Department of Cardiology, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research, New Delhi, 110002, India.
Department of Cardiology, Govind Ballabh Pant Institute of Postgraduate Medical Education and Research, New Delhi, 110002, India.
Indian Heart J. 2022 Jan-Feb;74(1):63-65. doi: 10.1016/j.ihj.2021.12.011. Epub 2021 Dec 25.
We studied left atrial (LA) function in severe rheumatic mitral stenosis (MS) patients using two-dimensional speckle tracking echocardiography (STE). Eighty patients with isolated severe MS in sinus rhythm and 40 controls underwent comprehensive echocardiography including STE derived LA strain [reservoir strain (LAS), conduit strain (LAS) and contractile strain (LAS)]. The mean MVA was 0.93 ± 0.21 cm. The mean values of LAS (14.73 ± 8.59%), LAS (-7.61 ± 4.47%) and LAS (-7.16 ± 5.15%) in patients were significantly lower (p < 0.001) vs. controls 44.11 ± 10.44%, -32.45 ± 7.63%, -11.85 ± 6.77% respectively and showed decreasing trend with increasing MS severity and higher NYHA class. In conclusion, LA dysfunction is prevalent in severe MS irrespective of NYHA functional class.
我们使用二维斑点追踪超声心动图（STE）研究了严重风湿性二尖瓣狭窄（MS）患者的左心房（LA）功能。80 例窦性心律的孤立性严重 MS 患者和 40 例对照者接受了综合超声心动图检查，包括 STE 衍生的 LA 应变[储备应变（LAS）、传导应变（LAS）和收缩应变（LAS）]。平均 MV A 值为 0.93±0.21cm。患者的 LAS（14.73±8.59%）、LAS（-7.61±4.47%）和 LAS（-7.16±5.15%）的平均值明显低于对照组（44.11±10.44%，-32.45±7.63%，-11.85±6.77%）（p<0.001），且随着 MS 严重程度和更高的 NYHA 分级的增加呈下降趋势。总之，LA 功能障碍在严重 MS 中很常见，与 NYHA 功能分级无关。
