scholarly journals 203 Catheter Ablation for Focal Atrial and Ventricular Tachycardia Using the High Density Grid Mapping Catheter

2020 ◽  
Vol 29 ◽  
pp. S126
Author(s):  
D. Chieng ◽  
A. Lahiri ◽  
H. Sugumar ◽  
A. Al-Kaisey ◽  
R. Parameswaran ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Catheter Ablation ◽  
High Density ◽  
Grid Mapping ◽  
Mapping Catheter

scholarly journals Enhanced ventricular tachycardia substrate resolution with a novel omnipolar high-density mapping catheter: the omnimapping study

2019 ◽  
Vol 58 (3) ◽  
pp. 355-362 ◽  
Author(s):  
Riccardo Proietti ◽  
Ahmed M. Adlan ◽  
Rory Dowd ◽  
Shershah Assadullah ◽  
Bashar Aldhoon ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
High Density ◽  
Density Mapping ◽  
Mapping Catheter

scholarly journals High-definition mapping of the atria using a novel multipolar mapping catheter in patients with complex adult congenital heart disease

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Mohammad Paymard ◽  
Santabhanu Chakrabarti
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Catheter Ablation ◽  
Congenital Heart ◽  
Heart Diseases ◽  
Atrial Arrhythmias ◽  
Grid Mapping ◽  
The Mean ◽  
Activation Mapping ◽  
Mapping Catheter

Abstract Background The Advisor™ HD Grid Mapping Catheter (Abbott Technologies, Minneapolis, MN) has been recently introduced. Although the clinical use of HD Grid mapping catheter is well described in adults with no congenital heart disease, there is limited data on the feasibility of using the HD Grid multipolar catheter to create voltage and activation mapping in adults with congenital heart disease. The purpose of this study was to evaluate the safety and technical feasibility of using the Advisor™ HD Grid mapping catheter during the catheter ablation of atrial arrhythmias in adults with congenital heart disease. We included 6 consecutive adults with congenital heart disease suffering from atrial arrhythmias in our study. The HD Grid mapping catheter was used to perform voltage and activation mapping. Results Six patients with congenital heart diseases (d-TGA n = 1, Tricuspid atresia n = 1, atrioventricular defect repair n = 1, secundum atrial septal defect n = 1, double-inlet single-ventricle n = 1, Tetralogy of Fallot = 1); majority (84%) male, with the mean age was 35 ± 10 years included in our series. The mean ablation duration and the fluoroscopy time were 789 ± 433 and 502 ± 355 s, respectively. The mean radiation dose was 7.52 ± 9 milliGy/cm2. The HD Grid mapping catheter was used successfully for entire arrhythmia mapping in 5 out of 6 cases. During one procedure, HD Grid mapping catheter could not be used for the entire mapping due to suboptimal reach through baffle puncture. The acute success rate of ablation was 100% with no immediate complications. Conclusions The use of HD Grid mapping catheter is a safe and valuable adjunct to accurately create voltage and activation mapping in ACHD patients undergoing radiofrequency catheter ablation. However, a contact force-sensing ablation catheter should be considered in conjunction to supplement data acquisition in challenging anatomy and substrates.

Value of high-density endocardial and epicardial mapping for catheter ablation of hemodynamically unstable ventricular tachycardia

Heart Rhythm ◽  
2006 ◽  
Vol 3 (1) ◽  
pp. 1-10 ◽  
Author(s):  
David A. Cesario ◽  
Marmar Vaseghi ◽  
Noel G. Boyle ◽  
Michael C. Fishbein ◽  
Miguel Valderrábano ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Catheter Ablation ◽  
High Density ◽  
Epicardial Mapping

scholarly journals Successful ablation of ventricular tachycardia with a novel multipolar high-density mapping catheter

2016 ◽  
Vol 23 (4) ◽  
pp. 446-448
Author(s):  
Tardu Özkartal ◽  
S. Andreas Müller-Burri ◽  
Corinna B. Brunckhorst ◽  
Laurent M. Haegeli
Keyword(s):  
Ventricular Tachycardia ◽  
High Density ◽  
Density Mapping ◽  
Successful Ablation ◽  
Mapping Catheter

scholarly journals Impact of a high-density grid catheter on long-term outcomes for structural heart disease ventricular tachycardia ablation

