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第42卷第7期                           南京医科大学学报(自然科学版)
                  2022年7月                   Journal of Nanjing Medical University(Natural Sciences)     ·973 ·


               ·基础研究·

                不同七氟烷麻醉浓度对大鼠血中游离六氟异丙醇浓度的影响



                林芷萱 ,黄      三 ,黄 艳 ,杨小霖        2*
                                       3
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                      1
                川北医学院麻醉学系,四川           南充   637000;川北医学院附属医院麻醉科,四川             南充    637000;川北医学院第二临床学院,
                1                                  2                                       3
                四川 南充 637000


               [摘   要] 目的:通过对SD大鼠吸入不同浓度七氟烷麻醉不同时间后血中游离六氟异丙醇(hexafluoro⁃isopropanol,HFIP)浓
                度的测定,分析血中游离HFIP的生成规律及其与七氟烷麻醉浓度的关系。方法:选择114只健康成年SD大鼠,其中6只用于
                测定HFIP样品的血/气分配系数,其余108只随机分为3组,每组36只,分别接受1.16%(S1组)、2.32%(S2组)和3.48%(S3组)浓
                度的七氟烷麻醉。每组内再分为6个麻醉时段,分别麻醉0.5、1.0、1.5、2.0、3.0、4.0 h,每个时段用鼠6只。麻醉结束后立即取腹
                主动脉血 5~10 mL。首先采用顶空二次平衡法测得大鼠 HFIP 的血/气分配系数,再使用一次平衡法测得大鼠血中实际游离
                HFIP 浓度。同时使用顶空二次平衡法测定大鼠血中七氟烷浓度及血/气分配系数。分析组内血中游离 HFIP 浓度与麻醉时
                间的关系,及组间七氟烷麻醉浓度与血中游离 HFIP 浓度的关系。结果:3 组不同时点 SD 大鼠血中均能测出游离 HFIP,且在
                麻醉1.0 h时均达峰值,而后随着麻醉时间的延长,其浓度逐渐降低。与S1组相比,S2组各对应时点血中游离HFIP浓度均增高
               (P < 0.05);除4.0 h时点外,S3组各对应时点血中游离HFIP浓度与S1组差异无统计学意义(P > 0.05)。与S2组相比,S3组各对
                应时点血中游离HFIP浓度均显著降低(P < 0.05)。结论:各组大鼠血中游离HFIP浓度均随七氟烷麻醉时间的延长呈先增高
                后降低的趋势。当七氟烷麻醉浓度增加到3.48%时,血中各时点游离HFIP浓度反而降低,七氟烷代谢受到抑制。
               [关键词] 七氟烷;六氟异丙醇;吸入麻醉
               [中图分类号] R614.2                    [文献标志码] A                      [文章编号] 1007⁃4368(2022)07⁃973⁃06
                doi:10.7655/NYDXBNS20220709



                Effects of sevoflurane inhalation anesthesia with different concentrations on free hexafluoro⁃
                isopropanol concentrations in rats’blood
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                LIN Zhixuan ,HUANG San ,HUANG Yan ,YANG Xiaolin  2*
                Department of Anesthesiology,North Sichuan Medical College,Nanchong 637000;Department of Anesthesia,
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                Affiliated Hospital of North Sichuan Medical College,Nanchong 637000;Department of the Second School of
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                Clinical Medicine,North Sichuan Medical College,Nanchong 637000,China
               [Abstract] Objective:Though determining the free hexafluoro⁃isopropanol(HFIP)concentration in blood of SD rats anesthetized
                with different sevoflurane concentrations for different time,the change of free HFIP concentration in rats’blood was observed,and the
                relationship between inhaled sevoflurane concentration and free HFIP concentration in blood was also analyzed among the three
                groups. Methods:One hundred and fourteen healthy adult SD rats were selected,in which 6 rats were used to determine the blood/gas
                partition coefficient(B/G)of HFIP,and the rest 108 rats were randomly divided into three groups(S1,S2,and S3 )with 36 rats in each
                group,and anesthetized by sevoflurane with different concentrations(1.16%,2.32%,and 3.48%),respectively. Every 6 rats in each
                group were accepted anesthesia by inhaled sevoflurane with a preset concentration for 0.5,1.0,1.5,2.0,3.0,and 4.0 h,respectively.
                First,the blood/gas partition coefficient of HFIP samples was measured by the two⁃stage headspace equilibration,and then the actual
                free HFIP concentration in the blood of anesthetized rats was measured by the one⁃stage headspace equilibration. At the same time,the
                sevoflurane concentration and blood/gas partition coefficient in the blood of anesthetized rats were determined by the two ⁃ stage
                headspace equilibrium method. Both the curves of free HFIP concentration in blood and inhaled sevoflurane concentration vs.



               [基金项目] 南充市市校合作项目(18SXHZ0472,19SXHZ0151)
                ∗
                通信作者(Corresponding author),E⁃mail:yang_xl_yang@126.com
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