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Luna-Alcala S, Garcia-Cardenas M, Guerra EC, Martinez-Dominguez P, Cabello-Ganem A, Proaño-Bernal L, Chava-Ponte CA, Hernandez-Pacherres A, Espinola-Zavaleta N. Ventricular predominance in biventricular arrhythmogenic cardiomyopathy: Should new subtype criteria be recognized? Radiol Case Rep 2024; 19:2457-2463. [PMID: 38585407 PMCID: PMC10998062 DOI: 10.1016/j.radcr.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 04/09/2024] Open
Abstract
Arrhythmogenic cardiomyopathy is a biventricular disease in which the effect on the left ventricle can be either equivalent to or more severe than that on the right ventricle. It is a rare disease due to its low reported prevalence and typically becomes clinically evident during the second to fourth decade of life. It represents 4% of sudden cardiac death cases referred for autopsy and 10% of cases of unexplained cardiac arrest. We present a challenging case report of a 68-year-old man who arrived at the emergency room with chest discomfort, palpitations, and light-headedness before a syncopal episode with urinary incontinence. During monitoring, ventricular tachycardia was detected and was treated with cardioversion. However, a follow-up electrocardiogram revealed low QRS voltages in limb leads and T-wave inversion in the left precordial leads. The patient underwent a transthoracic echocardiogram and a gadolinium-based magnetic resonance imaging study to evaluate the possibility of acute decompensated heart failure. Both imaging studies revealed low ejection fraction and systolic dysfunction in both right and left ventricles. Furthermore, in the late gadolinium enhancement study, extensive left ventricular subepicardial enhancement with septal predominance in a ring pattern and an irregular morphology of the right ventricular free wall were observed. A diagnosis of biventricular arrhythmogenic cardiomyopathy was established based on the 2020 Padua Criteria. Although there is not a recognized classification within these criteria to establish its subtype, in our case there was a left ventricular predominance due to the presence of additional left ventricular categories.
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Affiliation(s)
- Santiago Luna-Alcala
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | | | - Enrique C. Guerra
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
- MD–PhD (PECEM) Program, School of Medicine, National Autonomous University of Mexico, Mexico City, Mexico
| | - Pavel Martinez-Dominguez
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Aldo Cabello-Ganem
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | - Leonardo Proaño-Bernal
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
| | | | | | - Nilda Espinola-Zavaleta
- Department of Nuclear Cardiology, National Institute of Cardiology Ignacio Chavez, Mexico City, Mexico
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2
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Kohansal E, Askarinejad A, MozafaryBazargany M, Sabahizadeh A, Pakmehr S, Haghjoo M. Assessing the impact of omega-3 fatty acids on ventricular tachyarrhythmia and survival in patients with ICDs: A systematic review and meta-analysis. Int J Cardiol Heart Vasc 2024; 52:101397. [PMID: 38584673 PMCID: PMC10990970 DOI: 10.1016/j.ijcha.2024.101397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/16/2024] [Accepted: 03/26/2024] [Indexed: 04/09/2024]
Abstract
Background Recent studies investigating the effects of fish oil on shocks administered by ICDs in patients with ventricular tachycardias produced inconclusive results. This systematic review aims to evaluate the effectiveness of omega-3 polyunsaturated fatty acids in lowering the risk of life-threatening VTs among individuals with implantable cardioverter-defibrillators. Methods We searched five databases, including Central, PubMed, EMBASE, Web of Science, and Scopus, for studies evaluating the efficacy of omega-3 polyunsaturated fatty acids (PUFAs) for the prevention of ICD events for VT or VF, published up to December 1, 2023. Results Four trials were finally included in the study. The pooled risk ratios for mortality and ICD events were 0.87 (95% CI:0.58-1.32) and 0.75 (95% CI:0.48-1.18), respectively. Conclusion No significant effect was discovered to support the antiarrhythmic properties or survival advantages of n-3 polyunsaturated fatty acids (PUFA) in individuals with implanted implantable cardioverter-defibrillators (ICD).
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Affiliation(s)
- Erfan Kohansal
- Rajaie Cardiovascular Medical and Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Askarinejad
- Rajaie Cardiovascular Medical and Research Institute, Iran University of Medical Sciences, Tehran, Iran
| | | | | | | | - Majid Haghjoo
- Department of Cardiac Electrophysiology, Rajaie Cardiovascular Medical and Research Institute, Iran University of Medical Sciences, Tehran, Iran
- Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Medical and Research Institute, Iran University of Medical Sciences, Tehran, Iran
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Botrugno C, Crico C, Iori M, Blanck O, Blamek S, Postema PG, Quesada A, Pruvot E, Verhoeff JJC, De Panfilis L. Patient vulnerability in stereotactic arrhythmia radioablation (STAR): a preliminary ethical appraisal from the STOPSTORM.eu consortium. Strahlenther Onkol 2024:10.1007/s00066-024-02230-w. [PMID: 38652131 DOI: 10.1007/s00066-024-02230-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/17/2024] [Indexed: 04/25/2024]
Abstract
This preliminary ethical appraisal from the STOPSTORM.eu consortium is meant to raise critical points that clinicians administering stereotactic arrhythmia radioablation should consider to meet the highest standards in medical ethics and thus promote quality of life of patients recruited for radiotherapy treatments at a stage in which they experience a significant degree of vulnerability.
