What is considered the common risk factor for pulmonary embolism (PE) after surgery?

Deep vein thrombosis (DVT) is considered a common risk factor for pulmonary embolism (PE) after surgery primarily because of the direct connection between the two conditions. DVT can occur when blood clots form in the deep veins of the legs, which can happen due to factors such as immobility, surgical trauma, and increased coagulability in the postoperative period. If a part of this thrombus dislodges, it can travel through the bloodstream to the lungs, resulting in a pulmonary embolism.

The surgical setting often involves prolonged immobility and various physiological changes that elevate the risk of thrombosis, making DVT a significant precursor to PE. Awareness of the presence of DVT in postoperative patients is crucial, as it highlights the need for preventive measures, such as anticoagulation and mobilization, to reduce the incidence of both DVT and subsequent PE.

Other factors like age, obesity, and a history of venous thromboembolism (VTE) also contribute to the risk of PE, but they are more general risk factors rather than direct precursors like DVT. Addressing DVT specifically in the surgical context allows healthcare professionals to implement targeted prevention strategies effectively.