title: Relationship between ECG findings and pulmonary artery pressure in patients with acute massive pulmonary thromboembolism.
abstract: Pulmonary thromboembolism (PTE) is associated with various electrocardiogram (ECG) abnormalities, but the utility of evaluating the severity of PTE based on ECG abnormalities alone has not been investigated in Japanese patients previously. The purpose of this study was to examine the relationship between ECG abnormalities and the mean pulmonary artery pressure (MPAP) in patients with acute massive PTE (AMPTE). ECG examination of 21 patients, who were diagnosed with AMPTE by pulmonary arteriography, found that S(1)Q(3)T (3) was the most frequently observed abnormality (in 67% of the patients), followed by negative T (62%), clockwise rotation (57%), and ST elevation (48%). When these patients were divided into 2 groups based on the level of MPAP, 8 of the 11 ECG findings, which were associated with PTE in a previous report, were more frequently observed in Group H (MPAP >/=40 mmHg) than in Group L (MPAP <40 mmHg). MPAP correlated significantly with the total number of ECG abnormalities (r=0.82, p<0.001). In particular, at least 5 ECG abnormalities were noted in patients with MPAP >/=45 mmHg. These results suggested that the total number of ECG abnormalities in patients with AMPTE can be used to evaluate the severity of APTE, including PAP level.
authors.affiliation: Department of Internal Medicine, Sasebo Municipal General Hospital, Nagasaki, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Yoshinaga
authors.forename: Satoshi
authors.initials: S
authors.lastname: Ikeda
authors.forename: Masahiro
authors.initials: M
authors.lastname: Shikuwa
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Miyahara
authors.forename: Shigeru
authors.initials: S
authors.lastname: Kohno
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D001794:Blood Pressure; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000503:physiopathology*; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000503:physiopathology; D012044:Regression Analysis; D012720:Severity of Illness Index