Keiji Hayata
Papers
13
Total Citations
358
H-Index
8
About
Keiji Hayata is a surgical researcher specializing in minimally invasive and robotic approaches to gastric cancer treatment, with a particular focus on robotic gastrectomy and lymph node dissection techniques. His work has significantly advanced the understanding of how robotic surgery compares to conventional laparoscopic gastrectomy, examining outcomes ranging from complication rates to procedural efficiency. Hayata's most influential contribution, a 2021 study on short-term outcomes of robotic versus laparoscopic gastrectomy, has garnered over 220 citations and demonstrated that robotic gastrectomy may reduce serious intra-abdominal infectious complications, including pancreatic fistula and abscess. Building on this, he designed a landmark randomized controlled trial protocol to rigorously evaluate these two approaches — work that has shaped the field's research agenda. His 2019 paper on robotic radical lymphadenectomy introduced a technique that minimizes pancreatic contact during surgery, addressing one of the most delicate challenges in gastric cancer operations. Beyond comparative studies, Hayata has innovated in surgical reconstruction techniques, including proximal gastrectomy with fundoplication, double tract reconstruction, and Roux-en-Y procedures. His body of work reflects a commitment to refining robotic surgical systems and optimizing patient safety, making him a notable voice in advancing minimally invasive oncological surgery.
Research Focus
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Top Papers
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