Right-sided chest lead electrocardiographic abnormalities in acute pulmonary embolism
- VernacularTitle:急性肺栓塞右胸导联心电图的异常改变
- Author:
Dongxiang YU
;
Dongmei ZHANG
- Publication Type:Journal Article
- Keywords:
Pulmonary embolism;
Electrocardiography
- From:
Chinese Journal of General Practitioners
2002;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To identify right-sided chest lead electrocardiograph (ECG) abnormalities in acute pulmonary embolismMethods Changes of routinely recorded 12-lead and right-sided chest leads V 3R, V 4R and V 5R ECGs in 98 patients with suspected pulmonary embolism hospitalized at Ninghe County Hospital during March 1999 to October 2003 were analyzed retrospectively Parameters of both right and left-sided ECGs available were measured and comparedResults Diagnosis of acute pulmonary embolism was established in only 23 (234%) of 98 suspected patients, 18 men (78%) and 5 women (22%), with mean age of (48 ? 10) ECG changes suggestive of acute right ventricular strain were found in both right and left-sided leads in 18 (78%) of 23 patients with pulmonary embolism, and their ECG changes disappeared within 24 hours after admission or onset of symptoms with pulmonary embolism in 13 (72%) of them ST segment elevation in leads V 3R, V 4R, V 5R ,and abnormalities in standard 12-lead ECGs were found in nine (39%), and five (22%) of them with a diagnosis of pulmonary embolism had normal left-sided ECGs, but elevated ST segment and qr or QS pattern (prominent q waves) in leads V 3R, V 4R and V 5R in their right-sided ECGs Thirteen (565%) of them showed ST-segment elevated in leads V 3R, V 4R and V 5R,and 20 (87%) showed qr configuration in lead V 3RConclusions Patients with acute pulmonary embolism often show characteristic ECG changes in right-sided chest leads When pulmonary embolism is suspected, especially no typical changes in routinely-recorded standard 12-lead ECGs can be found, right-sided chest lead ECG should be performed
