Page 24 - 中国全科医学2022-17
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                 14                                                14
                 12           V eupnea =11.8                       12          V eupnea =11.8
                分钟通气量(L/min)  8 6 4  V tolerable =5.6  V max =16.4  分钟通气量(L/min)  8 6 4  V tolerable =5.6  LG=-0.75  V max =16.4
                                                                   10
                 10
                                                                                   6.2

                                                                               V arousal =5.1
                              V arousal =5.1
                              active V 0 =3.3
                  2
                             passive V 0 =0                         2          active V 0 =3.3
                                                                              passive V 0 =0
                  0        5      10     15     20     25           0        5      10     15     20     25
                A                                                 B
                               通气驱动力(L/min)                                      通气驱动力(L/min)
                 14                                                14
                 12         V eupnea =11.8  LG=-0.75  ArThr=16.8   12          V eupnea =11.8  LG=-0.75  ArThr=16.8
                分钟通气量(L/min)  8 6 4  V tolerable =5.6  V max =16.4  分钟通气量(L/min)  8 6 4  V tolerable =5.6  V max =16.4
                 10
                                                                   10
                                 6.2
                                                                                   6.2

                                                                               V arousal =5.1
                             V arousal =5.1
                             active V 0 =3.3
                  2
                            passive V 0 =0                          2          active V 0 =3.3  UAG=0.66
                                                                              passive V 0 =0
                C          5      10     15     20     25           0        5      10     15     20     25
                  0                                               D
                               通气驱动力(L/min)                                      通气驱动力(L/min)
              注:A 以分钟通气量为纵坐标,通气驱动力为横坐标,绘制坐标图,将测试获得的通气参数与坐标一一对应;B 为环路增益(LG)测量和绘图;
           C 为低觉醒阈值(ArThr)测量和绘图;D 为上气道增益(UAG)测量和绘图
                                              图 1 LG、ArThr 和 UAG 的测量和绘图过程
                             Figure 1 Measurement and plotting process of loop gain,arousal threshold,and upper-airway gain

             14                                14                               14

             12                                12                               12
                             V eupnea =11.8    10              V eupnea =11.8   10              V eupnea =11.8
            分钟通气量(L/min)  8 6  V tolerable =5.6  a  分钟通气量(L/min)  8 6  V tolerable =5.6  分钟通气量(L/min)  8 6  V tolerable =5.6
             10




                                                                                                 V arousal =5.1
                              V arousal =5.1
                                                               V arousal =5.1
              4
                              active V 0 =3.3  b  4            active V 0 =3.3   4               active V 0 =3.3
              2                          c      2                                2
                            passive V 0 =0                    passive V 0 =0                   passive V 0 =0
             A  0        5       10      15   B  0        5       10      15   C  0        5       10       15
                      通气驱动力(L/min)                     通气驱动力(L/min)                     通气驱动力(L/min)

             14       V eupnea =11.8           14      V eupnea =11.8  ArThr=16.8  14   V eupnea =11.8
                                                                                12
             12
                                               12
            分钟通气量(L/min)  10 8 6 4  V tolerable =5.6  LG=-0.75  V max =16.4  分钟通气量(L/min)  10 8 6 4  V tolerable =5.6  LG=-0.75  V max =16.4  分钟通气量(L/min)  10 8 6 4  V tolerable =5.6  LG=-0.75  V max =16.4
                                                                                                      ArThr=16.8
                      V arousal =5.1
                                                        V arousal =5.1
                                                                                         V arousal =5.1
                       active V 0 =3.3
              2
                                                                                        passive V 0 =0
                                                      passive V 0 =0
                     passive V 0 =0             2       active V 0 =3.3          2       active V 0 =3.3  UAG=0.66
             D  0    5    10   15    20   25  E  0     5    10   15   20    25  F  0    5    10   15    20   25
                     通气驱动力(L/min)                      通气驱动力(L/min)                     通气驱动力(L/min)
                                                  图 2 LG 相关参数调整示意图
                                            Figure 2 Regulating loop gain and associated factors
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