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