Omar M Ragab, MD

Title(s)Assistant Professor of Clinical Radiation Oncology
AddressNOR 1441 Eastlake Ave
Health Sciences Campus
Los Angeles CA 90033
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    Title(s)Director of Brachytherapy

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    Dr. Omar Ragab is an Assistant Professor of Clinical Radiation Oncology at USC Norris Cancer Hospital and USC + Los Angeles County Medical Center. He joined USC in September 2016.

    Dr. Ragab completed his residency training as chief resident in radiation oncology at LAC+USC Medical Center in Los Angeles. He received his medical degree from the Keck School of Medicine of USC and received his Bachelor of Arts degree in Neuroscience from the University of Southern California, graduating magna cum laude. Dr. Ragab recently completed his fellowship training in clinical brachytherapy at the Ronald Reagan UCLA Medical Center under the mentorship of Dr. Jeffrey Demanes. Dr. Ragab's research interests include gynecologic cancers and brachytherapy treatment programs.

    Dr. Ragab provides clinical services for GI cancer, GYN cancer, and Sarcoma and is developing a brachytherapy program for multiple disease sites at Keck Medical Center of USC and LAC+USC Medical Center. He is focused and dedicated in his expert management of patients diagnosed with gynecological cancers. He is highly recognized for his easy-going personality, exemplary skill, knowledge, and work ethic. He provides top level care in gynecologic oncology involving state of the art intensity modulated radiation therapy (IMRT) techniques, as well as traditional but highly effective intra-cavitary brachytherapy procedures.

