title: [The relationship of ECG and pregnancy outcome of older pregnant woman in late pregnancy].
abstract: OBJECTIVE
  To observe the changes of electrocardiogram (ECG) and pregnancy outcome of the late pregnancy women.
  
  
  METHODS
  Late pregnancy women were divided into two groups by age: over 35 group and under 35 group. The incidence of abnormal electrocardiogram was recorded when the patients were subjected to routine ECG examination. Then the pregnancy, delivery outcome and if there's low birth weight newborn were recorded later.
  
  
  RESULTS
  The incidence of abnormal ECG in over 35 group was significantly higher than that in under 35 group (P < 0.05). And the incidence of ST segment changes, arrhythmia in the group of former was higher than that in the group of latter (P < 0.05). Among the different type of arrhythmia, the incidence of sinus bradycardia and ventricular premature beat in the group of former were higher than those in the group of latter (P < 0.05). But the incidence of sinus tachycardia in the former group was obviously lower than that in the latter group (P < 0.05). The incidence of pregnancy loss in over 35 with abnormal ECG group was significantly higher than that in under 35 with normal or abnormal ECG groups (P < 0.05). The incidence of premature birth in over 35 with abnormal ECG group was significantly higher than that in over 35 with normal ECG group (P < 0.05). The incidence of low body weight in over 35 with abnormal ECG group was significantly higher than that in under 35 with normal ECG group (P < 0.05).
  
  
  CONCLUSIONS
  The late pregnancy women with the age of over 35 are more likely to have ECG abnormalities, such as arrhythmia, myocardial ischemia and so on. The older pregnant women with abnormal ECG easily suffer from pregnancy losing, premature birth and having a low birth weight baby.
authors.forename: Xiao-Qin
authors.initials: XQ
authors.lastname: Zhao
authors.forename: Chun-Guang
authors.initials: CG
authors.lastname: Wang
authors.forename: Yu-Xia
authors.initials: YX
authors.lastname: Song
authors.forename: Hong
authors.initials: H
authors.lastname: Jiao
mesh_terms: D000328:Adult; D000367:Age Factors; D001145:Arrhythmias, Cardiac / Q000453:epidemiology; D004562:Electrocardiography; D005260:Female; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology*