Sevoflurane consumption during low flow anesthesia with fresh gas flow 0.5 or 1 liter/min for abdominal surgery in elderly patients
Overview
Abstract:
Object: Evaluating
the consumption of sevofluran during low flow anesthesia with ecoflow at fresh
gas flow 0.5 or 1 L/min for abdominal surgery in elderly patients.
Materials and methods: 74 ASA grade 1, 2 and 3 patients, aged ≥ 60 years
undergoing abdominal surgery under general anesthesia with an endotracheal tube
were included. After induction the volatile anesthetic (SEV) was opened at 3% and the flow of 6 L/min until entropy < 60 then reduced to 0,5
L/min for group N0.5 and 1 L/min for group 1 L/min. Ventilation: VCV, Vt = 8
ml/kg, RR = 10, PEEP = 5 cmH2O. Consumption
of sevofluran, MAC-Sevofluran, entropy, SPI, TOF, heart rate, MAP were recorded.
Results and conclusions: Mean sevoflurane
consumption was significantly lower in Group N0.5 compared to Group N1 (0.14 ± 0.03 ml/min, 0.19
± 0.05 ml/min; p-value < 0.001). So the use of low flow 0.5 L/min was associated with
decrease in the cost of anaesthetic and environmental pollution.
Pages (from-to) | 42-46 |
Journal | Vietnam Medical Journal |
Volume | 448 |
Issue number | 1 |
Publication status | Published - Mar-2020 |
ISBN | 1859-1868 |