Ken Kazahaya, MD, MBA, FACS

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Ken Kazahaya, MD, MBA, FACS, is Associate Director of the Division of Otolaryngology (ENT) at Children's Hospital of Philadelphia.

Areas of Expertise: General pediatric otolaryngology, Thyroid tumors, Cochlear implantation, Pediatric ear disorders, Skull base tumors
Locations: Main Campus; Specialty Care & Surgery Center, Voorhees; Specialty Care & Surgery Center, Brandywine Valley

Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467)

Background

Ken Kazahaya, MD, MBA, FACS, is associate director of the Division of Pediatric Otolaryngology, director of Pediatric Skull Base Surgery, medical director of the Pediatric Cochlear Implant Program, and co-lead surgeon in the Pediatric Thyroid Center at The Children’s Hospital of Philadelphia. He also has an appointment as Associate Professor of Clinical Otorhinolaryngology: Head and Neck Surgery at the Perelman School of Medicine at the University of Pennsylvania.

Dr. Kazahaya specializes in otology, cochlear implantation, skull base surgery, thyroid surgery, pediatric head and neck oncology, and facial plastic and reconstructive surgery. He has been named by U.S. News & World Report as a Top Pediatric ENT-Otolaryngologist and, within this list, as an American Top Doctor in 2011. He also been named as a Top Doctor by Philadelphia magazine from 2007–2014 and by Castle Connolly from 2009–2014, and has received multiple citations by Philadelphia region periodicals as a top physician. He has numerous publications in peer reviewed journals and has been an invited lecturer nationally and internationally, including in Ireland, Hungary, United Kingdom, Japan, Canada and Mexico.

Dr. Kazahaya is a member of the American Academy of Otolaryngology–Head and Neck Surgery (AAO-HNS), North American Skull Base Society, American Society of Pediatric Otolaryngology (ASPO), American Thyroid Association, and a Fellow of the American College of Surgeons. He has been appointed to committees in both AAO-HNS and ASPO.

Education and Training

Medical School

MD - University of Pennsylvania School of Medicine, Philadelphia, PA

Internship

General Surgery - University of Pennsylvania School of Medicine, Philadelphia, PA

Residency

Otorhinolaryngology-Head and Neck Surgery - University of Pennsylvania School of Medicine, Philadelphia, PA

Fellowship

Pediatric Otolaryngology - The Children's Hospital of Philadelphia, Philadelphia, PA
Mini-Fellowship, Facial Plastics and Reconstructive Surgery - Oregon Health Sciences University, Portland, OR

Board Certification

Otolaryngology

Graduate Degree

MBA - University of Pennsylvania Wharton School of Business, Philadelphia, PA

Titles and Academic Titles

Director, Pediatric Skull Base Surgery

Medical Director, Pediatric Cochlear Implant Program

Associate Director, Division of Pediatric Otolaryngology

Co-Lead Surgeon, Pediatric Thyroid Center

Endowed Chair, Pediatric Otolaryngology

Associate Professor of Clinical Otorhinolaryngology, Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services

Publications

Papers

2019

Shenoy A, Jain P, Straka J, Resnick AC, Luo M, Kazahaya K, Li MM, Surrey LF, Foster JB, Bagatell R, Li MM, Wojcik J, Awaander S: Sclerosing epithelioid fibrosarcoma of the bone with rare EWSR1-CREB3L3 translocation driving upregulation of the PI3K/mTOR signaling pathway. Pediatric and Developmental Pathology 22(6): 594-598, Nov-Dec 2019.

Tsai SD, Mostoufi-Moab S, Bauer S, Kazahaya K, Hawkes CP, Adzick NS, Bauer AJ: Clinical utility of intraoperative parathyroid hormone measurement in children and adolescents undergoing total thyroidectomy. Frontiers Endocrinology 10(760): 1-7, Nov 6 2019. Notes: Accepted for publication, 10/21/19. doi: 10.3389/fendo.2019.00760.

