Treadmill exercise tests predischarge and six weeks post-myocardial infarction to detect abnormalities of known prognostic value

M. R. Starling, M. H. Crawford, G. T. Kennedy, R. A. O'Rourke

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

We evaluated 89 patients with predischarge and 6-week post-myocardial infarction treadmill exercise tests to determine the importance of doing repeat tests to identify abnormalities of known prognostic value, and assess the individual variability of treadmill abnormality responses. Nineteen patients (21%) completed only a predischarge exercise test, nine of whom experienced an early cardiac event precluding repeat testing. All nine had a prognostically important treadmill abnormality during the predischarge test. Electrocardiographic ST segment depression was highly reproducible between the early and 6-week tests (k = 0.968). However, angina, inadequate blood pressure response, and ventricular arrhythmias showed limited reproducibility (k = 0.344, 0.50, and 0.166, respectively) and substantial individual variability. Thus, we concluded that: a predischarge treadmill exercise test is important for determining the immediate short-term prognosis of patients after myocardial infarction; and ST segment depression is highly reproducible, whereas other treadmill abnormality responses show substantial variability between the predischarge and 6-week tests.

Original languageEnglish (US)
Pages (from-to)721-727
Number of pages7
JournalAnnals of internal medicine
Volume94
Issue number6
DOIs
StatePublished - 1981

ASJC Scopus subject areas

  • Internal Medicine

Fingerprint Dive into the research topics of 'Treadmill exercise tests predischarge and six weeks post-myocardial infarction to detect abnormalities of known prognostic value'. Together they form a unique fingerprint.

Cite this