PSVT

OBJECTIVE: To review treatment options and updates that exist for the management of paroxysmal supraventricular tachycardia (PSVT). DATA SOURCES: A literature search of PubMed was performed including articles from 1974 to June 2023 using the terms: arrhythmias , adenosine , verapamil , diltiazem , esmolol , propranolol , metoprolol , beta-blockers , amiodarone , PSVT , synchronized cardioversion , methylxanthines , dipyridamole , pediatrics , heart transplant , and pregnancy ...

Vasoconstriction during tachyarrhythmia contributes to maintenance of arterial pressure (AP) by decreasing peripheral blood flow. This cross-sectional observational study aimed to ascertain whether the relationship between peripheral blood flow and AP recovery occurs during both paroxysmal supraventricular (PSVT, n = 19) and ventricular tachycardias (VT, n = 17). Peripheral blood flow was evaluated using forearm tissue oxygen index (TOI), and mean AP (MAP) was measured using a catheter inserted in the brachial or femoral artery during an electrophysiological study...

BACKGROUND: Atrial arrhythmias such as paroxysmal supraventricular tachycardia (PSVT) and atrial flutter (AF) are common in the perioperative setting. They commonly resolve spontaneously. However, occasionally, they may continually progress to fatal arrhythmias or cause complications. Therefore, prompt and appropriate management is important. CASE SUMMARY: A 46-year-old female patient diagnosed with cervical C6-7 radiculopathy characterized by decreased sensation in the right third, fourth and fifth fingers underwent C6-7 anterior cervical disc fusion surgery...

BACKGROUND: The most frequent atrioventricular tachycardia in the emergency room is atrioventricular nodal reentrant tachycardia (AVNRT). The first treatment option for ending stable narrow QRS complex SVTs is vagal maneuvers and adenosine. When adenosine or vagal maneuvers fail to change a patient's rhythm to normal sinus rhythm, long-acting AV nodal-blocking medications, including nondihydropyridine calcium channel blockers (verapamil and diltiazem), flecainide, or beta-blockers, are employed...

BACKGROUND: Radiation exposure during fluoroscopic procedures increases the risk of cancer for both patients and operators. OBJECTIVES: The aim of this study was to investigate the safety and efficacy of adopting a three-dimensional electroanatomical mapping (3D EAM) system during ablation for paroxysmal supraventricular tachycardia (PSVT), without the assistance of intracardiac echocardiography (ICE), for both right- and left-chamber cardiac procedures. METHODS: We retrospectively enrolled all patients with PSVT from September 2018 to December 2020...

Overt or concealed accessory pathways are the anatomic substrates of ventricular preexcitation (VP), Wolff-Parkinson-White syndrome (WPW) and paroxysmal supraventricular tachycardia (PSVT). These arrhythmias are commonly observed in pediatric age. PSVT may occur at any age, from fetus to adulthood, and its symptoms range from none to syncope or heart failure. VP too can range from no symptoms to sudden cardiac death. Therefore, these arrhythmias frequently need risk stratification, electrophysiologic study, drug or ablation treatment...

BACKGROUND: Paroxysmal supraventricular tachycardia (PSVT) treatment requires medically supervised intervention. Etripamil is a novel short-acting calcium channel blocker. Its intranasal spray formulation has a rapid onset of action and shows promise for the unsupervised treatment of PSVT. OBJECTIVE: We aimed to evaluate the efficacy and safety of etripamil nasal spray for the acute conversion of PSVT. METHODS: A systematic review and meta-analysis synthesizing randomized controlled trials (RCTs), which were retrieved by systematically searching the PubMed, EMBASE, Web of Science, SCOPUS, and Cochrane databases through to 1 December 2022...

Pseudo-Wellens Syndrome (PWS) refers to absence of severe obstructive lesion in the proximal segment of the left anterior descending (LAD) despite having clinical and electrocardiography (ECG) features similar to Wellens Syndrome (WS). In previous reports, PWS most commonly caused by illicit drug use, stress cardiomyopathy, or unknown etiologies In this report, we aimed to present our case in which we detected the development of "memory T wave" secondary to Paroxysmal Supraventricular Tachycardia (PSVT) episodes as an interesting cause of PWS that has not been reported before...

BACKGROUND: The advancement of x-ray CT into the domains of photon counting spectral imaging and dynamic cardiac and perfusion imaging has created many new challenges and opportunities for clinicians and researchers. To address challenges such as dose constraints and scanning times while capitalizing on opportunities such as multi-contrast imaging and low-dose coronary angiography, these multi-channel imaging applications require a new generation of CT reconstruction tools. These new tools should exploit the relationships between imaging channels during reconstruction to set new image quality standards while serving as a platform for direct translation between the preclinical and clinical domains...

Patients with arrythmias are at an increased risk of heart-related comorbidities and complications. Specifically, patients with paroxysmal supraventricular tachycardia (PSVT), a type of arrythmia, are at increased risk of lightheadedness or shortness of breath, due to the increased rate of the heartbeat. Most patients are prescribed oral medications to control their heart rates and maintain a normal heart rhythm. Researchers have been tasked with discovering alternative treatment options with new delivery methods to treat arrythmias such as PSVT...

