View clinical trials related to Cardiac Arrhythmia.
Filter by:If a surgical sponge is mistakenly left inside a patient's body after a surgical procedure, it can cause a serious infection. To prevent this from happening, a new device has been developed that uses radiofrequency (RF) signals to detect the presence of surgical sponges inside the body. The device is now being used routinely to make sure that no sponges are left inside a patient at the end of an operation. However, the RF device has not been implemented in procedures for patients with cardiac implantable electronic devices (CIEDs). While the device is FDA approved for use, there is a theoretical concern that the radiofrequency signals used to detect the sponges will change the settings on the pacemaker or the defibrillator. Changing the settings on a pacemaker might make it pace the heart too quickly or too slowly, while changing the settings on a defibrillator might cause unnecessary shocks or prevent it from shocking the heart if the patient were to have cardiac arrest. The purpose of this study is to test whether the radiofrequency device used to detect sponges can cause a clinically significant change to the settings on pacemakers and defibrillators. To minimize potential risk, the device will be tested only on patients who are having the pacemaker or defibrillator removed or replaced as part of their regular medical care, either because it is infected or because the battery has worn out. Before the pacemaker or defibrillator is removed, the settings will be carefully and completely recorded and the radiofrequency device will be used to scan the body for sponges as it would be done during normal operation. After the pacemaker or defibrillator is taken out, the settings will again be recorded and compared to the settings before the scan. In a standard device removal procedure, no clinically significant change in CIED settings would be expected. If a new pacemaker or defibrillator is implanted in the patient, it will not be exposed to the detection device at all. We will also test whether the RF device has any effect on temporary pacemakers that patients may receive after open heart surgery. We plan to perform testing in a total of 50 patients, 40 with permanent pacemakers or defibrillators and 10 with temporary pacemakers.
The purpose of this study is to validate a novel method of diagnosing arrhythmias using the NAVA catheter-positioning screen in patients who have a NAVA catheter in place.
People with chronic diseases such as diabetes, hypertension (high blood pressure) and cardiac (heart) arrhythmias tend to go to the doctor more often and have more tests done than those without those diseases. This can lead to increasing costs of healthcare and extra visits to doctors and healthcare facilities. There are now medical devices that can be used at home to monitor blood sugar, blood pressure, heart rhythms as well as other measurements. There have been some studies which show that when people take their own health readings, they are better able to control their disease, stay healthier and go to the doctor less often. In order to participate in the study participants will have been diagnosed with 1 or more of the following: Diabetes, Hypertension, Cardiac Arrhythmias. This study is designed to test those devices and see if they can help participants stay healthier through the recording and tracking of health measurements. Investigators will also be testing how easy it is to use these devices and whether or how easy it is to fit them in their daily schedule. Participants will be given an iPhone for use during the study and their recordings will be stored and displayed on the phone.
Systemic sclerosis is an orphan, multiorgan disease affecting the connective tissue of the skin and all internal organs. Cardiac involvement, mainly characterised by small intramyocardial coronary artery involvement and myocardial fibrosis, can cause the development of impaired diastolic ventricular filling, cardiac blocks and ventricular arrhythmias, and can ensue in congestive heart failure and sudden death. Until now, no drug has been proven to have a therapeutic effect on SSc myocardial disease on an evidence-based level. Short-term trials and retrospective studies have suggested a favourable and protective effect of calcium channel blockers and angiotensin converting enzyme inhibitors in patients with myocardial involvement. However, no data are presently available on the prevention and treatment of severe heart disease. This observational trial is part of the collaborative project "DeSScipher", one out of five observational trials to decipher the optimal management of systemic sclerosis. Aim of this observational trial is to assess the efficacy and safety of calcium channel blockers and angiotensin converting enzyme inhibitors in asymptomatic SSc patients with cardiac involvement.
The Olympus ScopeGuide® is a useful tool in speeding up colonoscopy and making it less painful for patients. It is currently contraindicated by the manufacturer for use with patients with implantable electronic devices (such as cardiac pacemakers). There is no evidence to back up this contraindication and with the number of pacemakers being inserted increasing by around 30 000 annually in the UK, more patients will be denied the use of this device should they require a colonoscopy. Participants with Pacemakers or Implantable Cardioverter Defibrillators will attend their check appointment. Following this they will be asked to lie with a colonoscope connected to the ScopeGuide® placed onto their abdomen (with clothes on) for 2 minutes. During this time they will be monitored for any irregular cardiac activity which may indicate electromagnetic interference. After this a second device check will occur and the participant will be sent home. The hypothesis is that the ScopeGuide will not interfere with the cardiac devices.
The objective is to investigate the effect of a comprehensive sexual rehabilitation program, consisting of a psycho-educative component and a physical exercise component. The primary hypothesis is that, a comprehensive sexual rehabilitation program improves sexual function.
In this pilot study the investigators will perform a double-blind randomized trial of intranasal oxytocin on measures of cardiac refractoriness, among individuals who are undergoing clinically indicated catheter ablation procedures for paroxysmal atrial fibrillation. The investigators seek to enroll 20 patients for this study, for the purpose of estimating effect sizes for a larger future study.
A multicentre, prospective observational study to develop, evaluate and validate Patient Reported Outcome Measures (PROMs) for patients treated with cardiac ablation for symptomatic cardiac arrhythmias
Cardiac ablation is an invasive procedure requiring anesthetic support for immobility and analgesia. Benzodiazepines and opioids are the most commonly used agents, while they are associated with respiratory depression and hypotension. The aim of this study was to compare the effect of remifentanil and dexmedetomidine, which exerts sedative and analgesic effect without serious respiratory depression, with conventional midazolam/remifentanil combination on sedative and analgesic levels in patients undergoing endocardial ablation.
The number of active electrical cardiac implants such as internal cardioverter defibrillators (ICDs), pacemakers or cardiac contractility modules (CCM) has significantly risen over the last two decades. This has been paralleled by an increase in the number of sources of electromagnetic fields in daily life and occupational circumstances. To date it remains unclear whether patients are at risk of device failure when being subjected to these fields. There are currently no general guidelines available to help clinicians informing their patients about safety levels and behavior around these electromagnetic fields. This study aims to identify the thresholds of safe use of these devices and potential failures under worst-case conditions in 50/60 Hz fields (i.e. power line frequency). Device implanted patients will be exposed to electric, magnetic and combined fields of different intensity at various device programming (e.g. nominal and maximum sensitivity). The results will show whether patients are safe in public or occupational environments, which medical relevant disturbances can occur and if a correlation exists between disturbances and device type or patients physique.