Christian S. Guay
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Christian S. Guay, MD, MS

Languages spoken: English, French

Clinical Locations

Primary Location

University of Utah Hospital

Anesthesiology
50 N Medical Dr
Salt Lake City , UT 84132
801-581-2121
Get Directions

University of Utah Hospital

SICU/ICU
50 N Medical Dr
Salt Lake City , UT 84132
801-581-2121
Get Directions

  • Specialties

    • Neuroanesthesia
    • Anesthesiology
    • Critical Care
    • Cardiothoracic Anesthesia

    Board Certification

    American Board of Anesthesiology (Sub: Critical Care Medicine)
    American Board of Anesthesiology
    National Board of Echocardiography (Advanced Perioperative TEE)
    American Board of Anesthesiology (Sub: Adult Cardiac Anesthesiology)

  • Board Certification and Academic Information

    Academic Departments Anesthesiology -Assistant Professor
    Board Certification
    American Board of Anesthesiology (Sub: Critical Care Medicine)
    American Board of Anesthesiology
    National Board of Echocardiography (Advanced Perioperative TEE)
    American Board of Anesthesiology (Sub: Adult Cardiac Anesthesiology)

    Education history

    Undergraduate Engineering, Neuroscience, Psychology - McGill University B.A.
    Professional Medical Medicine - Saba University School of Medicine M.D., M.S.
    Residency Anesthesiology - Washington University School of Medicine in St. Louis, Barnes-Jewish Hospital Resident
    Residency Anesthesiology - Washington University School of Medicine in St. Louis, Barnes-Jewish Hospital Chief Resident
    Fellowship Critical Care Medicine - Massachusetts General Hospital, Harvard Medical School Clinical Fellow
    Fellowship Adult Cardiothoracic Anesthesiology - Massachusetts General Hospital, Harvard Medical School Clinical Fellow

