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Duncker D, Albert K, Rillig A, Sommer P, Heeger CH, Gunawardene M, Rolf S, Jansen H, Estner H, Althoff T, Maurer T, Tilz R, Iden L, Johnson V, Steven D. [Practical guidance for the implantation of non-transvenous ICD systems]. Herzschrittmacherther Elektrophysiol 2024; 35:226-233. [PMID: 39168897 PMCID: PMC11347474 DOI: 10.1007/s00399-024-01042-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 08/06/2024] [Indexed: 08/23/2024]
Abstract
As an alternative to transvenous ICD systems, two non-transvenous ICD systems have been established in recent years: The subcutaneous ICD (S-ICD), which has been established for several years, has a presternal electrode that is implanted subcutaneously and offers a shock function and, to a limited extent, post-shock pacing. In addition, the extravascular ICD (EV-ICD) has been available in Europe since 2023 which does not require transvenous electrodes and offers the option of providing patients with antibradycardic and antitachycardic stimulation in combination with a conventional ICD function. The lead of this device is implanted substernally. Initial implantation results are promising in terms of safety and effectiveness. Both systems avoid possible complications of transvenous electrodes. This article provides practical guidance for the implantation technique and possible complications.
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Affiliation(s)
- David Duncker
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland.
| | - Karolin Albert
- Hannover Herzrhythmus Centrum, Klinik für Kardiologie und Angiologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - Andreas Rillig
- Universitäres Herzzentrum Hamburg, Universitätsklinikum Eppendorf Hamburg, Hamburg, Deutschland
| | - Philipp Sommer
- Klinik für Elektrophysiologie und Rhythmologie, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Medizinische Fakultät der Universität Bielefeld, Bad Oeynhausen, Deutschland
| | | | - Melanie Gunawardene
- Klinik für Kardiologie und internistische Intensivmedizin, Asklepios Klinik St. Georg, Hamburg, Deutschland
| | - Sascha Rolf
- Klinik für Innere Medizin mit Schwerpunkt Kardiologie, DRK Kliniken Berlin Westend, Berlin, Deutschland
| | | | - Heidi Estner
- Medizinische Klinik und Poliklinik I, LMU Klinikum München, München, Deutschland
| | - Till Althoff
- Arrhythmia Section, Department of Cardiology, CLINIC Barcelona University Hospital, Barcelona, Spanien
| | - Tilman Maurer
- Klinik für Kardiologie und internistische Intensivmedizin, Asklepios Klinik St. Georg, Hamburg, Deutschland
- CardioMed Hamburg, Hamburg, Deutschland
- Klinik für Kardiologie und internistische Intensivmedizin, Asklepios Klinik Nord, Hamburg, Deutschland
| | - Roland Tilz
- Klinik für Rhythmologie, Universitäres Herzzentrum Schleswig-Holstein Lübeck, Lübeck, Deutschland
- Deutsches Zentrum für Herzkreislaufforschung (DZHK), Partner Site Hamburg/Kiel/Lübeck, Lübeck, Deutschland
| | - Leon Iden
- Herz- und Gefäßzentrum Segeberger Kliniken, Bad Segeberg, Deutschland
| | - Victoria Johnson
- ZIM - Med. Klinik 3 - Kardiologie, Angiologie, UHF - Universitäres Herz- und Gefässzentrum, Frankfurt, Deutschland
| | - Daniel Steven
- Abteilung für Elektrophysiologie, Herzzentrum der Uniklinik Köln, Köln, Deutschland
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2
