Paul Jacob Kokorowski, MD

Title(s)Assistant Professor of Clinical Urology
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. 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. Sample Size, Power, and Risk of Misclassification in Pediatric Urology Hospital Rankings. J Urol. 2021 08; 206(2):436-446. Baker Z, Bhaskar N, Herbst KW, Hagadorn JI, Kokorowski P. PMID: 33983039.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    2. The impact of patient age and procedure type on postoperative opioid use following ambulatory pediatric urologic procedures. Pediatr Surg Int. 2021 Aug; 37(8):1127-1133. Basin MF, Baker ZG, Trabold M, Zhu T, Kelley-Quon LI, Bhaskar N, Vazirani R, Chen J, Kokorowski PJ. PMID: 33904987.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    3. Social media engagement, perpetuating selected information, and accuracy regarding CA SB-201: Treatment or intervention on the sex characteristics of a minor. J Pediatr Urol. 2021 06; 17(3):372-377. Shoureshi PS, Rajasegaran A, Kokorowski P, Sparks SS, Seideman CA. PMID: 33663998.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    4. What Do Patients and Parents Say About Parents' Ability to Choose Early Genital Surgery for Girls with Congenital Adrenal Hyperplasia? J Urol. 2021 06; 205(6):1770-1777. Szymanski KM, Braga LH, Whittam B, Kokorowski P, Leland BD. PMID: 33525923.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    5. Robotic adrenalectomy in the pediatric population: initial experience case series from a tertiary center. BMC Urol. 2020 Oct 07; 20(1):155. Mitra AP, Vasquez E, Kokorowski P, Chang AY. PMID: 33028284.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    6. A survey and panel discussion of the effects of the COVID-19 pandemic on paediatric urological productivity, guideline adherence and provider stress. J Pediatr Urol. 2020 08; 16(4):492.e1-492.e9. O'Kelly F, Sparks S, Seideman C, Gargollo P, Granberg C, Ko J, Malhotra N, Hecht S, Swords K, Rowe C, Whittam B, Spinoit AF, Dudley A, Ellison J, Chu D, Routh J, Cannon G, Kokorowski P, Koyle M, Silay MS, APAUC (Academic Paediatric and Adolescent Urology Collaborative) and the YAU (Young Academic Urologi . PMID: 32680626.
      View in: PubMed   Mentions: 1     Fields:    Translation:HumansCellsPHPublic Health
    7. Patient and Caregiver Attitudes toward Disorders of Sex Development Nomenclature. J Urol. 2020 10; 204(4):835-842. D'Oro A, Rosoklija I, Jacobson DL, Finlayson C, Chen D, Tu DD, Austin PF, Karaviti LP, Gunn SK, Nahata L, Kapa HM, Kokorowski PJ, Kim MS, Messina AC, Kolon TF, Yerkes EB, Cheng EY, Johnson EK. PMID: 32302259.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    8. Reporting Outcomes after Minimally Invasive Urological Surgery-What Should the Standards Be? J Urol. 2020 05; 203(5):892-893. Kokorowski P. PMID: 32077802.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    9. Absence of Testicular Adrenal Rest Tumors in Newborns, Infants, and Toddlers with Classical Congenital Adrenal Hyperplasia. Horm Res Paediatr. 2019; 92(3):157-161. Kim MS, Koppin CM, Mohan P, Goodarzian F, Ross HM, Geffner ME, De Filippo R, Kokorowski P. PMID: 31747670.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    10. The effect of surgeon versus technologist control of fluoroscopy on radiation exposure during pediatric ureteroscopy: A randomized trial. J Pediatr Urol. 2018 08; 14(4):334.e1-334.e8. Kokorowski PJ, Chow JS, Cilento BG, Kim DS, Kurtz MP, Logvinenko T, MacDougall RD, Nelson CP. PMID: 30257794.
      View in: PubMed   Mentions:    Fields:    Translation:HumansPHPublic Health
    11. 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 08; 14(4):363. Kokorowski PJ, Chow JS, Cilento BG, Kim DS, Kurtz MP, Logvinenko T, MacDougall RD, Nelson CP. PMID: 29914822.
      View in: PubMed   Mentions:    Fields:    Translation:HumansPHPublic Health
    12. Variation in the use of laparoscopy with inguinal hernia repairs in a sample of pediatric patients at children's hospitals. J Pediatr Urol. 2018 04; 14(2):158.e1-158.e7. Herbst KW, Thaker H, Lockwood GM, Hagadorn JI, Masoud S, Kokorowski P. PMID: 29195832.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    13. 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. Fabien-Dupuis C, Niver B, Shillingford N, Wang L, Kokorowski PJ, Zhou S. PMID: 28812465.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    14. Testicular Adrenal Rest Tumors in Boys and Young Adults with Congenital Adrenal Hyperplasia. J Urol. 2017 03; 197(3 Pt 2):931-936. Kim MS, Goodarzian F, Keenan MF, Geffner ME, Koppin CM, De Filippo RE, Kokorowski PJ. PMID: 27840017.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    15. Utility Estimation for Pediatric Vesicoureteral Reflux: Methodological Considerations Using an Online Survey Platform. J Urol. 2017 03; 197(3 Pt 1):805-810. Tejwani R, Wang HS, Lloyd JC, Kokorowski PJ, Nelson CP, Routh JC. PMID: 27746280.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    16. 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. 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. PMID: 26609053.
