Clinical trials: Conduction Block
Sinus Node Dysfunction
Effectiveness of Closed Loop Stimulation (CLS) With His Bundle Lead Placement
This study is a prospective, non-randomized pilot study looking to evaluate the effectiveness of Closed Loop Stimulation (CLS) in sinus node dysfunction patients with HIS bundle placement.
- Trial name
- NCT03601754
- Testing
- Treadmill/Bicycle exercise testing
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- NYU Langone Health
Left Bundle-Branch Block, Pacemaker DDD
Left Bundle Branch Area Mapping for Conduction System Pacing
This study will utilize 3D mapping as a tool to explore electro-anatomical and electrocardiographic characteristics of the Left Bundle Branch Area.
- Trial name
- NCT05884359
- Testing
- 3D Electroanatomical Mapping (NavX)
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Steward St. Elizabeth's Medical Center of Boston, Inc.
Heart Block Complete, Heart Block Second Degree
Slow Heart Registry of Fetal Immune-mediated High Degree Heart Block
Few studies are specifically designed to address health concerns that are already relevant during pregnancy. The consequence is a lack of evidence on best clinical practice.
- Trial name
- NCT04559425
- Testing
- Dexamethasone, No Dexamethasone
- Where
- 27 sites in United States, Bulgaria and 10 more
- Volunteers
- 350 people
- Sponsor
- The Hospital for Sick Children
Heart Failure, Left Bundle-Branch Block
Resynchronization in Paced Heart Failure Patients With Implantable Cardioverter Defibrillator (ICD) Indication
Today patients with a Cardiac Resynchronization Therapy (CRT) indication usually receive 2 ventricular leads, right ventricular (RV) apex and left ventricular (LV) (postero-) lateral, gaining a responder rate of approximately…
- Trial name
- CRTICD Dual LV (NCT01415024)
- Testing
- second LV lead in CRT
- Where
- Germany
- Volunteers
- 30 people
- Sponsor
- Schuechtermann-Klinik
Sick Sinus Syndrome, Complete Atrioventricular Block
Zero-fluoroscopic Navigation Versus Conventional Fluoroscopic Navigation for Double-chamber Pacemaker Implantation
This study is intended to compare the feasibility, safety and efficacy of Ensite-NavX zero-fluoroscopic navigation system to conventional fluoroscopic X-ray approach as to performing double-chamber pacemaker implantation.
- Conditions
- Sick Sinus Syndrome, Complete Atrioventricular Block, High Degree Second Degree Atrioventricular Block (Disorder), Bradycardia
- Trial name
- ZF-PMDC (NCT03118427)
- Testing
- zero-fluoroscopy 3D navigation, conventional x-ray navigation
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Tongji Hospital
Heart Failure, Left Bundle-Branch Block
Mid-Q Response Study
The Mid-Q Response study is a prospective, multi-center, randomized controlled, interventional, single-blinded, post-market study.
- Conditions
- Heart Failure, Left Bundle-Branch Block, Heart Failure With Reduced Ejection Fraction (HFrEF), Heart Failure NYHA Class II
- Trial name
- NCT04180696
- Testing
- aCRT ON, aCRT OFF
- Where
- 61 sites in Brunei, China and 8 more
- Volunteers
- 177 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Conduction Block, Atrioventricular, Bundle-Branch Block
Novel Approach to Conduction System Pacing With Use of Ultrasound
Each year, over one million pacemakers are implanted globally using x-rays. Recent developments have been aimed at determining which area of the heart is the best option for lead placement.
- Trial name
- CONDUCT USe (NCT06815783)
- Testing
- Ultrasound guidance, Fluoroscopy guided
- Where
- 2 sites in Canada
- Volunteers
- 152 people
- Sponsor
- Habib Khan
Anesthesia, Conduction, Ropivacaine
Minimal Effective Concentration (EC90) of Ropivacaine
Prospective up and down sequential evaluation of the minimal effective concentration of perineural ropivacaine for 90% success in axillary brachial plexus block with the injection of intravenous dexamethasone or saline placebo…
- Conditions
- Anesthesia, Conduction, Ropivacaine, Dexamethasone, Axillary Brachial Plexus Block
- Trial name
- AxiRopiDexa (NCT03688269)
- Testing
- Intravenous dexamethasone, Intravenous saline, Perineural ropivacaine
- Where
- France
- Volunteers
- 146 people
- Sponsor
- Centre Hospitalier Universitaire de Besancon
Heart Failure，Congestive, Left Ventricular Dysfunction
LV Endocardial CRT for Patients With Intermediate QRS Width
This pilot study is designed as a multi-centre cohort study determining the degree of LV reverse remodeling in patients with intermediate QRS widths (120-149ms) who undergo CRT implant with transseptal LV leads, and comparing to…
- Conditions
- Heart Failure，Congestive, Left Ventricular Dysfunction, Left Bundle-Branch Block
- Trial name
- EndoCRT (NCT03573427)
- Testing
- Trans-atrial septal placement LV lead for CRT
- Where
- 8 sites in Canada
- Sponsor
- Jaimie Manlucu
Sinus Node Dysfunction, Atrioventricular Block
Evolution of the PR Interval in Patients Implanted With a Pacemaker Using the SafeR Mode
Observational study on long PR interval using the SafeR mode in bradycardia patients.
