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909 S Fair Oaks AvePasadena, CA 91105
Phone+1 626-389-9300
Fax+1 626-389-9336
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Education & Training
University of California Davis HealthResidency, Anesthesiology, 2012 - 2015
University of California (San Francisco) School of MedicineInternship, Transitional Year, 2011 - 2012
Wake Forest School of Medicine of Wake Forest Baptist Medical CenterClass of 2011
Certifications & Licensure
CA State Medical License 2013 - 2026
American Board of Anesthesiology Anesthesiology
Awards, Honors, & Recognition
- Fellow (FACS) American College of Surgeons
Publications & Presentations
PubMed
- Preemptive Methocarbamol to Prevent Muscle Spasm After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis.Lloyd Halpern, De-An Zhang, K T Perrins, Clark J Kogan, Kirk A Ryan
Anesthesia and Analgesia. 2025-02-01 - 2 citationsContinuous Epidural Analgesia (CEA) via Single Catheter Providing Profound Analgesia for Pediatric Patients Following Posterior Spinal Fusion (PSF) in Adolescent Idiop...Lloyd M Halpern, Abby R Velarde, De-An Zhang, William Bronson, Clark Kogan
Cureus. 2023-04-01 - 8 citationsEffect of gabapentin on length of stay, opioid use, and pain scores in posterior spinal fusion for adolescent idiopathic scoliosis: a retrospective review across a mul...De-An Zhang, Bruce Brenn, Robert Cho, Amer Samdani,
BMC Anesthesiology. 2023-01-07
Journal Articles
- Disposal of unused opioids using an at-home disposal methodZhang, De-An, Marilan Luong, Emmanuel Barragan, Frederic Bushnell, Robert Cho, and Selina Poon, Journal of the Pediatric Orthopaedic Society of North America 3, 2/1/2021
Professional Memberships
- Member
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