All the patients were diagnosed by clinical examination,B mode ultrasound,and/or venography,treated by low molecular weight heparin (LMWH),low molecular weight Dextran and/or anticoagulants.

• 采用临床查体,B超检查及深静脉造影确定诊断,应用低分子量肝素、低分子右旋糖酐及抗凝治疗,所有病人皆实行积极地肢体活动等预防措施。