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Budrejko S, Zienciuk-Krajka A, Daniłowicz-Szymanowicz L, Kempa M. Comparison of Preoperative ECG Screening and Device-Based Vector Analysis in Patients Receiving a Subcutaneous Implantable Cardioverter-Defibrillator. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2186. [PMID: 38138289 PMCID: PMC10745078 DOI: 10.3390/medicina59122186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/06/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: Subcutaneous implantable cardioverter-defibrillators (S-ICDs) provide protection against sudden cardiac death from outside the cardiovascular system. ECG screening is a prerequisite for implantation, but the reproducibility of its results post-operatively in the device is only partial. We aimed to compare the results of ECG screening with device-based sensing vector analysis. Materials and Methods: We screened the hospital records of all S-ICD recipients in our clinic. All of them had pre-operative ECG screening performed (primary, secondary, and alternate vectors). The results were compared with device-based vector analysis to determine the relation of the pre- and post-operative vector availability. Results: Complete ECG screening and device-based vector analysis were obtained for 103 patients. At least two acceptable vectors were found in 97.1% of the patients pre-operatively and in 96.1% post-operatively. When comparing vectors in terms of agreement (OK or FAIL) pre- and post-operatively, in 89.3% of the patients, the result for the primary vector was the same in both situations; for the secondary, it was in 84.5%, and for the alternate, it was in 74.8% of patients, respectively. In 55.3% of patients, all three vectors were labeled the same (OK or FAIL); in 37.9%, two vectors had the same result, and in 6.8%, only one vector had the same result pre- and post-operatively. The number of available vectors was the same pre- and post-operatively in 62.1% of patients, while in 15.5%, it was lower, and in 22.3% of patients, it was higher than observed during screening. Conclusions: Routine clinical pre-operative screening allowed for a good selection of candidates for S-ICD implantation. All patients had at least one vector available post-operatively. The final number of vectors available in the device-based analysis in most patients was at least the same (or higher) than during screening. The repeatability of the positive result for a single vector was high.
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Affiliation(s)
- Szymon Budrejko
- Department of Cardiology and Electrotherapy, Faculty of Medicine, Medical University of Gdansk, Smoluchowskiego 17, 80-214 Gdansk, Poland; (A.Z.-K.); (L.D.-S.); (M.K.)
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3
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Fukunaga H, Inoue K, Sekiguchi Y, Nitta J, Isobe M. Successful repositioning of the subcutaneous implantable cardioverter-defibrillator lead to avoid inappropriate shock. J Arrhythm 2023; 39:74-77. [PMID: 36733326 PMCID: PMC9885306 DOI: 10.1002/joa3.12805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/10/2022] [Accepted: 12/22/2022] [Indexed: 01/05/2023] Open
Affiliation(s)
| | - Kanki Inoue
- Department of CardiologySakakibara Heart InstituteTokyoJapan
| | - Yukio Sekiguchi
- Department of CardiologySakakibara Heart InstituteTokyoJapan
| | - Junichi Nitta
- Department of CardiologySakakibara Heart InstituteTokyoJapan
| | - Mitsuaki Isobe
- Department of CardiologySakakibara Heart InstituteTokyoJapan
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4
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Healey JS, Krahn AD, Bashir J, Amit G, Philippon F, McIntyre WF, Tsang B, Joza J, Exner DV, Birnie DH, Sadek M, Leong DP, Sikkel M, Korley V, Sapp JL, Roux JF, Lee SF, Wong G, Djuric A, Spears D, Carroll S, Crystal E, Hruczkowski T, Connolly SJ, Mondesert B. Perioperative Safety and Early Patient and Device Outcomes Among Subcutaneous Versus Transvenous Implantable Cardioverter Defibrillator Implantations : A Randomized, Multicenter Trial. Ann Intern Med 2022; 175:1658-1665. [PMID: 36343346 DOI: 10.7326/m22-1566] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Implantable cardioverter defibrillators (ICDs) improve survival in patients at risk for cardiac arrest, but are associated with intravascular lead-related complications. The subcutaneous ICD (S-ICD), with no