Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Clinical Fellow-Advanced Rhinology & Skull Base Surgery, Otolaryngology Head & Neck Surgery, Ohio State University 2015 - 2016
  • Resident, Otolaryngology Head & Neck Surgery, University of Miami 2010 - 2015
  • Research Fellow, Otolaryngology Head & Neck Surgery, University of Miami 2009 - 2010
  • M.D., St. Joseph University of Beirut (Lebanon) 2008
  • M.S., St. Joseph University of Beirut (Lebanon) 2008
• 

  Previous Appointments & Affiliations

  • Assistant Professor in Neurosurgery, Neurosurgery, Neurosurgery 2020 - 2022
  • Assistant Professor of Head and Neck Surgery and Communication Sciences, Head and Neck Surgery & Communication Sciences, Clinical Science Departments 2021 - 2022
  • Assistant Professor of Head and Neck Surgery and Communication Sciences, Head and Neck Surgery & Communication Sciences, Clinical Science Departments 2016 - 2020
  • Assistant Professor in Neurosurgery, Neurosurgery, Neurosurgery 2017 - 2020
• 

  Leadership & Clinical Positions at Duke

  • - Fellowship Co-Director Rhinology and Skull Base Surgery
    - Medical Director: Duke Skull Base Center
    
    
• Recognition
• 

  Awards & Honors

  • Excellence in resident mentorship award. Department of head and neck surgery and communication sciences. June 18, 2022
• Research
• 

  Selected Grants

  • Development of an Esthesioneuroblastoma culture model awarded by North American Skull Base Society 2023 - 2024
  • SinoNasal HPV Study awarded by Johns Hopkins University 2022 - 2024
  • Migraine Study - Godley Gift awarded by Frederick Godley, III 2021 - 2023
• 

  External Relationships

  • Doseddaily
• Publications & Artistic Works
• 

  Selected Publications

  • Books

    • Younis, R. T., and R. A. Hachem. Pediatric and adult sinonasal disorders, 2015.
    • Younis, R. T., and R. A. Hachem. Preface, 2015.

