Continuous glucose monitoring system--useful but expensive tool in management of diabetes.

Until recently, self monitoring of blood glucose (SMBG) was the only tool used for monitoring blood glucose levels. The limitation of SMBG is that it cannot continuously monitor blood glucose levels. In this paper, we present our initial experience with the continuous glucose monitoring system (CGMS) in three different clinical situations. With reduction in cost and further refinement in technology, CGMS could become a valuable tool for clinical practice and research studies in diabetes.