针刺合谷对循经远端穴位经皮氧分压和二氧化碳分压的影响

Influence of Acupuncture at Hegu(LI 4) on Transcutanous Oxygen Partial Pressure and Transcutanous Carbon Dioxide Partial Pressure of Distal Acupoints

目的观察针刺合谷穴和旁开非穴位对同一条经络上穴位和非穴位的经皮氧分压(tcPaO2)和二氧化碳分压(tc-PaCO2)的影响,为循经感传现象提供依据。方法采用激光多普勒微循环仪,分别对20例健康志愿者进行3次检测:针刺右侧非穴位,观察同侧穴位(非合谷-曲池组);针刺对侧穴位,观察同侧穴位(合谷-曲池组);针刺右侧穴位,观察同侧非穴位(合谷-非曲池组)。记录并比较每组针刺前及针刺后1min、5min、10min的tcPaO2、tcPaCO2值的变化。结果针刺前及针刺后1min各组tcPaO2、tcPaCO2值差异均无统计学意义(P>0.05)。针刺后5min,合谷-曲池组、合谷-非曲池组tcPaO2、tcPa-CO2值均较本组治疗前及同时间点非合谷-曲池组显著升高(P<0.01或P<0.05)。针刺后10min,合谷-曲池组tcPaO2较本组针刺前及同时间点非合谷-曲池组升高(P<0.01);合谷-非曲池组tcPaO2值下降并低于针刺5min(P<0.05),但仍高于本组针刺前及同时间点非合谷-曲池组(P<0.01);合谷-曲池组tcPaCO2升高并与本组针刺前、针刺后5min及同时间点合谷-非曲池组比较差异均有统计学意义(P<0.05或P<0.01);合谷-非曲池组tcPaCO2值则较针刺后5min升高(P<0.01)。非合谷-曲池组针刺前后比较差异均无统计学意义(P>0.05)。结论针刺合谷穴可持续升高远端穴位处和非穴位处的tc-PaO2、tcPaCO2,而针刺非穴位则对远端穴位处和非穴位处的tcPaO2、tcPaCO2无影响,提示了循经感传现象。

Objective To observe the effect of acupuncture at Hehu（LI 4） and lateral non-acupoint on the transcutaneous oxygen partial pressure（tcPaO2） and transcutaneous carbon dioxide partial pressure（tcPaCO2） of distal acupoint Quchi（LI 11） in order to provide evidence for the propagated sensation along channel（PSC）.Methods The laser Doppler flowmeter was adopted to measure the level of tcPaO2 and tcPaCO2 of 20 healthy volunteers for 3 times.First,acupuncture at the right side non-acupoint for observing the lpsilateral acupoint（non-Hehu-Quchi group）;Second,acupuncture at the contralateral acupoint for observing the lpsilateral acupoint（Hehu-Quchi group）;Third,acupuncture at the right side acupoint for observing the lpsilateral non-acupoint（Hehu-non-Quchi group）.The changes of tcPaO2 and tcPaCO2 before treatment and 1 minute,5 minutes,and 10 minutes after acupuncture in each group were recorded and compared.Results Before acupuncture and 1 minute after acupuncture,the values of tcPaO2 and tcPaCO2 of all groups were without statistical difference（P0.05）.Five minutes after acupuncture,the values of tcPaO2 and tcPaCO2 of Hehu-Quchi group and Hehu-non-Quchi group were significantly higher than before acupuncture and that of non-Hehu-Quchi group at the same time point（P0.01 or P0.05）. Ten minutes after acupuncture,the value of tcPaO2 of Hehu-Quchi group was significantly higher than before acupuncture and that of non-Hehu-Quchi group at the same time point（P0.01）.The value of tcPaO2 of Hehu-non-Quchi group was decreasing and lower than five minutes after acupuncture（P0.05）,but it was still higher than before acupuncture and that of non-Hehu-Quchi group（P0.01）.Compared with before acupuncture,five minutes after acupuncture,and the Hehu-non-Quchi group at the same time point,the value of tcPaCO2 of Hehu-Quchi group was higher,and the difference was statistically significant（P0.05 or P0.01）.The value of tcPaCO2 of Hehu-non-Quchi group was higher than that of five minutes after acupuncture（P0.01）.There was no statistical difference before and after acupuncture in the non-Hehu-Quchi group（P0.05）.Conclusion Acupuncture at Hehu（LI 4） is able to continuously increase the tcPaO2 and tcPaCO2 of distal acupoint and lateral non-acupoint,while acupuncture at non-acupoint is not able to influence the tcPaO2 and tcPaCO2 of distal acupoint and non-acupoint,which indicates the propagated sensation along channel.