  • Academic Articles

    • Kothari, Dhruv Shreedhar, Lauren A. Linker, Tristan Tham, Andrew J. Maroda, Jenessa M. McElfresh, Judd H. Fastenberg, Ralph Abi Hachem, Lucas Elijovich, Lattimore Madison Michael, and Sanjeet V. Rangarajan. “Preoperative Embolization Techniques in the Treatment of Juvenile Nasopharyngeal Angiofibroma: A Systematic Review.” Otolaryngol Head Neck Surg, February 17, 2023. https://doi.org/10.1002/ohn.303.
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    • Issa, Khalil, Jordan Teitelbaum, Blaine D. Smith, Frances Wang, Feras Ackall, Zoukaa Sargi, Sanjeet V. Rangarajan, Sin-Ho Jung, David W. Jang, and Ralph Abi Hachem. “Nasal Cavity Squamous Cell Carcinoma: Factors Associated With Treatment Outcomes and Potential Organ Preservation.” Am J Rhinol Allergy 37, no. 1 (January 2023): 35–42. https://doi.org/10.1177/19458924221130133.
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    • Finlay, John B., David H. Brann, Ralph Abi Hachem, David W. Jang, Allison D. Oliva, Tiffany Ko, Rupali Gupta, et al. “Persistent post-COVID-19 smell loss is associated with immune cell infiltration and altered gene expression in olfactory epithelium.” Sci Transl Med 14, no. 676 (December 21, 2022): eadd0484. https://doi.org/10.1126/scitranslmed.add0484.
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    • Saleh, Sara, Stephen E. Sullivan, Emily Bellile, Christopher Roxbury, Paramita Das, Ralph Abi Hachem, Feras Ackall, et al. “Retrospective Review of Surgical Site Infections after Endoscopic Endonasal Sellar and Parasellar Surgery: Multicenter Quality Data from the North American Skull Base Society.” J Neurol Surg B Skull Base 83, no. 6 (December 2022): 579–88. https://doi.org/10.1055/a-1865-3202.
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    • Wang, Zhaohui, Matteo Boretto, Rosemary Millen, Naveen Natesh, Elena S. Reckzeh, Carolyn Hsu, Marcos Negrete, et al. “Rapid tissue prototyping with micro-organospheres.” Stem Cell Reports 17, no. 9 (September 13, 2022): 1959–75. https://doi.org/10.1016/j.stemcr.2022.07.016.
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    • Huang, Ryan J., Jordan I. Teitelbaum, Khalil Issa, Tracy Truong, Heewon Kim, Maragatha Kuchibhatla, Ralph Abi Hachem, Bradley J. Goldstein, and David W. Jang. “Endoscopic Sinus Surgery in Older Patients With Significant Medical Comorbidities.” Am J Rhinol Allergy 36, no. 5 (September 2022): 661–67. https://doi.org/10.1177/19458924221101438.
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    • Ji, Keven S. Y., Dennis Frank-Ito, Ralph Abi Hachem, Khalil Issa, Carrie Johnson, Omar Mohamedaly, Bradley J. Goldstein, and David W. Jang. “Endoscopic Sinus Surgery for Cystic Fibrosis: Variables Influencing Sinonasal and Pulmonary Outcomes.” Am J Rhinol Allergy 36, no. 3 (May 2022): 307–12. https://doi.org/10.1177/19458924211059606.
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    • Finlay, John B., David H. Brann, Ralph Abi-Hachem, David W. Jang, Allison D. Oliva, Tiffany Ko, Rupali Gupta, et al. “Persistent post-COVID-19 smell loss is associated with inflammatory infiltration and altered olfactory epithelial gene expression.” Biorxiv, April 18, 2022. https://doi.org/10.1101/2022.04.17.488474.
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    • Oliva, Allison D., Rupali Gupta, Khalil Issa, Ralph Abi Hachem, David W. Jang, Sebastian A. Wellford, E Ashley Moseman, Hiroaki Matsunami, and Bradley J. Goldstein. “Aging-related olfactory loss is associated with olfactory stem cell transcriptional alterations in humans.” J Clin Invest 132, no. 4 (February 15, 2022). https://doi.org/10.1172/JCI155506.
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    • Jang, David W., Frederick A. Godley, and Ralph Abi Hachem. “Sinus headache: changing the treatment paradigm.” Curr Opin Otolaryngol Head Neck Surg 30, no. 1 (February 1, 2022): 63–67. https://doi.org/10.1097/MOO.0000000000000779.
