Dr. Zachary J. Collier, MD, MS

Dr. Zachary J. Collier, M.D., M.S., is an Operation Smile Global Surgery Fellow and trainee at the University of Southern California's Plastic & Reconstructive Surgery residency program. As one of the 2020-2022 Global Surgery Fellows for Operation Smile, I have been involved with many exciting and innovative Global Surgery initiatives related to capacity building, healthcare system strengthening, and sustainability endeavors. I am particularly focused on reconstructive and burn care in Sub-Saharan Africa, the Middle East, and Asia. My research focus includes burn care, nutrition, translational wound care, pediatric abuse & negligent injuries, and burn prevention strategies for Low- and Middle-Income Countries. I plan to pursue a life-long career in burn and reconstructive surgery with ongoing global surgery involvement through Operation Smile, Interburns, Shriners Hospital for Children, and USC.

Education History[edit | edit source]

Summary                                                                                             [edit | edit source]

2020 - Present: The University of Southern California MS in Clinical, Biomedical, and Translational Investigations

2020 - Present: The University of Southern California Tsao Global Surgery Fellowship

2017 - Present: The University of Southern California Keck School of Medicine, Plastic Surgery Residency Program

2012 - 2017: The University of Chicago Pritzker School of Medicine  , MD, June 2017

2008 - 2012: The University of Virginia, BA, Neuroscience; High Distinction: "An Exploration of the Underlying Mechanisms of Wavelength-Dependent Light Therapy for Seasonal Affective Disorder: Effects of Blue Light Therapy vs. Pulse White Light on Hippocampal Neurogenesis."

University[edit | edit source]

He received a B.A. in Neuroscience from the University of Virginia in 2012 and graduated with high distinction for his thesis titled "An Exploration of the Underlying Mechanisms of Wavelength-Dependent Light Therapy for Seasonal Affective Disorder: Effects of Blue Light Therapy vs. Pulse White Light on Hippocampal Neurogenesis." During his time at UVa, he worked with two NGOs - Aloha Medical Mission and East Coast Surgical Mission - to deliver reconstructive care in the Philippines with a particular focus on pediatrics, congenital conditions, and burns. This work inspired him to pursue a career in burn acute and reconstructive surgery through plastic surgical background with a focus on global surgery and global health.

Medical School[edit | edit source]

He then earned his M.D. from the University of Chicago Pritzker School of Medicine in 2017 where he performed research under the mentorship of Drs. Russell R. Reid, M.D., Ph.D., and Lawrence J. Gottlieb, M.D. in stem cell based tissue engineering, microsurgery, and burns. He was selected for the 2016 University of Chicago Calvin Fentress Research Fellowship Award which funded an additional research year where he focused on stem-cell research that utilized a self-engineered variable Pulsed Electromagnetic Field device (vPEMF) to stimulate adipose stem cell differentiation into bone and cartilage. His burn research at UChicago primarily focused on pediatric abuse and negligent burns, quality improvement interventions for burn evaluation, and microbiology profiles of burn wounds.

Surgical Training[edit | edit source]

Dr. Collier then matriculated at USC's Plastic & Reconstructive Surgery residency program in 2017 where he is undergoing training. Currently, he is also a Global Surgery Fellow with Operation Smile where he works on numerous projects related to reconstructive surgical education and workforce strengthening, health systems capacity building, burn infrastructure and treatment, peri-operative nutritional assessment and interventions, and development of partnerships for research networks in LMICs.

Research Bibliography[edit | edit source]

