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Photo of  Greg R. Dion, MD

Greg R. Dion, MD

Associate Professor of Clinical

Physician Scientist

Otolaryngology, Head & Neck Surgery | College of Medicine

Board Certifications & Licenses

American Board of Otolaryngology (Certification Date: 20160601)

Contact Information

Clinical Interests

Otolaryngology

Laryngotracheal Stenosis

Professional Voice

Subglottic Stenosis

Vocal Cord Polyps, Cysts, and Nodules

Vocal fold paralysis

Zenker Diverticulum

Peer Reviewed Publications

Luke, Alex S; Logan, Ashley M; Gawlik, Alexandria E; Dion, Gregory R 2022. Autologous Lipoaugmentation Long-Term Clinical Outcomes: A Systematic Review. The Laryngoscope, 132 5, 1042-1053

Tang, Jessica A; Amadio, Grace; Nagappan, Lavanya; Schmalbach, Cecelia E; Dion, Gregory R 2022. Laryngeal inhalational injuries: A systematic review. Burns : journal of the International Society for Burn Injuries, 48 1, 23-33

Tibbetts, Kathleen M; Dion, Gregory R; Dominguez, Laura M; Loochtan, Michael J; Simpson, C Blake 2022. In-Office Superior Laryngeal Nerve Block for Paralaryngeal Pain and Odynophonia. The Laryngoscope, 132 2, 401-405

Dion, Gregory R; De la Chapa, Julian S; Bettenhausen, Whitney; Dominguez, Laura M; Simpson, C Blake 2021. Differing Progression to Posterior Glottic Stenosis in Autoimmune and Idiopathic Subglottic Stenosis. The Laryngoscope, 131 8, 1816-1820

Dominguez, Laura M; Dion, Gregory R 2021. In Response to Letter to the Editor Regarding Patients With Dysphagia Due to Neurodegenerative Disease May Profit From Early FEES. The Laryngoscope, 131 2, E339

Duvall, Amber; Dion, Gregory R 2021. Characterization of Vocal Fold Pathology in Military Drill Instructors. Journal of voice : official journal of the Voice Foundation, ,

Hughes, Charlotte K; Christensen, Christine L; Maturo, Stephen C; O'Connor, Peter R; Dion, Gregory R 2021. Organic vs. Inorganic Tracheobronchial Airway Foreign Body Aspiration: Does Type/Duration Matter? The Laryngoscope, 131 3, 490-495

Hughes, Charlotte K; McGarey, Patrick; Morrison, Danielle; Gawlik, Alexandria E; Dominguez, Laura; Dion, Gregory R 2021. Vocal Fold Thinning in Transgender Patients. Journal of voice : official journal of the Voice Foundation, ,

Johnson, Christopher M; Luke, Alex S; Jacobsen, Christian; Novak, Nicholas; Dion, Gregory R 2021. State of the Science in Tracheal Stents: A Scoping Review. The Laryngoscope, ,

McGarey, Patrick O; Bitar, Ryan; Hughes, Charlotte K; Hodson, Noah; Harris, Edward A; Dominguez, Laura M; Dion, Gregory R; Simpson, C Blake 2021. Correlation of Glottic Gap and Voice Impairment in Presbyphonia. The Laryngoscope, 131 7, 1594-1598

McGarey, Patrick O; Collins, Alissa; Dominguez, Laura M; Dion, Gregory R; Simpson, Charles Blake 2021. Treatment of Vocal Fold Polyps with In-Office Potassium Titanyl Phosphate (KTP) Laser Ablation in Professional Singers. Journal of voice : official journal of the Voice Foundation, 35 5, 800-803

Miar, Solaleh; Dion, Gregory R; Montelongo, Sergio; Ong, Joo L; Bizios, Rena; Guda, Teja 2021. Development of a Bioinspired, Self-Adhering, and Drug-Eluting Laryngotracheal Patch. The Laryngoscope, 131 9, 1958-1966

Schauer, Steven G; Naylor, Jason F; Dion, Gregory; April, Michael D; Chung, Kevin K; Convertino, Victor A 2021. An Analysis of Airway Interventions in the Setting of Smoke Inhalation Injury on the Battlefield. Military medicine, 186 5-6, e474-e479

Tye, Cooper B; Gardner, Philip A; Dion, Gregory R; Simpson, C Blake; Dominguez, Laura M 2021. Impact of Fiberoptic Endoscopic Evaluation of Swallowing Outcomes and Dysphagia Management in Neurodegenerative Diseases. The Laryngoscope, 131 4, 726-730