      View in: PubMed   Mentions: 18     Fields:    Translation:HumansAnimalsCells
    17. Utility scores for vesicoureteral reflux and anti-reflux surgery. J Pediatr Urol. 2015 Aug; 11(4):177-82. Nelson CP, Routh JC, Logvinenko T, Rosoklija I, Kokorowski PJ, Prosser LA, Schuster MA. PMID: 25975732.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    18. Estimating utility values for vesicoureteral reflux in the general public using an online tool. J Pediatr Urol. 2014 Dec; 10(6):1026-31. Lloyd JC, Yen T, Pietrobon R, Wiener JS, Ross SS, Kokorowski PJ, Nelson CP, Routh JC. PMID: 24766856.
      View in: PubMed   Mentions: 8     Fields:    Translation:HumansPHPublic Health
    19. Response to "Reputation rankings for pediatric urology moderately". J Pediatr Urol. 2014 Feb; 10(1):201-2. Lloyd JC, Madden-Fuentes RJ, Nelson CP, Kokorowski PJ, Wiener JS, Ross SS, Kutikov A, Routh JC. PMID: 24076378.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    20. New contralateral vesicoureteral reflux after unilateral ureteral reimplantation: predictive factors and clinical outcomes. J Urol. 2014 Feb; 191(2):451-7. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. PMID: 24012582.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    21. Evaluation of the contralateral inguinal ring in clinically unilateral inguinal hernia: a systematic review and meta-analysis. Hernia. 2014 Jun; 18(3):311-24. Kokorowski PJ, Wang HH, Routh JC, Hubert KC, Nelson CP. PMID: 23963735.
      View in: PubMed   Mentions: 14     Fields:    Translation:Humans
    22. Editorial comment. J Urol. 2013 Oct; 190(4):1369-70. Kokorowski P. PMID: 23871524.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    23. Trends in revision circumcision at pediatric hospitals. Clin Pediatr (Phila). 2013 Aug; 52(8):699-706. Kokorowski PJ, Routh JC, Hubert K, Graham DA, Nelson CP. PMID: 23820002.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    24. The Publication Ranking Score for pediatric urology: quantifying thought leadership within the subspecialty. J Pediatr Urol. 2013 Dec; 9(6 Pt B):1108-1113. Lloyd JC, Madden-Fuentes RJ, Nelson CP, Kokorowski PJ, Wiener JS, Ross SS, Kutikov A, Routh JC. PMID: 23622970.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    25. Prospective systematic intervention to reduce patient exposure to radiation during pediatric ureteroscopy. J Urol. 2013 Oct; 190(4 Suppl):1474-8. Kokorowski PJ, Chow JS, Strauss KJ, Pennison M, Tan W, Cilento B, Nelson CP. PMID: 23473898.
      View in: PubMed   Mentions: 3     Fields:    Translation:HumansPHPublic Health
    26. Quality assessment of economic analyses in pediatric urology. Urology. 2013 Feb; 81(2):263-7. Kokorowski PJ, Routh JC, Nelson CP. PMID: 23374775.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    27. In utero closure of myelomeningocele does not improve lower urinary tract function. J Urol. 2012 Oct; 188(4 Suppl):1567-71. Lee NG, Gomez P, Uberoi V, Kokorowski PJ, Khoshbin S, Bauer SB, Estrada CR. PMID: 22917751.
      View in: PubMed   Mentions: 13     Fields:    Translation:Humans
    28. Association of urolithiasis with systemic conditions among pediatric patients at children's hospitals. J Urol. 2012 Oct; 188(4 Suppl):1618-22. Hanna RF, Ward TJ, Chow DS, Lagana SM, Moreira RK, Emond JC, Weintraub JL, Prince MR, Kokorowski PJ, Routh JC, Hubert KC, Graham DA, Nelson CP. PMID: 22906655; PMCID: PMC4005878.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    29. 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. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. PMID: 22906647.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    30. Prospective measurement of patient exposure to radiation during pediatric ureteroscopy. J Urol. 2012 Apr; 187(4):1408-14. Hanna RF, Ward TJ, Chow DS, Lagana SM, Moreira RK, Emond JC, Weintraub JL, Prince MR, Kokorowski PJ, Chow JS, Strauss K, Pennison M, Routh JC, Nelson CP. PMID: 22341275; PMCID: PMC3810162.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansPHPublic Health
    31. Long-term incidence of urinary tract infection after ureteral reimplantation for primary vesicoureteral reflux. J Pediatr Urol. 2013 Feb; 9(1):92-8. Nelson CP, Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB. PMID: 22261484.
