QT离散度与肺心病相关性的临床分析

Relationship between QT dispersion prognosis and cor pulmonale

关键词:  肺心病  QT离散度  预后

Key words:  cor  pulmonale  QT dispersion  prognosis

摘要:

［目的］ 观察QT离散度对肺心病病人的预后影响。［方法］ 随机抽取老年慢性肺心病病人高危组和低危组各30例，第１天行同步12导联心电图检查，测量其QT离散度，并与体检健康老年组60例作对照，进行统计学分析。［结果］ QT离散度在老年肺心病组（高危组＋低危组）为55.46±20.64(40～87)ms，较对照组42.58±18.46(34～66)ms增大，其中高危组61.22±25.74(45～120)ms，较低危组50.25±19.68(35～78)ms增大，低危组50.25±19.68(35～78)ms，较对照组42.58±18.46(34～66)ms增大，均Ｐ＜0.05；而高危组61.22±25.74(45～120)ms，与对照组42.58±18.46(34～66)ms比较差异更加显著，Ｐ＜0.01。［结论］ 老年肺心病病情越重其QT离散度增大越明显，两者呈正相关，QT离散度越大，预后越差。

Abstract:

［Objective］ To observe the prognosis effect of QT dispersion on cor pulmonale. ［Methods］ Sixty cases were randomly selected from chronic cor pulmonale and divided into high risk group (30 cases )and low risk group (30 cases ).Synchronous 12-lead ECG was examed when they were in hospital first day.Their QT dispersion was examed and compared with 60 cases of healthy normal control group. ［Results］ In 60 cases QT dispersion cor pulmonale 55.46±20.64(40～87)ms significantly increased (P<0.05) in comporision with healthy normal control group4 2.58±18.46(34～66)ms, QT dispersion in high risk group　61.22±25.74 (45～120)ms increased (P<0.05)in comporision with low risk group　50.25±19.68(35～78)ms, QT dispersion in low risk group　50.25±19.68(35～78)ms in comporision with healthy normal control group　42.58±18.46(34～66)msincreased (P<0.05).QT dispersion in high risk group　61.22±25.74(45～120)ms in comporision with healthy normal control group　42.58±18.46(34～66)ms increased significantly (P<0.01). ［Conclusion］ The more serious the severity of cor pulmonale is the more obvious QT dispersion increased,which show positive correlation.