Andrew Scott Little MD FAANS, FACS

Neurosurgery•Phoenix, AZ

Brain & Spinal Tumor, Pituitary Surgery, Skull Base

Surgical Director Barrow Pituitary Center and Skull Base Team

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2910 N 3rd AvePhoenix, AZ 85013
Phone+1 602-406-2596
Fax+1 602-294-4492

Education & Training

University of California, Los AngelesMBA, Business, 2019 - 2022
Barrow Neurological Institute at St Joseph's Hospital and Medical CenterResidency, Neurological Surgery, 2004 - 2010
University of California, Irvine, School of MedicineClass of 2003
Royal Prince of Wales Hospital - Syndey AustraliaFellowship, Minimally Invasive Cranial Neurosurgery

Certifications & Licensure

AZ State Medical License 2010 - 2027
American Board of Neurological Surgery Neurological Surgery
UPMCGamma Knife Radiosurgery

Awards, Honors, & Recognition

Best Clinical Abstract North American Skull Base Society, 2019
Integra Award Foundation Award American Association of Neurological Surgeons, 2018
Skull Base Surgery Award AANS/CNS, 2018
CMS Meaningful Use Stage 1 Certification Centricity Practice Solution EMR, GE Healthcare, 2011-2013
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Clinical Trials

Barrow Nasal Inventory Survey Start of enrollment: 2010 Oct 01
Completed
Rhinological Outcomes in Endonasal Pituitary Surgery Start of enrollment: 2011 Oct 01
Completed
Transsphenoidal Extent of Resection Study Start of enrollment: 2015 Feb 01
Completed
Not Applicable
Post-Operative Water Load Following Transsphenoidal Pituitary Surgery Start of enrollment: 2016 Mar 07
Completed
Not Applicable
Prophylactic Oral Antibiotics on Sinonasal Outcomes Following Endoscopic Transsphenoidal Surgery for Pituitary Lesions Start of enrollment: 2017 Jul 01
Unknown status
Phase 4
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Publications & Presentations

PubMed

Outcome metrics for primary endoscopic endonasal surgery for low-risk patients with Cushing's disease: an evidence-based position statement from the Registry of Adenom...
Michael Karsy, Varun R Kshettry, James J Evans, Garni Barkhoudarian, Won Kim
Journal of Neurosurgery. 2025-10-01
A Multicenter Study of Unplanned Hospital Readmissions after Transsphenoidal Surgery for Cushing's Disease.
Mark A Pacult, Michael Karsy, James J Evans, Won Kim, Donato R Pacione
Journal of Neurological Surgery. Part B, Skull Base. 2025-10-01
Cushing Disease Clinical Phenotype and Tumor Behavior Vary With Age: Diagnostic and Perioperative Implications.
Jorge Eduardo Salcedo-Sifuentes, Ryan Shih, Anthony P Heaney, Marvin Bergsneider, Marilene B Wang
The Journal of Clinical Endocrinology and Metabolism. 2025-08-07

Grant Support

Advancing Targeted Therapies for Cushing's Disease Using Pituitary Neuroendocrine Tumor OrganoidsUNIVERSITY OF GEORGIA2025–2029
The National Biorepository and Resource for Pituitary Neuroendocrine Tumor Translational Research (BioPitNeT)UNIVERSITY OF ARIZONA2024–2029
Development and Standardization of a Novel Pituitary Adenoma Organoid Model for the Study and Treatment of Cushing's DiseaseUNIVERSITY OF ARIZONA2023–2026

Professional Memberships