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Affiliation(s)
- Carlo Botrugno
- Research Unit on Everyday Bioethics and Ethics of Science, Department of Legal Sciences, University of Florence, Florence, Italy
- Legal Medicine and Bioethics, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Chiara Crico
- Legal Medicine and Bioethics, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
- Fondazione IRCCS Istituto Tumori, Milano, Italy
| | - Mauro Iori
- Medical Physics Unit, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Oliver Blanck
- Department of Radiation Oncology, University Medical Center Schleswig-Holstein, Kiel, Germany.
| | - Slawomir Blamek
- Department of Radiotherapy, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice, Poland
| | - Pieter G Postema
- Department of Clinical and Experimental Cardiology, Heart Failure & Arrhythmias, Amsterdam Heart Center and Cardiovascular Science, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Aurelio Quesada
- Cardiology Department, Arrhythmias Unit, Consorcio Hospital General Universitario de Valencia, Faculty of Medicine, Catholic University of Valencia "San Vicente Martir", Valencia, Spain
| | - Etienne Pruvot
- Heart and Vessel Department, Service of Cardiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Joost J C Verhoeff
- Department of Radiotherapy, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Radiotherapy, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Ludovica De Panfilis
- Legal Medicine and Bioethics, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
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Chin CG, Chen YC, Lin FJ, Lin YK, Lu YY, Cheng TY, Chen SA, Chen YJ. Targeting NLRP3 signaling reduces myocarditis-induced arrhythmogenesis and cardiac remodeling. J Biomed Sci 2024; 31:42. [PMID: 38650023 PMCID: PMC11034044 DOI: 10.1186/s12929-024-01032-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 04/14/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND Myocarditis substantially increases the risk of ventricular arrhythmia. Approximately 30% of all ventricular arrhythmia cases in patients with myocarditis originate from the right ventricular outflow tract (RVOT). However, the role of NLRP3 signaling in RVOT arrhythmogenesis remains unclear. METHODS Rats with myosin peptide-induced myocarditis (experimental group) were treated with an NLRP3 inhibitor (MCC950; 10 mg/kg, daily for 14 days) or left untreated. Then, they were subjected to electrocardiography and echocardiography. Ventricular tissue samples were collected from each rat's RVOT, right ventricular apex (RVA), and left ventricle (LV) and examined through conventional microelectrode and histopathologic analyses. In addition, whole-cell patch-clamp recording, confocal fluorescence microscopy, and Western blotting were performed to evaluate ionic currents, intracellular Ca2+ transients, and Ca2+-modulated protein expression in individual myocytes isolated from the RVOTs. RESULTS The LV ejection fraction was lower and premature ventricular contraction frequency was higher in the experimental group than in the control group (rats not exposed to myosin peptide). Myocarditis increased the infiltration of inflammatory cells into cardiac tissue and upregulated the expression of NLRP3; these observations were more prominent in the RVOT and RVA than in the LV. Furthermore, experimental rats treated with MCC950 (treatment group) improved their LV ejection fraction and reduced the frequency of premature ventricular contraction. Histopathological analysis revealed higher incidence of abnormal automaticity and pacing-induced ventricular tachycardia in the RVOTs of the experimental group than in those of the control and treatment groups. However, the incidences of these conditions in the RVA and LV were similar across the groups. The RVOT myocytes of the experimental group exhibited lower Ca2+ levels in the sarcoplasmic reticulum, smaller intracellular Ca2+ transients, lower L-type Ca2+ currents, larger late Na+ currents, larger Na+-Ca2+ exchanger currents, higher reactive oxygen species levels, and higher Ca2+/calmodulin-dependent protein kinase II levels than did those of the control and treatment groups. CONCLUSION Myocarditis may increase the rate of RVOT arrhythmogenesis, possibly through electrical and structural remodeling. These changes may be mitigated by inhibiting NLRP3 signaling.
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Affiliation(s)
- Chye-Gen Chin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yao-Chang Chen
- Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Fong-Jhih Lin
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan
- Department of Biomedical Engineering, National Defense Medical Center, Taipei, Taiwan
| | - Yung-Kuo Lin
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yen-Yu Lu
- Division of Cardiology, Department of Internal Medicine, Sijhih Cathay General Hospital, New Taipei City, Taiwan
| | - Tzu-Yu Cheng
- Division of Cardiology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Cardiovascular Surgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Shih-Ann Chen
- Heart Rhythm Center and Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Cardiology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yi-Jen Chen
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei, 11031, Taiwan.
- Division of Cardiovascular Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
- Cardiovascular Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
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Keene D, Miyazawa AA, Arnold AD, Naraen A, Kaza N, Mohal JS, Lefroy DC, Lim PB, Ng FS, Koa-Wing M, Qureshi NA, Linton NWF, Wright I, Peters NS, Kanagaratnam P, Shun-Shin MJ, Francis DP, Whinnett ZI. Therapeutic potential of conduction system pacing as a method for improving cardiac output during ventricular tachycardia. J Interv Card Electrophysiol 2024:10.1007/s10840-024-01809-8. [PMID: 38649588 DOI: 10.1007/s10840-024-01809-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 04/15/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Ventricular tachycardia (VT) reduces cardiac output through high heart rates, loss of atrioventricular synchrony, and loss of ventricular synchrony. We studied the contribution of each mechanism and explored the potential therapeutic utility of His bundle pacing to improve cardiac output during VT. METHODS Study 1 aimed to improve the understanding of mechanisms of harm during VT (using pacing simulated VT). In 23 patients with left ventricular impairment, we recorded continuous ECG and beat-by-beat blood pressure measurements. We assessed the hemodynamic impact of heart rate and restoration of atrial and biventricular synchrony. Study 2 investigated novel pacing interventions during clinical VT by evaluating the hemodynamic effects of His bundle pacing at 5 bpm above the VT rate in 10 patients. RESULTS In Study 1, at progressively higher rates of simulated VT, systolic blood pressure declined: at rates of 125, 160, and 190 bpm, -22.2%, -42.0%, and -58.7%, respectively (ANOVA p < 0.0001). Restoring atrial synchrony alone had only a modest beneficial effect on systolic blood pressure (+ 3.6% at 160 bpm, p = 0.2117), restoring biventricular synchrony alone had a greater effect (+ 9.1% at 160 bpm, p = 0.242), and simultaneously restoring both significantly increased systolic blood pressure (+ 31.6% at 160 bpm, p = 0.0003). In Study 2, the mean rate of clinical VT was 143 ± 21 bpm. His bundle pacing increased systolic blood pressure by + 14.2% (p = 0.0023). In 6 of 10 patients, VT terminated with His bundle pacing. CONCLUSIONS Restoring atrial and biventricular synchrony improved hemodynamic function in simulated and clinical VT. Conduction system pacing could improve VT tolerability and treatment.
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Affiliation(s)
- Daniel Keene
- Imperial College Healthcare NHS Trust, London, UK.
- Imperial College London, National Heart and Lung Institute, London, UK.
