نتایج جستجو برای: atrial pacing lead

تعداد نتایج: 432673  

Journal: :the journal of tehran university heart center 0
saeed sadeghian tehran heart center, tehran university of medical sciences, tehran, iran. ahmad yamini sharif tehran heart center, tehran university of medical sciences, tehran, iran. gholamreza davoodi tehran heart center, tehran university of medical sciences, tehran, iran. ali kazemi saeid tehran heart center, tehran university of medical sciences, tehran, iran.

the overall rate of atrial pacing lead dislodgement is estimated to be about 3%. these leads are generally repositioned via a second operation through opening the pacemaker pocket. some operators have introduced percutaneous techniques using snare system or deflectable catheters for this purpose. in this article we present our experience with five cases of percutaneous lead repositioning. three...

Journal: :British heart journal 1984
M B Fowler J C Crick D I Tayler M J English D J Woollons A D Timmis R Vincent D A Chamberlain

A pacing system requiring only a single lead was used to establish atrial synchronised pacing in eight patients with complete atrioventricular block and cardiogenic shock following acute myocardial infarction. Spontaneous atrial activity was sensed through electrodes positioned on the pacing lead and used to trigger ventricular demand pacing. A normal atrioventricular relation could be establis...

Journal: :Chest 1983
D G Benditt D W Benson K Stokes M R Pritzker R W Anderson

A new urethane insulated dual unipolar atrial/ventricular transvenous lead has been developed to facilitate implantation of permanent dual-chamber cardiac pacing systems in man. The atrial portion of the lead has tines and is designed to retain a permanent J configuration, while the coaxially situated ventricular lead is freely and independently adjustable and incorporates a ring tip electrode ...

2002
H. - F. TSE C. P. LAU Z. LEUNG

Single-lead DDD pacing using unipolar or bipolar stimulation has been limited by high atrial thresholds. Overlapping biphasic (OLBI) waveform stimulation via atrial floating ring electrodes may preferentially enhance atrial stimulation and avoid diaphragmatic pacing. Single-lead DDD pacing using the OLBI pacing configuration was studied in 12 patienta (6 male, 6 female, mean age 74±7 years) wit...

Journal: :Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology 2012
Helbert Acosta Lina Maria Viafara David Izquierdo Vijayasimha R Pothula Julie Bear Shravya Pothula Cynthia Antonio-Drabeck Kwangdeok Lee

AIMS Right ventricular (RV) pacing has been shown to be potentially detrimental to left ventricular function. In conventional dual-chamber pacing the position of the atrial lead could influence duration of the atrio-ventricular (AV) intervals, which is one of the variables that could be associated with an increased percentage of RV pacing. We wanted to see if lead placement at selected atrial s...

Journal: :Heart 2005
M Takagi A Doi N Shirai K Hirata Y Takemoto K Takeuchi J Yoshikawa

OBJECTIVE To evaluate the acute effects of atrial pacing at different pacing sites on mechanical stunning after cardioversion of atrial fibrillation (AF). SETTING Tertiary referral centre. PATIENTS 20 patients with persistent AF were studied. INTERVENTIONS Spontaneous echo contrast (SEC), left atrial appendage emptying velocity (LAAEV), and left atrial appendage emptying fraction (LAAEF) ...

Journal: :Revista espanola de cardiologia 2006
Maruan C Chabbar Boudet Antonella Lukic José G Galache Osuna Jesús De Juan Montiel Eduardo Cay Diarte José A Diarte de Miguel Luis J Placer Peralta

INTRODUCTION AND OBJECTIVES Single-lead VDD pacing provides the physiological benefits of atrioventricular synchrony with the convenience of a single-lead system. However, concern remains about the method's safety and effectiveness. METHOD In total, 700 patients with single-lead VDD pacemakers were evaluated retrospectively. The following parameters were recorded: age, sex, etiology, the symp...

2004
M Takagi A Doi N Shirai K Hirata Y Takemoto K Takeuchi J Yoshikawa

Objective: To evaluate the acute effects of atrial pacing at different pacing sites on mechanical stunning after cardioversion of atrial fibrillation (AF). Setting: Tertiary referral centre. Patients: 20 patients with persistent AF were studied. Interventions: Spontaneous echo contrast (SEC), left atrial appendage emptying velocity (LAAEV), and left atrial appendage emptying fraction (LAAEF) we...

Journal: :Circulation 1971
R W DeSanctis

There are occasions when atrial pacing can be usefully employed both diagnostically and therapeutically. Diagnostically, atrial pacing provides mechanisms for easily, safely, and reproducibly stressing the heart that can help in the evaluation of patients with a variety of cardiac disorders. It is particularly useful in the assessment of patients with coronary disease. Therapeutically, atrial p...

Journal: :Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology 2013
Bernard Thibault Marc Dubuc Paul Khairy Peter G Guerra Laurent Macle Lena Rivard Denis Roy Mario Talajic Edward Karst Kyungmoo Ryu Patrice Paiement Taraneh G Farazi

AIMS Pacing from multiple sites in the left ventricle (LV) may bring about further resynchronization of the diseased heart compared with biventricular (BiV) pacing. We compared acute haemodynamic response (LV dP/dtmax) of multisite and BiV pacing using a quadripolar LV lead. METHODS AND RESULTS In 21 patients receiving cardiac resynchronization therapy, a quadripolar LV lead and conventional ...

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