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    • Lazutkin, A., R. A. Hachem, P. J. Codd, A. R. Zomorodi, and D. W. Jang. “Use of Tympanostomy T-Tube for Endoscopic Endonasal Marsupialization of Small Rathke's Cleft Cysts: A Case Series.” Journal of Neurological Surgery, Part B: Skull Base, January 1, 2022. https://doi.org/10.1055/s-0042-1755572.
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    • Issa, Khalil, Blaine D. Smith, Samantha J. Kaplan, John Madden, David W. Jang, Ali Zomorodi, David Brizel, and Ralph Abi Hachem. “A systematic review on sinonasal mixed adenoneuroendocrine carcinoma.” Int Forum Allergy Rhinol 11, no. 9 (September 2021): 1391–94. https://doi.org/10.1002/alr.22811.
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    • Issa, Khalil, Jordan I. Teitelbaum, David W. Jang, Bradley J. Goldstein, Lyndon Chan, and Ralph Abi Hachem. “Sinus Irrigation Penetration After Proposed Modified Draf IIa Technique in a Side-to-Side Cadaveric Model.” American Journal of Rhinology & Allergy 35, no. 4 (July 2021): 487–93. https://doi.org/10.1177/1945892420969141.
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    • Jang, David W., Hui-Jie Lee, Ryan J. Huang, Jeffrey Cheng, Ralph Abi Hachem, and Chuck D. Scales. “Healthcare Resource Utilization for Chronic Rhinosinusitis in Older Adults.” Healthcare (Basel) 9, no. 7 (June 25, 2021). https://doi.org/10.3390/healthcare9070796.
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    • Ackall, Feras Y., Khalil Issa, Ian Barak, Jordan Teitelbaum, David W. Jang, Sin-H Jung, Bradley Goldstein, Ricardo Carrau, and Ralph Abi Hachem. “Survival Outcomes in Sinonasal Poorly Differentiated Squamous Cell Carcinoma.” Laryngoscope 131, no. 4 (April 2021): E1040–48. https://doi.org/10.1002/lary.29090.
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    • Teitelbaum, Jordan I., Catie Grasse, Dennis Quan, Ralph Abi Hachem, Bradley J. Goldstein, Xiaoyang Hua, and David W. Jang. “General Complications after Endoscopic Sinus Surgery in Smokers: A 2005-2016 NSQIP Analysis.” Ann Otol Rhinol Laryngol 130, no. 4 (April 2021): 350–55. https://doi.org/10.1177/0003489420952481.
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    • Issa, Khalil, Feras Ackall, Sin-Ho Jung, Jianghao Li, David W. Jang, Sanjeet V. Rangarajan, and Ralph Abi Hachem. “Survival outcomes in sinonasal carcinoma with neuroendocrine differentiation: A NCDB analysis.” Am J Otolaryngol 42, no. 2 (2021): 102851. https://doi.org/10.1016/j.amjoto.2020.102851.
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    • Issa, Khalil, Ralph Abi Hachem, Alexander Gordee, Tracy Truong, Richard Pfohl, Barry Doublestein, and Walter Lee. “Analysis of Self- and 360-Evaluation Scores of the Professionalism Intelligence Model Within an Academic Otolaryngology-Head and Neck Surgery Department.” J Healthc Leadersh 13 (2021): 129–36. https://doi.org/10.2147/JHL.S296501.
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    • Raikundalia, Milap D., Ryan J. Huang, Lyndon Chan, Tracy Truong, Maragatha Kuchibhatla, James Merchant, Ralph Abi Hachem, et al. “Olfactory-Specific Quality of Life Outcomes after Endoscopic Endonasal Surgery of the Sella.” Allergy Rhinol (Providence) 12 (2021): 21526567211045040. https://doi.org/10.1177/21526567211045041.
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    • Teitelbaum, Jordan I., Khalil Issa, Ian R. Barak, Feras Y. Ackall, Sin-Ho Jung, David W. Jang, and Ralph Abi Hachem. “Sinonasal Squamous Cell Carcinoma Outcomes: Does Treatment at a High-Volume Center Confer Survival Benefit?” Otolaryngol Head Neck Surg 163, no. 5 (November 2020): 986–91. https://doi.org/10.1177/0194599820935395.
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    • Jang, David W., Derek D. Cyr, Kristine Schulz, Richard Scher, Phil Ryan, Ralph Abi Hachem, and David L. Witsell. “The use of balloon dilation in revision sinus surgery.” Int Forum Allergy Rhinol 10, no. 10 (October 2020): 1158–64. https://doi.org/10.1002/alr.22571.
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    • Brann, David H., Tatsuya Tsukahara, Caleb Weinreb, Marcela Lipovsek, Koen Van den Berge, Boying Gong, Rebecca Chance, et al. “Non-neuronal expression of SARS-CoV-2 entry genes in the olfactory system suggests mechanisms underlying COVID-19-associated anosmia.” Sci Adv 6, no. 31 (July 31, 2020). https://doi.org/10.1126/sciadv.abc5801.
