Andy Yu-How Chang, MD

Title(s)Associate Professor Of Clinical Urology
SchoolKeck School of Medicine of Usc
AddressCHLA Division of Urology
Off Campus
Los Angeles CA 90027
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    Collapse Biography 
    Collapse Awards and Honors
    AAP Section of Urology2008Best Basic Science Paper
    USC Zumberge Interdisciplinary Award
    American Urological Foundation Scholar
    NIHK12 Recipient

    Collapse Overview 
    Collapse Overview
    Dr. Chang graduated from Stanford University with a B.S. in biological sciences and continued his education at USC for medical school and residency training in urology. Afterward, he matriculated to the prestigious pediatric urology fellowship program at Children’s Hospital of Philadelphia and University of Pennsylvania. While in Philadelphia, he distinguished himself as a superb researcher. He was also awarded a scholarship by the American Urological Association Foundation and appointed a National Institutes of Health sponsored researcher. Chang has garnered multiple awards at society and national meetings. Most recently, he contributed to the best basic science paper awarded at the 2008 American Academy of Pediatrics Section on Urology Meeting.

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    Collapse Publications
    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. Comparing the incidence of hypospadias across the United States: A contemporary analysis. J Pediatr Urol. 2025 Jan 08. Lavoie C, Chun B, Au M, Do C, Baker Z, Cortessis V, Sparks SS, Syed H, Chang AY. PMID: 39824718.
      View in: PubMed   Mentions:    Fields:    
    2. Novel CO2 loaded nanoparticle ultrasound-activated contrast agent: A potential urinary catheter-free modality to detect vesicoureteral reflux. J Pediatr Urol. 2025 Jan 08. Lavoie C, Nussbaum Z, Syed H, Chun B, Do V, Nguyen D, Surapaneni A, Hamid E, Rayes A, De La Torre D, Ramirez O, Rosales E, Williams TJ, Yen JT, Chang AY. PMID: 39828470.
      View in: PubMed   Mentions:    Fields:    
    3. Prevalence of disorders of sex development in patients with hypospadias and cryptorchidism. J Pediatr Urol. 2025 Feb; 21(1):71-77. Lavoie C, Chun B, Au M, Do C, Sparks SS, Chang AY. PMID: 39370332.
      View in: PubMed   Mentions:
    4. Continued use of scrotal ultrasounds for the workup of undescended testes: Confirmation bias and inaccuracies. J Paediatr Child Health. 2022 08; 58(8):1384-1389. Annick ET, Ko J, Baker ZG, Hannallah A, De Filippo RE, Chang AY. PMID: 35478367.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    5. Persistent Anhydramnios and Lower Urinary Tract Obstruction in a Patient With a Vesicoamniotic Shunt. Urology. 2022 07; 165:319-321. Hannallah A, Baker Z, Chang AY, Ko JS. PMID: 34843749.
      View in: PubMed   Mentions:    Fields:    Translation:Humans
    6. Association between severity of prenatally diagnosed hydronephrosis and receipt of surgical intervention postnatally among patients seen at a fetal-maternal center. BMC Urol. 2021 Apr 07; 21(1):54. Baker ZG, Hannallah A, Trabold M, Estell D, Deng C, Chang AY, Sparks SS, De Filippo R, Vasquez E. PMID: 33827528; PMCID: PMC8028200.
      View in: PubMed   Mentions: 1     Fields:    Translation:Humans
    7. 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; PMCID: PMC7542890.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    8. A stepwise treatment approach to neonatal genital prolapse. Pediatr Investig. 2018 Mar; 2(1):56-58. Thaker H, Jayaratna IS, Nakhoda ZK, Jaque J, Chang AY. PMID: 32851233; PMCID: PMC7331411.
      View in: PubMed   Mentions:
    9. A noncovalent, fluoroalkyl coating monomer for phosphonate-covered nanoparticles. Tetrahedron. 2013 Sep 09; 69(36):7741-7746. Li V, Chang AY, Williams TJ. PMID: 23913989; PMCID: PMC3728910.
      View in: PubMed   Mentions:
    10. Human capital gains associated with robotic assisted laparoscopic pyeloplasty in children compared to open pyeloplasty. J Urol. 2011 Oct; 186(4 Suppl):1663-7. Behan JW, Kim SS, Dorey F, De Filippo RE, Chang AY, Hardy BE, Koh CJ. PMID: 21862079.
      View in: PubMed   Mentions: 24     Fields:    Translation:Humans
    11. Early comparison of nephrectomy options in children (open, transperitoneal laparoscopic, laparo-endoscopic single site (LESS), and robotic surgery). BJU Int. 2012 Mar; 109(6):910-5. Kim PH, Patil MB, Kim SS, Dorey F, De Filippo RE, Chang AY, Hardy BE, Gill IS, Desai MM, Koh CJ. PMID: 21883858.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    12. Laparoendoscopic single-site nephrectomy in pediatric patients: initial clinical series of infants to adolescents. Urology. 2010 Dec; 76(6):1457-61. Koh CJ, De Filippo RE, Chang AY, Hardy BE, Berger A, Eisenberg M, Patil M, Aron M, Gill IS, Desai MM. PMID: 20970837.
      View in: PubMed   Mentions: 5     Fields:    Translation:Humans
    13. 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; PMCID: PMC3141736.
      View in: PubMed   Mentions: 3     Fields:    Translation:Humans
    14. Asynchronous bilateral renal venous thrombosis with subsequent development of cystic kidneys. J Pediatr Urol. 2007 Jun; 3(3):255-7. Chang AY, Schwab CW, Kaplan BS, Kolon TF. PMID: 18947749.
      View in: PubMed   Mentions:
    15. Laparoscopic renal denervation and nephropexy for autosomal dominant polycystic kidney disease related pain in adolescents. J Urol. 2006 Jun; 175(6):2274-6; discussion 2276. Resnick M, Chang AY, Casale P. PMID: 16697853.
      View in: PubMed   Mentions:
    16. Is ultrasound a safe alternative to voiding cystourethrogram for vesicoureteral reflux screening of siblings? Nat Clin Pract Urol. 2006 Jun; 3(6):308-9. Chang AY, Canning DA. PMID: 16763641.
      View in: PubMed   Mentions:
    17. Urethral foreign body management: a case report. ScientificWorldJournal. 2004 Jun 07; 4 Suppl 1:56-8. Chang AY, Koh CJ, Stein JP. PMID: 15349528; PMCID: PMC5956470.
      View in: PubMed   Mentions:
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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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