2021 ◽  
Author(s):  
Riccardo Proietti ◽  
Rory Dowd ◽  
Lim Ven Gee ◽  
Shamil Yusuf ◽  
Sandeep Panikker ◽  
...  
Keyword(s):  
Heart Disease ◽  
Ventricular Tachycardia ◽  
Structural Heart Disease ◽  
High Density ◽  
Long Term Outcomes ◽  
Density Mapping ◽  
Significant Difference ◽  
Vt Ablation ◽  
Mapping Catheter

Abstract Background Substrate mapping has highlighted the importance of targeting diastolic conduction channels and late potentials during ventricular tachycardia (VT) ablation. State-of-the-art multipolar mapping catheters have enhanced mapping capabilities. The purpose of this study was to investigate whether long-term outcomes were improved with the use of a HD Grid mapping catheter combining complementary mapping strategies in patients with structural heart disease VT. Methods Consecutive patients underwent VT ablation assigned to either HD Grid, Pentaray, Duodeca, or point-by-point (PbyP) RF mapping catheters. Clinical endpoints included recurrent anti-tachycardia pacing (ATP), appropriate shock, asymptomatic non-sustained VT, or all-cause death. Results Seventy-three procedures were performed (33 HD Grid, 22 Pentaray, 12 Duodeca, and 6 PbyP) with no significant difference in baseline characteristics. Substrate mapping was performed in 97% of cases. Activation maps were generated in 82% of HD Grid cases (Pentaray 64%; Duodeca 92%; PbyP 33% (p = 0.025)) with similar trends in entrainment and pace mapping. Elimination of all VTs occurred in 79% of HD Grid cases (Pentaray 55%; Duodeca 83%; PbyP 33% (p = 0.04)). With a mean follow-up of 372 ± 234 days, freedom from recurrent ATP and shock was 97% and 100% respectively in the HD Grid group (Pentaray 64%, 82%; Duodeca 58%, 83%; PbyP 33%, 33% (log rank p = 0.0042, p = 0.0002)). Conclusions This study highlights a step-wise improvement in survival free from ICD therapies as the density of mapping capability increases. By using a high-density mapping catheter and combining complementary mapping strategies in a strict procedural workflow, long-term clinical outcomes are improved.

scholarly journals Long-Term outcome of ventricular tachycardia catheter ablation in ischemic heart disease patients using a high-density mapping substrate-based approach: a prospective cohort study

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
P Silverio Antonio ◽  
G Lima Da Silva ◽  
T Rodrigues ◽  
N Cunha ◽  
S Couto Pereira ◽  
...  
Keyword(s):  
Heart Disease ◽  
Ventricular Tachycardia ◽  
Catheter Ablation ◽  
Ischemic Heart Disease ◽  
High Density ◽  
Term Outcome ◽  
Long Term Outcome ◽  
Density Mapping ◽  
All Cause Mortality

Abstract Funding Acknowledgements Type of funding sources: None. Introduction and objective Radiofrequency catheter ablation (RCA) for ventricular tachycardia (VT) in patients with ischemic heart disease (IHD) is associated with a reduced risk of VT storm and implantable cardioverter defibrillator (ICD) shocks. We aim to report the long-term outcome after a single RCA procedure for VT in patients with IHD using a high-density substrate-based approach. Methods We conducted a prospective, observational, single-centre and single-arm study involving patients with IHD, referred for RCA procedure for VT using high-density mapping catheters. Substrate mapping was performed in all patients. Procedural endpoints were VT noninducibility and local abnormal ventricular activities (LAVAs) elimination. The primary end point was survival free from appropriate ICD shocks and secondary end points included VT storm and all-cause mortality. Results Sixty-four consecutive patients were included (68 ± 9 years, 95% male, mean ejection fraction 33 ± 11% , 39% VT storms, and 69% appropriate ICD shocks). LAVAs were identified in all patients and VT inducibility was found in 83%. LAVAs elimination and noninducibility were achieved in 93.8% and 60%, respectively. After a mean follow-up of 25 ± 18 months, 90% and 85% of patients are free from appropriate ICD shocks at 1 and 2 years, respectively. The proportion of patients experiencing VT storm decreased from 39% to 1.6%. Overall survival was 89% and 84% at 1 and 2 years, respectively. Conclusions RCA of VT in IHD using a high-density mapping substrate-based approach resulted in a long-term steady freedom of ICD shocks and VT storm. Abstract Figure. Appropriate shock & all cause mortality

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