  1. Huang S, Choi KJ, Pham CH, Collier ZJ, Dang JM, Kiwanuka H, Sheckter CC, Yenikomshian HA, Gillenwater TJ. Homeless Tent Fires: A Descriptive Analysis of Tent Fires in the Homeless Population. J Burn Care Res. Published online May 31, 2021. doi:10.1093/jbcr/irab095
  2. Choi KJ, Williams EA, Pham CH, Collier ZJ, Dang J, Yenikomshian HA, Gillenwater TJ. Fractional CO2 laser treatment for burn scar improvement: A systematic review and meta-analysis. Burns. 2021;47(2):259-269. doi:10.1016/j.burns.2020.10.02
  3. Choi KJ, Pham CH, Kurakazu D, Collier ZJ, Carney JJ, Yenikomshian HA, Gillenwater TJ. Functional Outcomes in Patients with Hand Burns Receiving Long Term Hand Therapy. Journal of Burn Care & Research. Published online Pending Publication.
  4. Choi KJ, Pham CH, Collier ZJ, Mert M, Ota RK, Li R, Yenikomshian HA, Singh M, Gillenwater TJ, Kuza CM. The Predictive Capacity of American Society of Anesthesiologists Physical Status (ASA PS) Score in Burn Patients. J Burn Care Res. 2020;41(4):803-808. doi:10.1093/jbcr/iraa060
  5. Hulsebos IF, Pham CH, Collier ZJ, Fang M, Vrouwe SQ, Sugiyama A, Yenikomshian HA, Garner WL, Gillenwater J. Stimulant Abuse in Burn Patients Is Associated with an Increased Use of Hospital Resources. J Burn Care Res. Published online June 15, 2020. doi:10.1093/jbcr/iraa087
  6. Pham CH, Collier ZJ, CT Scheckter, HA Yenikomshian, TJ GIllenwater. Hand burns as an independent risk factor for poorer hospital outcomes: a study of the National Burn Repository. Journal of Burn Care & Research. Accepted for Publication.
  7. Pham CH, Vrouwe SQ, Tsai K, Ding L, Collier ZJ, Grote AC, Angell TE, Garner WL, Gillenwater TJ, Yenikomshian HA. Hypoglycemic episodes predict length of stay in patients with acute burns. J Crit Care. 2021;64:68-73. doi:10.1016/j.jcrc.2021.03.005
  8. Collier ZJ, Song DH. Serratus Anterior Flap for Chest Wall Reconstruction. In: Operative Techniques in Plastic Surgery. 1st ed. Wolters Kluwer; 2019.
  9. Collier ZJ, Pham CH, Carey JC, Gillenwater TJ. Burn Wound Management. In: Text and Atlas of Wound Diagnosis and Treatment. 2nd ed. New York : McGraw-Hill; 2019.
  10. Pham CH, Collier ZJ, Garner WL, Kuza CM, Gillenwater TJ. Measuring gastric residual volumes in critically ill burn patients - A systematic review. Burns. 2019;45(3):509-525. doi:10.1016/j.burns.2018.05.011
  11. Pham CH, Collier ZJ, Vrouwe SQ, et al. 29 The True Incidence of Inhalation Injury In Patients Referred To A Regional Burn Center. J Burn Care Res. 2019;40(Supplement_1):S23-S23. doi:10.1093/jbcr/irz013.033
  12. Pham CH, Fang M, Collier ZJ, Yenikomshian HA, Kuza CM, Gillenwater TJ. 370 Evaluating the Efficacy and Safety of Intraoperative Enteral Nutrition in Critically Ill Burn Patients: A Systematic Review and Meta-Analysis. J Burn Care Res. 2019;40(Supplement_1):S161-S162. doi:10.1093/jbcr/irz013.278
  13. Collier ZJ, Pham CH, Yenikomshian HA, Garner W, Gillenwater TJ. 508 The Unique Challenge of Road Rash Injuries: A Systematic Literature Review and Case Series Addressing A Poorly Understood Mechanism of Burn Injury. J Burn Care Res. 2019;40(Supplement_1):S230-S230. doi:10.1093/jbcr/irz013.400
  14. Pham CH, Larson JV, Collier ZJ, Vrouwe SQ, Yenikomshian HA, Gillenwater TJ. 474 Cyanoacrylate Glue for Sheet Graft Fixation in Patients with Burn Injuries. J Burn Care Res. 2019;40(Supplement_1):S210-S211. doi:10.1093/jbcr/irz013.368
  15. Pham CH, Collier ZJ, Fang M, Howell A, Gillenwater TJ. The role of collagenase ointment in acute burns: A systematic review and meta-analysis. J Wound Care. 2019;28(Sup2):S9-S15. doi:10.12968/jowc.2019.28.Sup2.S9
