Application and clinical significance of tissue ultrasound for assessment of right ventricular diastolic function in patients with coronary slow flow.

Xuefang Zhu,Zenghua Zhu,Zhen Wei,Xiuping Xu

doi:10.12669/pjms.38.4.5342

Abstract

Objectives:To evaluate right ventricular diastolic function in patients with coronary slow flow phenomenon (CSFP) by using Doppler tissue imaging (DTI).Methods:CSFP patients diagnosed using coronary angiography from June 2019 to December 2020 at the third Hospital of Quzhou were retrospectively investigated, with a similar number of patients with normal coronary blood flow during the same period taken as the control group. Right ventricular systolic and diastolic function index was measured via DTI.Results:No differences were found between CSFP and control groups in terms of baseline data, RV end systolic diameter, RV end diastolic diameter, or RV ejection fraction. The peak velocity E in the early diastolic phase of the right ventricle was decreased in CSFP patients, while the peak velocity a in the late diastolic phase of the right ventricle was increased, resulting in a lower E / a ratio.Conclusions:Right ventricular diastolic function in patients with CSFP is decreased, and this can be identified using DTI. DTI has important applicative value for evaluating right ventricular diastolic function in patients with CSFP.

Highlights

Coronary slow-flow phenomenon (CSFP) is an angiographic phenomenon where dye passage is slow in coronary angiography in the absence of significant arterial lesions or other causes.[1]
The purpose of the study was to determine the ability of Doppler tissue imaging technology to evaluate the right ventricular function of patients with CSFP, explore the characteristics of CSFP cardiac tissue ultrasound, and to provide a reference for the clinical prevention and treatment of CSFP
There were no significant differences in gender, age, BMI, heart rate, fasting blood glucose, serum creatinine levels and history of smoking, drinking, coronary heart disease, furosemide use and hyperlipidemia between CSFP and control groups (P>0.05, Table-I)

Summary

Introduction

Coronary slow-flow phenomenon (CSFP) is an angiographic phenomenon where dye passage is slow in coronary angiography in the absence of significant arterial lesions or other causes.[1]. Doppler tissue imaging (DTI) is often used to evaluate cardiac function in the clinic by measuring blood flow velocity under the annulus.[4,5]. This retrospective analysis investigated patients undergoing coronary. The purpose of the study was to determine the ability of Doppler tissue imaging technology to evaluate the right ventricular function of patients with CSFP, explore the characteristics of CSFP cardiac tissue ultrasound, and to provide a reference for the clinical prevention and treatment of CSFP

Objectives

Methods

Conclusion