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Ronnie Guillet, M.D., Ph.D.

Contact Information

Phone Numbers

Office: (585) 275-2972

Fax: (585) 461-3614

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Faculty Appointments

Patient Care Setting



Dr. Guillet provides care to ill newborns who require neonatal intensive care. She is most interested in the care and treatment of newborns with early brain injury and seizures and collaborates with colleagues around the world with similar interests. She is also a member of the Neonatal Kidney Collaborative, an international group of neonatologists and pediatric nephrologists who are interested in neonatal kidney injury.


Dr. Guillet has an active clinical research program focusing on both neonatal brain and kidney. Both organ systems may be vulnerable during times of rapid maturational change and may be at risk from the effects of both intra- and extra-uterine insults. As the Rochester co-investigator for the NICHD Neonatal Research Network grant, she assists the PI and is responsible for network studies involving new treatments for neonatal brain injury. She is also a co-investigator for a PCORI-funded investigation of treatment of neonatal seizures. As a member of the Board of the Neonatal Kidney Collaborative and co-chair of the Research Committee, Dr. Guillet is involved in and responsible for helping develop clinical studies focused on acute kidney injury in neonates. Other areas of clinical research interest include the auditory brainstem evoked response, its use as a tool to evaluate brain maturation and its relationship to maternal iron status prior to delivery, and the use of EEG to identify neonates at risk for long term effects of prenatal exposure to opiates. Her work is supported in part by grants from the NIH, PCORI, and the Gerber Foundation.



MD | University of Rochester School of Medicine/Dentistry

Post-doctoral Training & Residency

07/01/1983 - 06/30/1985
Fellowship in Neonatology at Children's Hospital of Philadelphia

07/01/1982 - 06/30/1983
Residency in Pediatrics at University of CA at San Francisco School of Medicine

07/01/1980 - 06/30/1982
Internship in Pediatrics at UCSF Mount Zion Hospital/Medical Center of SF

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URMC Mentoring of Junior Faculty Award

Ruth A. Lawrence Faculty Service Award in Fellowship Training

Department of Pediatrics "Above and Beyond" Award

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Journal Articles

Chock VY, Kirpalani H, Bell EF, Tan S, Hintz SR, Ball MB, Smith E, Das A, Loggins YC, Sood BG, Chalak LF, Wyckoff MH, Kicklighter SD, Kennedy KA, Patel RM, Carlo WA, Johnson KJ, Watterberg KL, Sánchez PJ, Laptook AR, Seabrook RB, Cotten CM, Mancini T, Sokol GM, Ohls RK, Hibbs AM, Poindexter BB, Reynolds AM, DeMauro SB, Chawla S, Baserga M, Walsh MC, Higgins RD, Van Meurs KP, . "Tissue Oxygenation Changes After Transfusion and Outcomes in Preterm Infants: A Secondary Near-Infrared Spectroscopy Study of the Transfusion of Prematures Randomized Clinical Trial (TOP NIRS)." JAMA network open.. 2023 Sep 5; 6(9):e2334889. Epub 2023 Sep 05.

Harer MW, Griffin R, Askenazi DJ, Fuloria M, Guillet R, Hanna M, Schuh MP, Slagle C, Woroniecki R, , Charlton JR. "Caffeine and kidney function at two years in former extremely low gestational age neonates." Pediatric research.. 2023 Sep 2; Epub 2023 Sep 02.

Haynes N, Bell J, Griffin R, Askenazi DJ, Jetton J, Kent AL, . "Receipt of high-frequency ventilation is associated with acute kidney injury in very preterm neonates." Pediatric nephrology : journal of the International Pediatric Nephrology Association.. 2023 Aug 18; Epub 2023 Aug 18.

Books & Chapters

Chapter Title: Animal models for caffeine exposure in the perinatal period
Book Title: Neuromethods
Author List: Guillet R
Edited By: A.A. Boulton, G.B. Baker, P.H. Wu
Published By: The Humana Press Inc. 1992 in Totowa, NJ

Chapter Title: Developmental effects of neuroactive drugs
Book Title: Transplacental Effects on Fetal Health
Author List: Kellogg CK, Guillet R.
Edited By: G. Migaki, Inc.
Published By: Alan R. Liss 1988 in New York, NY