Medicina cardiovascular

A continuación, se enumeran los ensayos clínicos actuales.

Filtra esta lista de estudios por sede, estatus, etc.

1. Angiographic and Psychosocial Evaluation of Peripartum vs. Non Peripartum Spontaneous Coronary Artery Dissection (SCAD

   Rochester, Minn.

   The purpose of this study is to determine differences in clinical and imaging presentation, in-hospital management and prognosis in peri-partum and non-peri-partum SCAD patients.

    

2. A Study of the Effect of Myectomy on the Sudden Cardiac Death Risk in Hypertrophic Cardiomyopathy

   Rochester, Minn.

   The primary purpose/objective of this study is to determine whether myectomy as a management option for severe hypertrophic cardiomyopathy (HCM) reduces the incidence of sudden cardiac death.

3. Prospective Identification of Long QT Syndrome in Fetal Life

   Rochester, Minn.

   The postnatal diagnosis of Long QT Syndrome (LQTS) is suggested by a prolonged QT interval on 12 lead electrocardiogram (ECG),a positive family history and/or characteristic arrhythmias and confirmed by genetic testing.  LQTS testing cannot be performed successfully before birth as   fetal ECG is not possible and direct measure of the fetal QT interval by magnetocardiography is limited. Genetic testing can be performed in utero, but there is risk to the pregnancy and the fetus. Although some fetuses present with arrhythmias easily recognized as LQTS (torsade des pointes (TdP) and/or 2° atrioventricular (AV) block, this is uncommon, occurring in <25% of fetal LQTS cases. Rather, the most common presentation of fetal LQTS is sinus bradycardia, a subtle rhythm disturbance that often is unappreciated to be abnormal. Consequently, the majority of LQTS cases are unsuspected and undiagnosed during fetal life, with dire consequences. For example, maternal medications commonly used during pregnancy can prolong the fetal QT interval and may provoke lethal fetal ventricular arrhythmias. But the most significant consequence is the missed opportunity for primary prevention of life threatening ventricular arrhythmias after birth because the infant is not suspected to have LQTS before birth. The over-arching goal of the study is to overcome the barriers to prenatal detection of LQTS. The investigators plan to do so by developing an algorithm using fetal heart rate (FHR) which will discriminate fetuses with or without LQTS. Immediate Goal: The investigators propose a multicenter pre-birth observational cohort study to develop a Fetal Heart Rate (FHR)/Gestational Age (GA) algorithm from a cohort of fetuses recruited from 13 national and international centers where one parent is known by prior genetic testing to have a mutation in one of the common LQTS genes: potassium voltage-gated channel subfamily Q member 1 (KCNQ1), potassium voltage-gated channel subfamily H member 2 (KCNH2), or sodium voltage-gated channel alpha subunit 5 (SCN5A). The investigators have chosen this population because 1) These mutations are the most common genetic causes of LQTS, and 2) Offspring will have high risk of LQTS as inheritance of these LQTS gene mutations is autosomal dominant. Thus, progeny of parents with a known mutation are at high (50%) risk of having the same parental LQTS mutation. The algorithm will be developed using FHR measured serially throughout pregnancy. All offspring will undergo postnatal genetic testing for the parental mutation as the gold standard for diagnosing the presence or absence of LQTS.

4. Study of Awareness and Detection of Familial Hypercholesterolemia (CASCADE-FH)

   Rochester, Minn.

   The CASCADE Familial Hypercholesterolemia Registry will track therapy, clinical outcomes, and patient-reported outcomes over time aiming to increase familial hypercholesterolemia awareness, promote optimal disease management, and improve outcomes. This study is not recruiting family members of FH patients at this time.

5. Spontaneous Coronary Artery Dissection: Mechanistic Evaluation

   Rochester, Minn.

   The purpose of this study is to screen for unique or characteristic circulating peptides, hormonal biomarkers and circulating mRNA in patients who have experienced spontaneous coronary artery dissection (SCAD).

    

6. Predictive Role of Non-Invasive Glucose Assessment During Pregnancy

   Rochester, Minn.

   This study aims to determine the value of regular, non-invasive [glucose] LabClasp monitoring during pregnancy.

7. Invasive and Noninvasive Assessments of Myocardial Elasticity

   Rochester, Minn.

   The purpose of this study is to assess the correlation between myocardial elasticity (ME) measurements obtained simultaneously during cardiac hemodynamic catheterization and intraprocedural echocardiography.

8. Bioengineered Cardiac Tissue for Hypoplastic Left Heart Syndrome Analysis

   Rochester, Minn.

   The purpose of this study is to produce and characterize patient-specific cardiac tissue for Hypoplastic Left Heart Syndrome (HLHS) using reprogrammed cell technology.

9. Peripheral Nerve Stimulation Therapy for Atrial Fibrillation

   Rochester, Minn.

   The purpose of this study is to determine and compare the safety and efficacy of transcutaneous afferent patterned stimulation (TAPS) and respiratory-gated auricular vagal afferent nerve stimulation (RAVANS) therapies for the reduction of paroxysmal atrial fibrillation (AF) burden.

10. A Study to Assess Non-invasive Arterial Air Plethysmography of Normal and Abnormal Arterial Hemodynamics

    Rochester, Minn.

    The purpose of this study is to determine the accuracy (sensitivity, specificity, negative predictive value, positive predictive value) of a non-invasive arterial air plethysmography prototype in people with normal and abnormal arterial hemodynamics.