Wide QRS Tachycardia with Atrioventricular Dissociation and an HV Interval of 60 msec

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73193/1/j.1540-8167.1997.tb00814.x.pd

Temporal Stability of the Location of the Esophagus in Patients Undergoing a Repeat Left Atrial Ablation Procedure for Atrial Fibrillation or Flutter

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71884/1/j.1540-8167.2007.01051.x.pd

Effect of Catheter Ablation on Progression of Paroxysmal Atrial Fibrillation

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90181/1/j.1540-8167.2011.02137.x.pd

Clinical Value of the Postpacing Interval for Mapping of Ventricular Tachycardia in Patients with Prior Myocardial Infarction

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72569/1/j.1540-8167.1999.tb00640.x.pd

Radiofrequency Ablation of Idiopathic Left Anterior Fascicular Tachycardia

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71580/1/j.1540-8167.1995.tb00389.x.pd

Utility of Atrial and Ventricular Cycle Length Variability in Determining the Mechanism of Paroxysmal Supraventricular Tachycardia

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72411/1/j.1540-8167.2007.00860.x.pd

Randomized Comparison of Cavotricuspid Isthmus Ablation for Atrial Flutter Using an Open Irrigation‐Tip versus a Large‐Tip Radiofrequency Ablation Catheter

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/86825/1/j.1540-8167.2011.02045.x.pd

Relative Timing of Isolated Potentials During Postinfarction Ventricular Tachycardia and Sinus Rhythm

Background: In postinfarction patients, isolated potentials separated by an isoelectric segment from the ventricular electrogram indicate areas of block. Isolated potentials can be recorded during both sinus rhythm and ventricular tachycardia (VT). In an attempt to differentiate bystander pathways from critical sites within a reentry circuit, we compared the relative timing of isolated potentials during VT and sinus rhythm.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46323/1/10840_2004_Article_5265641.pd

Mapping and Ablation of Frequent Post-Infarction Premature Ventricular Complexes

Mapping of Post-Infarction PVCs .  Introduction: Premature ventricular complexes (PVCs) occur frequently in patients with heart disease. The sites of origin of PVCs in patients with prior myocardial infarction and the response to catheter ablation have not been systematically assessed. Methods and Results: In 28 consecutive patients (24 men, age 60 ± 10, ejection fraction [EF] 0.37 ± 0.14) with remote myocardial infarction referred for catheter ablation of symptomatic refractory PVCs, the PVCs were mapped by activation mapping or pace mapping using an irrigated-tip catheter in conjunction with an electroanatomic mapping system. The site of origin (SOO) was classified as being within low-voltage (scar) tissue (amplitude ≤1.5 mV) or tissue with preserved voltage (>1.5 mV). The SOO was confined to endocardial scar tissue in 24/28 patients (86%). The SOO was outside of scar in 3 patients and could not be identified in 1 patient. At the SOO, local endocardial activation preceded the PVC by 46 ± 19 ms, and the electrogram amplitude during sinus rhythm was 0.48 ± 0.34 mV. The PVCs were effectively ablated in 25/28 patients (89%), resulting in a decrease in PVC burden on a 24-hour Holter monitor from 15.6 ± 12.3% to 2.4 ± 4.2% (P < 0.001). The SOO most often was confined to scar tissue located in the left ventricular septum and the papillary muscles. Conclusion: Similar to post-infarction ventricular tachycardia, PVCs after remote myocardial infarction most often originate within scar tissue. Catheter ablation of these PVCs has a high-success rate. (J Cardiovasc Electrophysiol, Vol. 21, pp. 1002-1008, September 2010)Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/79266/1/j.1540-8167.2010.01771.x.pd

Time‐ and Frequency‐Domain Characteristics of Atrial Electrograms During Sinus Rhythm and Atrial Fibrillation

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87064/1/j.1540-8167.2011.02022.x.pd