- National Heart and Lung Institute, Hammersmith Hospital, London, W12 0HS, UK.
| | - Alejandra A Miyazawa
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Ahran D Arnold
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Akriti Naraen
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Nandita Kaza
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Jagdeep S Mohal
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | | | - Phang Boon Lim
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Fu Siong Ng
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Michael Koa-Wing
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Norman A Qureshi
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Nick W F Linton
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Ian Wright
- Imperial College Healthcare NHS Trust, London, UK
| | - Nicholas S Peters
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Prapa Kanagaratnam
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Matthew J Shun-Shin
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Darrel P Francis
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
| | - Zachary I Whinnett
- Imperial College Healthcare NHS Trust, London, UK
- Imperial College London, National Heart and Lung Institute, London, UK
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Sapp JL, Tang ASL, Parkash R, Stevenson WG, Healey JS, Wells G. A Randomized Clinical Trial of Catheter Ablation and Antiarrhythmic Drug Therapy for Suppression of Ventricular Tachycardia in Ischemic Cardiomyopathy: The VANISH2 Trial. Am Heart J 2024:S0002-8703(24)00096-6. [PMID: 38649085 DOI: 10.1016/j.ahj.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Recurrent ventricular tachycardia (VT) in patients with prior myocardial infarction is associated with adverse quality of life and clinical outcomes, despite the presence of implanted defibrillators (ICDs). Suppression of recurrent VT can be accomplished with antiarrhythmic drug therapy or catheter ablation. The Ventricular Tachycardia Antiarrhythmics or Ablation In Structural Heart Disease 2 (VANISH2) trial is designed to determine whether ablation is superior to antiarrhythmic drug therapy as first line therapy for patients with ischemic cardiomyopathy and VT. The VANISH2 trial enrolls patients with prior myocardial infarction and VT (with one of: ≥1 ICD shock; ≥3 episodes treated with antitachycardia pacing (ATP) and symptoms; ≥5 episodes treated with ATP regardless of symptoms; ≥3 episodes within 24 hours; or sustained VT treated with electrical cardioversion or pharmacologic conversion). Enrolled patients are classified as either sotalol-eligible, or amiodarone-eligible, and then are randomized to either catheter ablation or to that antiarrhythmic drug therapy, with randomization stratified by drug-eligibility group. Drug therapy, catheter ablation procedures and ICD programming are standardized. All patients will be followed until two years after randomization. The primary endpoint is a composite of mortality at any time, appropriate ICD shock after 14 days, VT storm after 14 days, and treated sustained VT below detection of the ICD after 14 days. The outcomes will be analyzed according to the intention-to-treat principle using survival analysis techniques. The results of the VANISH2 trial are intended to provide data to support clinical decisions on how to suppress VT for patients with prior myocardial infarction. Clinicaltrials.gov registration NCT02830360.
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Affiliation(s)
- John L Sapp
- QEII Health Sciences Centre, Dalhousie University, Halifax, Canada.
| | | | - Ratika Parkash
- QEII Health Sciences Centre, Dalhousie University, Halifax, Canada
| | | | - Jeff S Healey
- Population Health Research Institute, McMaster University, Hamilton, Canada
| | - George Wells
- University of Ottawa Heart Institute, Ottawa Canada
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Gomes DA, Paiva MS, Matos D, Bello AR, Rodrigues G, Carmo J, Ferreira J, Costa FM, Santos PG, Carmo P, Cavaco D, Morgado FB, Adragão P. Outcomes of ventricular tachycardia ablation in patients with ischemic and non-ischemic cardiomyopathy: A propensity score matched analysis. Rev Port Cardiol 2024:S0870-2551(24)00082-9. [PMID: 38615878 DOI: 10.1016/j.repc.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/21/2024] [Accepted: 04/09/2024] [Indexed: 04/16/2024] Open
Abstract
INTRODUCTION AND OBJECTIVES Catheter ablation (CA) is effective in the treatment of ventricular tachycardia (VT). Although some observational data suggest patients with non-ischemic cardiomyopathy (NICM) have less favorable outcomes when compared to those with an ischemic etiology (ICM), direct comparisons are rarely reported. We aimed to compare the outcomes of VT ablation in a propensity score matched population of ICM or NICM patients. METHODS Single-center retrospective study of consecutive patients undergoing VT ablation from 2012 to 2023. A propensity score (PS) was used to match ICM and NICM patients in a 1:1 fashion according to age, sex, left ventricular ejection fraction (LVEF), NYHA class, electrical storm (ES) at presentation, and previous endocardial ablation. The outcomes of interest were VT-free survival and all-cause mortality. RESULTS The PS yielded two groups of 71 patients each (mean age 63±10 years, 92% male, mean LVEF 35±10%, 36% with ES at presentation, and 23% with previous ablation), well matched for baseline characteristics. During a median follow-up of 2.3 (interquartile range IQR 1.3-3.8) years, patients with NICM had a significantly lower VT-free survival (53.5% vs. 69.0%, log-rank P=0.037), although there were no differences regarding all-cause mortality (22.5% vs. 16.9%, log-rank P=0.245). Multivariate analysis identified NICM (HR 2.34 [95% CI 1.32-4.14], P=0.004), NYHA class III/ IV (HR 2.11 [95% CI 1.11-4.04], P=0.024), and chronic kidney disease (HR 2.23 [95% CI 1.25-3.96], P=0.006), as independent predictors of VT recurrence. CONCLUSION Non-ischemic cardiomyopathy patients were at increased risk of VT recurrence after ablation, although long-term mortality did not differ.
