Pseudonormalized Doppler total ejection isovolume (Tei) index in patients with right ventricular acute myocardial infarction.
The Doppler total ejection isovolume (Tei) index is useful for estimating global cardiac function. However, the relation between the right ventricular (RV) Tei index and RV infarction has not been investigated. The relation between the RV Tei index and severity of RV infarction was evaluated in 25 patients with inferior wall acute myocardial infarction (13 with and 12 without RV infarction). RV infarction was diagnosed when right atrial pressure was > or = 10 mm Hg or when right atrial pressure/pulmonary capillary wedge pressure was >0.8 by catheterization. The RV Tei index was significantly increased in patients with RV infarction compared with those without (0.53 +/- 0.15 vs 0.38 +/- 0.14, p <0.05). The RV Tei index in patients with severe RV infarction (right atrial pressure > or = 15 mm Hg) was significantly smaller compared with those with mild/moderate RV infarction (right atrial pressure <15 mm Hg) and showed no significant difference in patients with myocardial infarction but without RV infarction (0.44 +/- 0.09 vs 0.61 +/- 0.16 vs 0.38 +/- 0.14, severe RV infarction vs mild/moderate RV infarction vs no RV infarction, p <0.01). The RV Tei index is generally increased in patients with RV infarction; however, severe RV infarction can be manifested with limited or no increase in the Tei index (pseudonormalization).
Yoshifuku
Shiro
S
First Department of Internal Medicine, Kagoshima University School of Medicine, Kagoshima City, Japan.
Otsuji
Yutaka
Y
Takasaki
Kunitsugu
K
Yuge
Keiko
K
Kisanuki
Akira
A
Toyonaga
Koichi
K
Lee
Souki
S
Murayama
Takashi
T
Nakashima
Hitoshi
H
Kumanohoso
Toshiro
T
Minagoe
Shinichi
S
Tei
Chuwa
C
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006328:Cardiac Catheterization; D015150:Echocardiography, Doppler / Q000379:methods*; D004562:Electrocardiography; D005260:Female; D006334:Heart Function Tests; D006439:Hemodynamics / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D011336:Probability; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D013318:Stroke Volume; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging* / Q000503:physiopathology*