Authors took note of transitoric cardiac output dissociation between the right and left ventricle during the treatment of the acute myocardial infarction controlled hemodynamically, without the presence of a provable anatomical shunt. They demonstrate some kinds of clinical appearances and call the attention to the clinical importance of the progressive cardiac output dissociation. The re-establishment of balance of the right and left cardiac output in resting position at the most optimal level of the oxygen demand, simultaneously the correction of the blood pressure and blood volume correlation can help the treatment of such acute cardiovascular cases which are complicated hemodynamic disturbances. The authors demonstrate a simple method for the registration of the cardiac output in the left and right ventricles. It has been found that the right cardiac output determined by the thermodilution method cannot be referred to the left one in such cases when the dissociation of cardiac output is present, because it can cause damage.
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Echocardiography
January 2025
Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Objectives: Supra-normal left ventricular ejection fraction (snLVEF) represents a heterogeneous group with distinct prognoses. Left atrial (LA) strain, measured by speckle tracking echocardiography (STE), is a validated prognostic indicator. This study aimed to evaluate LA and left ventricular (LV) mechanical strains in hypertensive patients with snLVEF.
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December 2024
Division of Pulmonary, Critical Care, and Sleep Medicine, New York University Langone Health, New York, New York; and.
Background: Advanced critical care echocardiography comprises a specific set of qualitative and quantitative point-of-care echocardiography skills, including a reliable, noninvasive method to measure cardiac output. This technique requires echocardiographic measurement of left ventricular outflow tract (LVOT) diameter and LVOT velocity time integral (VTI). Although there is a demand among critical care fellows to learn these advanced techniques, there are no data describing the acquisition of mastery in these skills.
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January 2025
Department of Cardiovascular Disease, Mayo Clinic, Rochester, MN, USA.
Purpose Of Review: Critical Care Echocardiography (CCE) is now established as an important tool in the intensive care unit (ICU). This paper aims to examine the expanding role of cardiovascular ultrasound in the ICU, focusing on its applications, benefits, and challenges, while highlighting recent advancements shaping the future of critical care echocardiography.
Recent Findings: Non-invasive echocardiographic measurement of hemodynamic parameters including stroke volume, cardiac output, left ventricular filling pressures, and pulmonary pressures have been well-validated against invasive measurements.
Echocardiography
January 2025
Department of Ultrasound Diagnosis, Gansu Provincial Maternity and Child-Care Hospital (Gansu Provincial Central Hospital), Lanzhou, Gansu, P.R. China.
Objectives: To investigate the clinical value of fetal heart quantification (fetal HQ) in the evaluation of normal fetal heart size, morphology, and cardiac function at different gestational weeks.
Materials And Methods: A total of 101 pregnant women diagnosed with a healthy fetus by fetal echocardiography from September 2021 to December 2023 were selected and classified into four different periods of gestational weeks: 20-28 weeks (25 cases), 29-32 weeks (26 cases), 33-36 weeks (26 cases), and 37-40 weeks (24 cases). Quantitative analyses were performed by automatically tracking the endocardium using fetal HQ software that comes with the Voluson E10 from GE.
Heart
January 2025
Cardiology, University Hospital of Copenhagen, Copenhagen, Denmark.
Acute myocardial infarction-related cardiogenic shock (AMI-CS) is a severe, life-threatening condition characterised by inadequate tissue perfusion due to the heart's inability to pump blood effectively. The pathophysiology of AMI-CS usually arises from the sudden loss of myocardial contractility, leading to a decrease in cardiac output and systemic hypoperfusion. In approximately 90% of AMI-CS cases, the left ventricle is the primary site of dysfunction.
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