Article ; Online: Impact of tumor stage and neoadjuvant chemotherapy in fluorescence-guided lymphadenectomy during laparoscopic gastrectomy for gastric cancer: A propensity score-matched study in a western center.
2023 Volume 175, Issue 2, Page(s) 380–386
Abstract: Background: The use of indocyanine green fluorescence has been shown to be a safe and effective method for improving lymph node retrieval in patients with gastric cancer. However, previous studies have focused on early-stage tumors and/or the Asian ... ...
| Abstract | Background: The use of indocyanine green fluorescence has been shown to be a safe and effective method for improving lymph node retrieval in patients with gastric cancer. However, previous studies have focused on early-stage tumors and/or the Asian population and excluded patients who received neoadjuvant treatment. Methods: In this study, 142 patients with gastric adenocarcinoma underwent laparoscopic gastrectomy at a Spanish hospital between January 2017 and December 2022. Of these, 42 patients received preoperative indocyanine green injection to guide lymphadenectomy. Their outcomes were compared to a retrospective cohort of 42 patients after 1:1 propensity score matching. Results: The feasibility of indocyanine green lymphatic mapping was 95.5%. No complications associated with indocyanine green injection were observed. The indocyanine green group had a significantly higher number of retrieved lymph nodes than the non-indocyanine green group (32.67 vs 25.14; P = .013). This statistically significant difference was maintained across subgroups of neoadjuvant treatment, non-obese patients, pT0 to 2 stage, and pN0 stage. In 47.6% of patients from the indocyanine green group, lymphadenectomy was extended outside the standard D2 dissection area based on indocyanine green uptake, but none of the retrieved lymph nodes were metastatic. There were no differences in postoperative complications and length of hospital stay between the 2 groups. Conclusion: Indocyanine green-guided lymphadenectomy is safe and feasible and increases the number of retrieved lymph nodes compared to conventional lymphatic dissection, as well as in patients receiving neoadjuvant chemotherapy. The use of indocyanine green should be routine if available for guiding lymph node dissection in gastric cancer, regardless of tumor stage or previous neoadjuvant treatment. However, further studies are needed to determine the impact of this technique on disease-free and overall survival. |
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| MeSH term(s) | Humans ; Stomach Neoplasms/drug therapy ; Stomach Neoplasms/surgery ; Neoadjuvant Therapy ; Retrospective Studies ; Indocyanine Green ; Propensity Score ; Lymph Node Excision/methods ; Lymph Nodes/surgery ; Lymph Nodes/pathology ; Laparoscopy/methods ; Gastrectomy/methods |
| Chemical Substances | Indocyanine Green (IX6J1063HV) |
| Language | English |
| Publishing date | 2023-11-30 |
| Publishing country | United States |
| Document type | Journal Article |
| ZDB-ID | 202467-6 |
| ISSN | 1532-7361 ; 0039-6060 |
| ISSN (online) | 1532-7361 |
| ISSN | 0039-6060 |
| DOI | 10.1016/j.surg.2023.10.032 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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