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Tijskens M, Abugattas JP, Thoen H, Strazdas A, Schwagten B, Wolf M, De Greef Y. Adding Electroanatomical Mapping to Cryoballoon Pulmonary Vein Isolation Improves 1-Year Clinical Outcome and Durability of Pulmonary Vein Isolation: A Propensity Score-Matched Analysis. J Cardiovasc Dev Dis 2024; 11:57. [PMID: 38392271 PMCID: PMC10889252 DOI: 10.3390/jcdd11020057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/28/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
Background: Adding electroanatomical left atrial (LA) voltage mapping to cryoballoon ablation (CBA) improves validation of acute pulmonary vein isolation (PVI). Aims: To determine whether the addition of mapping can improve outcome and PVI durability. Methods: One-year outcome and PV reconnection (PVR) rate at first repeat ablation were studied in 400 AF patients in a propensity-matched analysis (age, AF type, CHA2DS2-VASc score) between Achieve catheter-guided CBA with additional EnSite LA voltage maps performed pre- and post-CBA (mapping group; N = 200) and CT- and Achieve catheter-guided CBA (control group; N = 200). Clinical success was defined as freedom of documented AF or atrial tachycardia (AT) > 30 s. PV reconnection patterns were characterized in repeat ablations. Results: At 1 year, 77 (19.25%) patients had recurrence of AF/AT, significantly lower than in the mapping group: 21 (10.5%) vs. 56 (28%), p < 0.001. Procedure time was shorter (72.2 ± 25.4 vs. 78.2 ± 29.3 min, p = 0.034) and radiation exposure lower (4465.0 ± 3454.6 Gy.cm2 vs. 5940.5 ± 4290.5 Gy.cm2, p = 0.037). Use of mapping was protective towards AF/AT recurrence (HR = 0.348; 95% CI 0.210-0.579; p < 0.001), independent of persistent AF type (HR = 1.723; 95% CI 1.034-2.872; p = 0.037), and LA diameter (HR = 1.055; 95% CI 1.015-1.096; p = 0.006). At repeat ablation (N = 90), persistent complete PVI was seen in 14/20 (70.0%) versus 23/70 (32.9%) in the mapping and conventional group, respectively (p = 0.03). Reconnection rate of the right inferior PV was lower with mapping (10.0% vs. 34,3%, p = 0.035). Conclusions: Adding electroanatomical LA voltage mapping to CBA improves 1-year clinical outcome and lowers both procedure time and radiation exposure. At repeat, use of mapping increases complete persistent PVI mainly by improving PVI durability of the RIPV.
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Affiliation(s)
- Maxime Tijskens
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
- AZ Rivierenland Hospital, 2840 Bornem, Belgium
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1050 Brussels, Belgium
| | | | - Hendrik Thoen
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1050 Brussels, Belgium
| | - Antanas Strazdas
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1050 Brussels, Belgium
| | - Bruno Schwagten
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1050 Brussels, Belgium
| | - Michael Wolf
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
| | - Yves De Greef
- Department of Cardiology, ZNA Heart Centre Middelheim, 2020 Antwerp, Belgium
- Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, European Reference Networks Guard-Heart, 1050 Brussels, Belgium
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De Greef Y, Tijskens M, De Torres JPA, Sofianos D, Cecchini F, De Schouwer K, De Cocker J, Buysschaert I, Varnavas V, Wolf M. Electroanatomical mapping improves procedural outcomes of cryoballoon pulmonary vein isolation (the Achieve Plus study). J Interv Card Electrophysiol 2023; 66:923-930. [PMID: 36210397 DOI: 10.1007/s10840-022-01384-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/25/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Validation of pulmonary vein (PV) isolation (PVI) using only the Achieve catheter following cryoballoon ablation (CBA) is imperfect since pulmonary vein potentials (PVP) can be recorded in only 50-85% of the veins and residual PVP are found in up to 4.3-7.6% of the isolated veins in remapping studies. OBJECTIVE To study if addition of electroanatomical mapping to Achieve catheter-guided CBA is superior for PVI. METHODS One hundred patients were randomized between Achieve catheter-guided CBA (control group; N = 50) and Achieve catheter-guided CBA with additional EnSite voltage maps performed pre- and post-CBA (Achieve Plus group; N = 50). Confirmation of PVI was done by circular mapping catheter (CMC) and EnSite mapping by a second blinded operator. RESULTS Despite apparent PVI in all PVs after CBA, incomplete PVI was present in 0 out of 50 patients (0%) and 0 out of 204 PVs in the Achieve Plus group versus 6 patients out of 50 (12%; P = 0.012) and 6 out of 203 PVs (3%; P = 0.013) in the control group. All 6 non-isolated PVs could be successfully isolated by additional cryoapplications. Procedure time was longer in the Achieve Plus group (75.76 ± 21.65 vs 66.06 ± 16.83 min; P = 0.014) with equal fluoroscopy times (14.85 ± 6.41 vs 14.33 ± 8.55; P = 0.732). CONCLUSION The addition of electroanatomical EnSite mapping to the Achieve catheter improves the PVI rate of CBA and could be considered for future use. Design and Results of the Achieve Plus study. The Achieve Plus study shows that the addition of electro-anatomical EnSite mapping to the Achieve catheter improves PVI rate of CBA and could be considered for future use. See text for further explanation. ABBREVIATIONS CBA: cryoballoon ablation; PVI: pulmonary vein isolation.
