An international multicenter study validated the Iwate difficulty scoring system (DSS) for laparoscopic liver resections (LLR) across both its four difficulty levels and 12-point difficulty index. Analyzing 14,759 patients, researchers found that intraoperative and postoperative outcomes—such as operation time, blood loss, and complications—worsened significantly with higher difficulty levels (p < 0.001). These findings, derived from various perioperative measures, confirm the correlations between the Iwate DSS and LLR difficulty.
Journal Article by Peng Y, Liu F (…) Goh BKP et 72 al. in Eur J Surg Oncol
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