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Short-Term Outcomes of Laparoscopic Proximal Gastrectomy With DoubleTract Reconstruction Versus Laparoscopic Total Gastrectomy for Upper Early Gastric Cancer: A KLASS 05 Randomized Clinical Trial

Hwang, SH | Park, DJ | Kim, HH | Hyung, WJ | Hur, H  | Yang, HK | Lee, HJ | Kim, HI | Kong, SH | Kim, YW | Lee, HH | Kim, BS | Park, YK | Lee, YJ | Ahn, SH | Lee, IS | Suh, YS | Park, JH | Ahn, S | Han, SU
Journal of the Korean Gastric Cancer Association, 22(2). : 94-106, 2022
Journal Title
Journal of the Korean Gastric Cancer Association
PURPOSE: Laparoscopic proximal gastrectomy with double-tract reconstruction (LPG-DTR) is a function-preserving procedure performed for treating upper early gastric cancer (EGC). However, few studies have compared the outcomes of LPG-DTR with those of laparoscopic total gastrectomy (LTG). This study aimed at comparing the short-term outcomes of LPG-DTR between LTG and upper EGC. MATERIALS AND METHODS: For upper-third EGC, a multicenter, prospective, randomized trial was performed to compare those who underwent LPG-DTR with those who underwent LTG. Short-term outcomes, including clinicopathologic results, morbidity, mortality, and postoperative courses, were evaluated using a full analysis set based on the intention-to-treat principle and the per-protocol set. RESULTS: Of the patients, 138 who fulfilled the criteria were randomized to each group. One patient in the LPG-DTR group withdrew consent. Sixty-eight patients underwent LPG-DTR and 69 underwent LTG. The operative time (LPG-DTR=219.4 minutes; LTG=201.8 minutes; P=0.085), estimated blood loss (LPG-DTR=76.0 mL; LTG=66.1 mL; P=0.413), and the morbidity rate (LPG-DTR=23.5%; LTG=17.4%; P=0.373) between the groups were not significantly different. No mortality occurred in either of the study groups. Two weeks post operation, the Visick scores for postprandial symptoms, including reflux symptoms, were not significantly different between the groups (P=0.749). Laboratory findings on postoperative day 5 were not significantly different between the groups. CONCLUSIONS: The short-term outcomes of LPG-DTR for upper EGC were comparable to those of LTG. TRIAL REGISTRATION: Identifier: NCT02892643.

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한, 상욱  |  허, 훈
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