Korean Circ J.  2002 Feb;32(2):131-136. 10.4070/kcj.2002.32.2.131.

"Recovery Only" ST-Segment Depressions in an Exercise Treadmill Test and the Prediction of Coronary Artery Disease

• Lee N
• Choi SH
• Park WJ
• Cho KY
• Choi YJ
• Park DK
• Hong KS
• Doo YC
• Han KR
• Oh DJ
• Ryu KH
• Rhim CY
• Lee KH
• Lee Y

• KMID: 2227279
• DOI: http://doi.org/10.4070/kcj.2002.32.2.131

Abstract

BACKGROUND AND OBJECTIVES
"Recovery only" ST-segment depressions are sometimes detected during an exercise treadmill test. We undertook this study in order to clarify the predictive value of exercise-induced ST-segment depression occurring in recovery only.
SUBJECTS AND METHODS
The study included 931 patients who had both a sign or symptom -limited treadmill test. Of the 66 patients who demonstrated abnormal ST-segment responses, 43 experienced ST-segment depressions during exercise (Group A) and 23 displayed such responses only during recovery (Group B).
RESULTS
The positive predictive value of an exercise treadmill test for significant angiographic disease in group A (81.3%) was statistically different from the predictive value in group B (30.4%). Horizontal ST-segment depression in recovery periods and female sex were statistically significant factors favoring negative coronary angiographic results.
CONCLUSION
The occurrence of horizontal mild ST-segment depression during only the recovery periodgenerally represents a "false positive" response, particularly in female patients.

Keyword

Exercise test; Coronary disease

MeSH Terms

Coronary Artery Disease*
Coronary Disease
Coronary Vessels*
Depression*
Exercise Test*
Female
Humans