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Affiliation(s)
- Daniel A Gomes
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal.
| | - Mariana Sousa Paiva
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal
| | - Daniel Matos
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Ana Rita Bello
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal
| | - Gustavo Rodrigues
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital dos Lusíadas, Lisbon, Portugal
| | - João Carmo
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Jorge Ferreira
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal
| | - Francisco Moscoso Costa
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Pedro Galvão Santos
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Pedro Carmo
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Diogo Cavaco
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
| | - Francisco Bello Morgado
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital dos Lusíadas, Lisbon, Portugal
| | - Pedro Adragão
- Department of Cardiology, Hospital de Santa Cruz, Carnaxide, Lisbon, Portugal; Department of Cardiology, Hospital da Luz, Lisbon, Portugal
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8
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Lamba A, Roston TM, Peltenburg PJ, Kallas D, Franciosi S, Lieve KVV, Kannankeril PJ, Horie M, Ohno S, Brugada R, Aiba T, Fischbach P, Knight L, Till J, Kwok SY, Probst V, Backhoff D, LaPage MJ, Batra AS, Drago F, Haugaa K, Krahn AD, Robyns T, Swan H, Tavacova T, Atallah J, Borggrefe M, Rudic B, Sarquella-Brugada G, Chorin E, Hill A, Kammeraad J, Kamp A, Law I, Perry J, Roberts JD, Tisma-Dupanovic S, Semsarian C, Skinner JR, Tfelt-Hansen J, Denjoy I, Leenhardt A, Schwartz PJ, Ackerman MJ, Wilde AAM, van der Werf C, Sanatani S. An International Multicenter Cohort Study on Implantable Cardioverter Defibrillators for the Treatment of Symptomatic Children with Catecholaminergic Polymorphic Ventricular Tachycardia. Heart Rhythm 2024:S1547-5271(24)02323-3. [PMID: 38588993 DOI: 10.1016/j.hrthm.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 03/22/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Catecholaminergic polymorphic ventricular tachycardia (CPVT) may cause sudden cardiac death (SCD) despite medical therapy. Therefore, implantable cardioverter defibrillators (ICDs) are commonly advised. However, there are limited data on the outcomes of ICD use in children. OBJECTIVE To compare the risk of arrhythmic events in pediatric CPVT patients with and without ICDs. METHODS We compared the risk of SCD in RYR2 variant and phenotype positive symptomatic CPVT patients with and without ICDs, who were <19 years of age and had no history of sudden cardiac arrest (SCA) at phenotype diagnosis. The primary outcome was SCD; secondary outcomes were composite incidences of SCD, SCA, appropriate ICD shocks, with/without arrhythmic syncope. RESULTS The study included 235 patients, 73 (31.1%) with ICDs and 162 (68.9%) without ICDs. Over a median follow-up of 8.0 years (IQR 4.3-13.4), SCD occurred in 7 (3.0%) patients, of which 4 (57.1%) were non-compliant with medications and none had an ICD. ICD patients had a higher risk of both secondary composite outcomes (without syncope: HR 5.85 (CI 3.40-10.09); p<0.0001; with syncope: HR 2.55 (CI 1.50-4.34); p=0.0005). Thirty-one (42.5%) patients with an ICD experienced appropriate shocks, 18 (24.7%) inappropriate shocks, and 21 (28.8%) device-related complications. CONCLUSIONS SCD events occurred only in the no ICD group, in those not on optimal medical therapy. ICD patients had a high risk of appropriate and inappropriate shocks, which may be reduced with appropriate device programming. Severe ICD complications were common and risks versus benefits of ICDs need to be considered.
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Affiliation(s)
- Avani Lamba
- BC Children's Hospital, Division of Cardiology, Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Thomas M Roston
- BC Children's Hospital, Division of Cardiology, Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada; Center for Cardiovascular Innovation, Division of Cardiology, The University of British Columbia, Vancouver, Canada
| | - Puck J Peltenburg
- Amsterdam UMC, University of Amsterdam, Heart Centre; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam, the Netherlands
| | - Dania Kallas
- BC Children's Hospital, Division of Cardiology, Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Sonia Franciosi
- BC Children's Hospital, Division of Cardiology, Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Krystien V V Lieve
- Amsterdam UMC, University of Amsterdam, Heart Centre; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam, the Netherlands
| | - Prince J Kannankeril
- Department of Pediatrics, Monroe Carell Jr Children's Hospital at Vanderbilt, Vanderbilt University Medical Centre, Nashville, TN
| | - Minoru Horie
- Department of Cardiovascular Medicine, Shiga University of Medical Science, Otsu, Japan
| | - Seiko Ohno
- Department of Cardiovascular Medicine, Shiga University of Medical Science, Otsu, Japan; Department of Bioscience and Genetics, National Cerebral and Cardiovascular Centre, National Cerebral and Cardiovascular Centre, Suita, Japan
| | - Ramon Brugada
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain; Cardiovascular Genetics Center, Institut d'Investigació Biomèdica Girona (IDIBGI), University of Girona, Girona, Spain; Medical Science Department, School of Medicine, University of Girona, Girona, Spain; Cardiology Service, Hospital Josep Trueta, Girona, Spain
| | - Takeshi Aiba
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Centre, Suita, Japan
| | - Peter Fischbach
- Sibley Heart Center, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Linda Knight
- Sibley Heart Center, Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Jan Till
- Department of Cardiology, Royal Brompton Hospital, London, UK
| | - Sit-Yee Kwok
- Hong Kong Children's Hospital, Hong Kong, SAR China
| | - Vincent Probst
- Université de Nantes, CHU Nantes, CNRS, INSERM, l'institut du thorax, Nantes, France
| | | | | | - Anjan S Batra
- Division of Cardiology, Department of Pediatrics, Irvine and Children's Hospital of Orange County, University of California, Orange, California, USA
| | - Fabrizio Drago
- Pediatric Cardiology and Cardiac Arrhythmias Unit, Department of Pediatric Cardiology and Cardiac Surgery, Bambino Gesù Children's Hospital, IRCCS, Palidoro-Rome, Italy
| | - Kristina Haugaa
- ProCardio Center for Innovation, Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway; and Department of Cardiology, Karolinska University Hospital, and Department of Medicine, Huddinge, Karolinska Institute, Stockholm, Sweden
| | - Andrew D Krahn
- Center for Cardiovascular Innovation, Division of Cardiology, The University of British Columbia, Vancouver, Canada
