View clinical trials related to Bradycardia.
Filter by:At present, cardiac pacing has been widely used in the treatment of bradyarrhythmias and heart failure, which can effectively improve the survival rate of patients. With the rapid development of technology, you can choose to pace the heart in different parts. The atrium can choose the right atrial appendage, the atrial septum and the right ventricular side wall. The right ventricle can choose to be paced in the His bundle, right ventricular apex and ventricular septal outflow tract. The right ventricle can choose the pacing positions including left bundle branch pacing and left ventricular pacing via coronary vein. There are few studies comparing the long-term efficacy and safety of different pacing programs in daily practice. This study is to observe the short-term and long-term effects and safety of different parts of cardiac pacing, and compare the advantages and disadvantages of different parts of cardiac pacing.
In Western countries, every sixth person in their lifetime and 15,000 people in Finland have a new stroke each year. About every fourth stroke is based on cardiac embolism. Atrial fibrillation (AF) is the most common arrhythmia that increases the risk of thromboembolic complications, such as stroke. It may cause formation of thrombi in the left atrium with ensuing embolization in the cerebral and peripheral circulation. AF is often asymptomatic and paroxysmal. Thus, the diagnosis of AF is often challenging. A new onset AF is usually treated with cardioversion (CV), in which the abnormal rhythm is converted back to sinus rhythm (SR). However, a long-lasting AF (>48 hours) is associated with risk of stroke. Therefore, the duration of AF needs to be known before a CV can be performed. This study evaluates the ability of novel customer-targeted heart measuring devices to detect rhythm change and short AF episodes. Moreover, novel biomarkers will be analyzed from the blood samples of AF patients and their suitability to estimate the duration of AF will be evaluated. The research will be accomplished in cooperation with the Kuopio University Hospital Emergency Department, the Heart Center, the Department of Applied Physics of the University of Eastern Finland and Heart2Save Ltd. The results of the research project will be published in the scientific journals of medicine and medical technology and will be presented at scientific conferences of the respective fields. The research results of the project can be utilized by all companies in the medical technology industry, in particular companies that produce ECG measuring instruments and companies that produce rhythm recognition software.
Traditional temporary pacing catheter insertion by intracavitary electrocardiogram (IC-ECG) monitoring which only monitoring tip polar, the negative one. The investigators modified the technique by monitoring both negative and positive polar which will be precisely locating catheter tip and indicating the direction of the catheter tip. Extensively used temporary pacing catheter tip has two electrodes which are about 1 cm apart. Distal electrode is negative (-) and active, proximal electrode is positive (+) and indifferent. Investigators use both distal (-) and proximal (+) electrodes which can be attached to any two of the V leads, record as V(-) and V(+). Monitoring positions of the electrodes by V(-) and V(+) could provide more information about the tip position. Comparing the QRS amplitudes between V(-) and V(+), when catheter tip enters right ventricle chamber: the case of V(-) > V(+) infers tip toward apex ventricle wall ; conversely, the case of V(-)<V(+) indicates tip directs to outflow tract. The investigators hypothesis this monitoring will help precisely placement.
Specialized equipment is required to put pacemakers in the heart. This requires use of radiation to see the wires or leads being implanted in the heart. Repeated radiation use can result in permanent injury to the patient and to the doctor. The investigators aim to investigate if they can use ultrasound to guide and help in the implantation of leads into the heart. Ultrasound is a safe method and requires only a small handheld probe and a small screen to see different structures in the heart. If ultrasounds proves successful as a tool to reduce radiation then this would be very useful technical breakthrough. It would help develop smaller centres where pacemakers can be implanted without purchasing xray equipment and expensive setups.
The purpose of this registry study is to collect information about routine clinical practices with device implantation to treat bradycardia and cardiac systolic dysfunction (heart rhythm disorders) across global centers of excellence in cardiac pacing. In particular, this study will examine the use of conduction system pacing (CSP) in clinical practice. Information collected in the registry will help researchers better characterize strengths and limitations of current technology and treatments.
The aim of this study is to evaluate mechanical and electrical cardiac dyssynchrony in patients with pacemakers and the right ventricular electrode implanted in His Bundle area.
This investigation will evaluate the effect of RV pacing lead position on cardiac function and the modulation of the autonomic nervous system with Cardiac Neuromodulation Therapy (CNT) pacing signals. The study will be performed acutely prior to a pacemaker implant.
Observation study monitoring vital signs and anesthetic variables particularly heart rate during prospective, ocular manipulation and specifically uniform tension on extra ocular muscles during strabismus surgery. *IRB approval from 1992 covered in letter from then IRB chair Dr. Judith Whitcomb, Anchorage, Alaska (letter 10/2020).*
Syncope is a common symptom that may be related to a conductive disorder. If no bradycardia is authenticated, it is often necessary to implant an implantable loop recorder. In somes cases, implantable loop recorder records cardiac conductive disorders. In this study, we want to try to identify a group of patients for whom we could immediately implant a pacemaker without prior implantation of an implantable loop recorder given the high probability of implantation of a pacemaker after interrogation of the implantable loop recorder. It would be interesting for the reduction of interventions for the patients and for the economic aspect of the healthcare system
This registry is performed for the long-term assessment of outcome, performance and residual safety aspects of the BIOMONITOR III and possible successors in a real-life clinical set-up. In addition, this registry is set up in a way that it may also be used as a platform for submodules to investigate additional scientific and regulatory aspects while minimizing the additional effort for the investigational sites and patients.