当前位置： SCI文献检索 > HEART RHYTHM期刊下所有文献 > Determination of myocardial infarct size by noncontact mapping.

Determination of myocardial infarct size by noncontact mapping.

Abstract：

BACKGROUND:Once chamber geometry is determined, the EnSite 3000 noncontact mapping system can create a voltage map during a single cardiac cycle. The EnSite uses an inverse solution to the Laplace equation to process the amplified far-field signals from the noncontact catheter. This process creates a three-dimensional endocardial potential map from a single cardiac cycle. Dynamic substrate mapping (DSM) is an algorithm designed to identify conduction boundaries, such as myocardial scars based on voltage distribution within the corresponding chamber. OBJECTIVE:The purpose of this study was to investigate the correlation between DSM- and magnetic resonance imaging (MRI)-determined scar areas and to identify a suitable DSM voltage threshold. METHODS:A total of eight dogs were studied. Four healthy foxhounds underwent ligation of the left anterior descending coronary artery. Evidence of myocardial infarction, including ECG changes and elevated cardiac troponin T levels, was noted in all animals. Cardiac MRI scan was performed 29 +/- 2 days after ligation of the left anterior descending coronary artery. Subsequently, noncontact mapping of the left ventricle was obtained in each dog, and myocardial infarction size was determined using DSM at different filter settings. As a control group, another four foxhounds underwent sham thoracotomy/pericardiotomy. RESULTS:A significant linear correlation of infarction size using DSM compared with MRI measurements was found at the filter setting "peak negative 34%" (P = .001, r = 0.99). Mean relative infarction size was 15.9% +/- 4.5% with DSM and 16.0% +/- 4.2% with MRI. Compared with the sham group, a significant reduction in left ventricular ejection fraction was found after ligation of the left anterior descending coronary artery (51.0% +/- 3.8% vs 69.2% +/- 5.9%, P = .002). Pathoanatomic studies were performed to confirm the measured infarct dimensions. No scars were detectable in sham-operated dogs using DSM or MRI. CONCLUSION:Noncontact mapping allows identification of scar tissue within the left ventricle. An excellent correlation was observed between DSM-scar surface and MRI-determined scar size. Identifying and marking these areas can be useful when planning an ablation strategy in the clinical setting of ischemic heart disease.

journal_name

Heart Rhythm

journal_title

Heart rhythm

authors

Voss F,Steen H,Bauer A,Giannitsis E,Katus HA,Becker R

doi

10.1016/j.hrthm.2007.10.026

subject

Has Abstract

pub_date

2008-02-01 00:00:00

pages

308-14

issue

2

eissn

1547-5271

issn

1556-3871

pii

S1547-5271(07)01036-3

journal_volume

5

pub_type

杂志文章

相关文献

HEART RHYTHM文献大全
  • n-3 Polyunsaturated fatty acids alter expression of fibrotic and hypertrophic genes in a dog model of atrial cardiomyopathy.

    abstract：BACKGROUND:We previously showed that omega-3 polyunsaturated fatty acids (PUFAs) reduce vulnerability to atrial fibrillation (AF). The mechanisms underlying this effect are unknown. OBJECTIVE:The purpose of this study was to use a genome-wide approach to identify gene expression profiles involved in a new model of AF ...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2009.12.016

    authors： Ramadeen A,Laurent G,dos Santos CC,Hu X,Connelly KA,Holub BJ,Mangat I,Dorian P

    更新日期：2010-04-01 00:00:00

  • Wilhelm His Jr. (1863-1934)--the man behind the bundle.

    abstract：:Wilhelm His Jr. (1863-1934) was a Swiss-born cardiologist and anatomist. In 1893, he discovered the bundle of His-the specialized tissue in the heart that transmits the electrical impulses and helps synchronize contraction. He pioneered studies in cardiac conduction and coined the term "heart block," which he identifi...

    journal_title：Heart rhythm

    pub_type： 传,历史文章,杂志文章

    doi：10.1016/j.hrthm.2005.11.020

    authors： Roguin A

    更新日期：2006-04-01 00:00:00

  • Drug-induced Brugada syndrome: Clinical characteristics and risk factors.

    abstract：BACKGROUND:Cardiac arrest may result from seemingly innocuous medications that do not necessarily have cardiac indications. The best-known example is the drug-induced long QT syndrome. A less known but not necessarily less important form of drug-induced proarrhythmia is the drug-induced Brugada syndrome. OBJECTIVE:The...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2016.03.016

    authors： Konigstein M,Rosso R,Topaz G,Postema PG,Friedensohn L,Heller K,Zeltser D,Belhassen B,Adler A,Viskin S

