Abstract：ObjectiveTo analyze the role that the changes of electrocardiogram（ECG）plays in the diagnosis of pulmonary embolism(PE).Methods Retrospective observation method was used to analyze ECGs of 18 patients who had been diagnosed with PE. ResultsNormal ECGs were found in 3 cases and abnormal ones in 15 cases, where there were 7 cases (38.89%) of sinus tachycardia, 5 cases(27.78%) of SⅠQⅢTⅢ pattern, 5 cases(27.78%) of complete or incomplete right bundle branch block, 4 cases(22.22%) of right leaning of frontal plane, 3 cases(16.67%) of clockwise rotation, 11 cases(61.11%) of ST segment, 11 cases(61.11%) of T wave inversion, 2 cases(11.11%) of pulmonary P wave, 7 cases(38.89%) of terminal R wave in aVR lead as well as 4 cases(22.22%) of atrial arrhythmia.Conclusion Although the electrocardiographic diagnosis of PE is clinically nonspecific and nondiagnostic, characteristics of ECG have some value in suggesting the disease yet, especially the dynamic changes of ECG. Combing with clinical observation, it may help to make diagnosis and differential diagnosis, as well as reduce both of omission diagnostic rate and misdiagnosis rate.
2013, Vol. 22 