| | - Tomas Robyns
- Department of Cardiovascular Diseases, University Hospitals Leuven, Belgium; Department of Cardiovascular Sciences, University of Leuven, Belgium
| | - Heikki Swan
- Heart and Lung Centre, Helsinki University Hospital and Helsinki University, Helsinki, Finland
| | - Terezia Tavacova
- Department of Pediatric Cardiology, Children's Heart Centre, Second Faculty of Medicine, Charles University in Prague; Motol University Hospital, Prague, Czech Republic
| | - Joseph Atallah
- Cardiology, Faculty of Medicine & Dentistry - Pediatrics Dept., Stollery Children's Hospital, Edmonton, Canada
| | - Martin Borggrefe
- Department of Medicine, University Medical Center Mannheim, Mannheim, Germany; German Center for Cardiovascular Research (DZHK), Partner Site Heidelberg, Mannheim
| | - Boris Rudic
- Pediatric Arrhythmias, Inherited Cardiac Diseases and Sudden Death Unit, Hospital Sant Joan de Déu, Spain; Medical Science Department, School of Medicine, Universitat de Girona, Spain
| | - Georgia Sarquella-Brugada
- Pediatric Arrhythmias, Inherited Cardiac Diseases and Sudden Death Unit, Hospital Sant Joan de Déu, Spain; Medical Science Department, School of Medicine, Universitat de Girona, Spain
| | - Ehud Chorin
- Department of Cardiology, Tel Aviv Sourasky Medical Center and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Allison Hill
- Children's Hospital Los Angeles, Los Angeles, California
| | - Janneke Kammeraad
- Université de Nantes, CHU Nantes, CNRS, INSERM, l'institut du thorax, Nantes, France; Department of Pediatric Cardiology, Erasmus MC - Sophia, Rotterdam, The Netherlands
| | - Anna Kamp
- Nationwide Children's Hospital, Columbus, Ohio
| | - Ian Law
- University of Iowa Stead Family Children's Hospital, Iowa City, Iowa
| | - James Perry
- Rady Children's Hospital, San Diego, California
| | - Jason D Roberts
- Section of Cardiac Electrophysiology, Division of Cardiology, Department of Medicine, Western University, London, Ontario, Canada; Population Health Research Institute, Hamilton Health Sciences, and McMaster University, Hamilton, Ontario, Canada
| | | | - Christopher Semsarian
- Agnes Ginges Centre for Molecular Cardiology at Centenary Institute, The University of Sydney, Sydney, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Jonathan R Skinner
- Cardiac Inherited Disease Group New Zealand, Green Lane Paediatric and Congenital Cardiac Services, Starship Children's Hospital, Auckland, New Zealand; Department of Paediatrics Child and Youth Health, The University of Auckland, Auckland, New Zealand
| | - Jacob Tfelt-Hansen
- Department of Cardiology, Rigshospitalet, Department of Forensic Medicine, Faculty of Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Isabelle Denjoy
- Service de Cardiologie et CNMR Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, APHP, Université de Paris Cité, Paris, France
| | - Antoine Leenhardt
- Service de Cardiologie et CNMR Maladies Cardiaques Héréditaires Rares, Hôpital Bichat, APHP, Université de Paris Cité, Paris, France
| | - Peter J Schwartz
- Istituto Auxologico Italiano, IRCCS, Center for Cardiac Arrhythmias of Genetic Origin, Milan, Italy
| | - Michael J Ackerman
- Departments of Cardiovascular Medicine, Pediatric and Adolescent Medicine, and Molecular Pharmacology & Experimental Therapeutics; Division of Heart Rhythm Services and Pediatric Cardiology, Windland Smith Rice Sudden Death Genomics Laboratory, Mayo Clinic, Rochester, MN
| | - Arthur A M Wilde
- Amsterdam UMC, University of Amsterdam, Heart Centre; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam, the Netherlands
| | - Christian van der Werf
- Amsterdam UMC, University of Amsterdam, Heart Centre; Department of Clinical and Experimental Cardiology, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, Amsterdam, the Netherlands
| | - Shubhayan Sanatani
- BC Children's Hospital, Division of Cardiology, Department of Pediatrics, The University of British Columbia, Vancouver, British Columbia, Canada.
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9
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Ukita K, Egami Y, Nohara H, Kawanami S, Kawamura A, Yasumoto K, Tsuda M, Okamoto N, Matsunaga-Lee Y, Yano M, Nishino M. Predictors of 30-day survival after emergent percutaneous coronary intervention following ventricular tachyarrhythmias complicating acute myocardial infarction. Int J Cardiol 2024; 400:131806. [PMID: 38262484 DOI: 10.1016/j.ijcard.2024.131806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/26/2023] [Accepted: 01/18/2024] [Indexed: 01/25/2024]
Abstract
BACKGROUND Little has been reported on the predictors of 30-day survival after emergent percutaneous coronary intervention (PCI) following life-threatening ventricular tachyarrhythmias associated with acute myocardial infarction (AMI). METHODS We analyzed 55 consecutive patients who underwent an emergent PCI after ventricular fibrillation (VF) or pulseless ventricular tachycardia (VT) complicating AMI between September 2014 and March 2023 in our hospital. These patients were categorized into two groups: survival group (S group) who survived >30 days after the emergent PCI and death group (D group) who died by 30 days after the emergent PCI. We compared the patient characteristics, coronary angiographic findings, and PCI procedures between the two groups. RESULTS S group consisted of 40 patients. In the univariate analysis, absence of diabetes mellitus, presence of immediate cardiopulmonary resuscitation (CPR), low arterial lactate, and single-vessel coronary artery disease (CAD) were associated with 30-day survival after the emergent PCI (P = 0.048, P < 0.001, P = 0.009, and P = 0.003, respectively). In the multivariate analysis, presence of immediate CPR and single-vessel CAD were independently associated with 30-day survival after the emergent PCI (P = 0.023 and P = 0.032, respectively). CONCLUSIONS Immediate CPR and single-vessel CAD were significant predictors of 30-day survival after the emergent PCI following VF or pulseless VT complicating AMI. Absence of diabetes mellitus and low arterial lactate were associated with 30-day survival in the univariate analysis.
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Affiliation(s)
- Kohei Ukita
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | - Yasuyuki Egami
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | - Hiroaki Nohara
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | | | - Akito Kawamura
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | - Koji Yasumoto
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | - Masaki Tsuda
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | | | | | - Masamichi Yano
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan
| | - Masami Nishino
- Division of Cardiology, Osaka Rosai Hospital, Osaka, Japan.