    Selected Publications

    Journal Article

    1. Ellenbogen J, Guay C (2023). Sound sleep in the intensive care unit: source-path-receiver model. Practical neurology, 22(7), 64-7.
    2. Guay CS, Bean CD, Kwon O, Brown E (2023). Recovery From Acute Respiratory Distress Syndrome Is Associated With Increasing Alpha Power in the Frontal Electroencephalogram During Propofol Sedation: A Case Report. A&A practice, 17(7), e01698. (Read full publication)
    3. Clephas PRD, Hoeks SE, Singh PM, Guay CS, Trivella M, Klimek M, Heesen (2023). Prognostic factors for chronic post-surgical pain after lung and pleural surgery: a systematic review with meta-analysis, meta-regression and trial sequential analysis. Anaesthesia, 78(8), 1005-1019. (Read full publication)
    4. Clephas PRD, Hoeks SE, Trivella M, Guay CS, Singh PM, Klimek M, Heesen (2021). Prognostic factors for chronic post-surgical pain after lung or pleural surgery: a protocol for a systematic review and meta-analysis. BMJ open, 11(6), e051554. (Read full publication)
    5. Guay CS, Hight D, Gupta G, Kafashan M, Luong AH, Avidan MS, Brown EN, Palanca BJ (2023). Breathe-squeeze: pharmacodynamics of a stimulus-free behavioural paradigm to track conscious states during sedation(¿). British journal of anaesthesia, 130(5), 557-566. (Read full publication)
    6. Nourmohammadi A, Swift JR, de Pesters A, Guay CS, Adamo MA, Dalfino JC, Ritaccio AL, Schalk G, Brunner (2023). Passive functional mapping of receptive language cortex during general anesthesia using electrocorticography. Clinical neurophysiology, 147, 31-44. (Read full publication)
    7. Guay CS, Kafashan M, Huels ER, Jiang Y, Beyoglu B, Spencer JW, Geczi K, Apakama G, Ju YS, Wildes TS, Avidan MS, Palanca BJ (2023). Postoperative Delirium Severity and Recovery Correlate With Electroencephalogram Spectral Features. Anesthesia and analgesia, 136(1), 140-151. (Read full publication)
    8. Kafashan M, Brian Hickman L, Labonte AK, Huels ER, Maybrier H, Guay CS, Subramanian S, Farber NB, Ching S, Hogan RE, Kelz MB, Avidan MS, Mashour GA, Palanca BJ (2022). Quiescence during burst suppression and postictal generalized EEG suppression are distinct patterns of activity. Clinical neurophysiology, 142, 125-132. (Read full publication)
    9. Gruenbaum SE, Guay CS, Gruenbaum BF, Konkayev A, Falegnami A, Qeva E, Prabhakar H, Nunes RR, Santoro A, Garcia DP, Quiñones-Hinojosa A, Bilotta (2021). Perioperative Glycemia Management in Patients Undergoing Craniotomy for Brain Tumor Resection: A Global Survey of Neuroanesthesiologists' Perceptions and Practices. World neurosurgery, 155, e548-e563. (Read full publication)
    10. Li KM, Baddigam R, Bethel M, Guay CS, Song Z, Sullivan S, Gregory S (2021). Anesthetic considerations for transcatheter mitral and aortic valve procedures: An introduction and overview of current literature. Current anesthesiology reports, 11(3), 284-91.
    11. Kafashan MM, Hyche O, Nguyen T, Smith SK, Guay CS, Wilson E, Labonte AK, Guan MJ, Lucey BP, Ju YS, Palanca BJ (2021). Perioperative sleep in geriatric cardiac surgical patients: a feasibility study using a wireless wearable device. British journal of anaesthesia, 126(6), e205-e208. (Read full publication)
    12. Hickman LB, Kafashan M, Labonte AK, Chan CW, Huels ER, Guay CS, Guan MJ, Ching S, Lenze EJ, Farber NB, Avidan MS, Hogan RE, Palanca BJ (2021). Postictal generalized electroencephalographic suppression following electroconvulsive therapy: Temporal characteristics and impact of anesthetic regimen. Clinical neurophysiology, 132(4), 977-983. (Read full publication)
    13. Smith SK, Nguyen T, Labonte AK, Kafashan M, Hyche O, Guay CS, Wilson E, Chan CW, Luong A, Hickman LB, Fritz BA, Emmert D, Graetz TJ, Melby SJ, Lucey BP, Ju YS, Wildes TS, Avidan MS, Palanca BJ (2020). Protocol for the Prognosticating Delirium Recovery Outcomes Using Wakefulness and Sleep Electroencephalography (P-DROWS-E) study: a prospective observational study of delirium in elderly cardiac surgical patients. BMJ open, 10(12), e044295. (Read full publication)
    14. Fogarty AE, Guay CS, Simoneau G, Colorado BS, Segal GR, Werner JK Jr, Ellenbogen J (2019). Head Motion Predicts Transient Loss of Consciousness in Human Head Trauma: A Case-Control Study of Mixed Martial Artists. American journal of physical medicine & rehabilitation, 98(10), 859-865. (Read full publication)
    15. Guay CS, Plourde (2019). Handgrip dynamometry for continuous assessment of volitional control during induction of anesthesia: a prospective observational study. Canadian journal of anaesthesia = Journal canadien d'anesthesie, 66(1), 48-56. (Read full publication)
    16. Guay CS, Ellenbogen J (2017). Emergency Sleep Medicine. Seminars in neurology, 37(4), 471-480. (Read full publication)
    17. Baum TE, Adam E, Guay CS, Schamberg G, Kazemi M, Heldt T, Brown E (2024). Dynamic Estimation of Cardiovascular State From Arterial Blood Pressure Recordings. IEEE transactions on bio-medical engineering, PP, (Read full publication)
    18. Divya A, Guay CS, Streckenbach Scott, D'Alessandro (2025). Cor Triatriatum Sinisterum in a 67-Year-Old Presenting with Severe Mitral Regurgitation and Chronic Atrial Fibrillation. Annals of Cardiology Case Reports, 4(1), 1009.
    19. Divya A,Guay CS,Sundt TM,Bloom J (2024). Complete Aortomitral Curtain Dehiscence Resulting in Large Pseudoaneurysm 6 Weeks After Aortic Root Replacement. JACC. Case reports, 29(22), (Read full publication)
    20. Smith SK,Kafashan MM,Rios RL,Brown EN,Landsness EC,Guay CS,Palanca BJ (2024). Daytime dexmedetomidine sedation with closed-loop acoustic stimulation alters slow wave sleep homeostasis in healthy adults. BJA open, 10, (Read full publication)
    21. Guay CS,Khebir M,Shiva Shahiri T,Szilagyi A,Cole EE,Simoneau G,Badawy (2021). Evaluation of automated microvascular flow analysis software AVA 4: a validation study. Intensive care medicine experimental, 9(1), (Read full publication)
    22. Guay CS,Labonte AK,Montana MC,Landsness EC,Lucey BP,Kafashan MM,Haroutounian S,Avidan MS,Brown EN,Palanca BJ (2021). Closed-loop acoustic stimulation during sedation with dexmedetomidine (Class-d): Protocol for a within-subject, crossover, controlled, interventional trial with healthy volunteers. Nature and science of sleep, 13, 303-313. (Read full publication)
    23. Guay CS,Schanker B (2018). Neural Correlates of Pure Experience, Anesthesia, and Meditation States. AJOB neuroscience, 9(2), 115-117. (Read full publication)
    24. Guay CS,Schanker B (2017). Brain'Computer Interfaces and Interactive Capacity in Patients With Disorders of Consciousness. AJOB neuroscience, 8(3), 141-142. (Read full publication)
    25. Lang A, He D, Mueller A, Wang AA, Deng H, Houle T, Sundt T, Guay CS, Qu J (2025). Hypothermic Circulatory Arrest Is Associated with Increased Risk of Postoperative Delirium: A Retrospective Cohort Study. International Journal of Anesthesiology and Practice, 4(1), DOI: 10.58489/2994-2624/009.
    26. Guay CS, Agrawal U, Tseng B, Gallo S, Schreier DR, Brown E (2025). Clinical Electroencephalography for Anesthesiologists and Intensivists Part II: Physiologic Signatures and Active Management. Anesthesiology, 143(6), 1595¿1618.
    27. Chen AL, He M, Agrawal U, Gutierrez RG, Lee JM, Novak A, Elder JS, Purdon PL, Guay CS, Liu C (2025). Clonidine Conserves Sleep Spindle Properties and Age-Dependent Electroencephalogram Patterns Mirroring Physiologic Sleep in Infants Under Spinal Anesthesia. Anesthesia and analgesia, (Read full publication)
    28. Schreier DR, Fecchio M, Guay CS, Kovacs RG, Olchanyi M, Mueller AL, Houle TT, Edlow BL, Brown EN, Solt (2025). REcovery from DEXmedetomidine-Induced Unresponsiveness (REDEX): A Study Protocol for a Single Center, Parallel Arm, Non-Randomized, Controlled Pilot Trial in Healthy Volunteers. Nature and science of sleep, 17, 1259-1269. (Read full publication)

