View clinical trials related to Tachycardia.
Filter by:The purpose of this study was to explore the safety and efficacy of a Pulsed Field Ablation Device and Force Sensing Pulsed Field Ablation Catheter in the treatment of Paroxysmal Supraventricular Tachycardia.
The study aims to investigate the safety, tolerability, efficacy, pharmacodynamics (PD), pharmacokinetics (PK), and immunogenicity of efgartigimod compared to placebo in participants with post-COVID-19 postural orthostatic tachycardia syndrome (POTS) (post-COVID-19 POTS).
Vistag SurPoint is a proprietary module that generates a numerical tag index which can be used as multiparametric lesion quality marker to guide ablation in the clinical setting for ablation of atrial arrhythmias. SurPoint tag index has studied to guide ablation of ventricular arrhythmias, such as premature ventricular complexes, but its effectiveness and safety for ablation of Ventricular Tachycardia in patient with Ischemic and Non-Ischemic Cardiomyopathies is not well established. In this single center prospective observation registry, a ventricular ablation strategy utilizing radiofrequency delivery duration cut off determined by a maximum Surpoint index value of 550 will be compared to conventional operator determined duration of radiofrequency delivery based on combination of time (i.e. 30, 60, 90, and 120 seconds), magnitude of impedance drop, attenuation of abnormal electrograms, and achieving non-capture with high-output pacing after ablation. The Surpoint Tag Index Ablation group will be matched with a control group of patients undergoing VT ablation using the conventional time-based radiofrequency strategy and the patients in this group will be selected using propensity matching based on relevant baseline patient and clinical characteristic variables. Primary outcomes of interest: Recurrence of sustained ventricular tachycardia or Internal Cardiac Defibrillator Therapy. Secondary outcomes of interest: Hospitalization for ventricular tachycardia, repeat ablation procedures, all-cause mortality, acute procedural complications, rate of steam pops during ablation procedures Follow up: Up to 24 months after ablation procedure. Follow up will be obtained by office visits and device interrogation reports.
to study the prophylactic effect of magnesium sulfate , dexmedetomidine or their combination in reduction the incidence of JETS postoperative
Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common supraventricular tachycardia inducible during an electrophysiological study. Although ablative therapy proved to be the treatment of choice, little is known about the components of the tachycardia circuit. The aim of this study is to detect the presence and patterns of specific electrograms representing slow pathway (SP) potentials and to explore Koch's triangle pattern activation during sinus rhythm and/or atrial extraestimulus with a high-density mapping catheter in an attempt to clarify a fast and safety catheter ablation strategy. We hypothesized that, in patients with dual atrioventricular nodal physiology, during sinus rhythm (SR), high-density mapping (HDM) catheters could identify the SP signals, making possible to delineate small areas of slow conduction associated to abnormal electrograms on Koch's triangle. On a second step, radiofrequency (RF) applications safety guided by the HDM obtained with this method, should interrupt the circuit far from the His region. Finally, SP signals should disappear after the RF procedure when performing a new 3D HDM. A control group of patients without AVN dual physiology should show absence of fragmented/slow conduction zones.
Postural orthostatic tachycardia syndrome (POTS) is a chronic, multifactorial syndrome with complex symptoms of orthostatic intolerance. Of the major complaints are breathlessness and exercise intolerance. The aim is to explore the potential impact of a physiotherapy intervention involving education and breathing control on dysfunctional breathing and improving exercise intolerance in POTS. The study would be a randomised controlled trial. Duration would be 4 week. Patients will be randomly divided into two groups by lottery method. Data will be collected through questionnaire from enrolled subjects in physical therapy department of Liaqat Hospital, Lahore. Experimental group will be treated by Progressive Breathing Retraining Exercise Program-2 times a day for 15 minutes, initially Controlled Nasal Breathing with progressively increasing the Controlled Pause, 4 times a day for 15 minutes, then both techniques will be performed together. In addition to this Aerobic training will be assigned to both the groups. Aerobic training will include cycling and treadmill- for 30 minutes\day for 5 days\week for 1 month. Total 20 sessions. While the controlled group will receive only aerobic training which will include cycling and treadmill for 30 minutes\day for 5 days\week for 1 month. Total 20 sessions. The dysfunctional breathing and exercise intolerance will be assessed through Nijmegen Questionnaire and Veterans Questionnaire respectively at 0 week, after 2 week and after 4 week. The data will be analyzed by spss version 25.
The purpose of this study is to assess the performance and safety for the use of the investigational catheter for intracardiac mapping in the atria and ventricles.
Interventional, prospective, non-randomized, single-center, non-controlled clinical investigation as part of the premarket clinical evaluation of VX1+ medical device, aiming to verify that VX1+ in bidirectional configuration with auto-tagging function is both ergonomic and reliable for dispersed electrograms detection and automatic tagging on 3D-map in real-time.
The clinical study is intended to implement and test the collection and analysis of paired ECG data from the HeartWatch and two comparator devices, an Event Recorder and Holter. The HeartWatch is indicated for extended diagnostic evaluation of patients with transient symptoms of possible cardiac origin such as syncope and palpitations, as well as patients at risk for arrhythmias, but without significant symptoms. While the use of the device itself can be managed by both healthcare professionals and patients, interpretation of the collected data for diagnosis is restricted to healthcare professionals, as the data must be loaded and analyzed separately after recording. Patients indicated for extended ambulatory ECG testing will be approached for participation. Subjects will wear the HeartWatch and an Event Recorder for up to 72 hours or the HeartWatch and Holter monitor for up to 48 hours. Subjects will be asked to document their activities (standing, sitting, walking, exercise, or laying down). Event recorder subjects will collect user-triggered and auto-triggered data, while Holter subjects will record diary information on their activities and any relevant symptoms. Adverse events and user preference for one device versus the other being used in that arm will also be collected from all subjects. Paired ECG data from the HeartWatch and comparator devices is expected to be similar in terms of the events documented and the proportion of data that is clinically interpretable.
The SECURE EV Study is a prospective, multi-center, single-arm study without concurrent or historical controls. The objectives of the study are 1) to characterize safety of the AtaCor EV-ICD Lead up to 90 days post-implant, and 2) to characterize sensing and conversion of induced VF up to 90 days post-implant.