intravascular components, was developed to minimize lead-related complications. OBJECTIVE To assess key ICD performance measures related to delivery of ICD therapy, including inappropriate ICD shocks (delivered in absence of life-threatening arrhythmia) and failed ICD shocks (which did not terminate ventricular arrhythmia). DESIGN Randomized, multicenter trial. (ClinicalTrials.gov: NCT02881255). SETTING The ATLAS trial. PATIENTS 544 eligible patients (141 female) with a primary or secondary prevention indication for an ICD who were younger than age 60 years, had a cardiogenetic phenotype, or had prespecified risk factors for lead complications were electrocardiographically screened and 503 randomly assigned to S-ICD (251 patients) or transvenous ICD (TV-ICD) (252 patients). Mean follow-up was 2.5 years (SD, 1.1). Mean age was 49.0 years (SD, 11.5). MEASUREMENTS The primary outcome was perioperative major lead-related complications. RESULTS There was a statistically significant reduction in perioperative, lead-related complications, which occurred in 1 patient (0.4%) with an S-ICD and in 12 patients (4.8%) with TV-ICD (-4.4%; 95% CI, -6.9 to -1.9; P = 0.001). There was a trend for more inappropriate shocks with the S-ICD (hazard ratio [HR], 2.37; 95% CI, 0.98 to 5.77), but no increase in failed appropriate ICD shocks (HR, 0.61 (0.15 to 2.57). Patients in the S-ICD group had more ICD site pain, measured on a 10-point numeric rating scale, on the day of implant (4.2 ± 2.8 vs. 2.9 ± 2.2; P < 0.001) and 1 month later (1.3 ± 1.8 vs. 0.9 ± 1.5; P = 0.035). LIMITATION At present, the ATLAS trial is underpowered to detect differences in clinical shock outcomes; however, extended follow-up is ongoing. CONCLUSION The S-ICD reduces perioperative, lead-related complications without significantly compromising the effectiveness of ICD shocks, but with more early postoperative pain and a trend for more inappropriate shocks. PRIMARY FUNDING SOURCE Boston Scientific.
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Affiliation(s)
- Jeff S Healey
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Andrew D Krahn
- Centre for Cardiovascular Innovation, University of British Columbia, Vancouver, British Columbia, Canada (A.D.K., J.B.)
| | - Jamil Bashir
- Centre for Cardiovascular Innovation, University of British Columbia, Vancouver, British Columbia, Canada (A.D.K., J.B.)
| | - Guy Amit
- McMaster University, Hamilton, Ontario, Canada (G.A.)
| | - François Philippon
- Institut Universitaire de Cardiologie et de Pneumologie de Québec, Laval University, Quebec City, Quebec, Canada (F.P.)
| | - William F McIntyre
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Bernice Tsang
- Southlake Regional Hospital, Newmarket, Ontario, Canada (B.T.)
| | | | - Derek V Exner
- University of Calgary, Calgary, Alberta, Canada (D.V.E.)
| | - David H Birnie
- University of Ottawa, Ottawa, Ontario, Canada (D.H.B., M.S.)
| | - Mouhannad Sadek
- University of Ottawa, Ottawa, Ontario, Canada (D.H.B., M.S.)
| | - Darryl P Leong
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Markus Sikkel
- University of Victoria, Victoria, British Columbia, Canada (M.S.)
| | - Victoria Korley
- University of Toronto, Toronto, Ontario, Canada (V.K., E.C.)
| | - John L Sapp
- Dalhousie University and QEII Health Sciences Centre, Halifax, Nova Scotia, Canada (J.L.S.)
| | | | - Shun Fu Lee
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Gloria Wong
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Angie Djuric
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
| | - Danna Spears
- University Health Network, University of Toronto, Toronto, Ontario, Canada (D.S.)
| | - Sandra Carroll
- Population Health Research Institute, Hamilton, and School of Nursing, McMaster University, Hamilton, Ontario, Canada (S.C.)
| | - Eugene Crystal
- University of Toronto, Toronto, Ontario, Canada (V.K., E.C.)