Jain NK, Mostoufi-Moab S, Hawkes CP, Nelson ND, Surrey LF, Jones ZS, Adzick NS, Kazahaya K, Bauer AJ: Extrathyroidal extension is an important predictor of regional lymph node metastasis in pediatric differentiated thyroid cancer. Thyroid Oct 2019. Notes: doi: 10.1089/thy.2019.0229. [Epub ahead of print].

Dimachkieh AL, Kazahaya K, Chelius DC Jr: Assessment and management of thyroid disease in children. Otolaryngology Clinics North America 52(5): 957-67, Oct 2019.

Baumgarten HD, Bauer AJ, Isaza A, Mostoufi-Moab S, Kazahaya K, Adzick NS. Surgical management of pediatric thyroid disease: Complication rates after thyroidectomy at the Children's Hospital of Philadelphia high-volume Pediatric Thyroid Center. J Pediatr Surg. 2019 Feb 28. pii: S0022-3468(19)30122-8. doi: 10.1016/j.jpedsurg.2019.02.009. [Epub ahead of print]

2018

Samuels SL, Surrey LF, Hawkes CP, Amberge M, Mostoufi-Moab S, Langer JE, Adzick NS, Kazahaya K, Bhatti T, Baloch Z, LiVolsi BA, Bauer AJ: Characteristics of follicular variant papillary thyroid carcinoma in a pediatric cohort. Journal of Clinical Endocrinology and Metabolism 103:1639-1648, 2018.

Mostoufi-Moab S. Sullivan L, LiVolsi V, Li Y, Beaudenon-Huibregtse S, Kazahaya K, Adzick NS, Baloch Z, Labourier E, Bauer AJ: Molecular testing for oncogenic gene alterations in pediatric thyroid lesions. Thyroid 28:60-67, 2018.

MacFarland S, Bauer AJ, Adzick NS, Surrey LF, Noyes J, Kazahaya K, Baloch Z, Mostoufi-Moab S: Disease burden and outcome in pediatric and young adults with concurrent Graves Disease and differentiated thyroid carcinoma. Journal of Clinical Endocrinology and Metabolism 103:2918-2925, 2018.

Kazahaya K: Disease burden & outcome in pediatric/young adults with concurrent Graves Disease and differentiated thyroid carcinoma. The Journal of Clinical Endocrinology & Metabolism. J Clin Endocrinol Metab. 2018 May 18. doi: 10.1210/jc.2018-00026. [Epub ahead of print]

Kazahaya K: Lateral Skull Base Approaches in Pediatric Skull Base Surgery. J Neurol Surg B Skull Base. 2018 Feb;79(1):47-57. doi: 10.1055/s-0038-1624572. Epub 2018 Jan 24.

2019

Shenoy A, Jain P, Straka J, Resnick AC, Luo M, Kazahaya K, Li MM, Surrey LF, Foster JB, Bagatell R, Li MM, Wojcik J, Awaander S: Sclerosing epithelioid fibrosarcoma of the bone with rare EWSR1-CREB3L3 translocation driving upregulation of the PI3K/mTOR signaling pathway. Pediatr Dev Pathol. 2019 Jul 23:1093526619864230. doi: 10.1177/1093526619864230. [Epub ahead of print]

Rastatter JC, Kazahaya K, Randolph GW: Pediatric thyroid cancer—Are my kids at increased risk? JAMA Otolaryngology–Head & Neck Surgery Page: E1-2, May 23 2019 Notes: Invited commentary. Online publication.

2015

Kovatch KJ, Bauer AJ, Isaacoff EJ, Prickett KK, Adzick NS, Kazahaya K, Sullivan LM, Mostoufi-Moab S: Pediatric thyroid carcinoma in patients with Graves' disease: The role of ultrasound in selecting patients for definitive therapy. Hormone Research in Pediatrics 2015 Notes: Accepted for publication, February 2015.

