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[Aging law on anti-hypertensive effect of scrapping therapy on primary hypertension].

OBJECTIVE
To observe the aging law on anti-hypertensive effect of scrapping therapy on primary hypertension so as to provide the reference evidence for the best treatment frequency of scrapping therapy.


METHODS
Eighty-nine patients of primary hypertension complied with inclusive criteria were treated with scrapping therapy according to syndrome differentiation. The stimulated sites included the courses of the governor vessel and the bladder meridian on the neck and back region, the line from Quchi (LI 11) to Shousanli (LI 10) and that from Zusanli (ST 36) to Fenglong (ST 40). The strong stimulation for reducing attempt was applied to the case of excessi syndrome, determined by subcutaneous capillary rupture and subcutaneous blood stasis. The mild stimulation for reinforcing attempt was applied to the case of deficiency syndrome, determined by subcutaneous capillary hyperemia and skin flush. Each site was scrapped for 10 times, about 5 cm in width, for 15 min. One scrapping treatment was required. The blood pressure was taken as the observation index separately, named 2:00 pm, 2:30 pm, 3:00 pm, 3:30 pm, 4:00 pm, 5:00 pm, 6:00 pm and 8:00 pm one day before scrapping, the time before scrapping in the afternoon on the day of treatment, the moment (2:00 pm), 2:30 pm, 3:00 pm; 3:30 pm, 4:00 pm, 5:00 pm, 6:00 pm and 8:00 pm after scrapping, in 24 h and 48 h after scrapping.


RESULTS
(1) After one scrapping, the blood pressure was reduced to be (137. 51±10. 24)/(81. 06±10. 56) mmHg half a hour after scrapping from (149. 00±10. 19)/(85. 30±10. 96) mmHg (1mmHg~0. 133 kPa) before scrapping (P<0. 01). (2) The differences were significant in blood pressure at each time point after scrapping as compared with that before scrapping (all P<0. 01). (3) Through nonlinear regression analysis, the systolic blood pressure after scrapping was increased up to 140 mmHg in 47. 2 h after scrapping.


CONCLUSION
Scrapping therapy achieves the apparent immediate anti-hypertensive effect on primary hypertension. It is suitable to apply scrapping treatment once every other day.