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Active clinical trials for "Arrhythmias, Cardiac"

Results 591-600 of 689

Stanford Cardiac Invasive Electrophysiology Novel Computer Experience

Atrial FibrillationAtrial Tachycardia3 more

This study will test the ability of computer algorithms to predict successful ablation therapy for atrial arrhythmias.

Completed4 enrollment criteria

Surface Electrocardiogram (ECG) Signal Recording for Implantable Subcutaneous String Defibrillator...

ArrhythmiaCardiac

Record cutaneous Electrocardiogram (ECG) data from positions corresponding to the expected subcutaneous locations of the Implantable Subcutaneous String Defibrillator (ISSD) using existing, approved ECG recording devices.

Completed4 enrollment criteria

Acute Coronary Syndrome in Diabetic Patients

Acute Coronary SyndromeDiabetes Mellitus3 more

This study aims to compare the clinical profile and outcomes of acute coronary syndrome patients with diabetes and without diabetes.

Completed4 enrollment criteria

Validation of a Smartphone-based Recorder for Detection of Cardiac Arrhythmias

Cardiac Arrhythmia

The investigators will evaluate the diagnostic yield of the new AliveCor device versus a 12 lead ECG when used simultaneously to detect cardiac arrhythmia

Unknown status5 enrollment criteria

Vektor vMap™ Clinical Validation Study

Cardiac ArrhythmiaAtrial Fibrillation6 more

This is a retrospective, multi center clinical study collecting existing, de-identified subject data from medical records to be analyzed using an independent core laboratory to validate performance of a computational ECG mapping system (vMap™).

Completed16 enrollment criteria

The Effect of General Anesthesia on the Risk for Arrhythmia

Arrhythmia

Polymorphic ventricular tachycardia, known as Torsades de Pointes (TdP), is a specific form of ventricular arrhythmia with a characteristic twist of the QRS complex around the isoelectric baseline. TdP can degenerate into ventricular defibrillation followed by sudden cardiac death. A predictor for the development of TdP is the length of the QT interval measured on an EKG recording. The QT interval is known to be prolonged by many medications used in a perioperative setting as well as by other conditions such as hypothermia and electrolyte imbalance. General anesthesia exposes most of the investigators patients to a combination of several of those medications and conditions and therefore might increase the risk for the development of QT prolongation. Moreover, patient related risk factors are well known and aggravate the individual risk for potential life threatening TdP events when exposed to QT prolonging medications perioperatively. Previous research suggests that more than 20% of the patients might develop QT prolongations perioperatively and are consequently on an increased risk for TdP; yet, no study has systematically investigated the magnitude of the problem and associated risk factors. The proposed pilot study is designed as a prospective observational cohort study to investigate the QT interval before, during and after general anesthesia. It aims to determine the incidence of perioperative QT prolongations. A customary long term EKG recording device will be connected to a random sample of patients undergoing general anesthesia. Using these continuous EKG tracings, the lengths of the QT interval will be analyzed during the perioperative period.

Completed10 enrollment criteria

Japanese Assessment of Indication Based Programming

Heart FailureArrhythmias1 more

The purpose of this clinical investigation is to assess the programming behavior of the physicians in the patient cohort. Furthermore, the acceptance level of specific programming recommendations based on the patient's clinical needs and primary indications will be evaluated by comparing parameters determined by the feature IBP to daily life programming chosen by physicians.

Completed9 enrollment criteria

Arrhythmias in Myotonic Muscular Dystrophy

Muscular DystrophyArrhythmia1 more

Adult myotonic muscular dystrophy (Steinert's disease) is the most common inherited neuromuscular disorder. Cardiac rhythm disturbances occur frequently in this disease state and may be responsible for up to one-third of deaths. In this study, we intend to evaluate the utility of non-invasive electrocardiographic screening methods and history in predicting serious arrhythmic events.

Completed6 enrollment criteria

Evaluating the Risk of Serious Ventricular Arrhythmia and Sudden Cardiac Death Among Users of Domperidone...

ArrhythmiasCardiac

The purpose of this retrospective observational study is to obtain information to confirm or contradict the results of prior studies on domperidone and sudden cardiac death. The population studied are the Saskatchewan residents who used domperidone or another type of medication known as a Proton Pump Inhibitor (PPI) between 1990 and 2005. Information will be collected from various sources including the Saskatchewan Health (SH) database and Cancer Registry.

Completed2 enrollment criteria

EVALECGcardio Study

Cardiac Arrhythmia

ECGs are routinely performed in cardiology. Recently handheld ECGs have shown promise in screening for heart rhythm disorders. These are quick to perform and do not require the preparation that is needed for 12 lead ECGs. We wanted to test whether a novel handheld ECG recorder, Kardia 6L, which has the potential to record a 6 lead ECG is able to screen for ECG abnormalities, thereby obviating the need for a full 12 lead ECG. This may allow for earlier diagnosis and treatment.

Unknown status2 enrollment criteria
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