.Full Text via DOI: 10.1016/j.carrev.2020.06.009 PMID: 32565005
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2018Initial Experience with the Use of a Robotic Stapler for Robot-Assisted Donor Nephrectomy. JOURNAL OF ENDOUROLOGY. 32:1054-1057.Full Text via DOI: 10.1089/end.2018.0461
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2018Complete Chain of the First Global Kidney Exchange Transplant and 3-yr Follow-up. EUROPEAN UROLOGY FOCUS. 4:190-197.Full Text via DOI: 10.1016/j.euf.2018.07.021 PMID: 30145113
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2017Kidney Exchange to Overcome Financial Barriers to Kidney Transplantation. AMERICAN JOURNAL OF TRANSPLANTATION. 17.Full Text via DOI: 10.1111/ajt.14106
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2016Pediatric liver transplantation: predictors of survival and resource utilization. Pediatric Surgery International. 32:439-449.Full Text via DOI: 10.1007/s00383-016-3881-6
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2014Everolimus with low-dose tacrolimus in simultaneous pancreas and kidney transplantation. CLINICAL TRANSPLANTATION. 28:797-801.Full Text via DOI: 10.1111/ctr.12381
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2013Feasibility of renal transplantation after unroofing of a large renal cyst in an expanded criteria donor. Urology Annals. 5:206.Full Text via DOI: 10.4103/0974-7796.115755
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2012Active surveillance for low-risk prostate cancer: knowledge, acceptance and practice among urologists. PROSTATE CANCER AND PROSTATIC DISEASES. 15:177-181.Full Text via DOI: 10.1038/pcan.2011.57
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2012Molecular characterization of kidney cancer. Cancer. 118:2394-2402.Full Text via DOI: 10.1002/cncr.26520
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2012Radiofrequency ablation (RFA) therapy for renal angiomyolipoma (AML): an alternative to angio-embolization and nephron-sparing surgery. BJU INTERNATIONAL. 109:384-387.Full Text via DOI: 10.1111/j.1464-410x.2011.10376.x
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2012Rhabdomyolysis with acute kidney injury in deceased donors is not a contraindication for kidney donation. INTERNATIONAL UROLOGY AND NEPHROLOGY. 44:1107-1111.Full Text via DOI: 10.1007/s11255-012-0185-1
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2011Association of hyaluronic acid family members (HAS1, HAS2, and HYAL-1) with bladder cancer diagnosis and prognosis. Cancer. 117:1197-1209.Full Text via DOI: 10.1002/cncr.25565
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2011Inverted Nutcracker Syndrome: A Case of Persistent Hematuria and Pain in the Presence of a Left-Sided Inferior Vena Cava. THESCIENTIFICWORLDJOURNAL. 11:1031-1035.Full Text via DOI: 10.1100/tsw.2011.100
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2009Spontaneous Vaginal Drainage of a Pelvic Abscess. PEDIATRIC EMERGENCY CARE. 25:856-858.Full Text via DOI: 10.1097/pec.0b013e3181c39a50
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Book Chapter (Web of Science)
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2011Molecular Signatures of Bladder Cancer. Bladder Tumors:. 91-119.Full Text via DOI: 10.1007/978-1-60761-928-4_6
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Chapter (Faculty180)
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2018Global Kidney Exchange: An International Approach to Expanding Living Donor Kidney Transplant in Minority Groups. Article in The Journal of Urology . 199(4):e548.
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2015Paediatric Intestinal Multivisceral Transplantation Anesthesia and Critical Care. Oxford Textbook of Anesthesia: Transplantation Anesthesia and Critical Care. Oxford Press. 285-289.
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2014Complications of Immunosuppression in Solid Organ Transplantation. Complications in Surgery and Trauma: Second Edition. CRS Press. 499-511.
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2013Instrumentation and Technique: Hyperthermal Ablation: Radiofrequency and Microwave Ablation. Percutaneous Renal Surgery,. Wiley. 237-252.
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2012Percutaneous Radiofrequency Ablation of Kidney Tumors. Smith's Textbook of Endourology, 3rd Edition. Blackwell Publishing Ltd.. 1342-1357.
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2011Molecular signatures of bladder cancer. Bladder Tumors. Springer. 91.
