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19.05.2017 | Ausgabe 12/2017

Surgical Endoscopy 12/2017

Prediction of surgical outcomes of laparoscopic liver resections for hepatocellular carcinoma by defining surgical difficulty

Surgical Endoscopy > Ausgabe 12/2017
Mohan Periyasamy, Jai Young Cho, Soyeon Ahn, Ho-Seong Han, Yoo-Seok Yoon, YoungRok Choi, Jae Seong Jang, Seong Uk Kwon, Sungho Kim, Jang Kyu Choi, Hanisah Guro
Wichtige Hinweise
Presented at the SAGES 2017 Annual Meeting, March 22–25, 2017, Houston, Texas.



Several classification systems for assessing the surgical difficulty of laparoscopic liver resection (LLR) have been proposed. We evaluated three current classification systems, including traditional Major/Minor Classification, Complexity Classification, and the Difficulty Scoring System for predicting the surgical outcomes after LLR.


We reviewed the clinical data of 301 patients who underwent LLR for hepatocellular carcinoma between March 1, 2004 and June 30, 2015. We compared the intraoperative, pathologic, and postoperative outcomes according to the three classifications. We also compared the prognostic value of the three classifications using receiver operating characteristic (ROC) curves.


The Major/Minor Classification, Complexity Classification, and the Difficulty Scoring System efficiently differentiated surgical difficulty in terms of blood loss (P = 0.001, P = 0.009, and P < 0.001, respectively) and operation time (all P < 0.001). Regarding intraoperative outcomes, the Difficulty Scoring System and Complexity Classification successfully differentiated the transfusion rate (P = 0.001 and P < 0.001, respectively). However, only the Complexity Classification adequately predicted severe postoperative complications (P = 0.032), the severity of complications (P < 0.001), and the length of hospital stay (P = 0.005). In ROC curve analysis, the Complexity Classification (area under the curve [AUC] = 0.611) outperformed the Major/Minor Classification (AUC = 0.544) and the Difficulty Scoring System (AUC = 0.530) for predicting severe postoperative complications. None of the classification systems predicted recurrence or patient survival.


The Complexity Classification was superior to the other methods for assessing surgical difficulty and predicting complications after LLR for hepatocellular carcinoma.

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