Use of 1.32-μm and 1.06-μm wavelength lasers for vascular cutting in a porcine model of liver and stomach bleeding

• Published in: Oncology and translational medicine Vol. 3; no. 4; pp. 160 - 164
• Main Authors: Han, Lu, Gao, Wenyuan, Shen, Yangyang, Pang, Kai, Jiang, Zhanjun, Gao, Yonghui, Xu, Peng, Li, Sheng
• Format: Journal Article
• Language: English
• Published: School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan 250062, China 01.08.2017; Department of Hepatobiliary Surgery, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University, Jinan 250117, China%Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University, Jinan 250117, China%College of Medicine, Binzhou Medical University, Yantai 264003, China%Department of Anesthesiology, Shandong Academy of Medical Sciences, Shandong Cancer Hospital Affiliated to Shandong University, Jinan 250117, China%Optoelectronics Technology Co., Ltd. Shandong Ruihua TONGHUI, Jinan 250022, China%Shandong Academy of Medical Sciences, Jinan 250062, China
• Subjects: cutting; hemostasis; laser; liver; stomach; cutting; stomach; hemostasis; laser; liver
• ISSN: 2095-9621; 2995-5858
• DOI: 10.1007/s10330-016-0212-2

Objective The aim of this study was to analyze and evaluate 1.32-μm and 1.06-μm neodymium-doped yttrium aluminum garnet (Nd:YAG) lasers for use in liver and gastroepiploic vessel vaporization and coagulation.Methods The effects of 1.32-μm and 1.06-μm Nd:YAG lasers were compared for gastroepiploic vessel hemostasis in porcine liver.Results The results were observed and measured under the same parameters and dose conditions.The 1.32-μm laser showed greater vaporization width and depth than the 1.06-μm laser. Both lasers controlled active bleeding. The coagulation band with the 1.32-μm laser was thinner than with the 1.06-μm laser, at nearly 3 mm. After cutting of 1- and 2-mm porcine vessels, no grossly visible bleeding was apparent. Intravascular thrombus was visible under the microscope. The length of vessel thrombosis in the experimental group was 2 mm and the diameter was 2 mm; the control group exhibited thrombi as 2.3-4.9 mm in length. Thrombosis completely blocked the blood vessels.Conclusion The 1.32-μm laser had greater vaporization capability than the 1.06-μm laser and achieved hemostasis requirements for vessels less than 2 mm in diameter.