低剂量肝素的临床应用,仍有争论,近来作者对其临床价值进一步作了评价。外科患者的使用:有关文献报道,1971～1975年间,有2000多例外科患者接受了低剂量肝素治疗,经静脉造影及其它方法检查证实,这部分患者明显降低了术后深静脉血栓发病率。低剂量肝素能否预防术后肺栓塞?有人对4621例外科患者进行了研究,结果证实,对照组与治疗组患者的肺栓塞比值为5:1(P<0.0005),故在外科患者中的应 The clinical use of low-dose heparin remains controversial and recent authors have further evaluated its clinical value. The use of surgical patients: the literature reports, from 1971 to 1975, more than 2000 cases of surgical patients received low-dose heparin therapy, confirmed by venography and other methods, this part of patients significantly reduced the incidence of postoperative deep venous thrombosis. Can low-dose heparin prevent postoperative pulmonary embolism? 4621 cases of surgical patients were studied, the results confirmed that the control group and the treatment group patients with pulmonary embolism ratio of 5: 1 (P <0.0005), so in surgical patients should