Aaron Lewis

City Of Hope National Medical Center, City of Hope

Papers

Total Citations

H-Index

About

Dr. Aaron Lewis is a surgical oncologist whose research focuses on minimally invasive and robotic approaches to gastrointestinal cancers, particularly pancreatic and gastric malignancies. His work has significantly advanced the understanding of patient selection and perioperative outcomes in complex oncologic surgery. Dr. Lewis’s most cited study, “Minimally invasive distal pancreatectomy: greatest benefit for the frail” (2017, 41 citations), demonstrated that frail patients derive disproportionate advantages from minimally invasive techniques, challenging conventional surgical risk paradigms and influencing clinical guidelines. More recently, his investigation into “Risk of Open Conversion During Robotic Gastrectomy for Gastric Cancer” (2025) provides critical insights into optimizing patient selection to reduce conversion rates and improve recovery. By identifying preoperative factors that predict open conversion, this work equips surgeons with evidence-based tools to enhance robotic gastrectomy outcomes. Dr. Lewis’s contributions bridge the gap between surgical innovation and personalized care, ensuring that advanced technologies are applied to the patients who benefit most. His research continues to shape the evolution of minimally invasive oncologic surgery, with implications for reducing morbidity and improving quality of life in vulnerable populations.