| | | | - Stuart J Connolly
- Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
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5
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Perel N, Tovia-Brodie O, Rav Acha M, Accinelli S, Levy EE, Glikson M, Michowitz Y. Lack of magnet use during chest compressions leads to multiple inappropriate shocks by a subcutaneous implantable cardioverter-defibrillator. HeartRhythm Case Rep 2022; 8:815-819. [PMID: 36620368 PMCID: PMC9811013 DOI: 10.1016/j.hrcr.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Nimrod Perel
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Faculty of Medicine Hebrew University, Jerusalem, Israel
| | - Oholi Tovia-Brodie
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Faculty of Medicine Hebrew University, Jerusalem, Israel
| | - Moshe Rav Acha
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Faculty of Medicine Hebrew University, Jerusalem, Israel
| | | | | | - Michael Glikson
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Faculty of Medicine Hebrew University, Jerusalem, Israel
| | - Yoav Michowitz
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Faculty of Medicine Hebrew University, Jerusalem, Israel,Address reprint requests and correspondence: Dr Yoav Michowitz, Department of Cardiology, Shaare Zedek Hospital, 12 Shmuel Beit St, Jerusalem 9103102, Israel.
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6
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Hakamata T, Otsuki S, Izumi D, Sakaguchi Y, Suzuki N, Ikami Y, Hasegawa Y, Yagihara N, Iijima K, Chinushi M, Koichi F, Inomata T. Clinical impact of ECG change on oversensing of subcutaneous implantable cardioverter-defibrillators. Heart Rhythm 2022; 19:1704-1711. [PMID: 35688344 DOI: 10.1016/j.hrthm.2022.05.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 05/01/2022] [Accepted: 05/13/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Inappropriate shocks delivered from subcutaneous implantable cardioverter-defibrillators (S-ICD) are most frequently caused by cardiac oversensing. However, the predictors for oversensing of S-ICD remain unclear. OBJECTIVE We aimed to investigate the predictors for oversensing of S-ICD, especially clinical impact of ECG change. METHODS We retrospectively enrolled 99 consecutive patients who underwent S-ICD implantation between 2013 and 2021. Oversensing events were defined as inappropriate charge of the capacitors induced by cardiac or noncardiac signals other than tachycardia. RESULTS During a median 34 month (IQR 20-50 months) of the follow-up period, 11 of the 99 patients experienced 34 oversensing events and 4 patients received inappropriate shocks during their events. Six patients exhibited ECG changes (bundle branch block, 3; ventricular pacing, 1; inverted T wave, 1; poor R progression, 1) during follow-up period. Oversensing events were observed in four of the six patients with ECG changes (67%), and three patients underwent S-ICD removal because of inevitable shock. Contrastingly, among the remaining patients without ECG change, all 7 patients who experienced oversensing events could continue using S-ICD with reprogramming sensing vector and/or restriction of excessive exercise. Logistic regression analysis showed lower voltage of Sokolow-Lyon ECG (V1S+V5R) was the predictor of oversensing event among the patients without ECG change. When the cut off value was 2.1mV, the sensitivity, specificity, positive predictive value, and negative predictive value were 85.7%, 62.7%, 15.7%, and 98.1%, respectively. CONCLUSION Unavoidable oversensing resulting in S-ICD removal is caused by ECG changes. Oversensing in patients without ECG change can be managed.