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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. Acral Lentiginous Melanoma - Population, Treatment and Survival using the NCDB from 2004-2015. Pigment Cell Melanoma Res. 2021 Jul 17. Bian S, Hwang L, Hwang J, Ragab O, In GK, Peng D, Lin E. PMID: 34273249.
      View in: PubMed   Mentions:    Fields:    
    2. Beyond Sedlis-A novel histology-specific nomogram for predicting cervical cancer recurrence risk: An NRG/GOG ancillary analysis. Gynecol Oncol. 2021 Jun 30. Levinson K, Beavis AL, Purdy C, Rositch AF, Viswanathan A, Wolfson AH, Kelly MG, Tewari KS, McNally L, Guntupalli SR, Ragab O, Lee YC, Miller DS, Huh WK, Wilkinson KJ, Spirtos NM, Van Le L, Casablanca Y, Holman LL, Waggoner SE, Fader AN. PMID: 34217544.
      View in: PubMed   Mentions:    Fields:    
    3. Adjuvant hysterectomy following primary chemoradiation for stage IB2 and IIA2 cervical cancer: a retrospective comparison of complications for open versus minimally invasive surgery. Radiat Oncol. 2021 Jun 29; 16(1):123. Miller H, Matsuo KM, Roman LD, Yessaian AA, Pham HQ, Hom M, Castaneda A, Pham A, Ragab O, Muderspach L, Ciccone M, Brunette LL. PMID: 34187504.
      View in: PubMed   Mentions:    Fields:    
    4. Association between definitive chemoradiotherapy wait-time and survival in locally-advanced cervical cancer: Implications during the coronavirus pandemic. Gynecol Oncol. 2021 05; 161(2):414-421. Matsuo K, Huang Y, Matsuzaki S, Ragab OM, Roman LD, Wright JD. PMID: 33771396.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. PD-1 inhibition therapy for advanced cutaneous squamous cell carcinoma: a retrospective analysis from the University of Southern California. J Cancer Res Clin Oncol. 2021 Jun; 147(6):1803-1811. In GK, Vaidya P, Filkins A, Hermel DJ, King KG, Ragab O, Tseng WW, Swanson M, Kokot N, Lang JE, Menendez L, DeClerck B, Kim G, Hu JC, Terando A, Jadvar H, Ricker C, Miller KA, Peng DH, Wysong A. PMID: 33210210.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    6. Multidisciplinary sarcoma tumor board: adolescent and young adult soft tissue sarcoma-myxoid liposarcoma and alveolar soft part sarcoma. Chin Clin Oncol. 2020 Oct; 9(5):67. Jayachandran P, Patel D, Hu J, Ragab O, Ho J, Lara K, Ching A, Wayman C, Tseng WW. PMID: 33161723.
      View in: PubMed   Mentions: 1     Fields:    
    7. Multidisciplinary sarcoma tumor board: retroperitoneal liposarcoma. Chin Clin Oncol. 2020 04; 9(2):20. Tseng WW, Chen J, Patel D, Miao C, Ching A, Yang S, Feng Y, Matcuk G, Lara K, Hu J, Ragab O, Ho J, Rao X, Hanif S, Luo C. PMID: 32156120.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    8. Rapidly Progressive Porocarcinoma of the Ear and Multidisciplinary Approach to Management. Dermatol Surg. 2020 Mar 04. Rabi S, Syder N, Ragab O, In G, Hu JC. PMID: 32141925.
      View in: PubMed   Mentions:    Fields:    
    9. Concurrent radiation therapy with programmed cell death protein 1 inhibition leads to a complete response in advanced cutaneous squamous cell carcinoma. JAAD Case Rep. 2019 Sep; 5(9):763-766. Vaidya P, Mehta A, Ragab O, Lin S, In GK. PMID: 31516991.
      View in: PubMed   Mentions:
    10. Cetuximab as a Component of Multimodality Treatment of High-Risk Cutaneous Squamous Cell Carcinoma: A Retrospective Analysis From a Single Tertiary Academic Medical Center. Dermatol Surg. 2019 02; 45(2):254-267. Trodello C, Higgins S, Ahadiat O, Ragab O, In G, Hawkins M, Wysong A. PMID: 30672860.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    11. Tumor-specific outcome of metachronous uterine malignancy after pelvic irradiation for cervical cancer. Gynecol Oncol. 2018 11; 151(2):250-256. Matsuo K, Machida H, Mandelbaum RS, Ragab OM, Roman LD, Wright JD. PMID: 30197062.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    12. Targeted Prostate Biopsy Gleason Score Heterogeneity and Implications for Risk Stratification. Am J Clin Oncol. 2018 05; 41(5):497-501. Mesko S, Marks L, Ragab O, Patel S, Margolis DA, Demanes DJ, Kamrava M. PMID: 27281263.
      View in: PubMed   Mentions: 7     Fields:    Translation:Humans
    13. Acute toxicity of craniospinal irradiation with volumetric-modulated arc therapy in children with solid tumors. Pediatr Blood Cancer. 2018 07; 65(7):e27050. Wong KK, Ragab O, Tran HN, Pham A, All S, Waxer J, Olch AJ. PMID: 29630782.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    14. Development of a Radiation Oncology Resident Continuity Clinic to Improve Clinical Competency and Patient Compliance. Int J Radiat Oncol Biol Phys. 2018 03 01; 100(3):551-555. Yoo SK, Bian SX, Lin E, Batth SS, Ng LW, Andrade J, Williams PA, Pham AH, Ragab OM, Schechter NR, Chang EL, Jennelle RLS. PMID: 29413269.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    15. Inflammatory Breast Cancer Outcomes in a Contemporary Series. Anticancer Res. 2017 09; 37(9):5057-5063. Pan E, Tung L, Ragab O, Morocco E, Wecsler J, Sposto R, Raghavendra A, Chung E, Lang JE. PMID: 28870934.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    16. Comparison of patient-reported acute urinary and sexual toxicity scores in a 6- versus 2-fraction course of high-dose-rate prostate brachytherapy monotherapy. J Med Imaging Radiat Oncol. 2018 Feb; 62(1):109-115. Ragab O, Banerjee R, Park SJ, Patel S, Zhang M, Wang J, Velez M, Demanes DJ, Kamrava M. PMID: 28856847.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansPHPublic Health
    17. Patient compliance for postoperative radiotherapy and survival outcome of women with stage I endometrioid endometrial cancer. J Surg Oncol. 2017 Sep; 116(4):482-491. Matsuo K, Machida H, Ragab OM, Garcia-Sayre J, Yessaian AA, Roman LD. PMID: 28543055.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    18. Extent of pelvic lymphadenectomy and use of adjuvant vaginal brachytherapy for early-stage endometrial cancer. Gynecol Oncol. 2017 03; 144(3):515-523. Matsuo K, Machida H, Ragab OM, Takiuchi T, Pham HQ, Roman LD. PMID: 28017306.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    19. High-dose-rate brachytherapy monotherapy without androgen deprivation therapy for intermediate-risk prostate cancer. Brachytherapy. 2017 Mar - Apr; 16(2):299-305. Patel S, Demanes DJ, Ragab O, Zhang M, Veruttipong D, Nguyen K, Park SJ, Marks L, Pantuck A, Steinberg M, Kamrava M. PMID: 27965117.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansPHPublic Health
    20. Another solution that enables ablative radiotherapy for large liver tumors: Percutaneous interstitial high-dose rate brachytherapy. Cancer. 2016 09 01; 122(17):2766. Patel S, Ragab O, Kamrava M. PMID: 27244104.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    21. Real-time image guidance for gynecologic brachytherapy? Radiother Oncol. 2016 09; 120(3):542-543. Patel S, Ragab O, Kamrava M. PMID: 27056625.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    22. Brachytherapy: Where Has It Gone…Again? J Clin Oncol. 2016 Apr 01; 34(10):1155. Patel S, Ragab O, Demanes DJ, Chen AM, Kamrava M. PMID: 26884564.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    23. Regional correlation among ganglion cell complex, nerve fiber layer, and visual field loss in glaucoma. Invest Ophthalmol Vis Sci. 2013 Jun 21; 54(6):4287-95. Le PV, Tan O, Chopra V, Francis BA, Ragab O, Varma R, Huang D. PMID: 23716631.
      View in: PubMed   Mentions: 28     Fields:    Translation:HumansCells
    24. Pulmonary homograft monocusp reconstruction of the right ventricular outflow tract: outcomes to the intermediate term. Ann Thorac Surg. 2010 Jul; 90(1):42-9. Nath DS, Nussbaum DP, Yurko C, Ragab OM, Shin AJ, Kumar SR, Starnes VA, Wells WJ. PMID: 20609745.
      View in: PubMed   Mentions: 4     Fields:    Translation:Humans
    25. Complete cloacal duplication imaged before and during pregnancy. J Radiol Case Rep. 2009; 3(11):24-8. Ragab O, Landay M, Shriki J. PMID: 22470627.
      View in: PubMed   Mentions: 2     Fields:    
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