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Tachycardia-Induced Cardiomyopathy Following Prolonged Ritodrine Infusion During Pregnancy: A Case Report.
Cureus
December 2024
Department of Obstetrics and Gynecology, Sakakibara Heart Institute, Fuchu, JPN.
Preterm birth remains a leading cause of neurodevelopmental disability in offspring, prompting various preventive measures. However, controversies persist surrounding these approaches, particularly regarding beta-mimetic drugs. In Japan, it remains a concerning reality that ritodrine infusion continues to be used for long-term tocolysis in preterm labor, despite the warning issued by the US Food and Drug Administration.
View Article and Find Full Text PDFLoad Dependency of Ventricular Pump Function: Impact on the Non-Invasive Evaluation of the Severity and the Prognostic Relevance of Myocardial Dysfunction.
Rev Cardiovasc Med
August 2024
German Centre for Heart and Circulatory Research (DZHK), Partner Site Berlin, 10785 Berlin, Germany.
Ventricular pump function, which is determined by myocyte contractility, preload and afterload, and, additionally, also significantly influenced by heart rhythm, synchrony of intraventricular contraction and ventricular interdependence, explains the difficulties in establishing the contribution of myocardial contractile dysfunction to the development and progression of heart failure. Estimating myocardial contractility is one of the most difficult challenges because the most commonly used clinical measurements of cardiac performance cannot differentiate contractility changes from alterations in ventricular loading conditions. Under both physiological and pathological conditions, there is also a permanent complex interaction between myocardial contractility, ventricular anatomy and hemodynamic loading conditions.
View Article and Find Full Text PDFRecurrent ventricular tachycardia in a patient with A19D mutation-associated hereditary transthyretin amyloidosis: a case report.
Eur Heart J Case Rep
June 2024
Department of Cardiology, Centre Hospitalier Universitaire Rennes, Pontchaillou Hospital, 2 rue Henri le Guillloux, Rennes 35000, France.
Background: Previous literature suggests that patients with transthyretin amyloidosis (ATTR) experience a high burden of ventricular arrhythmias. Despite this evidence, optimal strategies for arrhythmia prevention and treatment remain subject to debate.
Case Summary: We report the case of a patient with hereditary ATTR cardiomyopathy who developed recurrent ventricular tachycardia prior to a decline in his left ventricular ejection fraction (LVEF).
Periprocedural acute haemodynamic decompensation during substrate-based ablation of scar-related ventricular tachycardia: a rare and unpredictable event.
Europace
June 2024
Institute for Clinical and Experimental Medicine, Vídeňská 1958/9 Prague 140 21, Czechia.
Aims: Patients with structural heart disease (SHD) undergoing catheter ablation (CA) for ventricular tachycardia (VT) are at considerable risk of periprocedural complications, including acute haemodynamic decompensation (AHD). The PAINESD score was proposed to predict the risk of AHD. The goal of this study was to validate the PAINESD score using the retrospective analysis of data from a large-volume heart centre.
View Article and Find Full Text PDFRenal dysfunction is a time-varying risk predictor of sudden cardiac death in heart failure.
ESC Heart Fail
October 2024
Department of Cardiology, Fujita Health University School of Medicine, Toyoake, Japan.
Aims: Sudden cardiac death (SCD) is a common mode of death in patients with congestive heart failure (CHF). Implantable cardioverter defibrillator (ICD) implantation is established treatment for SCD prevention, but current eligibility criteria based on left ventricular ejection fraction (LVEF) and New York Heart Association (NYHA) functional class may be due for reconsideration given the increasing effectiveness of pharmacological therapy. We sought to reconsider the risk stratification of SCD in patients with symptomatic CHF.
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