全球左心室表现和 suture annuloplasty 后的区域性缩功能,用于慢性 mitra regurgitation
K Sakai1, S Nakano, K Taniguchi
1Division of Cardiovascular Surgery, Sakurabashi Watanabe Hospital, Osaka, Japan.
Circulation
|November 1, 1992
概括
针无效整形手术在慢性腹的手术后更好地保护左心室 (LV) 功能,而不是 mitra 置换 (MVR). 这种技术通过保持环状收缩和膜-心室相互作用来维持LV的缩性能.
科学领域:
- 心血管外科心血管外科
- 心脏机械学 心脏机械学
- 膜心脏疾病 膜心脏疾病
背景情况:
- 在慢性腹回手术期间,腹下器器对于保持左心室 (LV) 性能至关重要.
- 部无效整形允许部环状收缩,但其对术后LV性能的影响尚未完全理解.
研究的目的:
- 为了比较手术后的左心室 (LV) 功能,在接受针解体术的患者和接受常规 mitra 置换 (MVR) 慢性 mitra 吐的患者之间.
主要方法:
- 全球和区域LV功能的比较在12名 suture annuloplasty患者和12名 MVR患者中.
- 在手术前和后 (平均10.8个月) 使用了电影血管学和心声学.
- 分析了终端透缩体积指数,终端静缩体积指数,喷射率和终端静缩体壁应力.
主要成果:
- 部解剖手术时排气分数保持稳定,但在MVR时下降 (p < 0.01).
- 部无效塑造保持了LV横截面积喷射率,与MVR不同 (p < 0.01).
- 在两组中都观察到喷射分数和末缩壁应力之间的显著反向关系.
结论:
- 与传统的MVR相比,结结膜整形提供了优越的术后LV缩性能.
- 这种益处归因于保留了心肌环状收缩和心肌-心室相互作用.
- 改善的区域壁的运动与改善的整体LV性能相关联.
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