    Review

    1. Li KM,Baddigam R,Bethel M,Guay CS,Song Z,Sullivan S,Gregory (2021). Anesthesia Considerations for Transcatheter Mitral and Aortic Valve Procedures. Current anesthesiology reports, 11(3), 284-291. (Read full publication)

    Book Chapter

    1. Gruenbaum SE, Guay CS, Siller SS, Bilotta (2019). Endocrine Management in the Neurosurgical Patient. 205-16.
    2. Guay CS, Lee (2025). Monitoring Anesthetic Brain States.

    Editorial

    1. Palanca BJA, Guay C (2021). Associations between delirium and electroencephalographic markers: Notes from the field. Clinical neurophysiology, 132(1), 210-211. (Read full publication)
    2. Guay CS, Avidan M (2020). No Brain Is an Island. Anesthesia and analgesia, 130(6), 1568-1571. (Read full publication)

    Letter

    1. Palanca BJA,Kafashan M,Guay C (2023). In Response. Anesthesia and analgesia, 136(6), E37-E38. (Read full publication)
    2. Kaplon AW, Gallo S, Guay CS, Baker K (2025). A black swan spotted during emergence from general anaesthesia: alpha and delta oscillations present in a conversing patient. British journal of anaesthesia, 135(4), 1088-1090. (Read full publication)
    3. Kitae C, Guay CS, Johnson-Akeju S, Shelton K (2025). Biomarkers and Delirium in Critical Care: A Field for Future Investigation. Critical Care Medicine, 53(12), e2796-e2797.

    Research Lab

    Lab link