Zusammenfassung
Hintergrund
Die Kryoballonablation ist ein Standardverfahren zur Isolation der Pulmonalvenen bei symptomatischem Vorhofflimmern. Die zweite Generation des Kryoballons wurde 2012 eingeführt, eine höhere Effizienz aufgrund mehrerer Verbesserungen des Systems wurde erwartet.
Ziel der Arbeit und Methoden
Es wird ein Überblick über die Neuerungen in der Kryoballonablation und über Konsequenzen in der Anwendung auf Grundlage einer PubMed-Literaturrecherche und unter Berücksichtigung eigener Erfahrungen gegeben.
Ergebnisse und Diskussion
Die Weiterentwicklungen der Kryoballontechnik haben die Effizienz des Verfahrens weiter gesteigert. Um trotz der verbesserten Wirksamkeit Nebenwirkungen, wie die rechtsseitige Phrenikusparese oder Ösophagusläsionen zu verhindern, ist besondere Sorgfalt erforderlich. Empirische Abbruchkriterien werden etabliert. Eine Zunahme klinisch relevanter Komplikationen wurde nicht beobachtet. Ob Empfehlungen für eine gezielte Titration der Energie in Zukunft mit dem neuen Ballon möglich sind, muss geklärt werden. Prospektive Studien sind unterwegs, um die Kryoballon- und die RF-Ablation multizentrisch direkt zu vergleichen und um den Stellenwert der Kryoballonablation als Erstlinientherapie zu klären.
Abstract
Background
Cryoballoon ablation is nowadays a standard approach for pulmonary vein isolation in symptomatic atrial fibrillation. The second generation cryoballoon was introduced in 2012 and modifications and enhancement to the system promised a higher efficiency.
Objectives, materials and methods
A comprehensive overview of advances in cryoballoon ablation is provided and the consequences for daily practice are described based on a PubMed literature search, taking into account own experiences.
Results and conclusion
Advances in cryoballoon ablation result in a significantly higher efficiency. To maintain the overall safety of the procedure and to avoid phrenic nerve palsy and esophageal lesions, special care needs to be taken by following some safety aspects and cut-off criteria. More data are necessary to clarify if recommendations for cryoenergy titration with the new balloon are reasonable. Ongoing prospective studies comparing cryoballoon and radiofrequency (RF) ablation will give answers to the question which energy source is more favorable, and upcoming studies will evaluate the impact of cryoballoon ablation as a first line treatment option.
Literatur
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Dr. Straube, Dr. Dorwarth: Vortragshonorare und finanzielle Unterstützung für Fortbildungsreisen von Medtronic GmbH, CoreLab Tätigkeit für die FIRE&ICE Studie. Prof. Dr. Hoffmann: Vortragshonorare von Medtronic GmbH, Hauptprüfer der FREEZE Cohort Study, durchgeführt vom IHF Ludwigshafen und finanziell von der Medtronic GmbH unterstützt.
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Straube, F., Dorwarth, U. & Hoffmann, E. Fortschritte der Kryoballon-Technik. Herzschr Elektrophys 25, 230–235 (2014). https://doi.org/10.1007/s00399-014-0329-3
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DOI: https://doi.org/10.1007/s00399-014-0329-3