摘要
目的评价二尖瓣对合高度指数评估二尖瓣成形术成形效果的可行性。方法我院因单纯二尖瓣脱垂行二尖瓣成形术患者11例,术后复跳即刻二尖瓣反流面积为2～4cm2。二尖瓣成形术前、术后复跳即刻、术后1周测量并计算患者二尖瓣A1-P1区、A2-P2区、A3-P3区对合高度指数。术后复跳即刻、术后1周定量描记患者二尖瓣反流量。结果 11例患者除1例术后即刻出现大量反流(≥8cm2)行二尖瓣置换术外,其余10例均完成二尖瓣成形术。10例患者二尖瓣对合高度指数术前分别为:A1-P1区(15.1±13.0)%,A2-P2区(5.7±9.3)%,A3-P3区(6.4±9.4)%;术后复跳即刻分别为:A1-P1区(37.7±9.6)%,A2-P2区(43.1±6.4)%,A3-P3区(35.8±7.0)%;术后1周分别为:A1-P1区(41.1±7.9)%,A2-P2区(43.1±7.4)%,A3-P3区(36.7±6.9)%。10例患者术后复跳即刻二尖瓣各区域对合高度指数与术前比较差异均有统计学意义(t值分别为4.4、10.5和7.9,P均<0.05),但与术后1周比较差异均无统计学意义。10例患者二尖瓣反流量术后复跳即刻为(2.84±0.44)cm2,术后1周为(0.70±0.42)cm2,差异有统计学意义(t=12.89,P<0.05)。结论超声心动图测量二尖瓣对合高度指数可行。二尖瓣对合高度指数可作为一项超声定量指标即时评价二尖瓣成形术成形效果。
Objective To investigate the feasibility to assess the postoperative mitral vavle coaptation status by using the parameter of coaptation height index（CHI）.Methods The study included 11 patients,who had a mitral regurgitation area ranged from 2 cm2 to 4 cm2 immediately after operation.These patients′ CHIs were obtained using transesophageal echocardiography.CHI was calculated.The preoperative,immediately postoperative,and one week postoperative data of CHI were compared.Results Except for one patient（mitral regurgitation≥8 cm2 after surgery）,other 10 patients had the mitral valve replacement successfully.For these 10 patients,the preoperative CHIs were A1-P1 area（15.1±13.0）%,A2-P2 area（5.7±9.3）%,A3-P3 area（6.4±9.4）%;the immediately postoperative CHIs were A1-P1 area（37.7±9.6）%,A2-P2 area（43.1±6.4）%,A3-P3 area（35.8±7.0）%;and the one week postoperative CHIs were A1-P1 area（41.1±7.9）%,A2-P2 area（43.1±7.4）%,A3-P3 area（36.7±6.9）%.The CHI changed significantly before and after operation（t=4.4,10.5 and 7.9,all P0.05）.And there were no significance between the immediately and one week postoperative CHI.The immediately postoperative regurgitation were（2.84±0.44）cm2,and it became to be（0.70±0.42）cm2 one week later.There was a significant difference between them（t=12.89,P0.05）.Conclusion The mitral valve CHI can be obtained by two-dimensional transesophageal echocardiography,which is feasibile to be taken as a new parameter to assess mitral vavle repairing effect,and to help the surgeons make an accurate surgery program.
出处
《中华医学超声杂志（电子版）》
2012年第11期31-34,共4页
Chinese Journal of Medical Ultrasound(Electronic Edition)
基金
国家自然科学基金(30970840)