2014

Kazahaya K, Rizzi M: Pediatric chronic rhinosinusitis: When should we operate? Current Opinion in Otolaryngology and Head & Neck Surgery 22(1): 27-33, February 2014.

2013

Ballah D, Vossough A, Dunham BP, Kazahaya K, Cahill AM: Preoperative angiography and external carotid artery embolisation of juvenile nasopharyngeal angiofibromas in a tertiary referral paediatric centre. Clinical Radiology 68(11): 1097-1106, November 2013.

Cheng J, Kazahaya K: Endolaryngeal hookwire electrodes for intraoperative recurrent laryngeal nerve monitoring during pediatric thyroid surgery. Otolaryngology-Head and Neck Surgery 148(4): 572-575, April 2013.

2012

Clemmens C, Kazahaya K: Pediatric amyloidosis of the nasopharynx: A case report and review of the literature. Ear, Nose and Throat Journal 2012 Notes: Accepted for publication, April 27, 2012, Ms. No. 12-32R1.

Books

2006

Germiller JA, Kazahaya K: Labyrinthitis. Gellis and Kagan's Current Pediatric Therapy, 18th Edition. Ingelfinger J, Polin R, Burg F, and Gershon A. (eds.). W.B. Saunders, Co., Philadelphia, PA. 2006.

2005

Baum ED, Kazahaya K: Otolaryngology. The Philadelphia Guide: Inpatient Pediatrics. Frank G, Shah S, Catallozzi M, Zaoutis LB (eds.). Blackwell, 2005.

2002

Potsic WP, Kazahaya K: Tonsillectomy and Adenoidectomy. Gellis and Kagan's Current Pediatric Therapy, 17th Edition. Burg F, Ingelfinger J, Polin R, Gershon A (eds.). W.B. Saunders. Co., Philadelphia, PA. 2002.

2001

Kazahaya K: Imaging of the Paranasal Sinusitis in Pediatric Patients with Special Considerations for Endoscopic Sinus Surgery. Pediatric Otolaryngology, 4th Edition. Bluestone C and Stool S (eds.). W.B. Saunders Co., Philadelphia, PA, 2001.

Chapters

2016

Kazahaya K: Nasal Deformity. Surgical Pediatric Otolaryngology, 2nd ed. Potsic WP, Cotton RT, Handler SD, Zur KB (eds.). Thieme Medical Publishers; New York, NY, Page: 167-192, 2016.

Kazahaya K: Nasal Tumors. Surgical Pediatric Otolaryngology, 2nd ed. Potsic WP, Cotton RT, Handler SD, Zur KB (eds.). Thieme Medical Publishers; New York, NY, Page: 167-192, 2016.

Kazahaya K: Nasopharyngeal Angiofibroma. Surgical Pediatric Otolaryngology, 2nd ed. Potsic WP, Cotton RT, Handler SD, Zur KB (eds.). Thieme Medical Publishers; New York, NY, Page: 167-192, 2016.

2014

Mudd PA, Kazahaya K: Otologic Tumors. Pediatric Otolaryngology Head and Neck Surgery, Clinical Reference Guide. Parikh SR (eds.). Plural Publishing, San Diego CA, Page: 187-200, Jan 30 2014.

2012

Kazahaya K: Regional and Intracranial Complications of Rhinosinusitis. Pediatric Otolaryngology: Principles and Practice Pathways, 2nd ed. Wetmore RF, Muntz HR, McGill TJ (eds.). Thieme Medical Publishers, New York, NY, Page: 439-452, 2012.

2008

Marsh RR, Kazahaya K: Is Auditory Neuropathy an Appropriate Diagnosis if There is No Neuropathy? Neuropathies of the Auditory and Vestibular Eighth Cranial Nerves. Kaga K, Starr A. (eds.). Tokyo, Springer Japan, Page: 149-156, 2008.

2007

Kazahaya K, Singh D: Congenital Malformations of the Head and Neck. Pediatric Otolaryngology: The Requisites in Pediatrics. Wetmore RF (eds.). Mosby Elsevier, Philadelphia, PA, Page: 1-22, 2007.

