Related Experiment Video
Updated: Aug 13, 2026
Modified Laparoscopic Anatomic Hepatectomy: Two-Surgeon Technique Combined with the Simple Extracorporeal Pringle Maneuver
Published on: June 16, 2023
Simplified hepatic resections with the use of a Chang's needle
Yu-Chung Chang1, Naofumi Nagasue, Chu-San Chen
1Department of Surgery, College of Medicine, National Cheng Kung University, Tainan, Taiwan. changyc@mail.ncku.edu.tw
Objective:
To demonstrate the use of Chang's needle for hepatic resections.
Summary Background Data:
Specialized instruments, fine surgical skills, and good control of hepatic inflow and backflow are essential for hepatic resections. This needle was specifically designed to simplify these requirements.
Methods:
Whole-thickness interlocking sutures of the liver can first be made along the designed resection line with a Chang's needle; then parenchyma transection can follow without inflow or backflow control. This was consecutively performed on 69 patients with primary (41), metastatic (10), and benign (18) diseases since 1997.
Results:
Blood loss during parenchyma transection was reduced in 11 right lobectomies (652 mL), 1 3-segmentectomy (300 mL), 14 bisegmentectomies (252 mL), 7 segmentectomies (104 mL), 12 subsegmentectomies (19 mL), 5 wedge resections (7 mL), 18 left lateral segmentectomies (110 mL), and 1 hepatorrhaphy (minimal). There was no procedure-related mortality. A mild bile leakage occurred in 1 case (1.5%) but healed spontaneously.
Conclusions:
The preliminary results demonstrate that this maneuver is a simple, easy, and safe method for performing hepatic resections.