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Affiliation(s)
- Takahiro Hakamata
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Sou Otsuki
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
| | - Daisuke Izumi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuta Sakaguchi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Naomasa Suzuki
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yasuhiro Ikami
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yuki Hasegawa
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Nobue Yagihara
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kenichi Iijima
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Masaomi Chinushi
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | | | - Takayuki Inomata
- Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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Khanra D, Hamid A, Patel P, Tomson J, Abdalla A, Khan N, Dowd R, Chandan N, Osagie C, Jinadu T, Velu S, Arya A, Spencer C, Barr C, Petkar S. A real-world experience of subcutaneous and transvenous implantable cardiac defibrillators-comparison with the PRAETORIAN study. J Arrhythm 2022; 38:199-212. [PMID: 35387142 PMCID: PMC8977574 DOI: 10.1002/joa3.12687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 01/03/2022] [Accepted: 01/05/2022] [Indexed: 11/06/2022] Open
Abstract
Background PRAETORIAN is the first randomized controlled trial that demonstrated the noninferiority of subcutaneous ICD (S-ICD) in comparison with transvenous ICD (TV-ICD). We retrospectively reviewed electronic records of patients with ICD implanted over the past 6 years, with the primary objective to compare our real-world single tertiary center experience with the randomized data from the PRAETORIAN study. Methods Seventy S-ICD patients were compared with 197 TV-ICD patients, from July 2014 to June 2020 retrospectively, over a median period of 1304 days (296-2451 days). Primary composite endpoints included inappropriate shocks and device-related malfunctions. Results Patients with S-ICD implantation were younger than those who received TV-ICD (mean, 49.7 years vs 63.9 years, p < .001). About 31.4% of S-ICDs were implanted for secondary prevention, and 58.6% of S-ICD patients had ischemic cardiomyopathy (ICM) with a median left ventricular ejection fraction of 32.5% (range: 10-67%). S-ICDs and TV-ICD had statistically similar inappropriate shocks (4.3% vs 4.6%, p = .78), device-related complications (11.4% vs 9.1%, p = .93), and the overall primary endpoints (15.7% vs 13.7%, p = .68). The findings remained the same even after age and gender adjustments and time-dependent analysis. Conclusion Although single-center experience with a small number of S-ICD patients, results of the PRAETORIAN study has been replicated in our real-world experience of S-ICD and TV-ICD implantations across diverse etiologies, indications, and age groups confirming the comparable performance of S-ICD and TV-ICD when implanted in selected patients.
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Affiliation(s)
- Dibbendhu Khanra
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Abdul Hamid
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Peysh Patel
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - John Tomson
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Ahmed Abdalla
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Nasrin Khan
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Rory Dowd
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Nakul Chandan
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Christopher Osagie
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Tomilola Jinadu
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Selvakumar Velu
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Anita Arya
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Charles Spencer
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Craig Barr
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
| | - Sanjiv Petkar
- New Cross Hospital, Heart and Lung Centre, Division of Electrophysiology and DevicesRoyal Wolverhampton NHS TrustUK
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Ali H, Lupo P, Foresti S, De Ambroggi G, De Lucia C, Penela D, Turturiello D, Paganini EM, Cappato R. Air entrapment as a potential cause of early subcutaneous implantable cardioverter defibrillator malfunction: a systematic review of the literature. Europace 2022; 24:1608-1616. [PMID: 35639806 DOI: 10.1093/europace/euac046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/17/2022] [Indexed: 11/13/2022] Open
Abstract
AIMS Air entrapment (AE) has been reported as a potential cause of early inappropriate shocks (ISs) following subcutaneous implantable cardioverter defibrillator (S-ICD) implantation, but a cause-effect relationship is not always evident. This systematic review aims to analyse this phenomenon concerning implantation techniques, electrogram (EGM) features, radiologic findings, and patient management. METHODS AND RESULTS A systematic search was conducted using PubMed, Embase, and Google Scholar databases following the PRISMA guidelines to obtain all available literature data since 2010 on S-ICD malfunctions possibly due to AE. The final analysis included 54 patients with AE as a potential cause of S-ICD malfunction. Overall, the aggregate incidence of this condition was 1.2%. Of ICD malfunctions possibly due to AE, 93% were ISs, and 95% were recorded within the first week following implantation. Radiologic diagnosis of AE was confirmed in 28% of the entire study cohort and in 68% of patients in whom this diagnostic examination was reported. At the time of device malfunction, EGMs showed artefacts, baseline drift, and QRS voltage reduction in 95, 76, and 67% of episodes, respectively. Management included ICD reprogramming or testing, no action (observation), and invasive implant revision in 57, 33, and 10% of patients, respectively. No recurrences occurred during follow-up, irrespective of management performed. CONCLUSIONS Device malfunction possibly due to AE may occur in ∼1% of S-ICD recipients. Diagnosis is strongly suggested by early occurrence, characteristic EGM features, and radiologic findings. Non-invasive management, principally device reprogramming, appears to be effective in most patients.
