Okada Tsuyoshi, Kawahito Shinji, Mita Naoji, Matsuhisa Munehide, Kitahata Hiroshi, Shimada Mitsuo, Oshita Shuzo
Department of Anesthesia, Takamatsu Red Cross Hospital.
J Med Invest. 2013;60(3-4):205-12. doi: 10.2152/jmi.60.205.
The purpose of this study was to evaluate the usefulness of the closed-loop system (STG-22; Nikkiso, Tokyo, Japan), a type of artificial endocrine pancreas for the continuous monitoring and control of intraoperative blood glucose in patients undergoing liver transplantation.
Sixteen patients undergoing living-donor liver transplantation were enrolled in this study. Glucose levels were controlled with either a manual injection of insulin based on a commonly used sliding scale (manual insulin group, n=8) or a programmed infusion of insulin determined by the control algorithm of the artificial endocrine pancreas (programmed insulin group, n=8). The target glucose level range was set at 80-150 mg/dl.
The mean and SD of blood glucose concentration during surgery (Glu-Ave and Glu-SD, respectively) for the programmed insulin group were lower than for the manual insulin group. The coefficient of variability (Glu-CV=Glu-SD×100 /Glu-Ave) for the programmed insulin group was also lower than for the manual insulin group (20.1±4.9% vs. 26.9±6.1%; mean±SD). No hypoglycemia was detected in either group.
The STG-22 closed-loop system is effective for maintaining strict blood glucose control during liver transplantation with minimal variability in blood glucose concentration.
