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| http://dx.doi.org/10.24875/ACM.22000229 | DOI Listing |
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Differentiating Apical and Basal Left Ventricular Aneurysms Using Sphericity Index: A Clinical Study.
Medicina (Kaunas)
January 2025
Cardiovascular Institute ''Dedinje'', 11040 Belgrade, Serbia.
: Left ventricular aneurysm (LVA) causes geometric changes, including reduced systolic function and a more spherical shape, which is quantified by the sphericity index (SI), the ratio of the short to long axis in the apical four-chamber view. This study aimed to assess SI's value in A-LVA and B-LVA, identify influencing factors, and evaluate its clinical relevance. : This clinical study included 54 patients with post-infarction LVA and used echocardiography to determine LVA locations (A-LVA near the apex and B-LVA in the basal segments), with SI and other echocardiographic measures assessed in both systole and diastole for the entire cohort and stratified by A-LVA and B-LVA groups.
View Article and Find Full Text PDFUltrastructural Remodeling of Cardiomyocytes in Postinfarction Myocardium of Rats in the Late Stages of the Disease.
Cytometry A
December 2024
Laboratory of Hyperspectral Imaging of Surgical Targets, Center of Excellence, L.A. Orbeli Institute of Physiology, National Academy of Sciences, Yerevan, Armenia.
Identifying factors that contribute to the transition to the dilated phase in cardiac ischemia is a critical challenge in heart failure treatment. Currently, no effective therapies exist for this ischemic complication, and the mechanisms driving left ventricular dilatation during chronic post-infarction remodeling remain poorly understood. One potential pathological process leading to ventricular dilatation involves specific compensatory rearrangements in the border zone adjacent to the infarct, which isolates the intact myocardium from inflammation at the scar edge.
View Article and Find Full Text PDFGeometric reconstruction of the left ventricle on a beating heart through a minimally invasive approach from the left anterolateral thoracotomy: case report.
Front Cardiovasc Med
December 2024
Bakulev Scientific Center for Cardiovascular Surgery, Moscow, Russia.
Despite the widespread use of mini-invasive treatment methods in cardiac surgery, their use in post-infarction myocardial aneurysms of the left ventricle is not of frequent occurrence. In this clinical case, we used left anterolateral thoracotomy and "eating heart" technique to correct the post-infarction left ventricle aneurysm with ventricular thrombosis using the Dor method in a 66-year-old patient. This technique created opportunity to perform safely and effective the planned reconstruction of the left ventricle with less trauma, as well as to ease the postoperative course and recovery of the patient, reduce hospitalization time.
View Article and Find Full Text PDF[Construction of a prediction model of ultrasound indicators for mortality risk within 7 days in patients with acute myocardial infarction and ventricular septal rupture].
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
November 2024
Department of Cardiology, Xiangya Third Hospital, Central South University, Changsha 410000, Hunan, China. Corresponding author: Feng Wenchang, Email:
Objective: To investigate the risk factors of death within 7 days in patients with acute myocardial infarction (AMI) complicated by ventricular septal rupture (VSR) based on echocardiography indicators, and to construct a nomogram model of ultrasound indicator risk to predict the risk of death in patients with post-infarction ventricular septal rupture (PIVSR).
Methods: The echocardiographic data of 40 patients with PIVSR admitted to the department of cardiology, Xiangya Third Hospital, Central South University from January 2014 to June 2024 were retrospectively analyzed. The patients were divided into death group and survival group based on their 7-day survival status.
Exploring cardiac vector propagation in acute myocardial infarction: a spatial velocity perspective.
Future Cardiol
January 2025
Department of Physiology, Institute of Postgraduate Medical Education & Research-SSKM Hospital, Kolkata, India.
Aims: To objectively characterize the spatial-velocity dynamics of the QRS-loop in the vectorcardiogram (VCG) of patients with acute myocardial infarction (AMI).
Methods: VCG was constructed as a space curve directly with three quasi-orthogonal leads I, aVF and V2 recorded by conventional ECG of 25 healthy individuals and 50 AMI patients. Spatial velocity (SV) of the dynamic QRS loop, spatial distance (SD), and spatial magnitude (SM) were recorded, along with axis-specific component attributes of vector magnitude such as ΔX, ΔY, and ΔZ.
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