Dion, Gregory R; Guda, Teja; Mukudai, Shigeyuki; Bing, Renjie; Lavoie, Jean-Francois; Branski, Ryan C 2020. Quantifying vocal fold wound-healing biomechanical property changes. The Laryngoscope, 130 2, 454-459

Dion, Gregory R; Pingree, Christian S; Rico, Pedro J; Christensen, Christine L 2020. Laryngeal Thermal Injury Model. Journal of burn care & research : official publication of the American Burn Association, 41 3, 626-632

Logan, Ashley M; Gawlik, Alexandria E; Aden, James K; Jarvis, Natalie C; Dion, Gregory R 2020. Pharyngoesophageal Segment Distention Across Volumes and Pathology. Journal of speech, language, and hearing research : JSLHR, 63 11, 3594-3599

Dion, Gregory R; Lavoie, Jean-Francois; Coelho, Paulo; Amin, Milan R; Branski, Ryan C 2019. Automated Indentation Mapping of Vocal Fold Structure and Cover Properties Across Species. The Laryngoscope, 129 1, E26-E31

Dion, Gregory R; Nielsen, Skyler W 2019. In-Office Laryngology Injections. Otolaryngologic clinics of North America, 52 3, 521-536

Jayawardena, Asitha; Lowery, Anne S; Wootten, Christopher; Dion, Gregory R; Summitt, J Blair; McGrane, Stuart; Gelbard, Alexander 2019. Early Surgical Management of Thermal Airway Injury: A Case Series. Journal of burn care & research : official publication of the American Burn Association, 40 2, 189-195

Marcus, Sonya; Timen, Micah; Dion, Gregory R; Fritz, Mark A; Branski, Ryan C; Amin, Milan R 2019. Cost Analysis of Channeled, Distal Chip Laryngoscope for In-office Laryngopharyngeal Biopsies. Journal of voice : official journal of the Voice Foundation, 33 4, 575-579

Ortiz, Alexandra S; Lawton, Alexandria; Rives, Elizabeth; Gutierrez, Gerry; Dion, Gregory R 2019. Correlating videofluoroscopic swallow study findings with subjective globus location. The Laryngoscope, 129 2, 335-338

Pearson, Joseph J; Ortiz, Alexandra S; Montelongo, Sergio; Simpson, C Blake; Guda, Teja; Dion, Gregory R 2019. Quantification of injection force mechanics during injection laryngoplasty. The Laryngoscope, 129 5, 1060-1066

Benedict, Peter A; Ruiz, Ryan; Verma, Avanti; Dion, Gregory R; Oh, Philmo; Wang, Binhuan; Ahmed, Omar H; Hiwatashi, Nao; Bing, Renjie; Victor, Kristen; Hu, Kenneth S; Johnson, Aaron; Branski, Ryan C; Amin, Milan R 2018. The effects of concurrent chemoradiation therapy to the base of tongue in a preclinical model. The Laryngoscope, 128 8, 1783-1790

Benedict, Peter A; Ruiz, Ryan; Yoo, MiJin; Verma, Avanti; Ahmed, Omar H; Wang, Binhuan; Dion, Gregory R; Voigt, Andrew; Merati, Albert; Rosen, Clark A; Amin, Milan R; Branski, Ryan C 2018. Laryngeal distribution of recurrent respiratory papillomatosis in a previously untreated cohort. The Laryngoscope, 128 1, 138-143

Dion, Gregory R; Benedict, Peter A; Amin, Milan R; Branski, Ryan C 2018. Morbidity and mortality associated with preclinical tracheostomy models. The Laryngoscope, 128 2, E68-E71

Dion, Gregory R; Benedict, Peter A; Coelho, Paulo G; Amin, Milan R; Branski, Ryan C 2018. Impact of medialization laryngoplasty on dynamic nanomechanical vocal fold structure properties. The Laryngoscope, 128 5, 1163-1169

Dion, Gregory R; Fritz, Mark A; Teng, Stephanie E; Marcus, Sonya; Fang, Yixin; Branski, Ryan C; Amin, Milan R 2018. Impact of vocal fold augmentation and laryngoplasty on dyspnea in patients with glottal incompetence. The Laryngoscope, 128 2, 427-429

Hiwatashi, Nao; Kraja, Iv; Benedict, Peter A; Dion, Gregory R; Bing, Renjie; Rousseau, Bernard; Amin, Milan R; Nalband, Danielle M; Kirshenbaum, Kent; Branski, Ryan C 2018. Nanoparticle delivery of RNA-based therapeutics to alter the vocal fold tissue response to injury. The Laryngoscope, 128 5, E178-E183