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Affiliation(s)
- Yves De Greef
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium.
- Heart Rhythm Management Centre, University Hospital Brussels, Brussels, Belgium.
| | - M Tijskens
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium
| | | | - D Sofianos
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium
- Heart Rhythm Management Centre, University Hospital Brussels, Brussels, Belgium
| | - F Cecchini
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium
- Heart Rhythm Management Centre, University Hospital Brussels, Brussels, Belgium
| | - K De Schouwer
- Department of Cardiology, OLV Hospital Alost, Aalst, Belgium
| | - J De Cocker
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium
| | - I Buysschaert
- Department of Cardiology, Heart Centre AZ Sint Jan, Brugge, Belgium
| | - V Varnavas
- Department of Cardiology, University Hospital Saint-Luc UCL, Brussels, Belgium
| | - M Wolf
- Department of Cardiology, ZNA Heart Centre, Lindendreef 1, 2020, Antwerp, Belgium
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Johnson DC, Wissner E. Should voltage mapping be an integral part of the cryoballoon ablation procedure? J Interv Card Electrophysiol 2023; 66:517-518. [PMID: 36534324 DOI: 10.1007/s10840-022-01455-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Dana C Johnson
- Division of Cardiology, University of Illinois at Chicago, 840 S Wood St, S905, Chicago, IL, 60612, USA
| | - Erik Wissner
- Division of Cardiology, University of Illinois at Chicago, 840 S Wood St, S905, Chicago, IL, 60612, USA.
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Spera F, Narducci ML, Bencardino G, Perna F, Bisignani A, Pinnacchio G, Tondo C, Maggio R, Stabile G, Iacopino S, Tundo F, Ferraro A, De Simone A, Malacrida M, Pintus F, Crea F, Pelargonio G. Ultra-high-resolution assessment of lesion extension after cryoballoon ablation for pulmonary vein isolation. Front Cardiovasc Med 2022; 9:985182. [PMID: 36439999 PMCID: PMC9681817 DOI: 10.3389/fcvm.2022.985182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 10/14/2022] [Indexed: 01/30/2025] Open
Abstract
INTRODUCTION Unrecognized incomplete pulmonary vein (PV) isolation during the index procedure, can be a major cause of clinical recurrences of atrial fibrillation (AF) after cryoballoon (CB) ablation. We aimed to characterize the extension of the lesions produced by CB ablation and to assess the value of using an ultra-high resolution electroanatomic mapping (UHDM) system to detect incomplete CB lesions. MATERIALS AND METHODS Twenty-nine consecutive patients from the CHARISMA registry undergoing AF ablation at four Italian centers were prospectively evaluated. The Rhythmia™ mapping system and the Orion™ (Boston Scientific) mapping catheter were used to systematically map the left atrium and PVs before and after cryoablation. RESULTS A total of 116 PVs were targeted and isolated. Quantitative assessment of the lesions revealed a significant reduction of the antral surface area of the PV, resulting in an ablated area of 5.7 ± 0.7 cm2 and 5.1 ± 0.8 cm2 for the left PV pair and right PV pair, respectively (p = 0.0068). The mean posterior wall (PW) area was 22.9 ± 2 cm2 and, following PV isolation, 44.8 ± 6% of the PW area was ablated. After CB ablation, complete isolation of each PV was documented by the POLARMap™ catheter in all patients. By contrast, confirmatory UHDM and the Lumipoint™ tool unveiled PV signals in 1 out of 114 of the PVs (0.9%). Over 30-day follow-up, no major procedure-related adverse events were reported. After a mean follow-up of 333 days, 89.7% of patients were free from arrhythmia recurrence. CONCLUSION The lesion extension achieved by the new CB ablation system involved the PV antrum, with less than 50% of the PW remaining untouched. The new system, with short tip and circular mapping catheter, failed to achieve PV isolation in only 0.9% of all PVs treated. CLINICAL TRIAL REGISTRATION [http://clinicaltrials.gov/], identifier [NCT03793998].