    更新日期：2016-05-01 00:00:00

  • Implantable cardioverter-defibrillators in lamin A/C mutation carriers with cardiac conduction disorders.

    abstract：BACKGROUND:Sudden cardiac death is frequent in patients with lamin A/C gene (LMNA) mutations and may be related to ventricular arrhythmias (VA). OBJECTIVE:To evaluate a strategy of prophylactic implantable cardioverter-defibrillator (ICD) implantation in LMNA mutation carriers with significant cardiac conduction disor...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2013.06.020

    authors： Anselme F,Moubarak G,Savouré A,Godin B,Borz B,Drouin-Garraud V,Gay A

    更新日期：2013-10-01 00:00:00

  • Relationship among complex signals, short cycle length activity, and dominant frequency in patients with long-lasting persistent AF: a high-density epicardial mapping study in humans.

    abstract：BACKGROUND:Complex fractionated atrial electrograms (CFAEs) and regions of high dominant frequency (DF) both may identify sites critical to the maintenance of atrial fibrillation (AF). CFAEs may be defined by either (1) complex multicomponent electrograms (EGMs) and/or continuous electrical activity (multicomponent/con...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2011.05.021

    authors： Lee G,Roberts-Thomson K,Madry A,Spence S,Teh A,Heck PM,Kumar S,Kistler PM,Morton JB,Sanders P,Kalman JM

    更新日期：2011-11-01 00:00:00

  • No decline in the risk of heart failure after incident atrial fibrillation: A community study assessing trends overall and by ejection fraction.

    abstract：BACKGROUND:Patients with atrial fibrillation (AF) experience an increased risk of heart failure (HF). However, data are lacking on current trends in the risk of HF after AF. OBJECTIVE:The purpose of this study was to describe the temporal trends in HF occurrence after AF in a community cohort of patients with incident...

    journal_title：Heart rhythm

    pub_type： 杂志文章,多中心研究

    doi：10.1016/j.hrthm.2017.01.031

    authors： Chamberlain AM,Gersh BJ,Alonso A,Kopecky SL,Killian JM,Weston SA,Roger VL

    更新日期：2017-06-01 00:00:00

  • Probability and magnitude of response to cardiac resynchronization therapy according to QRS duration and gender in nonischemic cardiomyopathy and LBBB.

    abstract：BACKGROUND:QRS morphology and QRS duration (QRSd) determine cardiac resynchronization therapy (CRT) candidate selection but criteria require refinement. OBJECTIVE:To assess CRT effect according to QRSd, treated by dichotomization vs a continuous function, and modulation by gender. METHODS:Patients selected were those...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2014.04.001

    authors： Varma N,Manne M,Nguyen D,He J,Niebauer M,Tchou P

    更新日期：2014-07-01 00:00:00

  • Utility of high-resolution electroanatomic mapping of the left ventricle using a multispline basket catheter in a swine model of chronic myocardial infarction.

    abstract：BACKGROUND:Standard electroanatomic mapping systems use a single catheter to perform left ventricular substrate mapping. A new mapping system uses a 64-electrode mini-basket catheter to perform rapid automated acquisition of chamber geometry, voltage, and activation. OBJECTIVE:The aim of this study was to compare the ...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2014.08.036

    authors： Tanaka Y,Genet M,Chuan Lee L,Martin AJ,Sievers R,Gerstenfeld EP

    更新日期：2015-01-01 00:00:00

  • High-density substrate-guided ventricular tachycardia ablation: role of activation mapping in an attempt to improve procedural effectiveness.

    abstract：BACKGROUND:Advanced techniques of electroanatomical mapping efficiently guide ventricular tachycardia (VT) ablation strategies; in this context, the adjunctive value of combining activation mapping (AMap) to improve accuracy has not been elucidated. OBJECTIVE:To investigate whether conventional AMap further contribute...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2013.09.059

    authors： Carbucicchio C,Ahmad Raja N,Di Biase L,Volpe V,Dello Russo A,Trivedi C,Bartoletti S,Zucchetti M,Casella M,Russo E,Santangeli P,Moltrasio M,Tundo F,Fassini G,Natale A,Tondo C

    更新日期：2013-12-01 00:00:00

  • Characterization of the molecular phenotype of two arrhythmogenic right ventricular cardiomyopathy (ARVC)-related plakophilin-2 (PKP2) mutations.

