Abstract: ObjectiveTo observe the prevalence of deep venous thrombosis(DVT) of lower extremities after acute stroke. MethodsDetection by ultrasonogaphy of bilateral lower extremities was taken in inpatients with stroke within 72 hours 4 days and 14 days after stroke, in order to determine the morbidity of DVT. ResultsThe morbidity of DVT of lower extremities was 7.9%. DVT could be found 4 days after stroke, but the majority of cases were found out 14 days after stroke. DVT mainly affected the paralytic limb, but some of them could involve bilateral limbs.ConclusionDVT of lower extremities could develop at the early stage of stroke. It is necessary to utilize the prophylactic methods to reduce its harmfulness as early as possible.

Key words: deep venous thrombosis, acute stroke, morbidity