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Comparative Study
. 2012 Mar;13(3):186-91.
doi: 10.1631/jzus.B1100096.

Saline conducted electric coagulation (SCEC): original experience in experimental hepatectomy

Guo-Ping Ding  1 , Li-Ping Cao, Da-Ren Liu, Ri-Sheng Que
Affiliations
Comparative Study

Saline conducted electric coagulation (SCEC): original experience in experimental hepatectomy

Guo-Ping Ding et al. J Zhejiang Univ Sci B. 2012 Mar.

Abstract

Objective: To evaluate the feasibility and superiority of a new coagulating and hemostatic method named "saline conducted electric coagulation (SCEC)".

Methods: The Peng's multifunction operative dissector (PMOD) was modified to enable saline to effuse persistently out of its nib at a constant speed. In a group of six New Zealand rabbits, two hepatic lobes of each rabbits were resected respectively by SCEC and conventional electric coagulation (EC). The features of SCEC were recorded by photo and compared with conventional EC. After 7 d, the coagulating depth was measured in each residual hepatic lobe. Hepatic tissue was dyed by hematoxylin and eosin (HE) and studied under a microscope.

Results: The coagulating depth increased with the continuation of SCEC time. Hepatectomies were performed successfully, no rabbit died in the perioperative period. The incisal surface of SCEC was gray-white with no red bleeding point. There was a thick solidified layer at the margin and a thin red-white intermittent layer between the solidified layer and normal hepatic tissue at the vertical section of SCEC. The mean coagulating depth of SCEC was 1.8 cm vs. 0.3 cm of conventional EC. Pathological examination showed a mild inflammatory reaction by SCEC.

Conclusions: SCEC is a feasible and safe method for surgical hemostasis. As a new technique for liver resection, SCEC shows better coagulating effect and milder inflammatory reaction than conventional EC. Our study shows bloodless liver resection can also be performed by SCEC, especially for liver malignant tumor.

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Figures

Fig. 1
Fig. 1
Self-made SCEC scalpel according to patent specification The electrode lies in the centre of the scalpel. Saline is infused into the end of electrode and effused out of the tip
Fig. 2
Fig. 2
Coagulating effect by conventional EC (a) and SCEC (3 s (b), 5 s (c), 10 s (d), and 30 s (e))
Fig. 3
Fig. 3
Vertical section of conventional EC (a) and SCEC (3 s (b), 5 s (c), 10 s (d), 30 s (e))
Fig. 4
Fig. 4
Vertical sections of hepatic tissues by SCEC (a) and conventional EC (b)
Fig. 5
Fig. 5
Vertical sections of residual hepatic tissues by SCEC (a) and conventional EC (b) after 7 d
Fig. 6
Fig. 6
HE-stained transition zones 7 d after conventional EC (a) and SCEC (b)
See this image and copyright information in PMC

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