Use of electrical coupling information in AF catheter ablation: A prospective randomized pilot study

Gaspar, Thomas; Sih, Haris J.; Hindricks, Gerhard; Eitel, Charlotte; Sommer, Philipp; Kircher, Simon; Rolf, Sascha; Arya, Arash; Teplitsky, Liane; Piorkowski, Christopher

doi:10.1016/j.hrthm.2012.10.010

Cited by 20 publications

(19 citation statements)

References 14 publications

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“…This is in accordance with a previously published study on the use of contact force information [10], but in contrast with another study on the efficacy of acute PVI with contact information [16]. Indeed, the use of additional information during established procedures may in general lead to longer procedure duration.…”

Section: Discussionsupporting

confidence: 91%

“…used a design where acute PVI with and without catheter contact information was compared between (randomly assigned) left and right sided PVs of the same patient [16]. Those authors report a slightly longer duration (26.5 min vs. 23.5 min) of the PVIs performed with contact information [16]. A different approach was used in the study by Gaspar et al .…”

Section: Discussionmentioning

confidence: 99%

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Contact force mapping during catheter ablation for atrial fibrillation: procedural data and one-year follow-up

Wutzler

Huemer

Parwani

et al. 2014

aoms

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IntroductionPulmonary vein isolation (PVI) is the state-of-the-art treatment of atrial fibrillation (AF). Pulmonary vein reconnection is one of the main mechanisms of AF recurrence after ablation. Catheter-tissue contact is essential for effective ablation lesions. The aim of this study was to evaluate the impact of catheter contact monitoring during PVI on AF recurrence rate.Material and methodsOne hundred and forty-three patients who underwent PVI were analysed. In 31 patients, PVI was performed by monitoring the catheter-tissue contact with a contact force (CF) sensing catheter. One hundred and twelve patients in whom conventional PVI was performed without CF information served as the control group. Procedural data and recurrence rate within 12-month follow-up were compared.ResultsA significant reduction in procedure duration was seen in the CF mapping group (128.4 ±29 min vs. 157.7 ±30.8 min, p = 0.001). Complete pulmonary vein isolation was achieved in 100% of the patients. Rate of AF recurrence within 12 months after ablation was significantly lower in the contact force group (16.1%) when compared to the standard ablation group (36.6%) (p = 0.031).ConclusionsPulmonary vein isolation with the use of contact force information results in a shorter procedure duration and a lower rate of AF recurrence after 12 months compared to conventional PVI without this information. Catheter-tissue contact monitoring may have a beneficial effect on mid-term and long-term results of PVI procedures.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Contact force mapping during catheter ablation for atrial fibrillation: procedural data and one-year follow-up

Wutzler

Huemer

Parwani

et al. 2014

aoms

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“…The index requires scaling to the individual patient, which needs to be repeated every 30 minutes to adapt to shifts in the baseline values during the procedure. 13 Measurement and validation of the CF surrogate ECI were performed in the left atrium (LA) in patients undergoing AF ablation compared to unambiguous qualities of contact as determined by fluoroscopy, tactile feedback, and electrograms.…”

Section: Contemporary Assessment Of Cfmentioning

confidence: 99%

“…13 However, ECI and the nature of relative changes during tissue contact are not fully understood and remain more complicated than physical measures of CF. Individual scaling and the requirement for frequent calibration makes it difficult to compare different patients.…”

Section: Contemporary Assessment Of Cfmentioning

confidence: 99%

Real-Time Contact Force Measurement

Shah

Namdar

2015

Circ: Arrhythmia and Electrophysiology

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“…In a small number of patients, ablation force-time integral has been correlated with late gadolinium enhancement on MRI [42]. The use of electrical coupling information that can be derived from impedance-based measurements (St Jude Medical) was associated with higher rates of PVI after anatomical encircling in a pilot study [43].…”

Section: • • Facilitating Catheter Manipulation and Delivery Of Effectimentioning

confidence: 99%

Catheter Ablation of Persistent Atrial Fibrillation

Rajappan

Ginks

2014

Future Cardiol.

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Catheter ablation of atrial fibrillation (AF) is performed increasingly worldwide and with the development of new technologies the procedures have become safer and more effective after a single attempt, particularly with paroxysmal AF. However, success rates for persistent AF ablation remain far lower than paroxysmal AF and there is large variation in the strategies used worldwide. This review describes the background to persistent AF ablation, the different strategies used and their associated risks and benefits, developing technologies and the authors' perspective on the future of this rapidly evolving area.

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Use of electrical coupling information in AF catheter ablation: A prospective randomized pilot study

Cited by 20 publications

References 14 publications

Contact force mapping during catheter ablation for atrial fibrillation: procedural data and one-year follow-up

Contact force mapping during catheter ablation for atrial fibrillation: procedural data and one-year follow-up

Real-Time Contact Force Measurement

Catheter Ablation of Persistent Atrial Fibrillation

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