NCT04959357

The Evaluation of Left Ventricular Systolic Function in Different Types of Ischemic Heart Disease

The Evaluation of Left Ventricular Systolic Function in Different Types of Ischemic Heart Disease by Two-dimensional Speckle-tracking Echocardiography

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 242 (actual)
• Sponsor: Peking University Third Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

The study was designed to evaluate the left ventricular longitudinal strain and strain rate assessed by 2D-STI in patients with coronary microvascular dysfunction (CMD) or obstructive coronary artery disease (CAD) , to investigate the effect of different types of ischemic heart disease on the LV systolic function, and to explore the value of LS on the diagnosis of coronary microvascular dysfunction.

Detailed description

A total of 175 patients with chest pain, without wall motion abnormality and without significant coronary artery stenosis (\<50%) assessed by coronary angiography or coronary computed tomography were enrolled from July 2011 to December 2017. Coronary flow reserve (CFR) of these patients were detected by transthoracic Doppler echocardiography. The patients were divided into coronary microvascular dysfunction group ( CFR≤2.5, n=67) and control group (CFR\>2.5, n=108). At the same time, 67 age-matched patients with any major coronary arteries stenosis≥50% and without wall motion abnormality were involved into the obstructive coronary artery disease group. Parameters of global longitudinal strain (LS) and strain rate, subendocardial LS and subepicardial LS were quantified by 2D-STI, the differences of these parameters among three groups were analyzed，correlation analysis、univariate and multivariate analysis and receiver operating characteristic curve were used.

Conditions

• Coronary Microvascular Dysfunction
• Obstructive Coronary Heart Disease

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Two dimensional speckle tracking imaging	lobal longitudinal strain and strain rate, subendocardial LS and subepicardial LS were quantified by two dimensional speckle tracking imaging

Timeline

• Start date: 2018-03-15
• Primary completion: 2018-10-30
• Completion: 2018-12-30
• First posted: 2021-07-13
• Last updated: 2021-07-13

Locations

1 site across 1 country: China