- Trial name
- PRECISE (NCT02586480)
- Testing
- dual chamber pacemaker with SafeR algorithm
- Where
- 58 sites in France
- Volunteers
- 848 people
- Sponsor
- LivaNova
Pregnancy-Associated Heart Disease, Fetal Congenital Heart Disease
Maternal-Fetal Heart Sound/Electrocardiogram Monitoring and Cardiac Risk Early Warning
This is a prospective observational cohort study conducted at Beijing Anzhen Hospital. The study aims to establish reference ranges of heart sound and electrocardiogram (ECG) parameters for both mothers and fetuses.
- Conditions
- Pregnancy-Associated Heart Disease, Fetal Congenital Heart Disease, Autoimmune-Related Fetal Heart Block, Perinatal Adverse Events
- Trial name
- NCT07526662
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Yihua He,MD
Sick Sinus Syndrome
Imaging Cardiac Electrical Remodeling With Electrocardiogram Imaging (ECGI)
A consequence of chronic RV pacing is a process of electrical remodeling that alters myocardial repolarization to reflect the altered depolarization induced by the RV lead.
- Trial name
- NCT00785564
- Where
- United States
- Volunteers
- 13 people
- Sponsor
- Washington University School of Medicine
Reversal of Neuromuscular Blockade
Safety of Sugammadex for the Reversal of Neuromuscular Blockade in American Society of Anesthesiologists (ASA) Class 3 or 4 Participants (MK-8616-145)
The purpose of this trial is to evaluate the safety of sugammadex for the reversal of neuromuscular blockade (NMB) induced by neuromuscular blockade agents (NMBA) rocuronium or vecuronium in adult American Society of…
- Trial name
- NCT03346057
- Testing
- Sugammadex 2 mg/kg, Sugammadex 4 mg/kg, Sugammadex 16 mg/kg
- Where
- 30 sites in United States, Austria and 2 more
- Volunteers
- 344 people
- Sponsor
- Merck Sharp & Dohme LLC
Long QT Syndrome, Hypoglycemia
The Physiological Effects of Human Ether-a-go-go-Related Gene (hERG)Blockade on Metabolism
The human ether-a-go-go-related gene HERG (encoding Kv11.1 potassium channels) is expressed in different parts of the body including the heart, pancreas and intestines.
- Trial name
- NCT03868657
- Testing
- Moxifloxacin
- Where
- Denmark
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Signe Torekov
Sinus Pause, Sinus Sick Syndrome
Multimodality Location Prediction Accuracy of Leadless Pacemaker Positioning
One of the most serious complications with leadless pacemaker (LP) implants is right ventricle (RV) perforation. Understanding the accuracy of fluoroscopic guidance of implants compared to transthoracic echocardiograms (TTE) and…
- Conditions
- Sinus Pause, Sinus Sick Syndrome, Heart Block, Arrhythmias, Cardiac
- Trial name
- MAP (NCT07908927)
- Testing
- Cardiac Imaging by TTE or CTA
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Bradycardia, Sinus Node Dysfunction
Left Bundle Area Versus Selective His Bundle Pacing
This is a voluntary research study to find out which location in the heart a pacemaker wire is the most efficient for a patient's heart and for battery life.
- Conditions
- Bradycardia, Sinus Node Dysfunction, Atrioventricular Block
- Trial name
- LEFTBASH (NCT04093414)
- Testing
- Select Secure pacing lead
- Where
- 2 sites in United States
- Volunteers
- 9 people
- Sponsor
- David Haines, MD
Left Ventricular Dysfunction
PROTECT-PACE STUDY - The Protection of Left Ventricular Function During Right Ventricular Pacing
This study will be done in patients who require the implantation of a cardiac pacemaker (an electronic device that controls the heartbeat) for complete heart block (a heart rhythm abnormality resulting in a slow heart beat).
- Trial name
- PROTECT-PACE (NCT00461734)
- Testing
- RV lead placement site
- Where
- 18 sites in Australia, New Zealand and 1 more
- Volunteers
- 248 people
- Sponsor
- Medtronic Cardiac Rhythm and Heart Failure
Brugada Syndrome
The Conus Brugada Syndrome Study
An observational, analytical, cross sectional study investigating the effects of Conus branch and Right Ventricular (RV) Branch occlusion on surface ECG and intra-cardiac electrograms in patients undergoing percutaneous coronary…
- Trial name
- Conus-BRS (NCT06653504)
- Where
- United Kingdom
- Volunteers
- 3 people
- Sponsor
- Barts & The London NHS Trust
Aortic Valve Stenosis, Cardiac Conduction Disturbance
Remote Cardiovascular Monitoring in Post-TAVI Patients
The goal of this randomised clinical trial is to utilise a remote monitoring algorithm to gather essential clinical data, aiming to guide the management of post-Transcatheter Aortic Valve Implantation (TAVI) patients and reduce…
- Conditions
- Aortic Valve Stenosis, Cardiac Conduction Disturbance, Digital Health, Transcatheter Aortic Valve Implantation
- Trial name
- TELE-TAVI (NCT06602609)
- Testing
- Remote Patient Monitoring Strategy, Standard Medical Therapy
- Where
- United Kingdom
- Volunteers
- 216 people
- Sponsor
- Imperial College London
Anaesthesia Conduction
Awake Local Anesthesia Infiltration Compared to Regional Nerve Block for Hand Surgeries
The study trying to fined out the best anaesthesia technique for hand flexor procedures which provide efficient anaesthesia while providing adequate surgical field exposure \& less blood loss
- Trial name
- NCT05767944
- Testing
- local anaesthesia infiltration, brachial plexus block
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Ain Shams University