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Affiliation(s)
- Hussam Ali
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Pierpaolo Lupo
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Sara Foresti
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Guido De Ambroggi
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Carmine De Lucia
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Diego Penela
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Dario Turturiello
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Edoardo Maria Paganini
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
| | - Riccardo Cappato
- Arrhythmia & Electrophysiology Center, IRCCS-MultiMedica Group, Via Milanese 300, 20099 Sesto San Giovanni, Milan, Italy
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9
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Markman TM, Brozoski J, Bode W, Nazarian S. A novel use of a subcutaneous implantable cardioverter-defibrillator algorithm to detect bradycardia. HeartRhythm Case Rep 2022; 8:164-166. [PMID: 35492847 PMCID: PMC9039570 DOI: 10.1016/j.hrcr.2021.11.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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10
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Elliott MK, Sidhu BS, Mehta VS, Gould J, Martic D, Rinaldi CA. The importance of leadless pacemaker positioning in relation to subcutaneous implantable cardioverter-defibrillator sensing in completely leadless cardiac resynchronization and defibrillation systems. HeartRhythm Case Rep 2021; 7:628-632. [PMID: 34552857 PMCID: PMC8441212 DOI: 10.1016/j.hrcr.2021.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Affiliation(s)
- Mark K Elliott
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Baldeep Singh Sidhu
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Vishal S Mehta
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Justin Gould
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Dejana Martic
- Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Christopher A Rinaldi
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.,Department of Cardiology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
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A novel cause of inappropriate subcutaneous implantable cardioverter-defibrillator therapies after a generator change. HeartRhythm Case Rep 2021; 7:562-565. [PMID: 34434709 PMCID: PMC8377268 DOI: 10.1016/j.hrcr.2021.05.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Sudden depression of R-wave amplitude in a patient who underwent subcutaneous implantable cardioverter-defibrillator implantation. HeartRhythm Case Rep 2021; 7:449-452. [PMID: 34307027 PMCID: PMC8283540 DOI: 10.1016/j.hrcr.2021.03.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Predicting inappropriate S-ICD® episodes by simple 12-lead surface ECG parameters. J Electrocardiol 2021; 67:89-93. [PMID: 34091368 DOI: 10.1016/j.jelectrocard.2021.05.011] [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: 03/13/2021] [Revised: 05/02/2021] [Accepted: 05/25/2021] [Indexed: 11/22/2022]
Abstract
AIMS The present study aims at analyzing the role of a preimplantation 12-lead electrocardiogram (ECG) on the prediction of inappropriate S-ICD® episodes. METHODS N=116 screened patients (pts) with an S-ICD® and a follow-up of at least 6 months were included. A preimplantation 12-lead ECG (50 mm/s, 10 mm/mV) was analyzed with regard to QRS and T-wave amplitude, T wave concordance or discordance and QRS/T wave ratio in all 12 leads. To ensure an exact determination of parameters Datinf® Measure software was used. Results were correlated to the occurrence of oversensing of cardiac signals during follow-up. RESULTS N = 116 pts. (63,8% male, mean age 40,9 ± 15,5 years) were included (primary prevention in 47.4% of pts). The most frequent cardiac diseases were hypertrophic cardiomyopathy (HCM) in n = 25 (21,6%), electrical heart disease in n = 20 (17,2%), and dilated cardiomyopathy in n = 17 (14,7%). Mean follow-up was 740 ± 549 days. During follow- up n = 17 (14.7%) pts. experienced n = 27 inappropriate episodes due to T-wave oversensing. Besides HCM (OR 6.16, CI 1.79-21.15, p = 0.004) a discordance of QRS to T-wave in lead I (OR 6.5, CI 1.86-22.67, p = 0.003) was found to be a strong predictor for inappropriate shocks. In multivariate analysis the pts. with a combination of both had an 8.4-fold higher risk of misclassification of intracardiac signals (p = 0.003) with consecutive inappropriate therapy. CONCLUSION A discordance of QRS to T-wave in lead I turned out to be a strong predictor for future inappropriate shocks in a typical S-ICD® cohort with special impact on HCM pts.