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Conference Poster (Faculty180)
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Correction (Web of Science)
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2021Error in Figure Key. JAMA NETWORK OPEN. e2137690.Full Text via DOI: 10.1001/jamanetworkopen.2021.37690
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Early Access (Web of Science)
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2021APOL1 screening of potential living kidney donors in resource-limited countries: an initial experience in Antigua & Barbuda and Nigeria. TRANSPLANT INTERNATIONAL. 590.Full Text via DOI: 10.1111/tri.13815 PMID: 33423344
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Editorial Material (Web of Science)
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2020Global kidney exchange should expand wisely. TRANSPLANT INTERNATIONAL. 985-988.Full Text via DOI: 10.1111/tri.13656 PMID: 32430941
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2012Dramatic Reduction in Tumor Burden With Neoadjuvant Sunitinib Prior to Bilateral Nephron-sparing Surgery. UROLOGY. e11.Full Text via DOI: 10.1016/j.urology.2011.04.018
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Letter (Web of Science)
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2021Trends in Race and Ethnicity Among Matriculants to US Oncology Training Programs, 2015-2020. JAMA NETWORK OPEN.Full Text via DOI: 10.1001/jamanetworkopen.2021.28530 PMID: 34618042
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2017Global kidney exchange: Financially incompatible pairs are not transplantable compatible pairs. AMERICAN JOURNAL OF TRANSPLANTATION. 2743-2744.Full Text via DOI: 10.1111/ajt.14451
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2017People should not be banned from transplantation only because of their country of origin. AMERICAN JOURNAL OF TRANSPLANTATION. 2747-2748.Full Text via DOI: 10.1111/ajt.14485
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2012Re: Graft Reconstruction of Inferior Vena Cava for Renal Cell Carcinoma Stage pT3b or Greater (Urology 2011;78:838-843). UROLOGY. 486-487.Full Text via DOI: 10.1016/j.urology.2011.10.063
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Meeting Abstract (Web of Science)
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2021Racial and ethnic representation trends in United States oncology training programs.. JOURNAL OF CLINICAL ONCOLOGY. 6519-6519.Full Text via DOI: 10.1200/jco.2021.39.15_suppl.6519
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2021Representation trends in radiation oncology training programs in the United States.. JOURNAL OF CLINICAL ONCOLOGY. 11043-11043.Full Text via DOI: 10.1200/jco.2021.39.15_suppl.11043
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2019Analysis of Female Authorship in Two Transplant Journals: Is There a Gender Gap?. JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS. e213.Full Text via DOI: 10.1016/j.jamcollsurg.2019.08.1411
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2018Alemtuzumab Induction as a Mediator of Nonadherence in Renal Transplantation.. AMERICAN JOURNAL OF TRANSPLANTATION. 778-778.
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2018Impact of Immunogenicity on Kidney Allograft Survival in Patients Treated with Induction Therapy.. AMERICAN JOURNAL OF TRANSPLANTATION. 673-673.
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2018Renal Allograft Transplantation among Middle Eastern Population with Alemtuzumab Induction.. AMERICAN JOURNAL OF TRANSPLANTATION. 938-938.
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2017GLOBAL KIDNEY EXCHANGE: A CASE STUDY. TRANSPLANT INTERNATIONAL. 171-171.
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2017Deceased Donor-Initiated Non-Simultaneous Extended Altruistic Donor Chains Through the Military Share Program.. AMERICAN JOURNAL OF TRANSPLANTATION. 804-805.
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2017Global Kidney Exchange.. AMERICAN JOURNAL OF TRANSPLANTATION. 812-812.
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2017Deceased Donor Initiated Nonsimultaneous Extended Altruistic Donor Chains Through the Military Share Program. AMERICAN JOURNAL OF TRANSPLANTATION. 60-61.
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2017Global Kidney Exchange. AMERICAN JOURNAL OF TRANSPLANTATION. 60-60.
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2017MP30-10 GLOBAL KIDNEY EXCHANGE: STRIVING FOR TRIFECTA OUTCOMES IN MANAGEMENT OF KIDNEY FAILURE. JOURNAL OF UROLOGY.Full Text via DOI: 10.1016/j.juro.2017.02.943
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2014Pediatric Liver Transplantation: Survival Outcomes, 1997-2009.. TRANSPLANTATION. 169.Full Text via DOI: 10.1097/00007890-201407151-00515
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20122272 RHABDOMYOLYSIS WITH ACUTE RENAL FAILURE IN DECEASED DONORS IS NOT A CONTRAINDICATION FOR KIDNEY DONATION. JOURNAL OF UROLOGY.Full Text via DOI: 10.1016/j.juro.2012.02.2450
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20111354 CHEMOKINE SDF1-B AND RECEPTOR CXCR7: FUNCTIONALLY ASSOCIATED MOLECULAR MARKERS FOR BLADDER CANCER DIAGNOSIS AND PROGNOSIS. JOURNAL OF UROLOGY.Full Text via DOI: 10.1016/j.juro.2011.02.1176
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Other Scholarly Work (Faculty180)
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2017Global Kidney Exchange: Striving for Trifecta Outcomes in Management of Kidney Failure. AUA Vol. 197, No. 4S, Supplement The Journal of Urology.
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Presentation (Faculty180)
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Proceedings (Faculty180)
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Review (Faculty180)
Contact
full name
- Obi Ekwenna