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Affiliation(s)
- Francesco Spera
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Maria Lucia Narducci
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Gianluigi Bencardino
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Francesco Perna
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Antonio Bisignani
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Gaetano Pinnacchio
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | | | | | - Giuseppe Stabile
- Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Italy
- Mediterranea Cardiocentro, Naples, Italy
| | | | | | | | - Antonio De Simone
- Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Italy
| | | | | | - Filippo Crea
- Institute of Cardiology, Catholic University of Sacred Heart, Rome, Italy
| | - Gemma Pelargonio
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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Gheini A, Pourya A, Pooria A. Atrial Fibrillation and Ventricular Tachyarrhythmias: Advancements for Better Outcomes. Cardiovasc Hematol Disord Drug Targets 2021; 20:249-259. [PMID: 33001020 DOI: 10.2174/1871529x20666201001143907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/01/2020] [Accepted: 08/12/2020] [Indexed: 11/22/2022]
Abstract
Cardiac arrhythmias are associated with several cardiac diseases and are prevalent in people with or without structural and valvular abnormalities. Ventricular arrhythmias (VA) can be life threating and their onset require immediate medical attention. Similarly, atrial fibrillation and flutter lead to stroke, heart failure and even death. Optimal treatment of VA is variable and depends on the medical condition associated with the rhythm disorder (which includes reversible causes such as myocardial ischemia or pro-arrhythmic drugs). While an implanted cardioverter defibrillator is often indicated in secondary prevention of VA. This review highlights the newest advancements in these techniques and management of ventricular and atrial tachyarrhythmias, along with pharmacological therapy.
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Affiliation(s)
- Alireza Gheini
- Department of Cardiology, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | | | - Ali Pooria
- Department of Cardiology, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
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Gunawardene MA, Eickholt C, Akbulak RÖ, Jularic M, Klatt N, Hartmann J, Schlüter M, Meyer C, Willems S, Schaeffer B. Ultra–high‐density mapping of conduction gaps and atrial tachycardias: Distinctive patterns following pulmonary vein isolation with cryoballoon or contact–force‐guided radiofrequency current. J Cardiovasc Electrophysiol 2020; 31:1051-1061. [DOI: 10.1111/jce.14413] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/29/2020] [Accepted: 02/17/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Melanie A. Gunawardene
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- Department of CardiologyAsklepios Hospital St GeorgHamburg Germany
| | - Christian Eickholt
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- Department of CardiologyAsklepios Hospital St GeorgHamburg Germany
| | - Ruken Ö. Akbulak
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
| | - Mario Jularic
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- Department of CardiologyAsklepios Hospital St GeorgHamburg Germany
| | - Niklas Klatt
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
| | - Jens Hartmann
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- Department of CardiologyAsklepios Hospital St GeorgHamburg Germany
| | | | - Christian Meyer
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- DZHK (German Center for Cardiovascular Research), partner site Hamburg/Kiel/LübeckBerlin Germany
| | - Stephan Willems
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
- Department of CardiologyAsklepios Hospital St GeorgHamburg Germany
| | - Benjamin Schaeffer
- Department of Cardiac Electrophysiology, University Heart CenterUniversity Hospital Hamburg EppendorfHamburg Germany
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7
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Siebermair J, Neumann B, Risch F, Riesinger L, Vonderlin N, Koehler M, Lackermaier K, Fichtner S, Rizas K, Sattler SM, Sinner MF, Kääb S, Estner HL, Wakili R. High-density Mapping Guided Pulmonary Vein Isolation for Treatment of Atrial Fibrillation - Two-year clinical outcome of a single center experience. Sci Rep 2019; 9:8830. [PMID: 31222008 PMCID: PMC6586935 DOI: 10.1038/s41598-019-45115-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 05/29/2019] [Indexed: 11/11/2022] Open
Abstract
Pulmonary vein isolation (PVI) as interventional treatment for atrial fibrillation (AF) aims to eliminate arrhythmogenic triggers from the PVs. Improved signal detection facilitating a more robust electrical isolation might be associated with a better outcome. This retrospective cohort study compared PVI procedures using a novel high-density mapping system (HDM) with improved signal detection vs. age- and sex-matched PVIs using a conventional 3D mapping system (COM). Endpoints comprised freedom from AF and procedural parameters. In total, 108 patients (mean age 63.9 ± 11.2 years, 56.5% male, 50.9% paroxysmal AF) were included (n = 54 patients/group). Our analysis revealed that HDM was not superior regarding freedom from AF (mean follow-up of 494.7 ± 26.2 days), with one- and two-year AF recurrence rates of 38.9%/46.5% (HDM) and 38.9%/42.2% (COM), respectively. HDM was associated with reduction in fluoroscopy times (18.8 ± 10.6 vs. 29.8 ± 13.4 min; p < 0.01) and total radiation dose (866.0 ± 1003.3 vs. 1731.2 ± 1978.4 cGy; p < 0.01) compared to the COM group. HDM was equivalent but not superior to COM with respect to clinical outcome after PVI and resulted in reduced fluoroscopy time and radiation exposure. These results suggest that HDM-guided PVI is effective and safe for AF ablation. Potential benefits in comparison to conventional mapping systems, e.g. arrhythmia recurrence rates, have to be addressed in randomized trials.