Scalzitti, Nicholas J; O'Connor, Peter D; Nielsen, Skyler W; Aden, James K; Brock, Matthew S; Taylor, David M; Mysliwiec, Vincent; Dion, Gregory R 2018. Obstructive Sleep Apnea is an Independent Risk Factor for Hospital Readmission. Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 14 5, 753-758

Stevens, Bryan J; Geer, Ashley M; Dion, Gregory R; Laury, Adrienne M; Scalzitti, Nicholas J 2018. Cricopharyngeal Muscle Dysfunction Following Hypoglossal Nerve Stimulator Placement. JAMA otolaryngology-- head & neck surgery, 144 10, 948-949

Benedict, Peter A; Abdou, Rania M; Dion, Gregory R; Woo, Peak; Branski, Ryan C; Amin, Milan R 2017. Association of alirocumab therapy with inflammatory lesions of the vocal folds: A case report. The Laryngoscope, 127 7, 1652-1654

Dion, Gregory R; Achlatis, Efstratios; Teng, Stephanie; Fang, Yixin; Persky, Michael; Branski, Ryan C; Amin, Milan R 2017. Changes in Peak Airflow Measurement During Maximal Cough After Vocal Fold Augmentation in Patients With Glottic Insufficiency. JAMA otolaryngology-- head & neck surgery, 143 11, 1141-1145

Dion, Gregory R; Coelho, Paulo G; Teng, Stephanie; Janal, Malvin N; Amin, Milan R; Branski, Ryan C 2017. Dynamic nanomechanical analysis of the vocal fold structure in excised larynges. The Laryngoscope, 127 7, E225-E230

Dion, Gregory R; Teng, Stephanie E; Achlatis, Efstratios; Fang, Yixin; Amin, Milan R 2017. Treatment of Neurogenic Cough with Tramadol: A Pilot Study. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 157 1, 77-79

Dion, Gregory R; Teng, Stephanie; Bing, Renjie; Hiwatashi, Nao; Amin, Milan R; Branski, Ryan C 2017. Development of an in vivo model of laryngeal burn injury. The Laryngoscope, 127 1, 186-190

Dion, Gregory R; Teng, Stephanie; Boyd, Leslie R; Northam, Antonia; Mason-Apps, Charlotte; Vieira, Dorice; Amin, Milan R; Branski, Ryan C 2017. Adjuvant Human Papillomavirus Vaccination for Secondary Prevention: A Systematic Review. JAMA otolaryngology-- head & neck surgery, 143 6, 614-622

Hiwatashi, Nao; Benedict, Peter A; Dion, Gregory R; Bing, Renjie; Kraja, Iv; Amin, Milan R; Branski, Ryan C 2017. SMAD3 expression and regulation of fibroplasia in vocal fold injury. The Laryngoscope, 127 9, E308-E316

Taufique, Zahrah; Dion, Gregory R; Amin, Milan R 2017. Asystole During Direct Laryngoscopy for Vocal Fold Injection in a Healthy Patient. Journal of voice : official journal of the Voice Foundation, 31 4, 517.e19-517.e21

Teng, Stephanie E; Dion, Gregory R; Sin, Danielle N; Hiwatashi, Nao; Benedict, Peter A; Amin, Milan R; Branski, Ryan C 2017. Imiquimod Injection to Rabbit Vocal Folds: A Preliminary, Preclinical Investigation. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 156 4, 702-705

Barrera, José E; Dion, Gregory R 2016. Predicting Surgical Response Using Tensiometry in OSA Patients after Genioglossus Advancement with Uvulopalatopharyngoplasty. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 154 3, 558-63

Branski, Ryan C; Dion, Gregory R; Best, Simon 2016. Letter to the Editor: Concerning "Xenograft Model for Therapeutic Drug Testing in Recurrent Respiratory Papillomatosis". The Annals of otology, rhinology, and laryngology, 125 11, 947-948

Dion, Gregory R; Jeswani, Seema; Roof, Scott; Fritz, Mark; Coelho, Paulo G; Sobieraj, Michael; Amin, Milan R; Branski, Ryan C 2016. Functional assessment of the ex vivo vocal folds through biomechanical testing: A review. Materials science & engineering. C, Materials for biological applications, 64 , 444-453

