Theron H D, Jacobs J J, Marx J D
Department of Cardiology, University of the Orange Free State, Bloemfontein.
S Afr Med J. 1996 Apr;86 Suppl 2:C75-6.
Single-leaflet disc immobilisation in 3 patients with St Jude Medical prostheses and 1 patient with a Carbo Medics valve prosthesis resulted in mild mitral regurgitation without acute pulmonary oedema. Three patients presented with slowly worsening pulmonary congestion while 1 patient had neurological symptoms. Clinicians need to be aware of the possibility of single-leaflet failure in a bileaflet cardiac valve prosthesis, because haemodynamic deterioration occurs insidiously in these patients, resulting in atypical symptoms and signs.
3例使用圣犹达医疗公司人工瓣膜和1例使用卡波医药公司瓣膜假体的患者出现单叶瓣固定，导致轻度二尖瓣反流但无急性肺水肿。3例患者出现逐渐加重的肺淤血，1例患者有神经症状。临床医生需要意识到双叶心脏瓣膜假体出现单叶瓣故障的可能性，因为这些患者的血流动力学恶化是隐匿发生的，会导致非典型症状和体征。
