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Paul Jacob Kokorowski, MD

TitleAssistant Professor of Clinical Urology
InstitutionUniversity of Southern California
DepartmentPediatrics
AddressCHL Mail Stop 114
Off Campus
Los Angeles CA 90089
Phone+1 323 361 2247
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    Dr. Paul Kokorowski is an Assistant Professor of Urology working in the Division of Pediatric Urology at Children's Hospital Los Angeles. He is a native Californian who spent his childhood in the San Fernando Valley. After completing his Bachelors degree in Molecular & Cell Biology from the University of California, Berkeley, he attended the Keck School of Medicine of the University of Southern California. He stayed to complete a residency in Urology through the LAC/USC program and rotated several times through Children's Hospital Los Angeles. He went on to complete a fellowship in Pediatric Urology at Boston Children's Hospital. During fellowship, he also earned his MPH from the Harvard School of Public Health. His research interests include the clinical effectiveness and health services. Current work focuses on comparative effectiveness and cost- effectiveness, quality improvement and evaluation of outcomes.


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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.
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    1. Kokorowski PJ, Chow JS, Cilento BG, Kim DS, Kurtz MP, Logvinenko T, MacDougall RD, Nelson CP. The effect of surgeon versus technologist control of fluoroscopy on radiation exposure during pediatric ureteroscopy: A randomized trial. J Pediatr Urol. 2018 Jun 27. PMID: 30257794.
      View in: PubMed
    2. Kokorowski PJ, Chow JS, Cilento BG, Kim DS, Kurtz MP, Logvinenko T, MacDougall RD, Nelson CP. Response to letter to the editor re "The effect of surgeon vs. technologist control of fluoroscopy on radiation exposure during pediatric ureteroscopy: A randomized trial". J Pediatr Urol. 2018 Jun 09. PMID: 29914822.
      View in: PubMed
    3. Fabien-Dupuis C, Niver B, Shillingford N, Wang L, Kokorowski PJ, Zhou S. Melanotic Neuroectodermal Tumor of Infancy Presenting With Fast-Growing Scrotal Swelling: A Case Report and Literature Review. Pediatr Dev Pathol. 2017 Sep-Oct; 20(5):411-415. PMID: 28812465.
      View in: PubMed
    4. Kim MS, Goodarzian F, Keenan MF, Geffner ME, Koppin CM, De Filippo RE, Kokorowski PJ. Testicular Adrenal Rest Tumors in Boys and Young Adults with Congenital Adrenal Hyperplasia. J Urol. 2017 Mar; 197(3 Pt 2):931-936. PMID: 27840017.
      View in: PubMed
    5. Tejwani R, Wang HS, Lloyd JC, Kokorowski PJ, Nelson CP, Routh JC. Utility Estimation for Pediatric Vesicoureteral Reflux: Methodological Considerations Using an Online Survey Platform. J Urol. 2017 Mar; 197(3 Pt 1):805-810. PMID: 27746280.
      View in: PubMed
    6. Fabien-Dupuis C, Niver B, Shillingford N, Wang L, Kokorowski PJ, Zhou S. Melanotic Neuroectodermal Tumor of Infancy Presenting with Fast Growing Scrotal Swelling: A Case Report and Literature Review. Pediatr Dev Pathol. 2015 Dec 15. PMID: 26669807.
      View in: PubMed
    7. Choi D, Ramu S, Park E, Jung E, Yang S, Jung W, Choi I, Lee S, Kim KE, Seong YJ, Hong M, Daghlian G, Kim D, Shin E, Seo JI, Khatchadourian V, Zou M, Li W, De Filippo R, Kokorowski P, Chang A, Kim S, Bertoni A, Furlanetto TW, Shin S, Li M, Chen Y, Wong A, Koh C, Geliebter J, Hong YK. Aberrant Activation of Notch Signaling Inhibits PROX1 Activity to Enhance the Malignant Behavior of Thyroid Cancer Cells. Cancer Res. 2016 Feb 01; 76(3):582-93. PMID: 26609053; PMCID: PMC4738160 [Available on 02/01/17].
    8. Nelson CP, Routh JC, Logvinenko T, Rosoklija I, Kokorowski PJ, Prosser LA, Schuster MA. Utility scores for vesicoureteral reflux and anti-reflux surgery. J Pediatr Urol. 2015 Aug; 11(4):177-82. PMID: 25975732; PMCID: PMC4540632.