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    • VanDusen, Keith W., Sarada Eleswarpu, Eugene W. Moretti, Michael J. Devinney, Donna M. Crabtree, Daniel T. Laskowitz, Marty G. Woldorff, et al. “The MARBLE Study Protocol: Modulating ApoE Signaling to Reduce Brain Inflammation, DeLirium, and PostopErative Cognitive Dysfunction.” J Alzheimers Dis 75, no. 4 (2020): 1319–28. https://doi.org/10.3233/JAD-191185.
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    • Choi, Kevin J., David W. Jang, Ali R. Zomorodi, Patrick J. Codd, Allan Friedman, and Ralph Abi Hachem. “Novel Application of Steroid Eluting Stent in Petrous Apex Cholesterol Granuloma.” J Neurol Surg B Skull Base 80, no. 5 (October 2019): 500–504. https://doi.org/10.1055/s-0038-1675751.
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    • Ji, Keven, Thomas J. Risoli, Maragatha Kuchibhatla, Lyndon Chan, Ralph Abi Hachem, and David W. Jang. “Symptom Profile of Chronic Rhinosinusitis Versus Obstructive Sleep Apnea in a Tertiary Rhinology Clinic.” Ann Otol Rhinol Laryngol 128, no. 10 (October 2019): 963–69. https://doi.org/10.1177/0003489419851527.
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    • Raikundalia, Milap D., Tracy Z. Cheng, Tracy Truong, Maragatha Kuchibhatla, Jiyoung Ryu, Ralph Abi Hachem, and David W. Jang. “Factors associated with opioid use after endoscopic sinus surgery.” Laryngoscope 129, no. 8 (August 2019): 1751–55. https://doi.org/10.1002/lary.27921.
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    • Choi, Kevin J., Feras Y. Ackall, Tracy Truong, Tracy Z. Cheng, Maragatha Kuchibhatla, Ali R. Zomorodi, Patrick J. Codd, Peter E. Fecci, Ralph Abi Hachem, and David W. Jang. “Sinonasal Quality of Life Outcomes After Extended Endonasal Approaches to the Skull Base.” J Neurol Surg B Skull Base 80, no. 4 (August 2019): 416–23. https://doi.org/10.1055/s-0038-1675592.
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    • Cheng, Tracy Z., Kevin J. Choi, Adam L. Honeybrook, Rasheedat T. Zakare-Fagbamila, Alice L. Gray, Laurie D. Snyder, Scott M. Palmer, Ralph Abi-Hachem, and David W. Jang. “Decreased Antibiotic Utilization After Sinus Surgery in Cystic Fibrosis Patients With Lung Transplantation.” Am J Rhinol Allergy 33, no. 4 (July 2019): 354–58. https://doi.org/10.1177/1945892419830624.
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    • Jang, David W., Cecily Abraham, Derek D. Cyr, Kristine Schulz, Ralph Abi Hachem, and David L. Witsell. “Preoperative Management of Chronic Rhinosinusitis Prior to Office Balloon Sinus Dilation: A 2011-2014 MarketScan® Analysis.” Am J Rhinol Allergy 33, no. 4 (July 2019): 347–53. https://doi.org/10.1177/1945892419829335.
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    • Cooper, Matthew, Tracy Cheng, Tracy Truong, Maragatha Kuchibhatla, Ralph Abi Hachem, and David W. Jang. “Factors Associated with Revision Surgery after Balloon Sinuplasty.” Otolaryngol Head Neck Surg 160, no. 4 (April 2019): 734–39. https://doi.org/10.1177/0194599818813044.
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    • Khoury, Tawfiq, David Jang, Ricardo Carrau, Neal Ready, Ian Barak, and Ralph Abi Hachem. “Role of induction chemotherapy in sinonasal malignancies: a systematic review.” Int Forum Allergy Rhinol 9, no. 2 (February 2019): 212–19. https://doi.org/10.1002/alr.22229.
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    • Brown, C Scott, Ralph Abi Hachem, Avani Pendse, John F. Madden, and Howard W. Francis. “Low-Grade Papillary Schneiderian Carcinoma of the Sinonasal Cavity and Temporal Bone.” Ann Otol Rhinol Laryngol 127, no. 12 (December 2018): 974–77. https://doi.org/10.1177/0003489418803391.
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    • Jang, David W., Cecily Abraham, Derek D. Cyr, Kristine Schulz, Ralph Abi Hachem, and David L. Witsell. “Balloon Catheter Dilation of the Sinuses: A 2011-2014 MarketScan Analysis.” Otolaryngol Head Neck Surg 159, no. 6 (December 2018): 1061–67. https://doi.org/10.1177/0194599818791811.
