Short-term outcomes of robot-assisted ultralow anterior resection and robot-assisted rectectomy with transanal anastomosis for rectal cancer in Japan: A multicenter retrospective cohort study (ROSEMARY study).
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Miyo Masaaki, Shiomi Akio, Lee Sang-Woong, Fukunaga Yosuke, Hiro Junichiro, Kinugasa Yusuke, Nomura Akinari, Ohno Riki, Kawai Kazushige, Yasui Masayoshi, Yamakawa Yushi, Takahashi Hiroki, Miura Takuya, Murata Kohei, Kotake Masanori, Katsuno Hidetoshi, Kobayashi Akihiro, Yokota Mitsuru, Matsuhashi Nobuhisa, Tei Mitsuyoshi, Hasegawa Suguru, Ozawa Mayumi, Takano Yoshinao, Kanemitsu Yukihide, Hazama Hiroyuki, Nonaka Takashi, Ishizaki Tetsuo, Uemura Mamoru, Obatake Masayoshi, Kagawa Yoshinori, Ishihara Soichiro, Okuya Koichi, Sakai Yoshiharu, Watanabe Masahiko, Takemasa Ichiro
Аннотация
METHODS: This multicenter retrospective study was performed by a total of 31 institutions with the largest number of robot-assisted rectal cancer surgeries based on the survey conducted by the Japan Society for Endoscopic Surgery. We retrospectively analyzed a cohort of patients who had undergone robot-assisted ultralow anterior resection or robot-assisted intersphincteric resection for rectal cancer between January 2020 and December 2021.
RESULTS: A total of 1,250 patients were enrolled in this study, 40 were excluded, and finally 1,210 (886 robot-assisted ultralow anterior resection and 324 robot-assisted intersphincteric resection) were included in the analysis. The median operating time was 364 minutes (interquartile range, 277-479 minutes) and blood loss 17 mL (interquartile range, 0-50 mL), and conversion to laparotomy occurred in only 1 patient in robot-assisted ultralow anterior resection. A total of 109 (9.0%) patients had postoperative complications of Clavien-Dindo grade III or higher grade within 30 days after operation, with anastomotic leakage being the most common (3.4%), followed by ileus (1.3%), and mortality within 30 days after operation was a rare event, with only 1 death.
CONCLUSION: The ROSEMARY study demonstrated the feasibility and safety of robot-assisted ultralow anterior resection and robot-assisted intersphincteric resection for low rectal cancer.