Detection of Phrenic Nerve Stimulation Using Sensors' Signals
Heart FailureThe purpose of this study is to collect sensor data from patients with implanted cardiac resynchronization devices who exhibit phrenic nerve stimulation.
SUrvey of Guideline Adherence for Treatment of Systolic Heart Failure in Real World
Heart FailureCongestiveThe purpose of this study is to survey the guideline compliance of the cardiologists in the treatment of systolic heart failure in Korea
Self-management and Cognitive Function in Adults With Heart Failure
Cognitive ImpairmentCardiac Disease1 moreThe purpose of this study is to assess the relationship between cognitive impairment, patient self-management, health, and health service use in adults with heart failure (NYHA Class 2 and 3). The research questions are: How is cognitive impairment (memory, attention, global and executive function) related to various aspects of impaired self-management (knowledge of adherence, adherence to sodium restriction and medications, symptom monitoring of weight changes, and decision and action to seek care)? How are these relationships altered when adjusting for medical, demographic, and psychosocial factors? What are the relationships among degree of cognitive impairment, quality self-management, health status, and health service use?
BREATHE Registry - I Brazilian Registry of Heart Failure
Heart FailureThe purpose of this study is to evaluate the demographic, clinical, prognostics characteristics of 1,200 patients admitted with clinical diagnosis of decompensate heart failure in a group of 60 hospitals representative in different regions.
LifeVest Trends Validation Protocol
Heart FailureThis study will evaluate the accuracy of data on body position, daily activity, heart rate, 6-minute walk test, and a health survey collected by the wearable cardioverter defibrillator (WCD).
Prospective Study of Heart Failure With Preserved Left Ventricular Ejection Fraction
Congestive Heart FailureLeft Ventricular Ejection Fraction1 moreThe purpose of this study is to examine electrical and echocardiographic characteristics and prognosis of consecutive patients admitted with acute heart failure and diagnosed to have heart failure with preserved ejection fraction (HFPEF).
Relationship Between Abnormalities of Desmin Cytoskeleton, Mitochondrial Activity and Expression...
Dilated CardiomyopathyThe purpose of this study is evaluation of expression of desmin in cardiomyocytes of patients with idiopathic dilated cardiomyopathy. Analysis of relationship between desmin expression and activities of mitochondrium and expression of ubiquitin.
Data Collection Study of Wedge Pressure Data in Patients With CRT-D Devices
Heart FailurezWedge is a clinical feasibility IDE study. The objective is to characterize the relationship between intra-thoracic impedance measurements obtained from a CRT-D device and pulmonary capillary wedge pressure (PCWP) measured via a right heart catheterization (RHC) acutely and over time.
Model 4196 Left Ventricular (LV) Lead Chronic Performance Study
Heart FailureThe purpose of this study is to evaluate long-term performance of the 4196 LV Lead. This evaluation is based on the number of lead-related complications occurring during the study compared to the number of leads enrolled in the study. The leads will be followed for 5 years after implant. This study is required by FDA as a condition of approval of the Model 4196 LV Lead and is integrated within the Product Surveillance Registry (PAN Registry).
Monitoring Pulmonary Artery Pressure by Implantable Device Responding to Ultrasonic Signal (PAPIRUS...
Heart FailureThe PAPIRUS III study will continue to follow patients initially enrolled in PAPIRUS II. Pressure readings from the investigational device will continue to be collected and will be correlated to physiological changes during activities of daily living and protocol defined tests.