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Joseph A Paydarfar, MD

Title(s)
Associate Professor of Surgery

Additional Titles/Positions/Affiliations
Chief, Section of Otolaryngology, Audiology & Maxillofacial Surgery
Adjunct Associate Professor of Engineering

Department(s)
Surgery

Education
BSE Duke University
MD Duke University
Residency in Otolaryngology - Head & Neck Surgery, Washington University in St. Louis
Fellowship in Microvascular/Head & Neck Surgery, Hahnemann University Hospital

Programs
Dartmouth Cancer Center

Websites Halter lab:

https://sites.google.com/dartmouth.edu/halter-lab/
https://engineering.dartmouth.edu/research/enabling-technologies-for-effective-image-guided-surgical-navigation
NCBI Bibliography:

https://www.ncbi.nlm.nih.gov/myncbi/16i0inv_uthkY/bibliography/public/

Contact Information

Section of Otolaryngology, Dartmouth Hitchcock Medical Center
1 Medical Center Drive
Lebanon NH 03756

Phone: 6036508123


Grant Information

Ongoing Research Support
Project number: 287103.594000.2012
Contact Principal Investigator: Joseph Paydarfar MD
Source of support: Norris Cotton Cancer Center Pilot Award
Title of project/subproject: Development and validation of a CT compatible retractor system for image guided transoral robotic cancer resection
Dates of approved/proposed project: 8/1/2019 – 6/30/2021

Project Number: 1R21CA246158-01
Sponsor/Funding Source: NIH
Contact Principal Investigator: Ryan Halter PhD
Award Period: 07/01/20 – 06/30/22
Project Title: Image guidance for trans-oral robotic surgery
Major Goals: The overarching aims of this program are to reduce complications and improve outcomes for minimally invasive robot-assisted throat cancer surgery by enhancing the surgeon’s ability to assess tumor extent and localize vascular and other critical anatomic structures. We aim to examine the feasibility of image guidance technology by developing CT compatible instrumentation and taking advantage of existing intraoperative CT and surgical navigation resources to develop a framework for image-guided trans-oral robotic surgery (igTORS).


Completed Research Support
Norris Cotton Cancer Center Hopeman Fund for Clinical Research (Paydarfar/Halter) 1/1/2018-11/30/2019
Title: Upper aerodigestive tract pressure measurement during operative laryngoscopy for cancer resection. Goal: Develop a pressure sensing laryngoscope to assess typical forces imparted on the scope during laryngoscopy.

Department of Surgery Faculty Development Award, Dartmouth-Hitchcock Medical Center 4/18 – 4/19
Title: Toward improving outcomes in trans-oral surgery for head and neck cancer.
Goal: Provide FTE salary support for laryngoscopy pressure study, clinical outcomes of TORS/TOS review at Dartmouth Hitchcock, and optical imaging study examining a unique EGFR affibody for head and neck SCCa.

Norris Cotton Cancer Center Development Funds (Paydarfar/Halter/Pastel)
2017
Title: Testing the Efficacy of Image Guidance for Trans-Oral Surgery.
Goal: The aim of this study was to evaluate the benefit of intraoperative imaging during laryngoscopy-based procedures on cadaver models.
Role: Co-PI

SYNERGY Pilot and Collaborative Studies Program (Paydarfar/Halter)
2015-2016
The Dartmouth Clinical and Translational Science Institute
Title: Improving trans-oral surgical outcomes through intra-operative image guidance.
Goal: Develop a CT/MR compatible laryngoscope to evaluate the potential of intra-operative image guidance for trans-oral surgery

Black C, Paydarfar J. Targeting Aberrant S-Phase Cell Cycle Proteins as a Diagnostic Adjunct and Predictor of Disease Progression in Oral Mucosal Biopsies. NCCC 2009 Prouty Research Grant.

