Asymptomatic ST-segment depression during exercise testing and the risk of sudden cardiac death in middle-aged men: a population-based follow-up study.
Eur Heart J
; 30(5): 558-65, 2009 Mar.
Article
in En
| MEDLINE
| ID: mdl-19168533
ABSTRACT
AIMS:
Silent electrocardiographic ST change predicts future coronary events in patients with coronary heart disease (CHD), but the prognostic significance of asymptomatic ST-segment depression with respect to sudden cardiac death in subjects without apparent CHD is not well known. METHODS ANDRESULTS:
We investigated the association between silent ST-segment depression during and after maximal symptom-limited exercise test and the risk of sudden cardiac death in a population-based sample of 1769 men without evident CHD. A total of 72 sudden cardiac death occurred during the median follow-up of 18 years. The risk of sudden cardiac death was increased among men with asymptomatic ST-segment depression during exercise [hazard ratio (HR) 2.1, 95% confidence interval (CI) 1.2-3.9] as well as among those with asymptomatic ST-segment depression during recovery period (HR 3.2, 95% CI 1.7-6.0). Asymptomatic ST-depression during exercise testing was a stronger predictor for the risk of sudden cardiac death especially among smokers as well as in hypercholesterolaemic and hypertensive men than in men without these risk factors.CONCLUSION:
Asymptomatic ST-segment depression was a very strong predictor of sudden cardiac death in men with any conventional risk factor but no previously diagnosed CHD, emphasizing the value of exercise testing to identify asymptomatic high-risk men who could benefit from preventive measures.
Full text:
1
Database:
MEDLINE
Main subject:
Exercise
/
Death, Sudden, Cardiac
Type of study:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
Limits:
Adult
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Europa
Language:
En
Year:
2009
Type:
Article