Ho K J
J Thorac Cardiovasc Surg. 1979 Jun;77(6):875-9.
A case is presented of chronic systemic Dacron and Teflon embolism arising from a Beall Model 103 mitral valve prosthesis installed 11 years earlier. The emboli induced intense foreign body reaction resulting in numerous microgranulomas throughout the body. Multiple microinfarctions in the brain accounted for repeated episodes of transient ischemic attacks. Wearing of the prosthesis with consequent embolic complications seems to be the inevitable terminal fate of such early models of the Beall valve. Regular assessment of the functional status of such prostheses, particularly those in place for more than 5 years, is strongly recommended.
本文报告一例慢性全身性涤纶和聚四氟乙烯栓塞病例，栓塞源自11年前植入的Beall 103型二尖瓣人工瓣膜。栓子引发强烈的异物反应，导致全身出现大量微肉芽肿。脑部多发性微梗死导致反复出现短暂性脑缺血发作。佩戴该人工瓣膜并由此引发栓塞并发症似乎是Beall瓣膜这类早期型号不可避免的最终结局。强烈建议定期评估此类人工瓣膜的功能状态，尤其是那些已植入超过5年的瓣膜。
