The clinical application of the recovery time after ST segment depression for the diagnosis of coronary heart disease / 实用医学杂志

ABSTRACT

Objective To investigate the clinical significance of the ST segment changing in treadmill exercise test positive for the diagnosis of coronary heart disease. Methods 133 patients (hospitalized from January 2014 to January 2015) with the ST segment depression≥0.1 mm in treadmill exercise test were retrospectively analyzed. Patients were divided into the observation group and the control group according to the coronary angiography (the dividing line is artery stenosis is more than 50% or not ). ST-segment depression margin and recovery time of the two groups were compared. ST-segment depression margin and recovery time of patients with different vascular lesion number were also analyzed. Results In 133 cases, 79 cases of coronary angiography were positive(59.4%). Positive rate of ST segment recovery time(> 90 s) was 76.9% in. The maximal ST-segment depression margin and recovery time in the observation group were more than the control group, the difference was statistically significant (P 0.05). But in terms of ST-segment recovery time, the double-vessel and multivessel stenosis group were higher than the single-vessel stenosis group , and the difference was statistically significant (P< 0.05). Conclusion Clinically, patients with TET positive combined the ST segment depression and ST-segment recovery time are important hints for the diagnosis of coronary artery disease , and is worthy of promotion.