The purpose of this study is to investigate the prevention of Pulmonary Embolism in Patients who With General Anesthesia Operation in Perioperative Period.
Patients who received general anesthesia operation in Beijing Chaoyang Hospital affiliated to Capital Medical University were collected. The incidence of pulmonary embolism in perioperative period and age, gender,the surgery , clinical stage, clinical efficacy assessment will be further analyzed.
Study Type
OBSERVATIONAL
Enrollment
500
Liu Sijie
Beijing, Beijing Municipality, China
RECRUITINGThe changes of patients'Lower extremity vein in perioperative period of general anesthesia operation
Time frame: 3 days before operation to 7 days after the operation
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