Systemic stress responses after laparoendoscopic single-site hepatectomy: a perspective controlled study
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Updated: May 25, 2026

Laparoscopic Anterior Right Hepatectomy: A Single-Center Experience
Published on: December 4, 2023
Mingfang Qin1, Fusheng Zou, Mingwei Zheng
1Department of Surgery, Tianjin Nankai Hospital, Tianjin, China.
Background/Aims:
This study aimed to evaluate the technical feasibility of laparoendoscopic single-site hepatectomy (LESH) and compared stress responses with laparoscopic hepatectomy (LH) through a perspective controlled trial.
Methodology:
Thirty small female family pigs as animal models were divided into LESH and LH groups randomly. The data about operations including operating time, blood loss and complication rates were recorded. The stress indicators, including adrenaline, serum cortisol, interleukin-1, interleukin-6 and white blood cell count, were measured at baseline and 1, 24 and 48 hours postoperatively.
Results:
In LESH group, 1 case was converted to LH for uncontrolled blooding. The other 29 cases underwent respective operations successfully. Postoperative recovery was without complications. Mean operative time of LESH group and LH group was 94.7±31.3 vs. 76.9±24.3min (p=0.0929). The blood loss of two groups was 72.5±26.4 vs. 66.3±21.2mL and there was no statistical difference. In both groups stress indicators showed a rising trend after operations and had no significant differences at the same time point.
Conclusions:
LESH is a safe, feasible and minimally invasive approach and has no different impact on stress responses compared to LH. It may be a reasonable alternative to apply in clinical practice by experienced laparoscopic physicians.

