The Effects of Low Flow and Normal Flow Desflurane Anesthesia

Aging is a physiological process. In the elderly, loss of functional reserve in all organ system, regression in anabolic processes and increase in catabolic processes are observed s (1). The number of geriatric patients is also increasing in our country. Technological developments in anesthesia and surgery technics show that we will provide medical services to more elderly patients over time(2). Cystatin C is excreted only by the kidney (7, 8). Serum cystatin C level is not affected by body muscle mass, age and gender. The half-life is short. Because of all these features, it is thought to be more sensitive than creatinine in evaluating kidney functions (8,9). In this study, it was aimed to compare the effects of low flow and normal flow desflurane anesthesia applied in geriatric patients on postoperative liver and kidney functions and serum cystatin C levels.