Kazahaya K: Pediatric Facial Trauma. Pediatric Otolaryngology: The Requisites in Pediatrics. Wetmore RF (eds.). Mosby Elsevier, Philadelphia, PA, Page: 215-227, 2007.

2006

Kazahaya K, Handler SD: Otolaryngology Trauma. Textbook of Pediatric Emergency Medicine, 5th Edition. Fleisher GR, Ludwig S, Henretig FM (eds.). Lippincott Williams and Wilkins, Philadelphia, PA. Page: 1497-1505, 2006.

Posters and Presentations

2019

Baumgarten H, Bauer A, Adzick NS, Mostoufi-Moab S, Kazahaya K, Bhatti T, Mulvey C, Isaza A: "Bilateral Papillary Thyroid Cancer in Children: Risk Factors and Frequency of Post-operative Diagnosis" Oral presentation at the AAP National Conference, New Orleans, LA. October 2019. Notes: Accepted via abstract; H Baumgarten presented 10/26/19.

Kazahaya K. "Hearing Loss in Infants and Children" Oral presentation at the 46th Congress of the International Neurotological & Equilibriometric Society, Tokyo, Japan. (5/30/19)

Kazahaya K. "Endoscopes in Otologic Surgery in Children" Oral presentation at the 69th Congreso Nacional de la Sociedad Mexicana de Otorrinolaringologia y Cirugia de Cebeza y Cuello (SMORLCCC), Mazatlan, Mexico (5/2/19)

Kazahaya K. "Congenital Neck Anomalies" Oral presentation at the 69th Congreso Nacional de la Sociedad Mexicana de Otorrinolaringologia y Cirugia de Cebeza y Cuello (SMORLCCC), Mazatlan, Mexico (5/2/19)

Kazahaya K. "Congenital Cholesteatoma" Oral presentation at the 69th Congreso Nacional de la Sociedad Mexicana de Otorrinolaringologia y Cirugia de Cebeza y Cuello (SMORLCCC), Mazatlan, Mexico (5/2/19)

Kazahaya K. "Tonsillectomy vs. Tonsillotomy" Oral presentation at the 69th Congreso Nacional de la Sociedad Mexicana de Otorrinolaringologia y Cirugia de Cebeza y Cuello (SMORLCCC), Mazatlan, Mexico (5/2/19)

Kazahaya K. "Thyroid Cancer" Oral presentation at the 1st World Congress of Pediatric ENT, Buenos Aires, Argentina (4/7/19)  

2018

Kazahaya K. "Management of Complications of Acute Pediatric Rhinosinusitis " Oral presentation at the XXXVI Panamerican Congress of Otorhinolaryngology and Head and Neck Surgery, Lima, Peru (11/16/18)

Kazahaya K. "Congenital Nasal Anomalies" Oral presentation at the XXXVI Panamerican Congress of Otorhinolaryngology and Head and Neck Surgery, Lima, Peru (11/14/18)

Kazahaya K. "Endoscopes in Otologic Surgery" Oral presentation at the DC Metro OTO Society Meeting, Bethesda, MD (10/4/18)

2017

Kazahaya K. Considerations in the Evaluation and Surgical Management of Thyroid Cancer in Children. Oral presentation in Symposium at the 2nd Congress of Asia-Pacific Society of Thyroid Surgery (APTS2017); 2017, November 1-3. 

Invited Lectures

2020

Kazahaya K. "What's New in Pediatric Otology" Oral presentation to the Southern Pediatric Otolaryngology Study Group, Palm Beach, FL (01/18/20).

2019

Kazahaya K. "Pediatric Thyroid Surgery" American Head and Neck Surgery (Endocrine Surgery) Symposium, 20th ASEAN Federation of Endocrine Societies (AFES). Philippine International Convention Center, Manila, Philippines (11/21/19).