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Willy K, Reinke F, Rath B, Ellermann C, Wolfes J, Bögeholz N, Köbe J, Eckardt L, Frommeyer G. Pitfalls of the S-ICD therapy: experiences from a large tertiary centre. Clin Res Cardiol 2020; 110:861-867. [PMID: 33130912 PMCID: PMC8166696 DOI: 10.1007/s00392-020-01767-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 10/15/2020] [Indexed: 11/25/2022]
Abstract
Aim The subcutaneous ICD (S-ICD) has evolved to a potential first option for many patients who have to be protected from sudden cardiac death. Many trials have underlined a similar performance regarding its effectiveness in relation to transvenous ICDs and have shown the expected benefits concerning infective endocarditis and lead failure. However, there have also been problems due to the peculiarities of the device, such as oversensing and myopotentials. In this study, we present patients from a large tertiary centre suffering from complications with an S-ICD and propose possible solutions. Methods and results All S-ICD patients who experienced complications related to the device (n = 40) of our large-scale single-centre S-ICD registry (n = 351 patients) were included in this study. Baseline characteristics, complications occurring and solutions to these problems were documented over a mean follow-up of 50 months. In most cases (n = 23), patients suffered from oversensing (18 cases with T wave or P wave oversensing, 5 due to myopotentials). Re-programming successfully prevented further oversensing episode in 13/23 patients. In 9 patients, generator or lead-related complications, mostly due to infectious reasons (5/9), occurred. Further problems consisted of ineffective shocks in one patient and need for antibradycardia stimulation in 2 patients and indication for CRT in 2 other patients. In total, the S-ICD had to be extracted in 10 patients. 7 of them received a tv-ICD subsequently, 3 patients refused re-implantation of any ICD. One other patient kept the ICD but had antitachycardic therapy deactivated due to inappropriate shocks for myopotential oversensing. Conclusion The S-ICD is a valuable option for many patients for the prevention of sudden cardiac death. Nonetheless, certain problems are immanent to the S-ICD (limited re-programming options, size of the generator) and should be addressed in future generations of the S-ICD. Graphic abstract ![]()
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Affiliation(s)
- Kevin Willy
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany.
| | - Florian Reinke
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Benjamin Rath
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Christian Ellermann
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Julian Wolfes
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Nils Bögeholz
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Julia Köbe
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Lars Eckardt
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
| | - Gerrit Frommeyer
- Clinic for Cardiology II: Electrophysiology, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149, Munster, Germany
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Over- and undersensing-pitfalls of arrhythmia detection with implantable devices and wearables. Herzschrittmacherther Elektrophysiol 2020; 31:273-287. [PMID: 32767089 PMCID: PMC7412442 DOI: 10.1007/s00399-020-00710-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 07/08/2020] [Indexed: 01/30/2023]
Abstract
Cardiac implantable electronic devices (CIEDs) are a cornerstone of arrhythmia and heart failure detection as well as management. In recent years new kinds of devices have emerged which can be used subcutaneously or worn on the skin. In particular for large-scale arrhythmia monitoring, small, unobtrusive gadgets seem positioned to upend paradigms and care delivery. However, the performance of CIEDs and wearables is only as good as their sensing and detection capacities. Whether for pacing, defibrillation or diagnostic monitoring, the device must be able to process and filter the sensed signal to reduce noise and to exclude irrelevant physiological signals. The demands on sensing and detection quality will differ depending on how the information is applied. With a pacemaker or implantable cardioverter/defibrillator, withheld or erroneous therapy can have severe consequences and accurate and reliable detection of cardiac function is crucial. Monitoring devices are usually used in risk assessment and management, with greater tolerance for isolated artefacts or lower quality of readings. This review discusses sensing and detection and the performance to date by CIEDs as well as subcutaneous and wearable devices.
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