Diagnostic challenges of heart failure with preserved ejection fraction: focus on echocardiography

Abstract

Aim. To assess the features of diagnosing heart failure with preserved ejection fraction (HFpEF) using echocardiographic markers and diastolic stress test (DST) according to a survey of ultrasound and functional diagnostics specialists in the Russian Federation.Materials and methods. As part of the study, an anonymous survey of 155 ultrasound and functional diagnostic specialists from various Russian regions was conducted. We proposed to answer whether they routinely assess certain echocardiographic parameters necessary for diagnosing HFpEF. The specialists also indicated whether they conduct DST and whether they have the opportunity to refer the patient to this study.Results. A frequency analysis of the responses received was carried out. In routine practice, 83,2% of specialists measure the left ventricular (LV) ejection fraction by Simpson method, 76,1% — by Teichholz method. In addition, 80% of responders analyses LV mass index, 76,1% — relative LV wall thickness, 60% — tricuspid annular plane systolic excursion, 56,8% — left atrial volume index, 51.6% — E/e´ ratio, 94,8% — pulmonary artery systolic pressure, left ventricular global longitudinal strain — 16,1%, 7,7% — left atrial longitudinal strain. Also, 9,7% of specialists conduct DST on their own, while 41,3% have the opportunity to refer patients.Conclusion. The low assessment rate of some ultrasonic HFpEF mar­kers and DST among functional diagnostics specialists in the Russian Federation reduces the detection rate of HFpEF. It is necessary to develop diagnostic algorithms based mainly on clinical and anam­nestic data and available for use by doctors of any specialty.