Kazahaya K. "Otolaryngology" Introductory presentation at the 6th Annual CHOP Pediatric Orthopaedic FDA Course (9/13/19)

Kazahaya K. Session IV Moderator: "CSOM and Sequelae". International Society for Otitis Media Meeting, Los Angeles, CA (6/9/19)

Kazahaya K. Session Chairman, 46th Congress of the International Neurotological & Equilibriometric Society, Tokyo, Japan (5/31/19)

Kazahaya K. Discussant, Case Conference: Dept. of Otorhinolaryngology, Kyushu University, Fukuoka, Japan (5/27/19) 

Kazahaya K. Panel Organizer: "Thyroid Pathology in Children":  69th Congreso Nacional de la Sociedad Mexicana de Otorrinolaringologia y Cirugia de Cebeza y Cuello (SMORLCCC), Mazatlan, Mexico (5/2/19)

Kazahaya K. "Head and Neck" Session Chair, 1st World Congress of Pediatric ENT, Buenos Aires, Argentina (4/7/19) 

2018

Kazahaya K. What is New & Exciting in My Area Co-Panelist: "Targeted Drug Therapies" Oral presentation at the 8th International PENN Update Course: Otolaryngology Underwater, Cozumel, Mexico (11/2/18)

Kazahaya K. Co-Facilitator: Comprehensive Otolaryngologic Curriculum Learning through Interactive Approach (COCLIA) Session with Residents (10/4/18). MedStar Georgetown University Hospital, Washington, DC.

Kazahaya K. Guest Presenter: "Evaluation and Management of Pediatric Thyroid Nodules" Otolaryngology Grand Rounds, MedStar Georgetown University Hospital, Washington, DC (10/4/18) 

Kazahaya K. Co-Facilitator: Comprehensive Otolaryngologic Curriculum Learning through Interactive Approach (COCLIA) Session with Residents, MedStar Georgetown University Hospital, Washington, DC (10/4/18)

Kazahaya K. Workshop Panelist: "Endoscopic Anatomy/Ventilation Pathways of the Middle Ear" 2018 Endoscopic Ear Surgery and Eustachian Tube Balloon Dilation Workshop held at the Georgia World Congress Center in conjunction with the 2018 AAO-HNSF Annual Meeting & OTO Experience, Atlanta, GA (10/6/18)

Kazahaya K. Pre-AAO ASPO Panelist: "Challenging H&N Cases" 2018 AAO-HNSF Annual Meeting & OTO Experience, Atlanta, GA (10/6/18)

Kazahaya K. Invited Faculty: 9th Annual ORL 200 Emergencies Boot Camp (Sponsored by Georgetown University, Washington DC. Course involved training PGY-1 & -2 residents from local and regional programs. 7/20/18)

Kazahaya K. Invited Faculty/Instructor: Inaugural Temporal Bone Course, University of Miami (7/28-29/18)

Kazahaya K. Guest Speaker: “Pediatric Endoscopic Ear Surgery” and “Juvenile Nasopharyngeal Angiofibroma” 24th Annual Utah Otolaryngology Update, University of Utah, Salt Lake City, UT (6/22/18).

Kazahaya K. Guest Speaker: “Evaluation and Management of Pediatric Thyroid Nodules” 24th Annual Utah Otolaryngology Update, University of Utah, Salt Lake City, UT (6/23/18)

2017

Panelist: "What Would You Do? An Interactive Case-based Discussion on the Management of Pediatric Thyroid Nodules and Cancer" Presented at the 2nd Annual Multidisciplinary Management of Pediatric Thyroid Disease Symposium, Seattle Children's Hospital (10/17/17)

Kazahaya K. Faculty member, Endoscopic Ear Surgery Workshop Co-Sponsored by the American Neurotology Society. This workshop will be held in conjunction with the 2017 AAO-HNSF Annual Meeting in Chicago, IL 9/8/17.