      View in: PubMed   Mentions: 6     Fields:    Translation:Humans
    32. Durability of antireflux effect of ureteral reimplantation for primary vesicoureteral reflux: findings on long-term cystography. Urology. 2012 Mar; 79(3):675-9. Hubert KC, Kokorowski PJ, Huang L, Prasad MM, Rosoklija I, Retik AB, Nelson CP. PMID: 22245304.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    33. Racial variation in timing of pyeloplasty: prenatal versus postnatal diagnosis. J Urol. 2011 Dec; 186(6):2386-91. Routh JC, Pennison M, Rosoklija I, Dobbins S, Kokorowski PJ, Hubert KC, Huang L, Nelson CP. PMID: 22014821.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    34. Screening for malignancy after augmentation cystoplasty in children with spina bifida: a decision analysis. J Urol. 2011 Oct; 186(4):1437-43. Kokorowski PJ, Routh JC, Borer JG, Estrada CR, Bauer SB, Nelson CP. PMID: 21855939.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    35. 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. Routh JC, Grant FD, Kokorowski PJ, Nelson CP, Fahey FH, Treves ST, Lee RS. PMID: 21868595.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    36. Use of the ureteral access sheath during ureteroscopy in children. J Urol. 2011 Oct; 186(4 Suppl):1728-33. Wang HH, Huang L, Routh JC, Kokorowski P, Cilento BG, Nelson CP. PMID: 21855908.
      View in: PubMed   Mentions: 8     Fields:    Translation:Humans
    37. 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. Abbott MM, Kokorowski PJ, Meara JG. PMID: 21763828.
      View in: PubMed   Mentions: 9     Fields:    Translation:Humans
    38. Editorial comment. Urology. 2011 May; 77(5):1253; author reply 1253. Kokorowski P, De Filippo RE, Koh CJ. PMID: 21539975.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    39. Costs and consequences of universal sibling screening for vesicoureteral reflux: decision analysis. Pediatrics. 2010 Nov; 126(5):865-71. Routh JC, Grant FD, Kokorowski P, Lee RS, Fahey FH, Treves ST, Nelson CP. PMID: 20956427.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
    40. Evaluation of pediatric nephrolithiasis. Indian J Urol. 2010 Oct; 26(4):531-5. Kokorowski PJ, Hubert K, Nelson CP. PMID: 21369386.
      View in: PubMed   Mentions:
    41. Variations in timing of surgery among boys who underwent orchidopexy for cryptorchidism. Pediatrics. 2010 Sep; 126(3):e576-82. Kokorowski PJ, Routh JC, Graham DA, Nelson CP. PMID: 20732947.
      View in: PubMed   Mentions: 22     Fields:    Translation:Humans
    42. Straight-arm positioning and port placement for pediatric robotic-assisted laparoscopic renal surgery. J Robot Surg. 2010 May; 4(1):29-32. Chandrasoma S, Kokorowski P, Peters CA, Koh CJ. PMID: 27638569.
      View in: PubMed   Mentions:    Fields:    
    43. The Society for Fetal Urology consensus statement on the evaluation and management of antenatal hydronephrosis. J Pediatr Urol. 2010 Jun; 6(3):212-31. 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. PMID: 20399145.
      View in: PubMed   Mentions: 101     Fields:    Translation:Humans
    44. Pediatric robot-assisted laparoscopic excision of urachal cyst and bladder cuff. J Endourol. 2008 Oct; 22(10):2385-8; discussion 2388. Yamzon J, Kokorowski P, De Filippo RE, Chang AY, Hardy BE, Koh CJ. PMID: 18937602.
      View in: PubMed   Mentions: 2     Fields:    Translation:Humans
    45. Evaluation of immediate endoscopic realignment as a treatment modality for traumatic urethral injuries. J Trauma. 2008 Jun; 64(6):1443-9; discussion 1449-50. Hadjizacharia P, Inaba K, Teixeira PG, Kokorowski P, Demetriades D, Best C. PMID: 18545107.
      View in: PubMed   Mentions: 18     Fields:    Translation:Humans
    46. Stem cells and tissue engineering applications of the genitourinary tract. Pediatr Res. 2008 May; 63(5):472-7. Yamzon JL, Kokorowski P, Koh CJ. PMID: 18427290.
      View in: PubMed   Mentions: 7     Fields:    Translation:HumansCells
    47. Ex vivo whole embryonic kidney culture: a novel method for research in development, regeneration and transplantation. J Urol. 2008 Jan; 179(1):365-70. Giuliani S, Perin L, Sedrakyan S, Kokorowski P, Jin D, De Filippo R. PMID: 18006007.
      View in: PubMed   Mentions: 8     Fields:    Translation:Animals
    48. Emergency department presentation of pediatric stroke. Pediatr Emerg Care. 2003 Oct; 19(5):320-8. Calder K, Kokorowski P, Tran T, Henderson S. PMID: 14578831.
      View in: PubMed   Mentions: 2     Fields:    Translation:HumansPHPublic Health
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