scholarly journals Ablation Index and Surround Flow Catheter Irrigation

2017 ◽  
Vol 3 (10) ◽  
pp. 1080-1088 ◽  
Author(s):  
Waqas Ullah ◽  
Ross J. Hunter ◽  
Malcolm C. Finlay ◽  
Ailsa McLean ◽  
Mehul B. Dhinoja ◽  
...  
Keyword(s):  
Ablation Index ◽  
Catheter Irrigation

scholarly journals Performance and Safety of Temperature- and Flow-Controlled Radiofrequency Ablation in Ablation Index–Guided Pulmonary Vein Isolation

2021 ◽  
Vol 7 (3) ◽  
pp. 408-409
Author(s):  
Alexandre Almorad ◽  
Jean-Yves Wielandts ◽  
Milad El Haddad ◽  
Sébastien Knecht ◽  
René Tavernier ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Ablation Index

scholarly journals Outcomes of Mastoidectomy With Antibiotic Catheter Irrigation for Patients With Draining Ventilation Tubes

2021 ◽  
pp. 014556132110257
Author(s):  
Joel W. Jones ◽  
Daniel P. Ballard ◽  
Todd A. Hillman ◽  
Douglas A. Chen
Keyword(s):  
Chart Review ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Otitis Media With Effusion ◽  
Tympanostomy Tube ◽  
Indwelling Catheter ◽  
Intravenous Antibiotics ◽  
Significant Difference ◽  
Ventilation Tubes ◽  
Catheter Irrigation

Objectives: To evaluate the effectiveness of mastoidectomy with antibiotic catheter irrigation in patients with chronic tympanostomy tube otorrhea. Methods: A chart review of adult and pediatric patients with persistent tympanostomy tube otorrhea who had failed outpatient medical management and underwent mastoidectomy with placement of a temporary indwelling catheter for antibiotic instillation was performed. Patients were retrospectively followed for recurrent drainage after 2 months and outcomes were categorized as resolution (0-1 episodes of otorrhea or otitis media with effusion during follow-up), improvement (2-3 episodes), or continued episodic (>3 episodes). Results: There were 22 patients and 23 operated ears. Median age was 46 years (interquartile range, IQR = 29-65). The median duration of otorrhea from referral was 5.5 months (IQR = 2.8-12). Following surgery, 14 ears had resolution of drainage, 6 had improvement, and 3 had episodic. The observed percentage of resolved/improved ears (87%) was significant ( P = .0005, 95% CI = 67.9%-95.5%). Median follow-up time was 25 months (IQR = 12-59). Pre and postoperative pure tone averages improved (difference of medians = −3.3 dB, P = .02) with no significant difference in word recognition scores ( P = .68). Methicillin-resistant Staphylococcus aureus was the most common isolated microbe while no growth was most frequently noted on intraoperative cultures. Conclusions: Mastoidectomy with antibiotic catheter irrigation may be an effective surgical strategy, and single stage alternative to intravenous antibiotics, for select patients with persistent tube otorrhea who have failed topical and oral antibiotics.

A multicentered evaluation of ablation at higher power guided by ablation index: Establishing ablation targets for pulmonary vein isolation

2019 ◽  
Vol 30 (3) ◽  
pp. 357-365 ◽  
Author(s):  
Gurpreet Dhillon ◽  
Syed Ahsan ◽  
Shohreh Honarbakhsh ◽  
Wei Lim ◽  
Marco Baca ◽  
...  
Keyword(s):  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Ablation Index ◽  
Higher Power

scholarly journals Myocardial injury after pulmonary vein isolation: fire versus ice

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
A R Morgado Gomes ◽  
N S C Antonio ◽  
S Silva ◽  
M Madeira ◽  
P Sousa ◽  
...  
Keyword(s):  
Pulmonary Vein ◽  
Pulmonary Vein Isolation ◽  
Troponin I ◽  
Surrogate Marker ◽  
High Sensitivity ◽  
Cryoballoon Ablation ◽  
Single Shot ◽  
High Sensitivity Troponin ◽  
Ablation Index ◽  
Significant Difference

Abstract Introduction The cornerstone of atrial fibrillation (AF) catheter ablation is pulmonary vein isolation (PVI), either using point-by-point radiofrequency ablation (RF) or single-shot ablation devices, such as cryoballoon ablation (CB). However, achieving permanent transmural lesions is difficult and pulmonary vein (PV) reconnection is common. Elevation of high-sensitivity Troponin I (hsTnI) may be used as a surrogate marker for transmural lesions. Still, data regarding the comparison of hsTnI increase after PVI with RF or cryo-energy is controversial. Purpose The aim of this study is to compare the magnitude of hsTnI elevation after PVI with CB versus RF using ablation index guidance. Methods Prospective study of 60 patients admitted for first ablation procedure of paroxysmal or persistent AF in a single tertiary Cardiology Department. Thirty patients were submitted to PVI using CB and 30 patients were submitted to RF, using CARTO® mapping system and ablation index guidance. Patients with atrial flutter were excluded. Baseline characteristics were compared between groups, as well as hsTnI before and after the procedure. Results Mean age was 57.9±12.3 years old, 62% of patients were male and 77% had paroxysmal AF. There were no significant differences between groups regarding gender, age, prevalence of hypertension, dyslipidaemia, diabetes, obesity or AF type. There was also no significant difference in electrical cardioversion need during the procedure. HsTnI median value before ablation was 1.90±1.98 ng/dL. Postprocedural hsTnI was significantly higher in CB-group (6562.7±4756.2 ng/dL versus 1564.3±830.7 ng/dL in RF-group; P=0.001). Regarding periprocedural complications, there was only one case of mild pericardial effusion in RF-group associated with postablation hsTnI of 1180.0 ng/dL. Conclusions High-sensitivity Troponin I was significantly elevated after PVI, irrespective of the ablation technique. In CB-group, hsTnI elevation was significantly higher than in RF-group. This disparity may reflect more extensive lesions with cryoablation, without compromising safety. Longterm studies are needed to understand whether this hsTnI elevation is predictive of a lower AF recurrence rate. FUNDunding Acknowledgement Type of funding sources: None.

scholarly journals A multi-centre experience of ablation index for evaluating lesion delivery in cavotricuspid isthmus dependent atrial flutter

2020 ◽  
Author(s):  
Edd Maclean ◽  
Ron Simon ◽  
Richard Ang ◽  
Gurpreet Dhillon ◽  
Syed Ahsan ◽  
...  
Keyword(s):  
Atrial Flutter ◽  
Cavotricuspid Isthmus ◽  
Ablation Index
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