Williams BB, Paydarfar JA, Gosselin B, Jiang S, Swartz HM. EPR Oximetry Measurements in Patients Undergoing Free Flap Reconstruction to Assess Tissue Viability, NCCC 2007 Prouty Research Grant

Paydarfar JA. Wound complications in head and neck surgery – institutional and national outcomes. Dartmouth Hitchcock Medical Center, Department of Surgery, 2005 Harmes Scholarship.

Biography

Dr. Paydarfar is Chief, Division of Otolaryngology, Audiology and Maxillofacial Surgery at the Dartmouth-Hitchcock Medical Center, Associate Professor of Surgery - Otolaryngology at the Dartmouth Geisel School of Medicine, and Adjunct Associate Professor of Engineering, Thayer School of Engineering at Dartmouth. After obtaining his MD at Duke University he completed his residency in Otolaryngology at Washington University in St. Louis and Head and Neck Oncologic and Reconstructive Fellowship at Hahnemann Hospital in Philadelphia. His clinical interests are in head and neck oncologic and reconstructive surgery, trans-oral laser microsurgery, and trans-oral robotic surgery. His research interests include minimally invasive approaches and surgical navigation in head and neck surgery.


Selected Publications

 

Evaluating safety of observation after resection of low- and intermediate-grade major salivary cancers with isolated perineural invasion with or without facial nerve sacrifice.
Bourdillon AT, Callas P, Sajisevi M, Plonowska-Hirschfeld KA, Holcomb A, Ryan WR, American Head and Neck Society Salivary Gland Section
Am J Otolaryngol. 2025 Dec 2;47(1):104773. doi: 10.1016/j.amjoto.2025.104773. Epub 2025 Dec 2.
PMID: 41343952

Electrical Impedance-based Classification for In Vivo Oral Cancer Detection.
Lloyd SA, Zaghlula N, Suratwala SS, Moran J, Murphy EK, Paydarfar JA, Halter RJ
Annu Int Conf IEEE Eng Med Biol Soc. 2025 Jul;2025:1-6. doi: 10.1109/EMBC58623.2025.11253845.
PMID: 41337171

Porcine Training Models for Image-Guided Transoral Robotic Surgery.
Shi Y, Zhao S, Paydarfar JA, Kokko MA, Halter RJ
Annu Int Conf IEEE Eng Med Biol Soc. 2025 Jul;2025:1-5. doi: 10.1109/EMBC58623.2025.11251558.
PMID: 41336823

Practice Patterns in Management of Low- to Intermediate-Grade Salivary Gland Carcinoma: A Multi-Institutional Study.
Sajisevi M, Nguyen K, Callas P, Holcomb AJ, Vural E, Davis KP, Thomas CM, Stein JS, Asarkar A, Aulet R, Bell RK, Blasco MA, Bowmaster VB, Burruss CP, Chung J, Chan K, Chang BA, Coffey CS, Cognetti DM, Cooper DJ, Cordero J, Donovan J, Du YJ, Dundar Y, Dedivitis R, Edwards H, Erovic BM, Eskander A, Feinberg PA, Garvey EA, Goldstein D, Goodman JF, Goulart RN, Goyal N, Grasl S, Giurintano J, Gupta N, Habib A, Hackman T, Hara JH, Henson C, Hinni ML, Hua N, Johnson-Obaseki S, Juloori A, Kalman NS, Kejner A, Khaja SF, Ku JA, Lambert A, Luu BK, Magliocca KR, Medina Dos Santos LR, Michael C, Miles B, de Melo GM, Moore MG, Morand GB, Moura K, Noroozi H, Patel R, Paydarfar J, Plonowska-Hirschfeld KA, Sadeghi N, Savaria F, Schmitt NC, Shapiro J, Shaver TB, Stoeckli SJ, Stokes WA, Sulibhavi A, Tasoulas J, Vendra V, Vinh DB, Virgen CG, Woody NM, Young GD, Kakarala K, Enepekides DJ, Hier MP, Davies L, Ryan WR
Laryngoscope Investig Otolaryngol. 2025 Oct;10(5):e70246. doi: 10.1002/lio2.70246. Epub 2025 Sep 23.
PMID: 40995062

