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Changes in Left Ventricular Function Assessed by 3D Echocardiography During Severe Central Hypovolemia in Healthy Humans.
Echocardiography
March 2025
Department of Physical Therapy, Faculty of Health Science, Kyorin University, Mitaka City, Tokyo, Japan.
Purpose: Central hypovolemia is considered to lead to a compensatory increase in cardiac contractility. From a physiological perspective, left ventricular (LV) twisting motion, which plays an important role in maintaining cardiac output, should be enhanced during central hypovolemia, but previous studies have shown inconsistent findings. Using 3D echocardiography, we tested the hypothesis that the LV twisting and untwisting motion would be enhanced during severe central hypovolemia.
View Article and Find Full Text PDFLeft ventricular-arterial coupling and mortality in the cardiac intensive care unit.
Eur Heart J Acute Cardiovasc Care
March 2025
Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.
Background: Left ventricular (LV) ventricular-arterial coupling (VAC) refers to the ratio of afterload (effective arterial elastance) to contractility (end-systolic elastance) as an integrated marker of cardiac performance. We sought to determine whether the echocardiographic VAC ratio, defined using the ratio of LV end-systolic volume (LVESV) to stroke volume (SV), predicted mortality in the cardiac intensive care unit (CICU).
Methods: Mayo Clinic CICU patients from 2007 and 2018 were included.
Frontal Plane QRS - T Angle Is a Predictor of Ventricular Arrhythmia in Heart Failure With Preserved Ejection Fraction.
Ann Noninvasive Electrocardiol
March 2025
Department of Cardiology, Tokat Gaziosmanpasa University Hospital, Tokat, Turkey.
Introduction: Various ventricular repolarization parameters are known to predict ventricular arrhythmias and mortality in various diseases. Although mortality in patients with heart failure with preserved ejection fraction (HFpEF) is similar to that in heart failure with reduced ejection fraction patients, studies on this subject are more limited. Therefore, it is important to evaluate the relationship between ventricular arrhythmias and mortality and ventricular repolarization parameters, especially the frontal plane QRS-T angle, in patients with HFpEF.
View Article and Find Full Text PDFTransthyretin Cardiac Amyloidosis in a Very Elderly Patient With a History of Inferior Myocardial Infarction: A Case Report.
Cureus
February 2025
Department of Cardiology, National Hospital Organization Hiroshima-Nishi Medical Center, Otake, JPN.
Transthyretin cardiac amyloidosis (ATTR-CA) involves the buildup of transthyretin protein in the heart muscle in the form of amyloid fibrils, which can affect heart structure and function. Common ECG findings of ATTR-CA include low QRS voltage and a pseudo-myocardial infarction (MI) pattern, defined as pathological Q waves or QS complexes in two consecutive leads without a history of MI or echocardiographic evidence of akinetic areas. Here, we present a case of ATTR-CA in a very elderly patient, in whom pathological Q waves on ECG were true indicators of a prior inferior MI.
View Article and Find Full Text PDFCardiac damage after polytrauma: the role of systematic transthoracic echocardiography - a pilot study.
World J Emerg Surg
March 2025
Department of Trauma Surgery and Orthopedics, Goethe University Frankfurt, University Hospital, 60590, Frankfurt, Germany.
Background: Heart injuries following polytrauma (PT) are identified as a predictor of poor outcome. The diagnostic algorithm of cardiac damage after trauma consists of the systemic measurement of cardiac damage markers, a 3-channel ECG and if there are any suspicious findings, the conduction of a transthoracic echocardiography (TTE). The aim of this study was to implement a systematic analysis of cardiac function using TTE in PT-patients.
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