Clinical efficacy of Danggui Sini Decoction for treatment of lower limb arteriosclerosis obliterans: A randomized controlled trial

Figure 1 Typical case of interventional procedure. A: Angiography defining the lesion extent; B: Balloon angioplasty after the guidewire crossed the occluded segment; C: Post-dilation angiography revealing flow-limiting dissection; D: Bare-metal stent implantation to improve blood flow.

Figure 2 Kaplan-Meier curves comparing the primary patency rates between the experimental group (Danggui Sini Decoction plus intervention, blue curve) and the control group (intervention alone, red curve) over the 6-month (180-day) follow-up period. The hazard ratio for loss of primary patency, derived from a Cox proportional hazards model with the control group as the reference, was 0.371 (95%CI: 0.095-0.922; P = 0.044). HR: Hazard ratio.