    abstract：BACKGROUND:Arrhythmogenic right ventricular cardiomyopathy (ARVC) has been linked to mutations in desmosomal proteins, including plakophilin-2 (PKP2). Little is known about the changes in cellular function and structure that follow expression of ARVC-relevant PKP2 mutations. OBJECTIVE:The purpose of this study was to ...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2008.09.009

    authors： Joshi-Mukherjee R,Coombs W,Musa H,Oxford E,Taffet S,Delmar M

    更新日期：2008-12-01 00:00:00

  • Long-term results after ablation of infarct-related ventricular tachycardia.

    abstract：OBJECTIVES:The purpose of this study was to assess the long-term effects of ablation of infarct-related ventricular tachycardia (VT) and the subsequent requirement for implantable cardioverter-defibrillator (ICD) therapy. BACKGROUND:The long-term consequences after initially successful catheter ablation of infarct-rel...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2005.01.017

    authors： Segal OR,Chow AW,Markides V,Schilling RJ,Peters NS,Davies DW

    更新日期：2005-05-01 00:00:00

  • The role of atrial natriuretic peptide in modulating cardiac electrophysiology.

    abstract：:Since the discovery of atrial natriuretic peptide (ANP) in 1981, significant progress has been made in understanding the mechanism of its release and its role in salt and water balance in the body. It has also become clear that ANP plays a key role in cardiac electrophysiology, modulating the autonomic nervous system ...

    journal_title：Heart rhythm

    pub_type： 杂志文章,评审

    doi：10.1016/j.hrthm.2011.11.019

    authors： Perrin MJ,Gollob MH

    更新日期：2012-04-01 00:00:00

  • Ischemic ventricular arrhythmias: experimental models and their clinical relevance.

    abstract：:In the United States, sudden cardiac death accounts for an estimated 300,000 to 350,000 cases each year, with 80,000 presenting as the first manifestation of a preexisting, sometimes unrecognized, coronary artery disease. Acute myocardial infarction (AMI)-induced ventricular fibrillation frequently occurs without warn...

    journal_title：Heart rhythm

    pub_type： 杂志文章,评审

    doi：10.1016/j.hrthm.2011.06.036

    authors： Di Diego JM,Antzelevitch C

    更新日期：2011-12-01 00:00:00

  • Cardiac surgery for arrhythmias.

    abstract：:Cardiac arrhythmia surgery was initiated in 1968 with the first successful division of an accessory AV connection for the Wolff-Parkinson-White Syndrome. Subsequent surgical procedures included the left atrial isolation procedure and the right atrial isolation procedure for automatic atrial tachycardias, discrete cryo...

    journal_title：Heart rhythm

    pub_type： 历史文章,杂志文章,评审

    doi：10.1016/j.hrthm.2004.10.021

    authors： Cox JL

    更新日期：2004-11-01 00:00:00

  • Leadless pacemaker implantation after explantation of infected conventional pacemaker systems: A viable solution?

    abstract：BACKGROUND:Conventional cardiac device infections are increasing in incidence, causing significant morbidity and mortality. Leadless pacemaker (LP) therapy may provide new opportunities for the management of pacemaker (PM) infections as it does not require implantation of transvenous leads and a pectoral pocket. OBJEC...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2018.07.006

    authors： Beurskens NEG,Tjong FVY,Dasselaar KJ,Kuijt WJ,Wilde AAM,Knops RE

    更新日期：2019-01-01 00:00:00

  • Early temporal and spatial regularization of persistent atrial fibrillation predicts termination and arrhythmia-free outcome.

    abstract：BACKGROUND:Termination of persistent atrial fibrillation (AF) is a valuable ablation endpoint but is difficult to anticipate. We evaluated whether temporal and spatial indices of AF regularization predict intraprocedural AF termination and outcome. OBJECTIVE:The purpose of this study was to test whether temporospatial...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2011.05.008

    authors： Forclaz A,Narayan SM,Scherr D,Linton N,Jadidi AS,Nault I,Rivard L,Miyazaki S,Uldry L,Wright M,Shah AJ,Liu X,Xhaet O,Derval N,Knecht S,Sacher F,Jaïs P,Hocini M,Haïssaguerre M

    更新日期：2011-09-01 00:00:00

  • Arrhythmogenic mechanisms of the Purkinje system during electric shocks: a modeling study.

    abstract：BACKGROUND:The function of the Purkinje system (PS) is to ensure fast and uniform activation of the heart. Although this vital role during sinus rhythm is well understood, this is not the case when shocks are applied to the heart, especially in the case of failed defibrillation. The PS activates differently from the my...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2009.08.023

    authors： Deo M,Boyle P,Plank G,Vigmond E

    更新日期：2009-12-01 00:00:00

  • Transthoracic percutaneous access for electroanatomic mapping and catheter ablation of atrial tachycardia in patients with a lateral tunnel Fontan.