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    • Brown, Clifford Scott, Ralph Abi-Hachem, and David Woojin Jang. “Management of epistaxis in patients with ventricular assist device: a retrospective review.” J Otolaryngol Head Neck Surg 47, no. 1 (August 2, 2018): 48. https://doi.org/10.1186/s40463-018-0295-6.
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    • Abi Hachem, Ralph, Stefania Goncalves, Thomas Walker, and Simon Angeli. “Middle ear irrigation using a hydrodebrider decreases biofilm surface area in an animal model of otitis media.” Laryngoscope Investig Otolaryngol 3, no. 3 (June 2018): 231–37. https://doi.org/10.1002/lio2.164.
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    • Kang, Stephen Y., Antoine Eskander, Ralph Abi Hachem, Enver Ozer, Theodoros N. Teknos, Matthew O. Old, Daniel M. Prevedello, and Ricardo L. Carrau. “Salvage skull base reconstruction in the endoscopic era: Vastus lateralis free tissue transfer.” Head Neck 40, no. 4 (April 2018): E45–52. https://doi.org/10.1002/hed.25094.
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    • Choi, Kevin J., Tracy Z. Cheng, Adam L. Honeybrook, Alice L. Gray, Laurie D. Snyder, Scott M. Palmer, Ralph Abi Hachem, and David W. Jang. “Correlation between sinus and lung cultures in lung transplant patients with cystic fibrosis.” Int Forum Allergy Rhinol 8, no. 3 (March 2018): 389–93. https://doi.org/10.1002/alr.22067.
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    • Choi, Kevin J., David W. Jang, and Ralph Abi Hachem. “Endoscopic Endonasal Approaches to the Orbit.” Int Ophthalmol Clin 58, no. 2 (2018): 85–99. https://doi.org/10.1097/IIO.0000000000000222.
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    • Johnson, Sean M., Adam L. Honeybrook, Vaibhav H. Ramprasad, Ralph Abi Hachem, and David W. Jang. “Radiodensity of the Ostiomeatal Complex in Recurrent Acute Rhinosinusitis.” Otolaryngol Head Neck Surg 157, no. 5 (November 2017): 887–90. https://doi.org/10.1177/0194599817717682.
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    • Elkhatib, Ahmad, Kyle McMullen, Ralph Abi Hachem, Ricardo L. Carrau, and Nicholas Mastros. “Rapidly Progressive Maxillary Atelectasis.” J Craniofac Surg 28, no. 5 (July 2017): e451–53. https://doi.org/10.1097/SCS.0000000000002890.
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    • Rangarajan, Sanjeet, Ralph Abi Hachem, Enver Ozer, Andre Beer-Furlan, Daniel Prevedello, and Ricardo L. Carrau. “Robotics in Sinus and Skull Base Surgery.” Otolaryngol Clin North Am 50, no. 3 (June 2017): 633–41. https://doi.org/10.1016/j.otc.2017.01.013.
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    • Hachem, Ralph Abi, Sanjeet Rangarajan, Andre Beer-Furlan, Daniel Prevedello, Enver Ozer, and Ricardo L. Carrau. “The Role of Robotic Surgery in Sinonasal and Ventral Skull Base Malignancy.” Otolaryngol Clin North Am 50, no. 2 (April 2017): 385–95. https://doi.org/10.1016/j.otc.2016.12.012.
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    • Elkhatib, Ahmad H., Liuba Soldatova, Ricardo L. Carrau, Ralph Abi Hachem, Leo Ditzel, Raewyn Campbell, Daniel M. Prevedello, Luciano Prevedello, Leo FS Ditzel Filho, and Raewyn G. Campbell. “Role of 18 F-FDG PET/CT differentiating olfactory neuroblastoma from sinonasal undifferentiated carcinoma.” Laryngoscope 127, no. 2 (February 2017): 321–24. https://doi.org/10.1002/lary.26194.
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    • Beer-Furlan, Andre, Ralph Abi-Hachem, Ali O. Jamshidi, Ricardo L. Carrau, and Daniel M. Prevedello. “ndoscopic trans-sphenoidal surgery for petroclival and clival meningiomas.” Journal of Neurosurgical Sciences 60, no. 4 (December 1, 2016): 495–502.
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    • Beer-Furlan, André, Ralph Abi-Hachem, Ali O. Jamshidi, Ricardo L. Carrau, and Daniel M. Prevedello. “Endoscopic trans-sphenoidal surgery for petroclival and clival meningiomas.” J Neurosurg Sci 60, no. 4 (December 2016): 495–502.