  16. Inbal A, Collier ZJ, Ho C-L, Gottlieb LJ. Modified Kunlin's Technique for Microsurgical End-to-End Anastomoses: A Series of 100 Flaps. J Reconstr Microsurg. 2019;35(6):430-437. doi:10.1055/s-0039-1677797
  17. Pham C, Collier Z, Gillenwater J. Changing the Way We Think About Burn Size Estimation. J Burn Care Res. 2019;40(1):1-11. doi:10.1093/jbcr/iry050
  18. Pham CH, Collier ZJ, Webb AB, Garner WL, Gillenwater TJ. How long are burn patients really NPO in the perioperative period and can we effectively correct the caloric deficit using an enteral feeding "Catch-up" protocol? Burns. 2018;44(8):2006-2010. doi:10.1016/j.burns.2018.07.005
  19. Pham CH, Collier ZJ, Gillenwater TJ. Anticoagulation in burn patients requiring neuromuscular blockade. Burns. 2018;44(8):2108-2109. doi:10.1016/j.burns.2018.09.014
  20. Ooi ASH, Butz DR, Fisher SM, Collier ZJ, Gottlieb LJ. Geometric Three-Dimensional End-to-Side Microvascular Anastomosis: A Simple and Reproducible Technique. J Reconstr Microsurg. 2018;34(4):258-263. doi:10.1055/s-0037-1612603.
  21. Collier ZJ, Pham CH, Gillenwater J. First Reported Use of Methylnaltrexone to Treat Opioid-Induced Constipation in a Pediatric Burn Patient. J Burn Care Res. 2018;39(suppl_1):S166-S166. doi:10.1093/jbcr/iry006.313.
  22. Collier ZJ, Pham CH, Gillenwater J. Changing the Way We Think About Burn Size Estimation. J Burn Care Res. 2018;39(suppl_1):S39-S40. doi:10.1093/jbcr/iry006.073.
  23. Pham CH, Gillenwater J, Nagengast E, McCullough M, Collier ZJ, Peng D, Garner W. Etanercept Is Safe and Efficacious for Treating Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis. J Burn Care Res. 2018;39(suppl_1):S48-S49. doi:10.1093/jbcr/iry006.090.
  24. Pham CH, Gillenwater J, Collier ZJ, Garner W. Challenging a Common Myth: Is Enteral Feeding Safe in Burn Patients on Vasopressors? J Burn Care Res. 2018;39(suppl_1):S72-S72. doi:10.1093/jbcr/iry006.133.
  25. Pham CH, Collier ZJ, Gillenwater J. How Long Are Burn Patients Really NPO in the Perioperative Period and Can We Effectively Correct the Caloric Deficit Using an Enteral Feeding "Catch-up" Protocol? J Burn Care Res. 2018;39(suppl_1):S21-S21. doi:10.1093/jbcr/iry006.036.
  26. Roy T, Butz DR, Collier ZJ, Song DH. C-Y Trilobed Flap for Improved Donor-Site Morbidity in Nipple-Areola Complex Reconstruction. In: Nipple-Areolar Complex Reconstruction. Springer, Cham; 2017:513-515. doi:10.1007/978-3-319-60925-6_65.
  27. Collier ZJ, Gottlieb LJ, Alverdy JC. Stochasticity among Antibiotic-Resistance Profiles of Common Burn-Related Pathogens over a Six-Year Period. Surgical Infections. 2017;18(3):327-335. doi:10.1089/sur.2016.191.
  28. Collier ZJ, Ramaiah V, Glick JC, Gottlieb LJ. A 6-Year Case-Control Study of the Presentation and Clinical Sequelae for Noninflicted, Negligent, and Inflicted Pediatric Burns. J Burn Care Res. 2017;38(1):e101-e124. doi:10.1097/BCR.0000000000000408.
  29. Collier ZJ, Roughton M, & Gottlieb LJ. Negligent and Inflicted Burns in Children. Clinics in Plastic Surgery. 2017;44(3):467-477. doi:10.1016/j.cps.2017.02.022.
  30. Green JD, Tollemar V, Dougherty M, Yan Z, Yin L, Ye J, Collier Z, Mohammed MK, Haydon RC, Luu HH, Kang R, Lee MJ, Ho SH, He TC, Shi LL, Athiviraham A. Multifaceted signaling regulators of chondrogenesis: Implications in cartilage regeneration and tissue engineering. Genes Dis. 2015;2(4):307-327. doi:10.1016/j.gendis.2015.09.003
  31. Butz DR, Collier ZJ, O'Connor A, Magdziak M, Gottlieb LJ. Is palmar surface area a reliable tool to estimate burn surface areas in obese patients? J Burn Care Res. 2015;36(1):87-91. doi:10.1097/BCR.0000000000000146