Dion, Gregory R; Packer, Mark D 2015. Anaplastic large-cell lymphoma presenting as a nasopharyngeal mass and cervical lymphadenopathy. Ear, nose, & throat journal, 94 6, E26-9

Kao, Erica Y; Scalzitti, Nicholas J; Dion, Gregory R; Bowe, Sarah N 2015. Trichobezoar Causing Airway Compromise during Esophagogastroduodenoscopy. Case reports in medicine, 2015 , 806857

Nielsen, Skyler W; Stevens, Jayne R; Dion, Gregory R; Howard, N Scott 2015. Dyspnea, Dysphonia, and Cough: Varied Presentations of Tracheobronchopathia Osteochondroplastica. The Annals of otology, rhinology, and laryngology, 124 10, 829-33

Connor, Matthew P; Dion, Gregory R; Borgman, Matthew; Maturo, Stephen 2014. The pediatric sedation unit: a prospective analysis of parental satisfaction. International journal of pediatric otorhinolaryngology, 78 12, 2165-8

Dion, Gregory R 2014. Commentary on "does melatonin have therapeutic use in tinnitus?". Southern medical journal, 107 6, 367

Dion, Gregory R; Miller, Courtney L; O'Connor, Peter D; Howard, N Scott 2014. Correlation of otologic complaints in soldiers with speech disorders after traumatic brain injury. Journal of voice : official journal of the Voice Foundation, 28 1, 88-91

Dion, Gregory R; Miller, Courtney L; Ramos, Rosemarie G; O'Connor, Peter D; Howard, N Scott 2013. Characterization of voice disorders in deployed and nondeployed US army soldiers. Journal of voice : official journal of the Voice Foundation, 27 1, 57-60

Dion, Gregory Robert; Weitzel, Erik K; McMains, Kevin C 2013. Current approaches to diagnosis and management of rhinitis. Southern medical journal, 106 9, 526-31

Doellman, Mary S; Dion, Gregory R; Weitzel, Erik Kent; Reyes, Erika Gonzalez 2013. Immunotherapy in allergic fungal sinusitis: The controversy continues. A recent review of literature. Allergy & rhinology (Providence, R.I.), 4 1, e32-5

Dunn, Joel D; Dion, Gregory R; McMains, Kevin C 2013. Efficacy of nasal irrigations and nebulizations for nasal symptom relief. Current opinion in otolaryngology & head and neck surgery, 21 3, 248-51

Feldt, Brent; Dion, Gregory R; Weitzel, Erik K; McMains, Kevin C 2013. Acute sinusitis. Southern medical journal, 106 10, 577-81

Sarber, Kathleen M; Dion, Gregory Robert; Weitzel, Erik K; McMains, Kevin C 2013. Approaching chronic sinusitis. Southern medical journal, 106 11, 642-8

Dion, Gregory R; Eller, Robert L; Thomas, Roy F 2012. Diagnosing aerodynamic supraglottic collapse with rest and exercise flexible laryngoscopy. Journal of voice : official journal of the Voice Foundation, 26 6, 779-84

Morrison, Michele P; O'Rourke, Ashli; Dion, Gregory R; Eller, Robert L; Weinberger, Paul; Postma, Gregory N 2012. Hemodynamic changes during otolaryngological office-based flexible endoscopic procedures. The Annals of otology, rhinology, and laryngology, 121 11, 714-8

Yen Shipley, Nancy; Dion, Greg R; Bowers, William H 2009. Ulnar head implant arthroplasty: an intermediate term review of 1 surgeon's experience. Techniques in hand & upper extremity surgery, 13 3, 160-4

Carius, Brandon M; Dodge, Peter M; Hudson, Ian L; De Lorenzo, Robert A; Fisher, Andrew D; Dion, Gregory R; April, Michael D; Dye, Collin T; Schauer, Steven G . An Analysis of Prehospital Trauma Registry: After-Action Reviews on Airway Interventions in Afghanistan Medical journal (Fort Sam Houston, Tex.), PB 8-21-04/05/06 PB 8-21-04-05-06, 32-37

Dion, Gregory; Amin, Milan R; Branski, Ryan C . Treating Hoarseness With Proton Pump Inhibitors. JAMA, 314 12, 1294-5

Rohrer, Joseph W; Dion, Greg R; Brenner, Pryor S; Abadie, Wesley M; McMains, Kevin C; Thomas, Roy F; Weitzel, Erik K . Surfactant improves irrigant penetration into unoperated sinuses. American journal of rhinology & allergy, 26 3, 197-200