Faculty member, Endoscopic Ear Surgery Workshop Co-Sponsored by the American Neurotology Society. This workshop will be held in conjunction with the 2017 AAO-HNSF Annual Meeting in Chicago, IL 9/8/17.

Panelist: "SYMPO10: Head and Neck Tumors in Paediatric ENT" Presented at the International Federation of Otorhinolaryngological Societies (IFOS) ENT World Congress 2017, Paris, France. Moderator: V. Couloigner; Panel Members: F. Kolb, M. Kuo, M. Pellicer, R. Hagen. (6/25/17)

Cohen M, Germiller J; Sie K; Kazahaya K; Horn D. Panel: Controversies in Pediatric Cochlear Implantation. Annual Meeting of ASPO; 2017 May 20; Austin, TX.

Kazahaya K. Moderator: "Master Video 6: Reconstruction Techniques for Skull Base Defects: From Tiny to Huge. 2017 North American Skull Base Society Annual Meeting; 2017 Mar 3-5; New Orleans, LA

Awards and Honors

2017-2019, Philadelphia Magazine "Top Doctors"
2017, Castle and Connelly, America's Top Doctors
2017, Honors Award, American Academy of Otolaryngology-Head and Neck Surgery Foundation
2016, Top Docs for Kids, SJ Magazine
2014, Armada Certified Specialty Physician
2013, Best Doctors, SJ Magazine
2013, "No Kidding...Presenting the best doctors for children in the Philadelphia area" Suburban Life
2011, Top Pediatric ENT-Otolaryngologists, US News & World Report
2010, Best Children's Physicians, SJ Magazine
2009, 2011, Top Physicians of South Jersey. SJ Magazine
2008-2015, Top Docs, Philadelphia Magazine
2007, 2009, 2014,Top Docs for Kids, SJ Magazine
2005, Quality Care Award presented by the Society for Ear, Nose and Throat Advances in Children (SENTAC)

Editorial and Academic Positions

Editorial Positions

2006-present, Invited Reviewer, Brookes Publishing Co., Baltimore, MD
2004-present, Invited Article Reviewer, Laryngoscope
2004-present, Invited Article Reviewer, Ear and Hearing: Ted Meyer, Section Ed.

Academic and Institutional Committees

2019, New Examiner, American Board of Otolaryngology – Head & Neck Surgery
2013-present, Member, Physician Advisory Council
2006-present, Member, Perioperative Infections Committee
2004-present, Member, Committee on Perioperative Antibiotic Administration
2004-present, Member, Operating Complex Design Committee
2000-present, Admissions Interviewer, University of Pennsylvania, School of Medicine
2000-present, ORL-HNS Residency Candidate Interviewer, University of Pennsylvania School of Medicine 

Leadership and Memberships

Memberships in Professional Organizations

International

2019-present, International Society for Otitis Media
2017-present, Asia-Pacific Society of Thyroid Surgery
- Chair, Symposium 4: Pediatric Thyroid Cancer, 2nd Congress
2014-present, European Society of Pediatric Otolaryngology
 - 2014-present, Scientific Committee Member
2002-present, North American Skull Base Society

National

2019-present, International AHNS Endocrine Section Liaison to the Asian Federation of Endocrine Societies
2017, American Head & Neck Society
 - 2019-present, Co-Chair, Pediatric Endocrine Surgery Committee of the Endocrine Section
 - 2017, Endocrine Surgery Section Member

2014-present, American Thyroid Association
 - 2017-present, Patient Affairs and Education Committee
 - 2014-present, Surgical Affairs Committee

2005-present, American Society of Pediatric Otolaryngology
2014-present, Nominating Committee Member

2005-present, American College of Surgeons

2003-present, Society for Ear, Nose and Throat Advances in Children
2006-present, Chairman, SENTAC Travel Grant Committee

1996-present,Institute of Electrical and Electronic Engineers

1995-present,American Academy of Facial Plastic and Reconstructive Surgery

1994-present, American Academy of Otolaryngology: Head and Neck Surgery