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◆要旨:[背景]2D腹腔鏡(2D)を用いて行う手術での深部感覚に関する困難性の問題を解決すべく3D腹腔鏡(3D)が開発されてきた.[目的]腹腔鏡下鼠径ヘルニア根治術を想定したトレーニングボックス内での腹膜縫合における3Dの有益性を評価する.[方法]12人の医師が与えられたタスクとしての鼠径部モデルでの腹腔鏡下腹膜縫合閉鎖を2Dと3Dの両者によって遂行した.客観的評価として所要時間およびエラー回数を測定し,主観的評価としてアンケートによる自己評価を行った.[結果]タスク遂行に要した時間は3Dが2Dより短く(3D:943秒,2D:1,365秒,p<0.01),エラー回数は3Dが2Dより少なかった(3D:6回,2D:33回,p<0.01).アンケートではすべての参加者が3Dを2Dよりも高く評価した(p<0.01).[結論]腹腔鏡下の縫合結紮おける3Dは外科医にとって助けとなる可能性が示唆された.臨床における有用性確認には今後の検討が必要である.
[Background] Although laparoscopic surgery is a widely used procedure, two-dimensional laparoscopy(2D) may cause loss of depth perception for surgeons. To solve this problem, three-dimensional laparoscopy(3D) has been developed. [Objective] The aim of this study is to evaluate whether 3D provides greater benefit in surgical performance and subjective experience than 2D when used for suturing of the peritoneum in a simulated setting for laparoscopic hernia repair. [Methods] Twelve physicians participated in the study and performed suturing following a template in a box inguinal trainer using both 2D and 3D laparoscopes. Total performance time and number of errors were measured as objective parameters by analyzing the recorded video. Subjective evaluation using a questionnaire was also performed. [Results] The time taken for the task using 3D was significantly shorter than the time for 2D(3D : 943 seconds, 2D : 1,365 seconds, p<0.01). The number of errors was significantly less when 3D was used compared to 2D(3D : 6, 2D :33, p<0.01). In the post-study questionnaire, all participants preferred 3D to 2D(p<0.01). [Conclusion] Our results suggest that the 3D will be helpful for surgeons to perform intracorporeal suturing. The impact of 3D laparoscopy on clinical outcomes is yet to be examined.
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