[The electrocardiographic anomalies and 2D-echocardiographic findings during the recovery phase of the stress test in the postinfarct patient].
BACKGROUND
The appearance or the increase of repolarization abnormalities in the EKG during post exercise (ET) recovery phase (R) is considered a marker of ischemia.


METHODS
In order to evaluate the real meaning of these changes we compared the EKG data with eventual modifications of left ventricular kinesis analyzed by 2D-ECHO. 10 male patients with previous myocardial infarction, mean age 50 +/- 4.8 y, underwent exercise testing on a treadmill (Bruce's protocol) and continuous 2D-ECHO observation from the end of exercise along the whole R. Patients were divided in two groups: Group A (6 patients) and Group B (4 patients), all free of symptoms.


RESULTS
Group A showed ischemic EKG markers during exercise which increased during R; Group B showed ischemic EKG markers only during R. The 2D-ECHO showed in Group A an impairment of left ventricular kinesis at peak exercise without increase or extension during R (WMSI at rest 1.32; peak ET 1.60; R 1.60); in Group B the kinetic alterations appeared only in R (WMSI at rest 1.33, peak ET 1.42; R 1.80), strictly related to EKG markers.


CONCLUSIONS
The data suggest : 1) that the increase of EKG abnormalities already present during exercise do not seem to imply more severe ischemia; 2) that EKG changes appearing during R are markers of ischemia which occur in the R.
Anzà
C
C
Divisione di Cardiologia, Fondazione Clinica del Lavoro, IRCCS, Tradate.
Santoro
F
F
Maslowsky
F
F
Colombo
E
E
Laporta
A
A
Pedretti
R
R
Bonelli
R
R
Radice
E
E
Carù
B
B
D004452:Echocardiography; D004562:Electrocardiography; D005080:Exercise Test; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*
Anomalie elettrocardiografische e reperti ecocardiografici 2D durante la fase di recupero del test ergometrico nel post-infarto.