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Ryan Knoper

Title(s)Clinical Assistant Professor of Surgery (Practitioner)
SchoolKeck School of Medicine of Usc
Address1520 San Pablo St.
Health Sciences Campus
Los Angeles CA 90033
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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help. to make corrections and additions.
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    Altmetrics Details PMC Citations indicate the number of times the publication was cited by articles in PubMed Central, and the Altmetric score represents citations in news articles and social media. (Note that publications are often cited in additional ways that are not shown here.) Fields are based on how the National Library of Medicine (NLM) classifies the publication's journal and might not represent the specific topic of the publication. Translation tags are based on the publication type and the MeSH terms NLM assigns to the publication. Some publications (especially newer ones and publications not in PubMed) might not yet be assigned Field or Translation tags.) Click a Field or Translation tag to filter the publications.
    1. Safety and performance of a novel subxiphoidal pacemaker system. J Interv Card Electrophysiol. 2024 Mar 01. Libbus I, Tholakanahalli V, Roukoz H, Knoper R, Verma V, Isac D, Manicka Y. PMID: 38427181.
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    2. The Adherence to an Intraoperative Blood Product Transfusion Algorithm Is Associated With Reduced Blood Product Transfusions in Cardiac Surgical Patients Undergoing Coronary Artery Bypass Grafts and Aortic and/or Valve Replacement Surgery: A Single-Center, Observational Study. J Cardiothorac Vasc Anesth. 2024 May; 38(5):1135-1143. Lanigan M, Siers D, Schramski M, Shaffer A, John R, Knoper R, Huddleston S, Gunn-Sandell L, Kaizer A, Perry TE. PMID: 38413344.
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    3. Survival After Simultaneous Heart-kidney Transplant in Recipients With a Durable LVAD and Chronic Kidney Disease: Effect of the 2018 Heart Allocation Policy Change. Transplantation. 2024 02 01; 108(2):524-529. Fraser M, Agdamag AC, Riad S, Nzemenoh BN, Jackson S, Money J, Knoper R, Martin CM, Alexy T. PMID: 37677944.
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    4. Effect of Combination of Balloon Pulmonary Angioplasty and Medical Therapy on Reverse Right Ventricular Remodeling and Hemodynamics in Chronic Thromboembolic Pulmonary Hypertension. J Invasive Cardiol. 2023 06; 35(6):E312-E320. Kazmirczak F, Prisco SZ, Knoper R, Huddleston S, Raveendran G, Pritzker M, Thenappan T, Prins KW, Gurevich S. PMID: 37410748; PMCID: PMC10428086.
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    5. A retrospective study on the trends in surgical aortic valve replacement outcomes in the post-transcatheter aortic valve replacement era. Health Sci Rep. 2022 May; 5(3):e660. Chahine J, Jedeon Z, Fiocchi J, Shaffer A, Knoper R, John R, Yannopoulos D, Raveendran G, Gurevich S. PMID: 35620548; PMCID: PMC9124950.
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    6. The Use of a Viscoelastic-Based Transfusion Algorithm Significantly Reduces Non-red Blood Cell Transfusion in Patients Undergoing Left Ventricular Assist Device Placement or Heart Transplantation: A Single-Center Observational Study. J Cardiothorac Vasc Anesth. 2022 08; 36(8 Pt B):3038-3046. Lanigan M, Siers D, Wilkey A, Barakat A, Shaffer A, John R, Knoper R, Huddleston S, Kaizer A, Perry TE. PMID: 35545456.
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    7. Left Thoracotomy Beating Heart Repair of Mitral Periprosthetic Regurgitation. Ann Thorac Surg. 2022 02; 113(2):e103-e105. Bond E, Marey G, Knoper R, Said SM. PMID: 33961820.
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    8. A Pericardial Pin: Embolization of an Inferior Vena Cava Filter Strut Presenting as Acute Pericarditis. JACC Case Rep. 2021 Feb; 3(2):304-308. Buda KG, Urbach J, Rivard M, Knoper RC, Carlson MD, Kohl L. PMID: 34317524; PMCID: PMC8310993.
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    9. Commentary: The only constant is change: Understanding the changes in the new heart allocation system. J Thorac Cardiovasc Surg. 2021 May; 161(5):1851-1852. Knoper RC, John R. PMID: 33288240.
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    10. Second site mutation in the virus envelope expands the host range of a cytopathic variant of Moloney murine leukemia virus. Virology. 2012 Nov 10; 433(1):7-11. Ferrarone J, Knoper RC, Li R, Kozak CA. PMID: 22835818; PMCID: PMC3444676.
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    11. Removal of either N-glycan site from the envelope receptor binding domain of Moloney and Friend but not AKV mouse ecotropic gammaretroviruses alters receptor usage. Virology. 2009 Sep 01; 391(2):232-9. Knoper RC, Ferrarone J, Yan Y, Lafont BA, Kozak CA. PMID: 19584017; PMCID: PMC2732407.
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    12. Wild mouse variants of envelope genes of xenotropic/polytropic mouse gammaretroviruses and their XPR1 receptors elucidate receptor determinants of virus entry. J Virol. 2007 Oct; 81(19):10550-7. Yan Y, Knoper RC, Kozak CA. PMID: 17634227; PMCID: PMC2045450.
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    NIH Funding Acknowledgment: Important - All publications resulting from the utilization of SC CTSI resources are required to credit the SC CTSI grant by including the NIH funding acknowledgment and must comply with the NIH Public Access Policy.

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