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10
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Nejad MPS, Kargin V, Hajeb-M S, Hicks D, Valentine M, Chon KH. Enhancing the accuracy of shock advisory algorithms in automated external defibrillators during ongoing cardiopulmonary resuscitation using a cascade of CNNEDs. Comput Biol Med 2024; 172:108180. [PMID: 38452474 DOI: 10.1016/j.compbiomed.2024.108180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/10/2024] [Accepted: 02/18/2024] [Indexed: 03/09/2024]
Abstract
Delivery of continuous cardiopulmonary resuscitation (CPR) plays an important role in the out-of-hospital cardiac arrest (OHCA) survival rate. However, to prevent CPR artifacts being superimposed on ECG morphology data, currently available automated external defibrillators (AEDs) require pauses in CPR for accurate analysis heart rhythms. In this study, we propose a novel Convolutional Neural Network-based Encoder-Decoder (CNNED) structure with a shock advisory algorithm to improve the accuracy and reliability of shock versus non-shock decision-making without CPR pause in OHCA scenarios. Our approach employs a cascade of CNNEDs in conjunction with an AED shock advisory algorithm to process the ECG data for shock decisions. Initially, a CNNED trained on an equal number of shockable and non-shockable rhythms is used to filter the CPR-contaminated data. The resulting filtered signal is then fed into a second CNNED, which is trained on imbalanced data more tilted toward the specific rhythm being analyzed. A reliable shock versus non-shock decision is made when both classifiers from the cascade structure agree, while segments with conflicting classifications are labeled as indeterminate, indicating the need for additional segments to analyze. To evaluate our approach, we generated CPR-contaminated ECG data by combining clean ECG data with 52 CPR samples. We used clean ECG data from the CUDB, AFDB, SDDB, and VFDB databases, to which 52 CPR artifact cases were added, while a separate test set provided by the AED manufacturer Defibtech LLC was used for performance evaluation. The test set comprised 20,384 non-shockable CPR-contaminated segments from 392 subjects, as well as 3744 shockable CPR-contaminated samples from 41 subjects with coarse ventricular fibrillation (VF) and 31 subjects with rapid ventricular tachycardia (rapid VT). We observed improvements in rhythm analysis using our proposed cascading CNNED structure when compared to using a single CNNED structure. Specifically, the specificity of the proposed cascade of CNNED structure increased from 99.14% to 99.35% for normal sinus rhythm and from 96.45% to 97.22% for other non-shockable rhythms. Moreover, the sensitivity for shockable rhythm detection increased from 90.90% to 95.41% for ventricular fibrillation and from 82.26% to 87.66% for rapid ventricular tachycardia. These results meet the performance thresholds set by the American Heart Association and demonstrate the reliable and accurate analysis of heart rhythms during CPR using only ECG data without the need for CPR interruptions or a reference signal.
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Affiliation(s)
| | | | - Shirin Hajeb-M
- Biomedical engineering department, University of Connecticut, Storrs, CT, 06269, USA; Philips Healthcare, Bothell, WA, 98021, USA.
| | | | | | - K H Chon
- Biomedical engineering department, University of Connecticut, Storrs, CT, 06269, USA.
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11
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Nagatomo Y, Takase S, Sakamoto K, Nagata H, Yamamura K, Tsutsui H, Ohga S. Successful mapping and ablation of a pediatric-onset non-reentrant fascicular tachycardia. J Cardiol Cases 2024; 29:165-169. [PMID: 38646079 PMCID: PMC11031658 DOI: 10.1016/j.jccase.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 04/23/2024] Open
Abstract
Non-reentrant fascicular tachycardia (NRFT) developed in a 6-year-old Japanese boy. Because of drug-resistant recurrences, he received catheter mapping and ablation at age 10 years. An electrocardiogram exhibited a superior left-axis deviation, a right bundle branch block-type configuration, and relatively narrow QRS with sharp R wave. It suggested verapamil-sensitive ventricular tachycardia (VT), but showed no sensitivity to verapamil or reentrant characteristics in the electrophysiological study. Detailed VT mapping determined the earliest presystolic Purkinje potential on the left posterior fascicle at the mid-ventricular septum. Radiofrequency current applications to the lesion led to his NRFT-free life without restriction. Learning objectives Purkinje-related idiopathic ventricular tachycardias (VTs) are commonly due to reentrant mechanisms, and non-reentrant fascicular tachycardia (NRFT) is a rare form of idiopathic VT in adults. Although it is crucial to distinguish NRFT from reentrant VTs, there is no information about the electrophysiological studies and the treatment effect in pediatric-onset NRFT.
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Affiliation(s)
- Yusaku Nagatomo
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University Hospital, Fukuoka City, Japan
| | - Susumu Takase
- Department of Cardiovascular Medicine, Kyushu University Hospital, Fukuoka City, Japan
| | - Kazuo Sakamoto
- Department of Cardiovascular Medicine, Kyushu University Hospital, Fukuoka City, Japan
| | - Hazumu Nagata
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University Hospital, Fukuoka City, Japan
| | - Kenichiro Yamamura
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University Hospital, Fukuoka City, Japan
| | - Hiroyuki Tsutsui
- Department of Cardiovascular Medicine, Kyushu University Hospital, Fukuoka City, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Science, Kyushu University Hospital, Fukuoka City, Japan
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12
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Prathivadhi-Bhayankaram S, Ashwath ML. A case report of a giant coronary artery aneurysm masquerading as a ventricular mass. Eur Heart J Case Rep 2024; 8:ytae124. [PMID: 38572017 PMCID: PMC10990057 DOI: 10.1093/ehjcr/ytae124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/19/2024] [Accepted: 03/08/2024] [Indexed: 04/05/2024]
Abstract
Background A coronary artery aneurysm is a dilation exceeding 1.5 times the diameter of the patient's largest coronary vessel. They are rare, varying in prevalence between 1.4 and 4.9%. Additionally, they carry a high risk of potential complications, including thrombosis and myocardial infarction, with a risk of rupture. We present an interesting case of a patient with initial imaging suggesting a mass in the right ventricle. Case summary This patient initially presented with acute hypoxic respiratory failure related to pulmonary oedema. His course was complicated by symptomatic ventricular tachycardia and an inferoposterior myocardial infarction. Further investigation revealed a left anterior descending artery and circumflex artery thrombosed aneurysm projecting into the right ventricle. Multimodal imaging was used to arrive at his diagnosis. He continues to do well on medical therapy for coronary artery disease and heart failure. Discussion Clinicians should be vigilant for this rare pathology, which may be easily missed yet poses a high mortality risk. Our case demonstrates the benefit of multimodal imaging, as this patient's aneurysm was initially mistaken for a ventricular mass.