    abstract：BACKGROUND:The incidence of atrial tachycardia following Fontan surgery is high, but access to the pulmonary venous atrium, a frequent site of arrhythmia origin, is limited. OBJECTIVES:The purpose of this study is to report our results with a novel transthoracic percutaneous technique that provides direct access to th...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2005.09.027

    authors： Nehgme RA,Carboni MP,Care J,Murphy JD

    更新日期：2006-01-01 00:00:00

  • Incidence and causes of in-hospital outcomes and 30-day readmissions after percutaneous left atrial appendage closure: A US nationwide retrospective cohort study using claims data.

    abstract：BACKGROUND:Percutaneous left atrial appendage closure (pLAAC) emerged as an option for stroke prevention in patients with atrial fibrillation ineligible for long-term anticoagulation. Real-world data on pLAAC's in-hospital and 30-day readmission measures are limited. OBJECTIVE:We sought to report the nationwide incide...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2019.09.018

    authors： Vuddanda VLK,Turagam MK,Umale NA,Shah Z,Lakkireddy DR,Bartus K,McCausland FR,Velagapudi P,Mansour M,Heist EK

    更新日期：2020-03-01 00:00:00

  • High prevalence of concealed Brugada syndrome in patients with atrioventricular nodal reentrant tachycardia.

    abstract：BACKGROUND:Atrioventricular nodal reentrant tachycardia (AVNRT) may coexist with Brugada syndrome (BrS). OBJECTIVES:The present study was designed to determine the prevalence of drug-induced type 1 Brugada ECG pattern (concealed BrS) in patients presenting with clinical spontaneous AVNRT and to investigate their elect...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2015.03.015

    authors： Hasdemir C,Payzin S,Kocabas U,Sahin H,Yildirim N,Alp A,Aydin M,Pfeiffer R,Burashnikov E,Wu Y,Antzelevitch C

    更新日期：2015-07-01 00:00:00

  • Subclavian venoplasty by the implanting physicians in 373 patients over 11 years.

    abstract：BACKGROUND:The need to add a lead(s) despite subclavian/innominate obstruction is increasing. Subclavian venoplasty may be a good alternative to the commonly employed options; however, there are few reports in the literature, and all are by interventional radiologists. OBJECTIVE:To describe the procedural details, res...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2010.12.014

    authors： Worley SJ,Gohn DC,Pulliam RW,Raifsnider MA,Ebersole BI,Tuzi J

    更新日期：2011-04-01 00:00:00

  • Ethanol infusion in the vein of Marshall: Adjunctive effects during ablation of atrial fibrillation.

    abstract：BACKGROUND:The vein of Marshall (VOM) is a left atrial (LA) vein that contains autonomic innervation and triggers of AF. Its location coincides with areas usually ablated during pulmonary vein (PV) antral isolation (PVAI). OBJECTIVE:This study sought to delineate the safety and ablative effects of ethanol infusion in ...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2009.07.036

    authors： Valderrábano M,Liu X,Sasaridis C,Sidhu J,Little S,Khoury DS

    更新日期：2009-11-01 00:00:00

  • Multiple monophasic shocks improve electrotherapy of ventricular tachycardia in a rabbit model of chronic infarction.

    abstract：BACKGROUND:We previously showed that the cardioversion threshold (CVT) for ventricular tachycardia (VT) is phase dependent when a single monophasic shock (1MP) is used. OBJECTIVE:The purpose of this study was to extend these findings to a biphasic shock (1BP) and to compare the efficacy of phase-independent multiple m...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2009.03.015

    authors： Li W,Ripplinger CM,Lou Q,Efimov IR

    更新日期：2009-07-01 00:00:00

  • The Canadian experience with Durata and Riata ST Optim defibrillator leads: a report from the Canadian Heart Rhythm Society Device Committee.

    abstract：BACKGROUND:The St. Jude Medical Riata family of implantable cardioverter-defibrillator (ICD) leads has demonstrated a high rate of externalized conductors and electrical failure. OBJECTIVE:Given similar design elements of Durata to Riata, the purpose of this study was to assess the rates of failure of the Riata ST Opt...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2013.07.050

    authors： Bennett MT,Ha AC,Exner DV,Tung SK,Parkash R,Connors S,Coutu B,Crystal E,Champagne J,Philippon F,Yee R,Stephenson EA,Nery PB,Essebag V,Sanatani S,Redfearn D,Krahn AD,Healey JS

