Effect of different lymph node dissection methods on the number of lymph nodes detected and prognosis in gallbladder cancer

Abstract

At present, the extent of lymph node dissection (LND) for radical gallbladder cancer (GBC) is still controversial, and there is no evidence that LND improves prognosis, however, the latest guidelines for GBC recommend that removal of more than 6 lymph nodes facilitates staging of regional lymph nodes. The aim of this study is to investigate the effect of different LND methods on the number of lymph nodes detected and assess the prognostic factors during radical resection of GBC. This study retrospectively analyzed 133 patients (46 men and 87 women; average age: 64.01, range: 40-83 years) who underwent radical resection of GBC in a single center between July 2017 and July 2022, of which 41 underwent fusion lymph node dissection (FLND) and 92 underwent standard lymph node dissection (SLND). Baseline data, surgical results, number of LNDs, and follow-up data were analyzed. Each patient was followed up every 3 months. The total number of lymph nodes detected after the operation was 12.00 ± 6.95 versus 6.10 ± 4.71 (P < .05). The number of positive lymph nodes detected was (mean) 1.85 versus 0.78 and (percentage) 15.45% versus 12.83% (P < .05). Postoperative complications (8 vs 23, P > .05). The progression-free survival was 13 versus 8 months, the median survival time was 17 versus 9 months (P < .05). This study concluded that FLND can increase the detection rate of total lymph nodes and positive lymph nodes after surgery, which can prolong the survival time of patients.