Kakkar V V, Howe C T, Laws J W, Flanc C
Br Med J. 1969 Mar 29;1(5647):810-1.
Twenty-two patients who had an acute episode of thrombosis in the deep veins of the legs were studied by a new technique of ascending functional cinephlebography 6 to 12 months after the episode of thrombosis.If the condition was diagnosed within 36 hours and the thrombus was dissolved rapidly valve function was preserved. When diagnosis was delayed there was a very great risk of permanent damage to the valves.
22例有下肢深静脉急性血栓形成发作的患者，在血栓形成发作后6至12个月，采用一种新的上行功能电影静脉造影技术进行了研究。如果在36小时内确诊且血栓迅速溶解，则瓣膜功能得以保留。当诊断延迟时，瓣膜发生永久性损害的风险非常大。