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Affiliation(s)
- Sruti Prathivadhi-Bhayankaram
- Department of Internal Medicine, University of Iowa Carver College of Medicine, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
| | - Mahi L Ashwath
- Department of Internal Medicine, University of Iowa Carver College of Medicine, University of Iowa Hospitals and Clinics, 200 Hawkins Drive, Iowa City, IA 52242, USA
- Heart and Vascular Center, Department of Internal Medicine, University of Iowa Carver College of Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA
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13
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Tan JL, Guandalini GS, Hyman MC, Arkles J, Santangeli P, Schaller RD, Garcia F, Supple G, Frankel DS, Nazarian S, Lin D, Callans D, Marchlinski FE, Markman TM. Substrate and arrhythmia characterization using the multi-electrode Optrell mapping catheter for ventricular arrhythmia ablation-a single-center experience. J Interv Card Electrophysiol 2024; 67:559-569. [PMID: 37592198 DOI: 10.1007/s10840-023-01618-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/07/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND The use of a multi-electrode Optrell mapping catheter during ventricular tachycardia (VT) or premature ventricular complex (PVC) ablation procedures has not been widely reported. OBJECTIVES We aim to describe the feasibility and safety of using the Optrell multipolar mapping catheter (MPMC) to guide catheter ablation of VT and PVCs. METHODS We conducted a single-center, retrospective evaluation of patients who underwent VT or PVC ablation between June and November 2022 utilizing the MPMC. RESULTS A total of 20 patients met the inclusion criteria (13 VT and 7 PVC ablations, 80% male, 61 ± 15 years). High-density mapping was performed in the VT procedures with median 2753 points [IQR 1471-17,024] collected in the endocardium and 12,830 points [IQR 2319-30,010] in the epicardium. Operators noted challenges in manipulation of the MPMC in trabeculated endocardial regions or near valve apparatus. Late potentials (LPs) were detected in 11 cases, 7 of which had evidence of isochronal crowding demonstrated during late annotation mapping. Two patients who also underwent entrainment mapping had critical circuitry confirmed in regions of isochronal crowding. In the PVC group, high-density voltage and activation mapping was performed with a median 1058 points [IQR 534-3582] collected in the endocardium. CONCLUSIONS This novel MPMC can be used safely and effectively to create high-density maps in LV endocardium or epicardium. Limitations of the catheter include a longer wait time for matrix formation prior to starting point collection and challenges in manipulation in certain regions.
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Affiliation(s)
- Jian Liang Tan
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Gustavo S Guandalini
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Matthew C Hyman
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Jeffrey Arkles
- Electrophysiology Section, Lancaster Heart Group, Lancaster General Hospital, Lancaster, PA, USA
| | - Pasquale Santangeli
- Cardiac Pacing and Electrophysiology Section, Heart and Vascular Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Robert D Schaller
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Fermin Garcia
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Gregory Supple
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - David S Frankel
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Saman Nazarian
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - David Lin
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - David Callans
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Francis E Marchlinski
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA
| | - Timothy M Markman
- Electrophysiology Section, Cardiology Division, Hospital of the University of Pennsylvania, 1 Convention Avenue, Philadelphia, PA, 19104, USA.
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14
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Loap P, Giorgi M, Vu-Bezin J, Kirov K, Sampai JM, Prezado Y, Kirova Y. Dosimetric feasibility study ("proof of concept") of refractory ventricular tachycardia radioablation using proton minibeams. Cancer Radiother 2024; 28:195-201. [PMID: 38599941 DOI: 10.1016/j.canrad.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 04/12/2024]
Abstract
PURPOSE Preclinical data demonstrated that the use of proton minibeam radiotherapy reduces the risk of toxicity in healthy tissue. Ventricular tachycardia radioablation is an area under clinical investigation in proton beam therapy. We sought to simulate a ventricular tachycardia radioablation with proton minibeams and to demonstrate that it was possible to obtain a homogeneous coverage of an arrhythmogenic cardiac zone with this technique. MATERIAL AND METHODS An arrhythmogenic target volume was defined on the simulation CT scan of a patient, localized in the lateral wall of the left ventricle. A dose of 25Gy was planned to be delivered by proton minibeam radiotherapy, simulated using a Monte Carlo code (TOPAS v.3.7) with a collimator of 19 0.4 mm-wide slits spaced 3mm apart. The main objective of the study was to obtain a plan ensuring at least 93% of the prescription dose in 93% of the planning target volume without exceeding 110% of the prescribed dose in the planning target volume. RESULTS The average dose in the planning treatment volume in proton minibeam radiotherapy was 25.12Gy. The percentage of the planning target volume receiving 93% (V93%), 110% (V110%), and 95% (V95%) of the prescribed dose was 94.25%, 0%, and 92.6% respectively. The lateral penumbra was 6.6mm. The mean value of the peak-to-valley-dose ratio in the planning target volume was 1.06. The mean heart dose was 2.54Gy versus 5.95Gy with stereotactic photon beam irradiation. CONCLUSION This proof-of-concept study shows that proton minibeam radiotherapy can achieve a homogeneous coverage of an arrhythmogenic cardiac zone, reducing the dose at the normal tissues. This technique, ensuring could theoretically reduce the risk of late pulmonary and breast fibrosis, as well as cardiac toxicity as seen in previous biological studies in proton minibeam radiotherapy.