    9. Lloyd JC, Yen T, Pietrobon R, Wiener JS, Ross SS, Kokorowski PJ, Nelson CP, Routh JC. Estimating utility values for vesicoureteral reflux in the general public using an online tool. J Pediatr Urol. 2014 Dec; 10(6):1026-31. PMID: 24766856; PMCID: PMC4185270.
    10. Lloyd JC, Madden-Fuentes RJ, Nelson CP, Kokorowski PJ, Wiener JS, Ross SS, Kutikov A, Routh JC. Response to "Reputation rankings for pediatric urology moderately". J Pediatr Urol. 2014 Feb; 10(1):201-2. PMID: 24076378; PMCID: PMC4116181.
    11. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. New contralateral vesicoureteral reflux after unilateral ureteral reimplantation: predictive factors and clinical outcomes. J Urol. 2014 Feb; 191(2):451-7. PMID: 24012582.
      View in: PubMed
    12. Kokorowski PJ, Wang HH, Routh JC, Hubert KC, Nelson CP. Evaluation of the contralateral inguinal ring in clinically unilateral inguinal hernia: a systematic review and meta-analysis. Hernia. 2014 Jun; 18(3):311-24. PMID: 23963735; PMCID: PMC3931747.
    13. Kokorowski P. Editorial comment. J Urol. 2013 Oct; 190(4):1369-70. PMID: 23871524.
      View in: PubMed
    14. Kokorowski PJ, Routh JC, Hubert K, Graham DA, Nelson CP. Trends in revision circumcision at pediatric hospitals. Clin Pediatr (Phila). 2013 Aug; 52(8):699-706. PMID: 23820002; PMCID: PMC4130460.
    15. Lloyd JC, Madden-Fuentes RJ, Nelson CP, Kokorowski PJ, Wiener JS, Ross SS, Kutikov A, Routh JC. The Publication Ranking Score for pediatric urology: quantifying thought leadership within the subspecialty. J Pediatr Urol. 2013 Dec; 9(6 Pt B):1108-1113. PMID: 23622970; PMCID: PMC4088330.
    16. Kokorowski PJ, Chow JS, Strauss KJ, Pennison M, Tan W, Cilento B, Nelson CP. Prospective systematic intervention to reduce patient exposure to radiation during pediatric ureteroscopy. J Urol. 2013 Oct; 190(4 Suppl):1474-8. PMID: 23473898.
      View in: PubMed
    17. Kokorowski PJ, Routh JC, Nelson CP. Quality assessment of economic analyses in pediatric urology. Urology. 2013 Feb; 81(2):263-7. PMID: 23374775; PMCID: PMC3594685.
    18. Lee NG, Gomez P, Uberoi V, Kokorowski PJ, Khoshbin S, Bauer SB, Estrada CR. In utero closure of myelomeningocele does not improve lower urinary tract function. J Urol. 2012 Oct; 188(4 Suppl):1567-71. PMID: 22917751.
      View in: PubMed
    19. Kokorowski PJ, Routh JC, Hubert KC, Graham DA, Nelson CP. Association of urolithiasis with systemic conditions among pediatric patients at children's hospitals. J Urol. 2012 Oct; 188(4 Suppl):1618-22. PMID: 22906655.
      View in: PubMed
    20. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. Clinical outcomes and long-term resolution in patients with persistent vesicoureteral reflux after open ureteral reimplantation. J Urol. 2012 Oct; 188(4 Suppl):1474-9. PMID: 22906647.
      View in: PubMed
    21. Kokorowski PJ, Chow JS, Strauss K, Pennison M, Routh JC, Nelson CP. Prospective measurement of patient exposure to radiation during pediatric ureteroscopy. J Urol. 2012 Apr; 187(4):1408-14. PMID: 22341275; PMCID: PMC3810162.
    22. Nelson CP, Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB. Long-term incidence of urinary tract infection after ureteral reimplantation for primary vesicoureteral reflux. J Pediatr Urol. 2013 Feb; 9(1):92-8. PMID: 22261484.
      View in: PubMed
    23. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. Durability of antireflux effect of ureteral reimplantation for primary vesicoureteral reflux: findings on long-term cystography. Urology. 2012 Mar; 79(3):675-9. PMID: 22245304; PMCID: PMC3792793.
    24. Routh JC, Pennison M, Rosoklija I, Dobbins S, Kokorowski PJ, Hubert KC, Huang L, Nelson CP. Racial variation in timing of pyeloplasty: prenatal versus postnatal diagnosis. J Urol. 2011 Dec; 186(6):2386-91. PMID: 22014821; PMCID: PMC3826789.
