[Prognostic value of the normalization of the exercise test under medical treatment in coronary insufficiency].
The prognostic value of exercise testing was studied in 118 patients with angiographically proven chronic coronary disease, positive ET and/or a history of myocardial infarction (MI) who were followed up for 698 years (mean 5.9 years). Medical treatment was instituted step by step and controlled by repeated ET's. ET remained positive (ST depression 1 mm) in 58 cases (group I), was alternately positive and negative in 22 cases (group II) and became normal in 38 cases (group III). The mean duration of follow-up in these three groups was 5.0, 7.6 and 6.4 years respectively. Eight patients were lost sight of. Ergometric data and outcome were similar in groups II and III, but there were differences between group I (58 patients) and groups II + III (60 patients) as regards: (a) ergometric data: total workload (22,077 +/- 9,860 vs 34,856 +/- 15,552 joules), workload causing a 1 mm ST depression (13,892 +/- 9,253 vs 31,555 +/- 15,811 joules) and maximal ST depression (2.5 +/- 0.9 vs 0.9 +/- 0.8 mm); (b) outcome: cardiac deaths (12 vs 3), myocardial revascularization (19 vs 6); but there was no significant difference as regards MI (4 vs 5), heart failure (11 vs 5) and extracardiac deaths (3 vs 4). It is concluded that the persistence of a positive ET under optimal medical treatment is a major argument in favour of myocardial revascularization.
Witchitz
S
S
Hôpital de jour, hôpital Tenon, Paris.
Koubi
R
R
Boubaker
A
A
Costes
V
V
D000328:Adult; D000368:Aged; D002908:Chronic Disease; D003327:Coronary Disease / Q000175:diagnosis* / Q000188:drug therapy / Q000503:physiopathology; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies
Valeur pronostique de la normalisation de l'épreuve d'effort sous traitement médical dans l'insuffisance coronarienne.