Conclusion LMWH and UH are both efficient in treating non-massive acute PTE, but LMWH is safer and lower costed, so LMWH is a better therapeutic agent.

• 结论低分子肝素和普通均为有效的抗凝药物，综合副作用和治疗费考虑，低分子肝素更适合于临床。