<p>Laparoscopic resection (LR) for T4 colon cancer (CC) remains controversial due to concerns about oncological radicality and the lack of tactile feedback. In their recent propensity score matched study, Jiang et al. provide valuable evidence that LR can achieve comparable short and long term outcomes to open resection (OR) in this challenging subgroup. We highlight several clinically important observations. First, the LR group yielded significantly more harvested lymph nodes than the OR group (18.2 vs. 14.3, P = 0.001), suggesting that magnified visualization may compensate for the absence of palpation and enable adequate mesocolic excision. Second, despite a significantly lower adjuvant chemotherapy rate in the LR group (37.3% vs. 62.7%, P = 0.003), overall and disease free survival were equivalent, which may reflect reduced surgical trauma and better preservation of physiological reserve. Third, the T4b subgroup analysis, although underpowered, showed a trend toward lower recurrence in the LR arm, but these findings require cautious interpretation. The authors appropriately emphasize that LR should be reserved for high volume centres with experienced surgeons, and the exclusion of converted cases underscores the need for rigorous preoperative selection. Overall, this study supports LR as a viable option for selected T4 CC patients. Future multicentre research, possibly incorporating robotic platforms, will be essential to confirm these promising results and refine patient selection criteria.</p>

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Laparoscopic surgery for T4 colon cancer: balancing oncological radicality and minimally invasive benefits

  • Meng Zhao,
  • Meiying Bai,
  • Ming Wang

摘要

Laparoscopic resection (LR) for T4 colon cancer (CC) remains controversial due to concerns about oncological radicality and the lack of tactile feedback. In their recent propensity score matched study, Jiang et al. provide valuable evidence that LR can achieve comparable short and long term outcomes to open resection (OR) in this challenging subgroup. We highlight several clinically important observations. First, the LR group yielded significantly more harvested lymph nodes than the OR group (18.2 vs. 14.3, P = 0.001), suggesting that magnified visualization may compensate for the absence of palpation and enable adequate mesocolic excision. Second, despite a significantly lower adjuvant chemotherapy rate in the LR group (37.3% vs. 62.7%, P = 0.003), overall and disease free survival were equivalent, which may reflect reduced surgical trauma and better preservation of physiological reserve. Third, the T4b subgroup analysis, although underpowered, showed a trend toward lower recurrence in the LR arm, but these findings require cautious interpretation. The authors appropriately emphasize that LR should be reserved for high volume centres with experienced surgeons, and the exclusion of converted cases underscores the need for rigorous preoperative selection. Overall, this study supports LR as a viable option for selected T4 CC patients. Future multicentre research, possibly incorporating robotic platforms, will be essential to confirm these promising results and refine patient selection criteria.