View clinical trials related to Tachycardia.
Filter by:Intranasal injection of epinephrine is used routinely during endoscopic sinus surgery (ESS) to reduce bleeding in the nasal mucosa and thereby improve visualization of the surgical field. However, systemic absorption of epinephrine via the nasal mucosa is often accompanied by cardiovascular side effects during the early postinjection period, putting in risk patients with cardiovascular morbidity. Evidence indicate that topical administration of epinephrine achieves similar hemostatic effects compared with injection of epinephrine, while avoiding systemic adverse effects. We wish to conduct a prospective controlled trial assessing the hemostatic and hemodynamic effects of intranasal injection compared to topical application of epinephrin during ESS, in order to evaluate whether the previous could be avoided due to its untoward effects. We hypothesize that topical administration of epinephrine provides a hemostatic effect not inferior to that of intranasal injection while minimizing hemodynamic instability during ESS.
The aim of the study is the comparison of two different leads in their capabilities to detect episodes and duration of paroxysmal atrial fibrillation (AF) and atrial tachyarrhythmia (AT), and the rejection of far field sensing of the far field R-wave (FFRW).
The purpose of this study is to learn how plants can play a role in gain/loss of sodium in the urine and in the regulation of blood pressure. Dopamine is a chemical mostly present in the brain and kidneys which assists in regulation of the body's salts (sodium and potassium). Fava beans contain a lot of the chemical that increases the production of dopamine by the kidneys. The purpose of these studies is to characterize the diuretic effects of dietary catecholamine sources in healthy individuals. Specific aims are: 1. To determine the effect of dietary dopa sources on plasma and urinary catecholamines. 2. To investigate the capacity of botanical dopaminergic agents (fava beans) to induce natriuresis in a short term study. 3. To provide preliminary data on the effects of dietary dopa on heart rate and blood pressure. In these studies, we will test the null hypothesis (Ho) that urinary sodium excretion will not differ in healthy volunteers after consumption of a fixed-sodium study diet and the study diet plus fava beans.
This clinical study is designed to evaluate the safety and effectiveness of the subcutaneous implantable defibrillator (S-ICD) System.
This study aims to assess whether a combined technique of substrate ablation and ablation of the clinically presenting VT at the site of early activation is superior to ablation of the clinically presenting VT alone, in enhancing long-term success of VT ablation.
Interventional study in patients with ICD. Controlled, open intervention with exercise training. Assessment of changes in physiological and psychological parameters.
The purpose of this study is to study the treatment of Atrial Fibrillation and ischemic Ventricular Tachycardia using a RF ablation catheter with contact force sensing capabilities.
The purpose of this research study is to examine the effect of cardiac sympathetic denervation (CSD) surgery on life threatening abnormal heart rhythms called ventricular tachycardia or ventricular fibrillation that can lead to sudden cardiac death. Subjects will be asked to participate in this research study if they have recurrent ventricular tachycardia (at least one ICD shock for ventricular tachycardia) and have undergone at least one catheter ablation procedure or have ventricular tachycardia or fibrillation that is not ablatable. The goal of this study is to determine whether cardiac sympathetic denervation can prevent these abnormal heart rhythms from occurring and therefore, prevent, ICD shocks which are not only painful, but have been shown to reduce quality of life and/or lead to depression, particularly in the period immediately after the shock.
Describe the mutual influences between trainings realized in implantation centers, medico-technical knowledges, technical implementation, perception, fears and appreciation felt by the patients during Home Monitoring implementation.
The investigators will test whether an intravenous infusion of saline (salt water) will improve the exercise capacity in patients with postural tachycardia syndrome (POTS).