View clinical trials related to Takotsubo Cardiomyopathy.
Filter by:Prospective, multicenter, observational registry collecting data from subjects with Tako-Tsubo (stress-induced) cardiomyopathy (TTC). Uniform, complete, and accurate data will be collected on the subject's medical history, during index hospitalization for TTC, and during follow-up. The objectives are to evaluate the prevalence and incidence of cancer in patients with TTC, to document the underlying causes of death during hospital stay and during follow-up, to determine the long-term prognosis, and to identify possible predictors of short and long-term mortality.
The investigators' hypothesis is that patients with apical ballooning syndrome (ABS) will manifest a personality profile that differs than that of a population of similar range of ethnic and socioeconomic status.
Stress (tako-tsubo) cardiomyopathy (SC) is a rapidly reversible form of acute heart failure reported to be triggered by stressful events and associated with a distinctive left ventricular (LV) contraction pattern. SC mimics acute coronary syndrome and is accompanied by reversible left ventricular apical ballooning in the absence of angiographically significant coronary artery stenosis. sympathetic activity dysfunction appears to play a very important role in the pathophysiology of takotsubo cardiomyopathy. In most cases, myocardial scintillography with 123Imetaiodobenzylguanidine (MIBG) showed altered captation of the radiotracer in several heart segments. In particular, the apical myocardium has poor sympathetic innervations and an uptake reduction in MIBG tracer. A hypothesis for this finding could be that the intense discharge of adrenalin, acting on heart segment with different and abnormal innervation, may produce a transient heart failure characterized by a particular shape of the left ventricle. While studies have shown that heterogeneous MIBG distribution, decreased MIBG uptake and increased norepinephrine content were completely prevented by α-lipoic acid or by L-acetyl carnitine administrations in diabetic cardiomyopathy, no studies have examined the effects of these therapies on tako-tsubo cardiomyopathy. On this basis, the investigators study will evaluate whether the dysfunction of adrenergic cardiac innervation, evaluated by MIBG, persist after previous experience of transient stress-induced cardiac dysfunction. Moreover, the investigators will assess whether the medications that restore sympatho-vagal alterations in diabetic cardiomyopathy, such as α-lipoic acid and L-acetyl carnitine, will improve the adrenergic cardiac innervation, in patients with SC.
This is a case-control association study with multicentric prospective recruitment. Tako-TSUBO cardiomyopathy is a new clinical entity mimicking an acute coronary syndrome. It is characterized by reversible left ventricular dysfunction that is frequently precipitated by a stressful event and most of patients are postmenopausal women. Several hypotheses concerning pathogenesis of Tako-TSUBO cardiomyopathy have been proposed, but at present, exaggerated sympathetic stimulation is the main hypothesis. However, the investigators don't know why some patients with stressful event may present Tako-TSUBO cardiomyopathy whereas most of them don't. The investigators hypothesize that polymorphisms in the genes involved in the adrenergic pathway resulting in greater catecholamine sensitivity would be associated with an increased risk of Tako-TSUBO cardiomyopathy.
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.
Tako Tsubo syndrome (TTS) is characterized by the occurrence in the context of mental or physical stress, a clinical and ECG of acute myocardial infarction without significant coronary artery stenosis, accompanied by a disorder Acute, reversible left ventricular who takes on a characteristic apical ballonnisation evoking the image of a Japanese octopus trap called Tako (octopus) tsubo (jar). Pathophysiology of unknown changes immediate life-threatening prognosis is often good in the longer term.
The aim of this prospective single-center study is to evaluate endothelial function, arterial compliance, sympathetic nervous activity at rest and after mental and physical stress, carotid atherosclerosis, oxidative stress parameters, quality of life and platelet adhesion in patients with apical ballooning syndrome and age-matched controls.
Transient left ventricular ballooning syndrome (TLVBS) is a cardiac syndrome that is characterised by acute but transient left ventricular (LV) dysfunction. Since the syndrome clearly is not a rare phenomenon and since prognosis is not as benign as originally thought, there is a need for further research into the etiology and pathophysiology of TLVBS. Therefore the investigators aim to study the microvascular and endothelial function in their population of TLVBS patients.
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.
The aim of this study is to measure how different people respond to mental stress. The investigators will measure if there are differences in cardiovascular responses to mental stress among different groups of subjects. In one part of the study the investigators will compare the cardiovascular responses to mental stress between healthy women and healthy men. In another part of the study, the investigators will compare the cardiovascular responses to mental stress between women with apical ballooning syndrome and healthy post-menopausal women. The investigators hypothesize that healthy men will have an increased vascular response to and decreased endothelial function in response to to mental stress, compared to health women. Furthermore, the investigators hypothesize that women with apical ballooning syndrome will have an increased vascular response to and decreased endothelial function in response to mental stress.