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    • Beer-Furlan, André, Ralph Abi-Hachem, Behiye Goksel, José J. Otero, Ricardo L. Carrau, and Daniel M. Prevedello. “Letter: Radiation-Induced Malignant Transformation of Craniopharyngiomas.” Neurosurgery 79, no. 2 (August 2016): E313–15. https://doi.org/10.1227/NEU.0000000000001292.
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    • Hachem, Ralph Abi, Ahmad Elkhatib, Andre Beer-Furlan, Daniel Prevedello, and Ricardo Carrau. “Reconstructive techniques in skull base surgery after resection of malignant lesions: a wide array of choices.” Curr Opin Otolaryngol Head Neck Surg 24, no. 2 (April 2016): 91–97. https://doi.org/10.1097/MOO.0000000000000233.
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    • Perez, Enrique, Ralph Abi Hachem, Daniel Carlton, Isabel Bueno, Stephen Vernon, Thomas R. Van De Water, and Simon I. Angeli. “Comparison of packing material in an animal model of middle ear trauma.” Am J Otolaryngol 37, no. 4 (2016): 323–29. https://doi.org/10.1016/j.amjoto.2016.02.009.
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    • Bollig, Craig, Laura C. Huang, Ralph Abi-Hachem, Oleksandr N. Kryvenko, and Jason M. Leibowitz. “Base of Tongue Mass. Mucoepidermoid carcinoma.” Jama Otolaryngol Head Neck Surg 141, no. 10 (October 2015): 935–36. https://doi.org/10.1001/jamaoto.2015.1727.
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    • Ghorra, Claude, Habib Rizk, Ralph Abi Hachem, Jenny Tannoury, and Bassam Abboud. “Association of parathyroid pathology with well-differentiated thyroid carcinoma.” Presse Med 41, no. 6 Pt 1 (June 2012): e265–71. https://doi.org/10.1016/j.lpm.2011.12.016.
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    • Angeli, Simon I., Ralph N. Abi-Hachem, Richard J. Vivero, Fred T. Telischi, and John J. Machado. “L-N-Acetylcysteine treatment is associated with improved hearing outcome in sudden idiopathic sensorineural hearing loss.” Acta Otolaryngol 132, no. 4 (April 2012): 369–76. https://doi.org/10.3109/00016489.2011.647359.
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    • Eshraghi, A. A., C. T. Dinh, J. Bohorquez, S. Angeli, R. Abi-Hachem, and T. R. Van De Water. “Local drug delivery to conserve hearing: mechanisms of action of eluted dexamethasone within the cochlea.” Cochlear Implants Int 12 Suppl 1 (May 2011): S51–53. https://doi.org/10.1179/146701011X13001035753254.
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    • Lipan, Michael Julian, Ibrahim Alava, Ralph Abi-Hachem, Stephen Vernon, Thomas R. Van De Water, and Simon I. Angeli. “Middle ear packing: comparison of materials in an animal model of mucosal trauma.” Otolaryngol Head Neck Surg 144, no. 5 (May 2011): 763–69. https://doi.org/10.1177/0194599810395115.
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    • Abi-Hachem, Ralph N., Azel Zine, and Thomas R. Van De Water. “The injured cochlea as a target for inflammatory processes, initiation of cell death pathways and application of related otoprotectives strategies.” Recent Pat Cns Drug Discov 5, no. 2 (June 2010): 147–63. https://doi.org/10.2174/157488910791213121.
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    • Van De Water, Thomas R., Ralph N. Abi Hachem, Christine T. Dinh, Esperanza Bas, Scott M. Haake, Gia Hoosien, Richard Vivero, et al. “Conservation of hearing and protection of auditory hair cells against trauma-induced losses by local dexamethasone therapy: molecular and genetic mechanisms.” Cochlear Implants Int 11 Suppl 1 (June 2010): 42–55. https://doi.org/10.1179/146701010X12671178390834.
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    • Hachem, Ralph N Abi, Anthony Bared, Joseph Zeitouni, and Ramzi T. Younis. “Single-stage total endoscopic resection of a plexiform neurofibroma of the maxillary sinus in a child with type 1 neurofibromatosis.” Int J Pediatr Otorhinolaryngol 74, no. 4 (April 2010): 426–29. https://doi.org/10.1016/j.ijporl.2009.12.012.
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  • Book Sections

