[Hospital outcome of patients with right ventricular infarction and the importance of right coronary artery patency].
OBJECTIVE
To evaluate the importance of the right coronary artery (RCA) patency in patients with right ventricular infarction.


METHODS
Fifty-two patients with inferior wall myocardial infarction and right ventricular involvement were studied and divided in two groups: group A (GA) included 35 patients in whom the RCA was patent at coronary angiography, and group B (GB), 17 who had an occluded RCA. They were prospectively evaluated for electrical and hemodynamic complications, as well as in-hospital mortality.


RESULTS
The mortality in GA was 11% and 29% in GB, p = 0.13; electrical complications were 11% in GA and 35% in GB, p = 0.06; hemodynamic complications were 8% in GA and 41% in GB, p = 0.009.


CONCLUSIONS
These findings suggest a trend towards reduction in mortality and electrical complications, and significant reduction of hemodynamic complications in patients with inferior wall myocardial infarction with involvement of the right ventricle who have the RCA patent. Thus, RCA patency appears to be important in determining in-hospital outcomes of these patients.
Instituto do Coração do Hospital das Clínicas-FMUSP, São Paulo.
R
R
Kalil Filho
P R
PR
Soares
C E
CE
Rochitte
I
I
Antelmi
C P
CP
de Albuquerque
G
G
Bellotti
F
F
Pileggi
B
B
Tranchesi Júnior
D003331:Coronary Vessels / Q000503:physiopathology*; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology*; D011379:Prognosis; D014654:Vascular Patency / Q000502:physiology*
Evolução hospitalar de pacientes com infarto de ventrículo direito e a importância da perviabilidade da artéria coronária direita.