Lutfiye Pirbudak Cocelli1, Mete Gurol Ugur2, Hakan Karadasli1. 1. Department of Anesthesiology, Gaziantep University, Faculty of Medicine, Gaziantep, Turkey. 2. Department of Obstetrics and Gynaecology, Gaziantep University, Faculty of Medicine, Gaziantep, Turkey.
Abstract
BACKGROUND: Numerous transient effects of anesthesia on postoperative immune status have been documented in the literature. OBJECTIVE: This study was performed to test the hypothesis that the effects on neutrophil and T-cell populations differ with use of low-flow sevoflurane- and desflurane-induced anesthesiaduring abdominal surgery. METHODS:Fifty adult patients (American Society of Anesthesiologists physical status I or II) aged 20 to 60 years were recruited for the study. Patients were randomly assigned to one of two study groups. Anesthesia was induced using fentanyl, propofol, and vecuronium. After intubation, patients in group 1 received sevoflurane, oxygen, and nitrous oxide at a flow rate of 6 L/min, and those in group 2 received desflurane, oxygen, and nitrous oxide at a flow rate of 6 L/min. Ten minutes after induction of anesthesia, the flow rate was decreased to 1 L/min in both groups. Total leukocyte, lymphocyte, and neutrophil counts, percentage of T helper lymphocytes (CD4), cytotoxic T lymphocytes (CD8), natural killer lymphocytes, and active T lymphocyte, CD4/CD8 ratio, and plasma cortisol values were assessed before and at 2 and 24 hours after induction of anesthesia. RESULTS: In the desflurane group, at 2 hours after induction of anesthesia, a significant decrease was observed in the lymphocyte count, percentage of CD4 cells, and CD4/CD8 ratio, and a significant increase was noted in the neutrophil count and percentage of CD8 cells (P < 0.05). At 24 hours after induction of anesthesia, a significant increase was observed in the leukocyte and neutrophil counts, percentage of CD4 cells, and CD4/CD8 ratio (P < 0.05). There was no change in the other parameters studied. In the sevoflurane group, a significant decrease was observed in the lymphocyte count and percentage of natural killer cells. In addition, a significant increase was noted in the leukocyte and neutrophil counts at 24 hours after induction of anesthesia (P < 0.01). The increase in the neutrophil count in the desflurane group compared with that in the sevoflurane group was statistically significant (P < 0.05). CONCLUSIONS: With use of the low-flow anesthesia technique, compared with desflurane, sevoflurane exerts minimal effects on neutrophil and T-cell populations, which supports our hypothesis.
RCT Entities:
BACKGROUND: Numerous transient effects of anesthesia on postoperative immune status have been documented in the literature. OBJECTIVE: This study was performed to test the hypothesis that the effects on neutrophil and T-cell populations differ with use of low-flow sevoflurane- and desflurane-induced anesthesia during abdominal surgery. METHODS: Fifty adult patients (American Society of Anesthesiologists physical status I or II) aged 20 to 60 years were recruited for the study. Patients were randomly assigned to one of two study groups. Anesthesia was induced using fentanyl, propofol, and vecuronium. After intubation, patients in group 1 received sevoflurane, oxygen, and nitrous oxide at a flow rate of 6 L/min, and those in group 2 received desflurane, oxygen, and nitrous oxide at a flow rate of 6 L/min. Ten minutes after induction of anesthesia, the flow rate was decreased to 1 L/min in both groups. Total leukocyte, lymphocyte, and neutrophil counts, percentage of T helper lymphocytes (CD4), cytotoxic T lymphocytes (CD8), natural killer lymphocytes, and active T lymphocyte, CD4/CD8 ratio, and plasma cortisol values were assessed before and at 2 and 24 hours after induction of anesthesia. RESULTS: In the desflurane group, at 2 hours after induction of anesthesia, a significant decrease was observed in the lymphocyte count, percentage of CD4 cells, and CD4/CD8 ratio, and a significant increase was noted in the neutrophil count and percentage of CD8 cells (P < 0.05). At 24 hours after induction of anesthesia, a significant increase was observed in the leukocyte and neutrophil counts, percentage of CD4 cells, and CD4/CD8 ratio (P < 0.05). There was no change in the other parameters studied. In the sevoflurane group, a significant decrease was observed in the lymphocyte count and percentage of natural killer cells. In addition, a significant increase was noted in the leukocyte and neutrophil counts at 24 hours after induction of anesthesia (P < 0.01). The increase in the neutrophil count in the desflurane group compared with that in the sevoflurane group was statistically significant (P < 0.05). CONCLUSIONS: With use of the low-flow anesthesia technique, compared with desflurane, sevoflurane exerts minimal effects on neutrophil and T-cell populations, which supports our hypothesis.
Entities:
Keywords:
T cell; desflurane; low-flow anesthetic; neutrophil; sevoflurane
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