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Updated: Jul 29, 2025
Application of the En Bloc Concept Combined with Anatomic Resection in Laparoscopic Hepatectomy
Published on: March 10, 2023
Surgical and Oncological Outcomes of Wedge Resection Versus Segment 4b + 5 Resection for T2 and T3 Gallbladder
Satoshi Matsui1, Toshiro Tanioka2, Kei Nakajima2
1Department of Digestive Surgery, Tsuchiura Kyodo General Hospital, 4-1-1 Otuno, Tsuchiura-shi, Ibaraki, Japan. smatmsrg@tmd.ac.jp.
Background:
Liver resection is the standard operative procedure for patients with T2 and T3 gallbladder cancers (GBC). However, the optimal extent of hepatectomy remains unclear.
Methods:
We conducted a systematic literature search and meta-analysis to assess the safety and long-term outcomes of wedge resection (WR) vs. segment 4b + 5 resection (SR) in patients with T2 and T3 GBC. We reviewed surgical outcomes (i.e., postoperative complications and bile leak) and oncological outcomes (i.e., liver metastasis, disease-free survival (DFS), and overall survival (OS)).
Results:
The initial search yielded 1178 records. Seven studies reported assessments of the above-mentioned outcomes in 1795 patients. WR had significantly fewer postoperative complications than SR, with an odds ratio of 0.40 (95% confidence interval, 0.26 - 0.60; p < 0.001), although there were no significant differences in bile leak between WR and SR. There were no significant differences in oncological outcomes such as liver metastases, 5-year DFS, and OS.
Conclusions:
For patients with both T2 and T3 GBC, WR was superior to SR in terms of surgical outcome and comparable to SR in terms of oncological outcomes. WR that achieves margin-negative resection may be a suitable procedure for patients with both T2 and T3 GBC.
