Laparoscopic cholecystectomy using a newly developed laparoscope manipulator for 10 patients with cholelithiasis

K. Tanoue, T. Yasunaga, E. Kobayashi, S. Miyamoto, I. Sakuma, T. Dohi, K. Konishi, S. Yamaguchi, N. Kinjo, K. Takenaka, Y. Maehara, M. Hashizume

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Background: Laparoscopic surgery has continued to gain popularity in almost all fields of abdominal surgery, and robotic systems have been introduced in general surgery. Naviot is a new remote-controlled laparoscope manipulator system controlled by the operator's hand. This study assessed its introduction into clinical practice. Methods: A group of 10 consecutive patients with cholelithiasis underwent laparoscopic cholecystectomy assisted by the Naviot system (Naviot group). Another group of 41 patients who underwent laparoscopic cholecystectomy with a conventional human camera holder (human camera group) were selected for a comparison of their operative results with those of the Naviot group. Results: The operative time of 89.3 ± 27.1 min for the Naviot group was significantly longer than that of 74.8 ± 28.1 min for the human camera group (p < 0.05). However, when the setup time for the Naviot system was excluded, the operative time was not significantly different from that for the human camera group. Other operative results showed no significant difference between the two groups. Conclusion: The authors believe that the new Naviot system is feasible for clinical use, and that it enables surgeons to perform solo gastrointestinal surgery.

Original languageEnglish
Pages (from-to)753-756
Number of pages4
JournalSurgical Endoscopy and Other Interventional Techniques
Issue number5
Publication statusPublished - May 2006

All Science Journal Classification (ASJC) codes

  • Surgery


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