View clinical trials related to Tachycardia, Supraventricular.
Filter by:Study to compare non inferiority of giving adenosine with the simplified method vs the AHA method
Supraventricular tachycardia (SVT) is a common arrhythmia in the perioperative period, which is associated with adverse stimulus such as cardiovascular risk factors, emotional tension, hypoxia, CO2 accumulation, hypokalemia, atropine and pain. To treat perioperative SVT, in addition to massage the vagus nerve, the use of antiarrhythmic drugs and other internal medicine classic methods, the cardiovascular protection of anesthetic drugs is also a common adjuvant treatment. Dexmedetomidine which is widely used as an adjuvant to general anesthesia, can excite α2 receptor to produce sedation, analgesia, inhibition of sympathetic activity, stabilization of hemodynamics and other effects. Dexmedetomidine is approved by FDA for use in operating room anesthesia and intensive care unit sedation in adults. Although dexmedetomidine is not approved for the treatment of arrhythmias, a growing number of evidences indicated dexmedetomidine can serve as a potential treatment for arrhythmias in perioperative patients. Liu et al. confirmed that dexmedetomidine can reduce ventricular rate and improve atrial fibrillation in cardiac surgery patient. Ji et al. showed that dexmedetomidine anesthesia can be effective in lowering cardiovascular and cerebrovascular complications and mortality in patients one year after coronary bypass surgery. A number of retrospective analyses of pediatric patients undergoing cardiac surgery have shown the incidence of perioperative SVT in patients treated with dexmedetomidine sedation is significantly decreased, which prompts that dexmedetomidine has the potential prevention and treatment for tachyarrhythmia. Therefore, the investigators selected dexmedetomidine for sedation in patients with perioperative SVT to explore the effect for treating SVT via its sedation and mechanism of anti-sympatheticon in this study.
Compare the effectiveness and safety of two techniques for modification of slow AV nodal pathway conduction underlying AVNRT: 1) New Ablation Technique, low voltage and wave front collision mapping vs. 2) the Standard Ablation Technique, an anatomical/electrogram approach.
Paroxysmal supraventricular tachycardia is treated with radiofrequency ablation recently. This procedure is performed by ablating slow pathway or accessory pathway using radiofrequency ablation catheter. Recently developed mirofidelity (MIFI) catheter has mini-electrodes that can record local eletrogram with higher resolution. We aimed to investigate the efficacy of MIFI catheter in the ablation of paroxysmal supraventricular tachycardia compared to conventional radiofrequency ablation catheter. Enrolled patients undergo conventional electrophysiologic study. Patients with sustained supraventricular tachycardia during the study are randomized to either study group or control group. Radiofrequency ablation is performed using MIFI catheter in the study group, and conventional catheter (Blazer II) in the control group. The study endpoints are recorded immediately after ablation and there is no additional follow up or management after procedure.
This prospective study was conducted in 268 patients aged from 65-70 years posted for coronary artery bypass grafting. Patients were randomly allocated to either adenosine or verapamil(control) groups. In the adenosine group, patients received IV adenosine 6 mg bolus then wait 2 minutes, if it failed to return to sinus rhythm then another 12 mg IV bolus of adenosine was administered, if supraventricular tachycardia persisted then the patient was shifted to verapamil. In verapamil group, patients received IV verapamil 5mg bolus slowly over 2 minutes followed by a second IV bolus dose of 5 mg ,10 minutes after the initial dose in case of persistence of supraventricular tachycardia (SVT). If SVT persisted, the patient was shifted to adenosine. The efficacy of the study drug, ICU stay length, systolic blood pressure, hospital- stay length, duration of extubation, the total dose of the study drug used, the total cost of the study drugs and the incidence of adverse events were recorded.
The aim of this single-center prospective randomized controlled trial is to assess the superiority of contact-force-(CF)-sensing-based approach compared to conventional (non-CF-sensing) approach in the catheter ablation of PSVTs, and to investigate the safety of open-irrigated, contact-force-sensing ablation catheters (used in a "non-irrigated" mode) in these procedures.
NODE-303 is a multi-center, open label (OL) study to evaluate the safety of etripamil NS in patients with Paroxysmal Supraventricular Tachycardia (PSVT). Patients will be provided with an ambulatory Cardiac Monitoring System (CMS) to help document PSVT episodes. The CMS will be self-applied by the patient, when they feel the onset of PSVT symptoms. Patients will self-administer etripamil NS if vagal maneuver is ineffective. After an episode of PSVT where drug is administered, the patient will return to the investigative site and have the option to continue in NODE-303 and manage subsequent episodes of PSVT with etripamil NS.
Supraventricular tachycardia (SVT) is an abnormally fast heart rhythm arising from improper electrical activity in the upper part of the heart. SVT is commonly treated with adenosine using three different IV administration techniques. However, it is not well known which of these three techniques is the quickest or most likely to reach the heart in order to stop SVT. This study will simulate each of those techniques in an investigator-blinded procedure. Intravenous agitated saline, used as a surrogate for a dose of adenosine, will be administered to healthy volunteers using all three techniques and monitored using bedside ultrasound to observe their efficacy and speed in reaching the right side of the heart.
The primary objective of this study is to evaluate the safety of etripamil nasal spray (NS) 70 mg when self-administered by patients with an episode of Paroxysmal Supraventricular Tachycardia in an outpatient setting (i.e., without medical supervision).
• Supraventricular tachycardia (SVT) is defined as an abnormally rapid heart rhythm originating above the ventricles. It usually has narrow complex tachycardia but this is not always the case. Conventionally, atrial flutter and fibrillation are excluded from this group.ventricular tachycardia is the most common rhythm disturbance seen in children.(2) Most general practitioners will deal with a case at some point. While in most cases ventricular tachycardia can be considered a benign rhythm disorder, special consideration needs to be given to infants, athletes and patients with Wolff-Parkinson-White syndrome.