Katske G, Golding L R, Tubbs R R, Loop F D
Ann Thorac Surg. 1979 Feb;27(2):130-2. doi: 10.1016/s0003-4975(10)63252-3.
Posterior midventricular rupture occurred in 3 patients after insertion of a mitral prosthesis. Iatrogenic surgical trauma was not implicated. There were five clinical factors common to each case: a woman with mitral stenosis; a left ventricle of relatively normal size; the use of intermitent cold cardioplegia; the insertion of a porcine heterograft valve; and transient postoperative hypertension. Rupture in such cases may be caused by hyperdynamic left ventricular contraction against the strut of the prosthesis. Causes of ventricular perforation are discussed.
3例二尖瓣置换术后发生心室后壁破裂。未发现医源性手术创伤。每例均有5个共同的临床因素：二尖瓣狭窄的女性患者；左心室大小相对正常；使用间歇性冷停搏液；植入猪异种移植瓣膜；以及术后短暂性高血压。此类病例中的破裂可能是由于左心室对着人工瓣膜支柱的高动力收缩所致。文中讨论了心室穿孔的原因。
