From data in the literature as well as the authors' own experience ensues that diagnosed and objectively confirmed deep venous thrombosis can be successfully treated in out-patients departments by low-molecular heparin and compression with full mobilization without any major risk of pulmonary embolism and without the need of hospital admission (65 out-patients). Despite the high price of low-molecular heparin, treatment is economical as it does not require monitoring of haemocoagulation for hospital admission. Partsch et al. 1997 proved unequivoca lambda y that the rate of new attacks of pulmonary embolism during treatment is significantly lower than during classical treatment with non-fractionated heparin and immobilization.