    • Hachem, R. A., A. Beer-Furlan, A. Jamshidi, A. ElKhatib, R. L. Carrau, and D. M. Prevedello. “Skull base reconstruction following resection of skull base chordomas and chondrosarcomas.” In Chordomas and Chondrosarcomas of the Skull Base and Spine, 259–70, 2018. https://doi.org/10.1016/B978-0-12-804257-1.00022-0.
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    • Beer-Furlan, A., R. Abi-Hachem, A. O. Jamshidi, R. L. Carrau, and D. M. Prevedello. “Anatomical approaches to giant pituitary tumors.” In Transsphenoidal Surgery: Complication Avoidance and Management Techniques, 517–29, 2017. https://doi.org/10.1007/978-3-319-56691-7_30.
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    • Jamshidi, A. O., D. M. Prevedello, A. Beer-Furlan, R. A. Hachem, B. Otto, and R. Carrau. “Surgical Management of Pituitary Apoplexy.” In Primer on Cerebrovascular Diseases: Second Edition, 830–35, 2017. https://doi.org/10.1016/B978-0-12-803058-5.00158-2.
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    • Hachem, R. A., A. Rose, and R. T. Younis. “Congenital nasal and paranasal masses.” In Pediatric and Adult SinoNasal Disorders, 255–69, 2015.
    • Hachem, R. A., S. Goncalves, A. Rivera, and R. Younis. “Choanal atresia: Anatomy, etiology, pathophysiology and management.” In Pediatric and Adult SinoNasal Disorders, 241–54, 2015.
    • Younis, R., M. Abouyared, B. Herman, and R. A. Hachem. “Juvenile nasopharyngeal angiofibroma: Anatomy, pathophysiology and management.” In Pediatric and Adult SinoNasal Disorders, 271–84, 2015.

  • Reports

    • Hachem, R. A. “Modern Treatment Outcomes in Sinonasal Malignancies.” Modern Treatment Outcomes in Sinonasal Malignancies. springer, n.d. https://doi.org/10.1007/s40136-016-0133-1.
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  • Conference Papers

    • Van De Water, Thomas R., Ralph Abi Hachem, Jorge Bohorquez, Adrien A. Eshraghi, Simon Angeli, and Thomas J. Balkany. “Polymer-eluted Dexamethasone Protects Hearing and Hair Cells Against Trauma-induced Loss.” In Faseb Journal, Vol. 24. FEDERATION AMER SOC EXP BIOL, 2010.
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