Pulmonary embolism responsible for 40% of postoperative deaths.
When no prophylaxis is used after major gynecological surgery for benign diseases the incidence of deep vein thrombosis ranges from 6.2% to 29%.
When no prophylaxis is used after major gynecological surgery for malignant diseases the perioperative risk of the development of deep vein thrombosis ranges from 19.6% to 37.9%.