Christopher Holsinger

Presentation
Traditional oropharyngeal cancer(OPC) treatment has relied on radiation therapy with or without chemotherapy, but treatment de-escalation strategies have emerged for patients with HPV+OPC seeking less intensive approaches while maintaining cure rates. Head and neck multidisciplinary teams have embraced these de-escalation philosophies to preserve oncologic efficacy while reducing treatment-related morbidity.

However, major de-escalation trial failures including RTOG1016, De-ESCALATE, and NRG HN-005 have elevated surgery’s role as a critical treatment option. Surgery now offers younger, healthier populations cure opportunities with reduced toxicity compared to intensive chemoradiation protocols.

The ECOG3311 trial exemplifies surgical de-escalation approaches, examining transoral surgery followed by pathology-based adjuvant treatment in HPV-associated oropharyngeal cancer. This phase II study by the ECOG-ACRIN Cancer Research Group involves comprehensive teams from major cancer centers. Long-term 4.5-year follow-up data provides crucial insights into oncologic outcomes, establishing the safety and efficacy of reduced-intensity protocols while maintaining cancer control rates comparable to traditional intensive approaches.

With surgery’s expanded role, robotic surgical techniques have become increasingly important. Modern robotic surgery has evolved from multiport systems to the new gold standard: single-port technology.

The daVinci SP system provides enhanced access to confined anatomical spaces through a single port accommodating two or three working arms plus a 1.2-cm flexible endoscopic camera. This configuration allows surgeons to perform simultaneous dissection and traction with improved tissue control in the narrow confines of the H&N. The flexible camera with digital zoom capabilities offers superior visualization and magnification across different pharyngeal compartments, while demonstrating significantly reduced docking times compared to multiport systems.  Flexible stereo-endoscopes offer adjustable viewing angles of +30°, 0°, and -30°, providing comprehensive visual access to surgical sites. Advanced 1080p resolution systems deliver substantially improved visualization capabilities compared to earlier 720p systems, particularly when integrated with specialized surgical platforms. The SP system provides comparable safety and oncologic outcomes to multiport systems while offering technical advantages including bipolar-energized instruments, a usable third surgical arm, and improved camera image quality that enhance surgical precision in transoral procedures.

Despite technological advances, head and neck surgeons must remain anchored in sound oncologic surgery principles. Surgical margin management has achieved increased precision through systematic protocols involving marking 15mm margins, cutting at 10mm distances, and achieving 5mm final margins to ensure adequate tissue removal while preserving healthy structures. This methodology supports comprehensive four-quadrant mucosal margin assessment, demonstrating how advanced technology complements fundamental surgical principles in modern cancer treatment.

Robotic surgery has become an essential component of multidisciplinary HPV-mediated oropharyngeal cancer care, offering younger patient populations the opportunity for treatment de-escalation through precise transoral resection while maintaining high overall survival rates comparable to traditional intensive chemoradiation approaches.

Bio
Dr. Chris Holsinger currently serves as Professor of Head and Neck Surgery at Stanford University.

From 2003-2013, Dr. Holsinger worked at the Department of Head and Neck Surgery at the University of Texas M.D. Anderson Cancer Center.   In 2013, Dr. Holsinger moved to Stanford University to serve as Chief of Head and Neck Surgery, where he also led H&N Multidisciplinary Cancer Care Clinical Program.  Dr Holsinger’s research focuses on surgical innovation, AI, and clinical trials. He currently serves Co-Chair of the Surgical Subcommittee, for the NRG Oncology’s Head and Neck Working Group.   He served as surgical PI for RTOG920, the largest post-op clinical trial in H&N oncology, and also served as head of surgeon credentialing for ECOG3311. His current research focuses on AI in surgery, as well as multimodal profiling of HPV-mediated oropharynx cancer.

He graduated in 1990 cum laude from Vanderbilt College of Arts and Sciences with a major in molecular biology and in 1995 with his medical degree from Vanderbilt School of Medicine.  He completed his internship and residency at Baylor College of Medicine and his Fellowship in head and neck surgical oncology at The University of Texas M. D. Anderson Cancer Center. In 2003, he was awarded Fulbright Scholarship to study surgery at the University of Paris with Professor Ollivier Laccourreye and with Professor Wolfgang Steiner at the Georg-August University in Göttingen.