    25. Kokorowski PJ, Routh JC, Borer JG, Estrada CR, Bauer SB, Nelson CP. Screening for malignancy after augmentation cystoplasty in children with spina bifida: a decision analysis. J Urol. 2011 Oct; 186(4):1437-43. PMID: 21855939.
      View in: PubMed
    26. Routh JC, Grant FD, Kokorowski PJ, Nelson CP, Fahey FH, Treves ST, Lee RS. Economic and radiation costs of initial imaging approaches after a child's first febrile urinary tract infection. Clin Pediatr (Phila). 2012 Jan; 51(1):23-30. PMID: 21868595; PMCID: PMC3792796.
    27. Wang HH, Huang L, Routh JC, Kokorowski P, Cilento BG, Nelson CP. Use of the ureteral access sheath during ureteroscopy in children. J Urol. 2011 Oct; 186(4 Suppl):1728-33. PMID: 21855908.
      View in: PubMed
    28. Abbott MM, Kokorowski PJ, Meara JG. Timeliness of surgical care in children with special health care needs: delayed palate repair for publicly insured and minority children with cleft palate. J Pediatr Surg. 2011 Jul; 46(7):1319-24. PMID: 21763828.
      View in: PubMed
    29. Kokorowski P, De Filippo RE, Koh CJ. Editorial comment. Urology. 2011 May; 77(5):1253; author reply 1253. PMID: 21539975.
      View in: PubMed
    30. Routh JC, Grant FD, Kokorowski P, Lee RS, Fahey FH, Treves ST, Nelson CP. Costs and consequences of universal sibling screening for vesicoureteral reflux: decision analysis. Pediatrics. 2010 Nov; 126(5):865-71. PMID: 20956427; PMCID: PMC3098562.
    31. Kokorowski PJ, Hubert K, Nelson CP. Evaluation of pediatric nephrolithiasis. Indian J Urol. 2010 Oct; 26(4):531-5. PMID: 21369386; PMCID: PMC3034062.
    32. Kokorowski PJ, Routh JC, Graham DA, Nelson CP. Variations in timing of surgery among boys who underwent orchidopexy for cryptorchidism. Pediatrics. 2010 Sep; 126(3):e576-82. PMID: 20732947; PMCID: PMC3102510.
    33. Chandrasoma S, Kokorowski P, Peters CA, Koh CJ. Straight-arm positioning and port placement for pediatric robotic-assisted laparoscopic renal surgery. J Robot Surg. 2010 May; 4(1):29-32. PMID: 27638569.
      View in: PubMed
    34. Nguyen HT, Herndon CD, Cooper C, Gatti J, Kirsch A, Kokorowski P, Lee R, Perez-Brayfield M, Metcalfe P, Yerkes E, Cendron M, Campbell JB. The Society for Fetal Urology consensus statement on the evaluation and management of antenatal hydronephrosis. J Pediatr Urol. 2010 Jun; 6(3):212-31. PMID: 20399145.
      View in: PubMed
    35. Yamzon J, Kokorowski P, De Filippo RE, Chang AY, Hardy BE, Koh CJ. Pediatric robot-assisted laparoscopic excision of urachal cyst and bladder cuff. J Endourol. 2008 Oct; 22(10):2385-8; discussion 2388. PMID: 18937602; PMCID: PMC3141736.
    36. Hadjizacharia P, Inaba K, Teixeira PG, Kokorowski P, Demetriades D, Best C. Evaluation of immediate endoscopic realignment as a treatment modality for traumatic urethral injuries. J Trauma. 2008 Jun; 64(6):1443-9; discussion 1449-50. PMID: 18545107.
      View in: PubMed
    37. Yamzon JL, Kokorowski P, Koh CJ. Stem cells and tissue engineering applications of the genitourinary tract. Pediatr Res. 2008 May; 63(5):472-7. PMID: 18427290.
      View in: PubMed
    38. Giuliani S, Perin L, Sedrakyan S, Kokorowski P, Jin D, De Filippo R. Ex vivo whole embryonic kidney culture: a novel method for research in development, regeneration and transplantation. J Urol. 2008 Jan; 179(1):365-70. PMID: 18006007.
      View in: PubMed
    39. Calder K, Kokorowski P, Tran T, Henderson S. Emergency department presentation of pediatric stroke. Pediatr Emerg Care. 2003 Oct; 19(5):320-8. PMID: 14578831.
      View in: PubMed
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