Fraser K, Sugden B A
Thorax. 1977 Dec;32(6):759-62. doi: 10.1136/thx.32.6.759.
Sixty-seven patients undergoing a second closed mitral valvotomy between 1957 and 1974 have been reviewed. Since 1951, 510 patients have had a primary closed valvotomy in the same unit. The incidence of restenosis severe enough to warrant further surgery is higher after a finger fracture procedure (40%) than after a Tubbs dilator valvotomy (9.2%). There is an operative mortality of 10.4%, and a further late mortality of 23.8% after a second closed valvotomy. Of the surviving patients, 70.5% have had a good or excellent result. The group with poor results is characterised by the presence of a calcified fixed valve, making valvotomy difficult and incomplete. In the presence of a non-calcified valve, a second valvotomy still has a place when surgery for restenosis is required.
对1957年至1974年间接受二次闭式二尖瓣切开术的67例患者进行了回顾性研究。自1951年以来，同一科室有510例患者接受了初次闭式瓣膜切开术。手指骨折法术后再狭窄严重到需要进一步手术的发生率（40%）高于塔布斯扩张器瓣膜切开术（9.2%）。二次闭式二尖瓣切开术后手术死亡率为10.4%，后期死亡率为23.8%。在存活患者中，70.5%的患者效果良好或极佳。效果不佳的患者群体的特征是存在钙化固定瓣膜，使得瓣膜切开术困难且不彻底。在存在非钙化瓣膜的情况下，当需要对再狭窄进行手术时，二次瓣膜切开术仍有其应用价值。