PURPOSE: The study aimed to investigate whether there is a difference in the amount of adenosine per kilogram (mg/kg) between the patient groups that can and cannot be converted to sinus rhythm (SR) with adenosine therapy in patients with supraventricular tachycardia (SVT). MATERIAL AND METHOD: This single-centered, retrospectively designed study was conducted in the ED of a training and research hospital between December 1, 2019 and December 1, 2022 on patients who were admitted to the ED with SVT diagnosis and treated with a 6-12-18 mg adenosine protocol...

Introduction Paroxysmal supraventricular tachycardia (PSVT) is an often-recurring tachyarrhythmia that frequently results in emergency department visits and is commonly treated using intravenous adenosine. Given the anecdotal variable success of adenosine, the question arose of which patient factors may affect its success. This retrospective cohort analysis seeks to test the hypothesis that adult patients who receive adenosine at doses of ≥0.1mg/kg will have greater rates of successful conversion upon receipt of the first dose of adenosine...

BACKGROUND: Despite the spontaneous regression of many cases of coronary artery fistulas (CAFs), symptomatic patients or cases with severe shunting may require therapeutic interventions. In the present study, we aimed to assess the outcome of treatment of CAFs using interventional approaches. METHODS: This retrospective cohort study was performed on 29 patients with CAFs that were referred to our tertiary center between 2009 and 2019. Baseline characteristics were collected by reviewing the hospital files, and the patients were followed up to assess long-term outcomes with a mean follow-up of 3...

BACKGROUND AND OBJECTIVES: A novel wide-band dielectric mapping system, named as KODEX-EPD (EPD Solutions, Philips, Best, the Netherlands), was effectively used in the EA mapping for atrial fibrillation (AF) ablation. To date, only a few studies have concentrated on the application of the KODEX-EPD system for ablating supraventricular tachycardia or ventricular premature beats (VPBs) in human models. This study aims to assess the applicability and efficiency of a novel three-dimensional electro-anatomic (EA) mapping system to improve the success rate of ablation...

INTRODUCTION: Identifying prognostic variables associated with the probability of recurrent paroxysmal supraventricular tachycardia (PSVT) would aid decision-making regarding disposition of the patients. This study aims to develop a clinical scoring system to predict PSVT recurrence after adenosine administration in the emergency department (ED). METHODS: This retrospective cross-sectional study was conducted on patients who were referred to the emergency department of Ramathibodi Hospital, a university-affiliated super-tertiary care hospital in Bangkok, Thailand, with diagnosis of PSVT during a 10-year period from 01 January 2010 until 31 December 2020...

BACKGROUND: Currently, it remains uncertain whether metabolic dysfunction-associated fatty liver disease (MAFLD) is associated with increased risk of supraventricular and ventricular tachyarrhythmias in people with type 2 diabetes mellitus (T2DM). METHODS: We retrospectively examined the data of 367 ambulatory patients with T2DM who underwent 24-hour Holter monitoring between 2015 and 2022 for clinical indications, and who did not have pre-existing permanent atrial fibrillation (AF), kidney failure or known liver diseases...

PURPOSE: Spatial perception is an essential skill for professional dentists. The objective of this study was to observe the spatial ability, as well as anatomy module grades, of dental students at a dental education center in Indonesia and relate these to gender and cohort. METHODS: A cross-sectional study was carried out where dental students in years (cohorts) 1, 2, 4-6 were invited to take the Revised Purdue Spatial Visualization Test (PSVT-R) and the redrawn Vandenberg and Kuse Mental Rotation Test (MRT) in order to assess spatial ability...

BACKGROUND: Pharmacologic termination of paroxysmal supraventricular tachycardia (PSVT) often requires medically supervised intervention. Intranasal etripamil, is an investigational fast-acting, nondihydropyridine, L-type calcium channel blocker, designed for unsupervised self-administration to terminate atrioventricular nodal-dependent PSVT. Phase 2 results showed potential safety and efficacy of etripamil in 104 patients with PSVT. METHODS: NODE-301, a phase 3, multicenter, double-blind, placebo-controlled study evaluated the efficacy and safety of etripamil nasal spray administered, unsupervised in patients with symptomatic sustained PSVT...

Class IC antiarrhythmics are generally considered a safe means of treating many common arrhythmias such as atrial fibrillation (a-fib), atrial flutter (a-flutter), and paroxysmal supraventricular tachycardia (PSVT). Essentially, flecainide works by binding and blocking sodium channels more effectively at higher heart rates. However, this class of drugs is known to exhibit use dependence which could predispose patients to the development of malignant arrhythmias during episodes of tachycardia. In this case, we present a patient who was being treated with flecainide for a-fib who ultimately developed a wide complex tachycardia after her metoprolol was held...

Objectives: To compare the safety and efficacy of completely zero-fluoroscopy radiofrequency ablation (RFA) with that of conventional RFA guided by three-dimensional mapping in Chinese children with paroxysmal supraventricular tachycardia (PSVT). Methods: The study had a single-center observational design and included 46 children aged 6-14 years who underwent RFA for PSVT at the Second Hospital of Hebei Medical University between March 2019 and September 2021. The children were divided according to whether they underwent zero-fluoroscopy RFA (zero-fluoroscopy group, n = 26) or routine RFA under X-ray guidance (conventional group, n = 20)...