Ze-Ning Huang1,2,3,4, Wen-Wu Qiu1,2,3,4, Cheng-Hao Liu5, Qi-Yue Chen1,2,3,4, Chao-Hui Zheng1,2,3,4, Ping Li1,2,3,4, Jia-Bin Wang1,2,3,4, Jian-Xian Lin1,2,3,4, Jun Lu1,2,3,4, Long-Long Cao1,2,3,4, Mi Lin1,2,3,4, Ru-Hong Tu1,2,3,4, Ju-Li Lin1,2,3,4, Hua-Long Zheng1,2,3,4, Guang-Tan Lin1,2,3,4, Chang-Ming Huang6,7,8,9. 1. Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001, Fujian Province, China. 2. Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. 3. Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. 4. Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China. 5. Department of Gastrointestinal Surgery, Qinghai University Affiliated Hospital, Xining, China. 6. Department of Gastric Surgery, Fujian Medical University Union Hospital, No. 29 Xinquan Road, Fuzhou, 350001, Fujian Province, China. hcmlr2002@163.com. 7. Department of General Surgery, Fujian Medical University Union Hospital, Fuzhou, China. hcmlr2002@163.com. 8. Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. hcmlr2002@163.com. 9. Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China. hcmlr2002@163.com.
Abstract
BACKGROUND: This study evaluated the safety, effectiveness, and feasibility of indocyanine green (ICG) tracing in guiding lymph-node (LN) dissection during laparoscopic D2 radical gastrectomy in patients with advanced gastric cancer (AGC) after neoadjuvant chemotherapy (NAC). METHOD: We retrospectively analyzed data on 313 patients with clinical stage of cT1-4N0-3M0 who underwent laparoscopic radical gastrectomy after NAC between February 2010 and October 2020 from two hospitals in China. Grouped according to whether ICG was injected. For the ICG group (n = 102) and non-ICG group (n = 211), 1:1 propensity matching analysis was used. RESULTS: After matching, there was no significant difference in the general clinical pathological data between the two groups (ICG vs. non-ICG: 94 vs. 94). The average number of total LN dissections was significantly higher in the ICG group and lower LN non-compliance rate than in the non-ICG group. Subgroup analysis showed that among patients with LN and tumor did not shrink after NAC, the number of LN dissections was significantly more and LN non-compliance rate was lower in the ICG group than in the non-ICG group. Intraoperative blood loss was significantly lesser in the ICG group than in the non-ICG group, while the recovery and complications of the two groups were similar. CONCLUSION: For patients with poor NAC outcomes, ICG tracing can increase the number of LN dissections during laparoscopic radical gastrectomy, reduce the rate of LN non-compliance, and reduce intraoperative bleeding. Patients with AGC should routinely undergo ICG-guided laparoscopic radical gastrectomy.
BACKGROUND: This study evaluated the safety, effectiveness, and feasibility of indocyanine green (ICG) tracing in guiding lymph-node (LN) dissection during laparoscopic D2 radical gastrectomy in patients with advanced gastric cancer (AGC) after neoadjuvant chemotherapy (NAC). METHOD: We retrospectively analyzed data on 313 patients with clinical stage of cT1-4N0-3M0 who underwent laparoscopic radical gastrectomy after NAC between February 2010 and October 2020 from two hospitals in China. Grouped according to whether ICG was injected. For the ICG group (n = 102) and non-ICG group (n = 211), 1:1 propensity matching analysis was used. RESULTS: After matching, there was no significant difference in the general clinical pathological data between the two groups (ICG vs. non-ICG: 94 vs. 94). The average number of total LN dissections was significantly higher in the ICG group and lower LN non-compliance rate than in the non-ICG group. Subgroup analysis showed that among patients with LN and tumor did not shrink after NAC, the number of LN dissections was significantly more and LN non-compliance rate was lower in the ICG group than in the non-ICG group. Intraoperative blood loss was significantly lesser in the ICG group than in the non-ICG group, while the recovery and complications of the two groups were similar. CONCLUSION: For patients with poor NAC outcomes, ICG tracing can increase the number of LN dissections during laparoscopic radical gastrectomy, reduce the rate of LN non-compliance, and reduce intraoperative bleeding. Patients with AGC should routinely undergo ICG-guided laparoscopic radical gastrectomy.
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