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Duke Center for Aortic Disease Research Program

Photo of George Charles Hughes IV, MD

George Charles Hughes IV, MD

Office: 3580 White Zone, Duke South, Durham, NC 27710
Campus Mail: Box 3051 Med Ctr, Durham, NC 27710
Phone: 919-668-0903

Scientific Focus


Objective: To further our understanding of the pathophysiology of aortic diseases, develop better surgical and non-surgical treatments, and improve short- and long-term outcomes after thoracic aortic surgery.

Key Projects

Treatment and Outcomes of Acute and Chronic Aortic Dissection

  • Risk factors for Type A dissection
  • Decision analysis in Type A dissection
  • Outcomes of acute Type A dissection repair
  • Management of acute and chronic Type B dissection
  • Understanding aortic remodeling in Type B dissection

Improving Outcomes after Proximal Aortic Surgery

  • Frailty and risk in proximal aortic surgery
  • Preoperative cardiac catheterization and acute kidney injury
  • Deep and moderate hypothermia in aortic arch surgery
  • Antegrade vs. retrograde cerebral perfusion
  • Predictors and management of intraoperative bleeding
  • Predictors of prolonged mechanical ventilation
  • Contemporary results for proximal aortic replacement
  • Circulatory arrest at advanced age

Improving Outcomes after Thoracic Endovascular Aortic Repair (TEVAR)

  • Endovascular repair of descending thoracic aortic aneurysm
  • The role of coronary evaluation before TEVAR
  • Selective preoperative lumbar drain placement for TEVAR
  • Selective left subclavian artery revascularization for TEVAR
  • Intrathoracic subclavian artery aneurysm repair
  • Complications of TEVAR
  • Risk factors for mortality after TEVAR
  • Results of TEVAR six years after FDA approval
  • Mid-term results with TEVAR for chronic Type B aortic dissection

Developing and Advancing Transcatheter Aortic Valve Replacement (TAVR)

  • Transcatheter aortic valve replacement with a self-expanding prosthesis
  • Comparison of short- and mid-term results of Balloon-expandable vs. Self-expanding TAVR
  • Learning curve for TAVR

Understanding the Impact of Socioeconomic Factors on Outcomes after Thoracic Aortic Surgery

  • Insurance status and outcomes of proximal aortic surgery

Management of Bicuspid Aortic Valve (BAV) Disease and Other Genetic Syndromes

  • Individualized thoracic aortic replacement for BAV
  • Total aortic replacement in Loeys-Dietz Syndrome

Understanding the Genetic Basis Underlying Thoracic Aortic Aneurysms (TAA)

  • Plasma biomarkers for distinguishing subtypes of TAA
  • Genomic and metabolomic profiling of TAA


  • Nicholas Andersen - Duke General Surgery Resident Research Award, 2nd Place Winner (2013)
  • Nicholas Andersen - Duke General Surgery Resident Research Award, 1st Place Winner (2014)
  • Brian R. Englum - Finalist AATS C. Walton Lillehei Resident Forum  (2014)
  • Asvin Ganapathi – NIH loan repayment program (2012-2014)
  • Asad Shah - American Thoracic Society International Conference Travel Award (2011)
  • Judson Williams - Samson Resident Finalist, Paul C. Samson Resident Manuscript Competition at the 37th Annual Meeting of the Western Thoracic Surgical Association (2011)
  • Judson Williams - First Place, Podium Presentation at SC-NC American College of Surgeons Annual Meeting, Scientific Session Competition (2010)

Latest Publications

Marquis-Gravel, Guillaume, Amanda Stebbins, Andrzej S. Kosinski, Morgan L. Cox, J Kevin Harrison, G Chad Hughes, Vinod H. Thourani, et al. “Geographic Access to Transcatheter Aortic Valve Replacement Centers in the United States: Insights From the Society of Thoracic Surgeons/American College of Cardiology Transcatheter Valve Therapy Registry.” Jama Cardiol 5, no. 9 (September 1, 2020): 1006–10.

Full Text

Schwartz, Fides Regina, Tina Tailor, Jeffrey G. Gaca, Todd Kiefer, Kevin Harrison, G Chad Hughes, Juan-Carlos Ramirez-Giraldo, Daniele Marin, and Lynne M. Hurwitz. “Impact of dual energy cardiac CT for metal artefact reduction post aortic valve replacement.” Eur J Radiol 129 (August 2020): 109135.

Full Text