6 Clinical Trials for Various Conditions
The study hypothesis is that participants enrolled in a virtual Takotsubo support group will have significantly less anxiety at one year.
The goals of this study are as follows: 1. To rigorously establish and characterize heterogeneity in the pathophysiology of Takotsubo Syndrome (TS). 2. To rigorously test the contribution of TS triggering events and mental stress responsiveness to 1-year prognosis after TS event.
The Cedars-Sinai SHI Takotsubo Registry and Proteomic Study is an observational registry that will collect retrospective and prospective demographic, clinical, hemodynamic, laboratory and other diagnostic parameters, therapy and outcome data from individuals who meet the inclusion/exclusion criteria of Takotsubo Registry protocol. Subjects will also be invited to provide a blood sample utilizing a Mitra kit sent to their homes. Researchers from the Barbra Streisand Women's Heart Center will analyze Registry data to identify Takotsubo phenotypes, improve diagnostic capabilities, better predict recurrence rates, and develop targeted Takotsubo treatments.
Takotsubo syndrome is a condition which mimics acute myocardial infarction, and is diagnosed in 1.5% to 2.2% of patients referred to hospital with suspected acute coronary syndrome. It is also known as broken heart syndrome, takotsubo cardiomyopathy, stress cardiomyopathy and apical ballooning cardiomyopathy, among other names. The pathogenesis of this disorder is not well understood. Possible mechanisms include catecholamine excess, coronary artery spasm, microvascular dysfunction, among others. This is a multicenter, nation-wide, observational study of patients who were previously diagnosed with takotsubo syndrome. The investigators aim to use this registry to help plan and carry out further studies and to improve understanding of the pathophysiologic mechanisms of this syndrome. In addition participants will be followed for events, and to monitor quality of life and stress.
Objective: The objective of this pilot study is to characterize the cardiac uptake patterns of I-123 mIBG in stress-induced (Takotsubo's) cardiomyopathy. Hypothesis: Perturbations in sympathetic innervation are the underlying pathogenesis of stress induced cardiomyopathy and will result in abnormalities in I-123 mIBG cardiac imaging. Thus, planar and SPECT I-123 MIBG imaging will provide insight into the pathogenesis of stress-induced cardiomyopathy, and may lead to the development of more specific diagnostic criteria. Study design: This proposal is for a prospective pilot study to characterize perturbations in cardiac sympathetic innervation in patients with stress induced cardiomyopathy by performing planar and SPECT I-123 MIBG imaging during the acute presentation and after recovery of LV function.
Stress (Takotsubo) cardiomyopathy (SC) is a peculiar form of acute, reversible myocardial dysfunction predominantly affecting the apical and mid left ventricular segments. In this institution over the last two to three years the investigators have identified more than a dozen patients with stress cardiomyopathy. The investigators' overarching goal is to characterize these individuals with the hope of identifying risk factors and developing strategies to prevent the occurrence of SC in situations where the likelihood in susceptible individuals may be high.