In Vivo Classification of Oral Lesions Using Electrical Impedance Spectroscopy.
Lloyd SA, Lee TE, Murphy EK, Doussan AF, Thones JP, Kerr DA, Paydarfar JA, Halter RJ
IEEE Trans Biomed Eng. 2025 Jun 19;PP doi: 10.1109/TBME.2025.3581465. Epub 2025 Jun 19.
PMID: 40536863

A prognostic model for use before elective surgery to estimate the risk of postoperative pulmonary complications (GSU-Pulmonary Score): a development and validation study in three international cohorts.
NIHR Global Health Research Unit on Global Surgery, STARSurg Collaborative
Lancet Digit Health. 2024 Jul;6(7):e507-e519. doi: 10.1016/S2589-7500(24)00065-7.
PMID: 38906616

An Imaging-Compatible Oral Retractor System for Transoral Robotic Surgery.
Shi Y, Wu X, Paydarfar JA, Halter RJ
Ann Biomed Eng. 2024 Sep;52(9):2473-2484. doi: 10.1007/s10439-024-03536-7. Epub 2024 May 25.
PMID: 38796669

Estimating tongue deformation during laryngoscopy using a hybrid FEM-multibody model and intraoperative tracking - a cadaver study.
Wu X, Sanchez CA, Lloyd JE, Borgard H, Fels S, Paydarfar JA, Halter RJ
Comput Methods Biomech Biomed Engin. 2025 May;28(6):739-749. doi: 10.1080/10255842.2023.2301672. Epub 2024 Jan 9.
PMID: 38193213

The art of specimen orientation: Two-dimensional maps for oropharynx squamous cell carcinoma.
Divakar P, Kim SS, Kerr DA, Pettus JR, Paydarfar JA
Head Neck. 2024 Mar;46(3):702-707. doi: 10.1002/hed.27613. Epub 2023 Dec 20.
PMID: 38116698

Oncologic Safety of Close Margins in Patients With Low- to Intermediate-Grade Major Salivary Gland Carcinoma.
Sajisevi M, Nguyen K, Callas P, Holcomb AJ, Vural E, Davis KP, Thomas CM, Plonowska-Hirschfeld KA, Stein JS, Eskander A, Kakarala K, Enepekides DJ, Hier MP, Ryan WR, American Head and Neck Society Salivary Gland Section, Asarkar AA, Aulet R, Bell RK, Blasco MA, Bowmaster VB, Burruss CP, Chung J, Chan K, Chang BA, Coffey CS, Cognetti DM, Cooper DJ, Cordero J, Donovan J, Du YJ, Dundar Y, Dedivitis RA, Edwards HA, Erovic BM, Feinberg PA, Garvey EA, Goldstein DP, Goodman JF, Goulart RN, Goyal N, Grasl S, Giurintano JP, Gupta N, Habib AM, Hackman TG, Hara JH, Henson C, Hinni ML, Hua N, Johnson-Obaseki S, Juloori A, Kalman NS, Kejner AE, Khaja SF, Ku JA, Lambert A, Luu BK, Magliocca KR, Dos Santos LRM, Michael C, Miles BA, de Melo GM, Moore MG, Morand GB, Moura K, Mukdad L, Noroozi H, Patel R, Paydarfar JA, Sadeghi N, Savaria FN, Schmitt NC, Shapiro J, Shaver TB, Stoeckli SJ, St John M, Stokes WA, Sulibhavi A, Tasoulas J, Vendra V, Vinh DB, Virgen CG, Wooten C, Woody NM, Young GD
JAMA Otolaryngol Head Neck Surg. 2024 Feb 1;150(2):107-116. doi: 10.1001/jamaoto.2023.3952.
PMID: 38095911

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