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Affiliation(s)
- J Siebermair
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany.,Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - B Neumann
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - F Risch
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany
| | - L Riesinger
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany.,Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - N Vonderlin
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - M Koehler
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - K Lackermaier
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany
| | - S Fichtner
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany
| | - K Rizas
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - S M Sattler
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,Department of Cardiology, Heart Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - M F Sinner
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - S Kääb
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany.,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany
| | - H L Estner
- Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany
| | - R Wakili
- Department of Cardiology and Vascular Medicine, West-German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany. .,Department of Medicine I, University Hospital Munich, Ludwig-Maximilians University, Munich, Germany. .,German Cardiovascular Research Center (DZHK), partner site: Munich Heart Alliance, Munich, Germany.
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8
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Jilek C, Ullah W. Pulmonary vein reconnections or substrate in the left atrium: what is the reason for atrial fibrillation recurrences? A dialogue on a pressing clinical situation. Europace 2019; 21:i12-i20. [DOI: 10.1093/europace/euy289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 01/05/2019] [Indexed: 01/08/2023] Open
Affiliation(s)
- Clemens Jilek
- Internistisches Klinikum München Süd, Peter-Osypka-Heart Centre, Munich, Germany
| | - Waqas Ullah
- Cardiology Department, University Hospital Southampton, National Health Service Foundation Trust, Southampton, UK
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9
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Prochnau D, von Knorre K, Figulla HR, Schulze PC, Surber R. Efficacy of temperature-guided cryoballoon ablation without using real-time recordings - 12-Month follow-up. IJC HEART & VASCULATURE 2018; 21:50-55. [PMID: 30302369 PMCID: PMC6174823 DOI: 10.1016/j.ijcha.2018.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/13/2018] [Accepted: 09/29/2018] [Indexed: 12/22/2022]
Abstract
Background We sought to evaluate a temperature-guided approach of cryoballoon (CB) ablation without visualization of real-time recordings. Methods and results We analysed 166 patients (34.9% female, 60 ± 11 years) with paroxysmal or short-term persistent atrial fibrillation (AF). Comorbidities included diabetes mellitus (n = 28), coronary artery disease (n = 24), hypertension (n = 122), previous stroke or TIA > 3 months (n = 12). Cryoablation of the pulmonary veins (PV) was performed using first-generation (n = 78) and second-generation CB (n = 88). Two 5-minute freezes were performed for the first-generation and two 4-minute freezes for the second-generation CB with the intention to achieve a temperature drop below −40 °C. At 12-month follow-up, we observed overall freedom from AF in 92 patients (56.6%, mean time to AF recurrence 3.4 ± 2.9 months). There was a significant difference in freedom from AF between first-generation CB (45%) and second-generation CB (67%; p < 0.005). Complications were groin hematoma (4.8%) and phrenic nerve palsy (PVP) (2.4%). PVP disappeared after 12 months in all patients. Three patients developed cardiac tamponade (1.8%) that resolved without further sequelae after pericardiocentesis. Multivariate analysis revealed that only the achieved temperature in the right inferior PV (RIPV) was a predictor of long-term freedom from AF (OR 0.9; p = 0.014). Female gender was a predictor of AF recurrence (OR 6.1; p = 0.022). Conclusion Temperature-guided CB ablation without real-time recordings is feasible and safe without reducing the efficacy if second-generation CB is used. Deep nadir temperatures especially in the RIPV are necessary for long term-success.
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Affiliation(s)
- Dirk Prochnau
- Department of Internal Medicine I, Jena University Hospital, Jena, Germany.,Department of Internal Medicine I, Sophien- and Hufeland-Hospital Weimar, Weimar, Germany
| | | | | | | | - Ralf Surber
- Department of Internal Medicine I, Jena University Hospital, Jena, Germany
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