    更新日期：2013-10-01 00:00:00

  • Interatrial conduction can be accurately determined using standard 12-lead electrocardiography: validation of P-wave morphology using electroanatomic mapping in man.

    abstract：BACKGROUND:Different P-wave morphologies during sinus rhythm as displayed on standard ECGs have been postulated to correspond to differences in interatrial conduction. OBJECTIVE:The purpose of this study was to evaluate the hypothesis by comparing P-wave morphologies using left atrial activation maps. METHODS:Twenty-...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2007.12.017

    authors： Holmqvist F,Husser D,Tapanainen JM,Carlson J,Jurkko R,Xia Y,Havmöller R,Kongstad O,Toivonen L,Olsson SB,Platonov PG

    更新日期：2008-03-01 00:00:00

  • Catheter ablation using the third-generation cryoballoon provides an enhanced ability to assess time to pulmonary vein isolation facilitating the ablation strategy: Short- and long-term results of a multicenter study.

    abstract：BACKGROUND:Limited data exist on cryoablation of atrial fibrillation (Cryo-AF) using the newly available third-generation (Arctic Front Advance-Short Tip [AFA-ST]) cryoballoon. OBJECTIVE:In this multicenter study, we evaluated the safety and efficacy of Cryo-AF using the AFA-ST vs the second-generation (Arctic Front A...

    journal_title：Heart rhythm

    pub_type： 杂志文章,多中心研究

    doi：10.1016/j.hrthm.2016.08.011

    authors： Aryana A,Kowalski M,O'Neill PG,Koo CH,Lim HW,Khan A,Hokanson RB,Bowers MR,Kenigsberg DN,Ellenbogen KA,Cryo-DOSING Investigators.

    更新日期：2016-12-01 00:00:00

  • The effect of reverse remodeling on long-term survival in mildly symptomatic patients with heart failure receiving cardiac resynchronization therapy: results of the REVERSE study.

    abstract：BACKGROUND:Cardiac resynchronization therapy (CRT) reduces mortality, improves functional status, and induces reverse left ventricular remodeling in selected populations with heart failure (HF). The magnitude of reverse remodeling predicts survival with many HF medical therapies. However, there are few studies assessin...

    journal_title：Heart rhythm

    pub_type： 杂志文章,多中心研究,随机对照试验

    doi：10.1016/j.hrthm.2014.11.014

    authors： Gold MR,Daubert C,Abraham WT,Ghio S,St John Sutton M,Hudnall JH,Cerkvenik J,Linde C

    更新日期：2015-03-01 00:00:00

  • Safety and efficacy of epicardial cryoablation in a canine model.

    abstract：OBJECTIVES:The purpose of this study was to evaluate the safety and efficacy of cryoablation in a closed chest canine epicardial ablation model. BACKGROUND:Limitations of radiofrequency energy in the epicardial space warrants investigation of alternative energy sources. METHODS:A linear-tip catheter with a 3-cm freez...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2004.09.022

    authors： Lustgarten DL,Bell S,Hardin N,Calame J,Spector PS

    更新日期：2005-01-01 00:00:00

  • Ventricular tachycardia in cardiolaminopathy: Characteristics and considerations for device programming.

    abstract：BACKGROUND:Mutations in LMNA cause an arrhythmogenic cardiomyopathy (cardiolaminopathy) with high risk of ventricular tachycardia (VT). The natural history of VT among patients with cardiolaminopathy is incompletely understood. OBJECTIVE:The purpose of this study was to determine the longitudinal burden and progressio...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2020.05.023

    authors： Sidhu K,Han L,Picard KCI,Tedrow UB,Lakdawala NK

    更新日期：2020-10-01 00:00:00

  • Incidence and etiology of sports-related sudden cardiac death in Denmark--implications for preparticipation screening.

    abstract：BACKGROUND:Studies on incidences of sports-related sudden cardiac death (SrSCD) are few and data are needed for the discussion of preparticipation screening for cardiac disease. OBJECTIVE:We sought to chart the incidence and etiology of SrSCD in the young in Denmark (population 5.4 million) and to compare this to the ...

    journal_title：Heart rhythm

    pub_type： 杂志文章

    doi：10.1016/j.hrthm.2010.05.021

    authors： Holst AG,Winkel BG,Theilade J,Kristensen IB,Thomsen JL,Ottesen GL,Svendsen JH,Haunsø S,Prescott E,Tfelt-Hansen J

    更新日期：2010-10-01 00:00:00