Stress cardiomyopathy (SCM) is a syndrome characterized by transient regional systolic dysfunction of the left ventricle in the absence of angiographic evidence of coronaropathy. This abnormality is associated with high levels of catecholamines. Stress cardiomyopathy is also called Takotsubo (TS) cardiomyopathy. Pheochromocytoma crisis can occur spontaneously or can be precipitated by manipulation of the tumor, trauma, certain medications or stress for example during non-adrenal surgery. The main drugs leading to pheochromocytoma crisis include D2 dopamine receptor antagonists, noncardioselective β-adrenergic receptor blockers, tricyclic antidepressants and related neurotransmitter uptake blockers, sympathomimetics, certain peptide and steroid hormones and several agents used during induction of anesthesia. Patients can develop symptoms of heart failure associated with tachyarrhythmia, cardiogenic shock with hypotension and collapse, or apparent acute coronary syndromes. This review describes pathophysiology, epidemiology, diagnosis criteria and management of SCM.
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http://dx.doi.org/10.1016/j.ando.2020.03.011 | DOI Listing |
This case emphasizes the rare occurrence of Takotsubo cardiomyopathy (TTC) in a patient with moderate coronary artery disease (CAD), highlighting the complexity of diagnosis and management. Clinicians should maintain a high index of suspicion for TTC in patients with CAD, especially when echocardiographic findings suggest apical ballooning. Balancing therapies for both conditions is essential.
View Article and Find Full Text PDFWorld J Cardiol
December 2024
Department of Biochemistry, School of Medicine, College of Medicine, China Medical University, Taichung 404328, Taiwan.
This article addresses the substantial findings of a study on sodium-dependent glucose transporter 2 inhibitors (SGLT2is) and their effects on myocardial function in patients with type 2 diabetes and asymptomatic heart failure. The editorial explores the broader implications of the study findings for clinical practice, thus highlighting the pivotal role of SGLT2is in improving cardiac function, reducing oxidative stress, and attenuating inflammation. It emphasizes the importance of early intervention with SGLT2is in preventing the progression of diabetic cardiomyopathy; hence, these inhibitors have the potential to transform the management of asymptomatic heart failure in patients with diabetes.
View Article and Find Full Text PDFFree Radic Biol Med
December 2024
Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China. Electronic address:
Background: Lipotoxicity is a significant factor in the pathogenesis of diabetic cardiomyopathy (DbCM), a condition characterized by mitochondrial fragmentation and pyroptosis. Mitochondrial fission protein 1 (FIS1) plays a role in mitochondrial fission by anchoring dynamin-related protein 1 (DRP1). However, the specific contribution of FIS1 to DbCM remains unclear.
View Article and Find Full Text PDFJ Mol Med (Berl)
December 2024
Department of Medicine, Division of Cardiology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
In one of the earliest reports from China during COVID-19, it was noted that over 20% of patients hospitalized with the disease had significant elevations of troponin, a marker of myocardial tissue damage, that put them at a higher risk. In a hypothesis-independent whole exome sequencing (WES) study in hospitalized COVID-19 patients of diverse ancestry, we observed putative enrichment in pathogenic variants in genes known to be involved in the pathogenesis of cardiomyopathy. This observation led us to hypothesize that the observed high morbidity and mortality in these patients might be due to the presence of rare genetic factors that had previously been silent but became relevant as a consequence of the severe stress inflicted by an infection with SARS-CoV-2.
View Article and Find Full Text PDFMetabolites
December 2024
Division of Metabolic and Cardiovascular Sciences, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA.
Cardiac diseases remain one of the leading causes of death globally, often linked to ischemic conditions that can affect cellular homeostasis and metabolism, which can lead to the development of cardiovascular dysfunction. Considering the effect of ischemic cardiomyopathy on the global population, it is vital to understand the impact of ischemia on cardiac cells and how ischemic conditions change different cellular functions through post-translational modification of cellular proteins. : To understand the cellular function and fine-tuning during stress, we established an ischemia model using neonatal rat ventricular cardiomyocytes.
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