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Affiliation(s)
- P Loap
- Department of Radiation Oncology, institut Curie, Paris, France
| | - M Giorgi
- Signalisation radiobiologie et cancer, Inserm U1021, CNRS UMR3347, Institut Curie, université PSL, 91400 Orsay, France; Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Lisboa, Portugal; Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - J Vu-Bezin
- Department of Radiation Oncology, institut Curie, Paris, France
| | - K Kirov
- Department of Anesthesia and Reanimation, institut Curie, Paris, France
| | - J M Sampai
- Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Lisboa, Portugal; Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Y Prezado
- Signalisation radiobiologie et cancer, Inserm U1021, CNRS UMR3347, Institut Curie, université PSL, 91400 Orsay, France
| | - Y Kirova
- Department of Radiation Oncology, institut Curie, Paris, France; Université Versailles, Saint-Quentin, France.
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15
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Chakrala TS, Prakash RO, Prasada S, Rigger WR, Vilaro J. A case of cardiogenic shock due to ventricular dyssynchrony resolved by atrial pacing. J Cardiol Cases 2024; 29:149-152. [PMID: 38646081 PMCID: PMC11031668 DOI: 10.1016/j.jccase.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/18/2023] [Accepted: 10/11/2023] [Indexed: 04/23/2024] Open
Abstract
We present a case of a man with ischemic cardiomyopathy and single chamber implantable cardioverter-defibrillator who developed sinus arrest creating sudden dependence on right ventricular (RV) pacing. He presented with cardiogenic shock secondary to abrupt onset ventricular dyssynchrony from RV pacing, which required emergent stabilization and completely resolved with atrial pacing. Learning objective To establish a basic understanding of cardiogenic shock management. To reinforce the adverse effects associated with right ventricular pacing.
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Affiliation(s)
- Teja S. Chakrala
- Department of Medicine, University of Florida, Gainesville, FL, USA
| | | | - Sahil Prasada
- Department of Medicine, University of Florida, Gainesville, FL, USA
- Division of Cardiovascular Medicine, University of Florida, Gainesville, FL, USA
| | - Wytch R. Rigger
- Department of Medicine, University of Florida, Gainesville, FL, USA
- Division of Cardiovascular Medicine, University of Florida, Gainesville, FL, USA
| | - Juan Vilaro
- Department of Medicine, University of Florida, Gainesville, FL, USA
- Division of Cardiovascular Medicine, University of Florida, Gainesville, FL, USA
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16
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Nair A, Bhoi S, Choudhary Y. Cease the storm- A case report of successful stellate ganglion block in terminating refractory electrical storm. Am J Emerg Med 2024:S0735-6757(24)00113-X. [PMID: 38575462 DOI: 10.1016/j.ajem.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/19/2024] [Accepted: 03/05/2024] [Indexed: 04/06/2024] Open
Abstract
An electrical storm also known as a ventricular tachycardia storm (VT storm) tends to recur and form a vicious cycle, eventually leading to a refractory electrical storm, refractory to electrical and pharmacological cardioversion. The treatment of refractory VT storm is challenging. Here we discuss the case of a middle-aged gentleman who presented to our emergency department 6 months apart with a refractory VT storm. When all the anti-arrhythmic agents and multiple cardioversion attempts failed in terminating the storm, we attempted ultrasound-guided stellate ganglion block. On both occasions, it successfully terminated the storm. Hence emergency physicians need to be aware of the right technique and timing of stellate ganglion block and ultrasound-guided needle tracking, as it can be a final rescue technique in treating refractory electrical storm in the emergency department.
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Affiliation(s)
- Archana Nair
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjeev Bhoi
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India.
| | - Yatharth Choudhary
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
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17
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Zaccaro L, Avondo S, Albani S, Scacciatella P. A rare case of upper septal fascicular ventricular tachycardia presented in a case report. Ann Cardiol Angeiol (Paris) 2024; 73:101738. [PMID: 38354636 DOI: 10.1016/j.ancard.2024.101738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/12/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024]
Abstract
CASE SUMMARY A 71-year-old presented at the outpatient clinic with palpitations and NYHA II functional class. 12-lead ECG exhibited Upper septal idiopathic left ventricular tachycardia (US-ILVT). Ventricular tachycardia (VT) was interrupted with Verapamil administration, no further recurrences were documented after beta-blockers therapy was started. No coronary artery stenosis were detected. The US-ILVT was successfully treated by ablating the proximal site of the left anterior fascicle (LAF), where diastolic potential (P1) and pre-systolic potential (P2) with inverted sequence were detected during the electrophysiology study (EP) study. Cardiac magnetic resonance imaging (CMR) was performed with demonstration of intramyocardial late gadolinium enhancement (LGE) at the level of middle-basal portions of interventricular septum and basal portion of infero-lateral wall and no edema detection. A single catheter implantable cardioverter defibrillator (ICD) was implanted as secondary prevention. VT has never recurred during 3 months of follow-up with remote control of ICD. DISCUSSION To the best of our knowledge, this is the first report in which US-ILVT was associated with ventricular septal LGE, suggestive of previous myocarditis, as substrate of re-entrant circuit. Scar-related ventricular tachycardia circuit is also suggested by the evidence of a premature ventricular complex (PVC) as trigger of recurrent VT in our case.
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Affiliation(s)
- Lorenzo Zaccaro
- Division of Cardiology, Umberto Parini Regional Hospital, Aosta, Italy; Division of Cardiology, Department of Medical Science, University of Turin, Turin, Italy
| | - Stefano Avondo
- Division of Cardiology, Umberto Parini Regional Hospital, Aosta, Italy; Division of Cardiology, Department of Medical Science, University of Turin, Turin, Italy
| | - Stefano Albani
- Division of Cardiology, Umberto Parini Regional Hospital, Aosta, Italy.
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18
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Tan MC, Ang QX, Yeo YH, Deshmukh A, Scott LR, Hussein AA, Sroubek J, Santangeli P, Wazni OM, Lee JZ. Thirty-day readmission after catheter ablation for ventricular tachycardia: associated factors and outcomes. J Interv Card Electrophysiol 2024; 67:513-521. [PMID: 37530968 DOI: 10.1007/s10840-023-01614-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/23/2023] [Indexed: 08/03/2023]
Abstract
BACKGROUND Patients with ventricular tachycardia (VT) who require VT ablation are at high risk for readmission. This study aimed to identify the causes and outcomes of 30-day readmission after VT ablation and to analyze the predictors of recurrent VT that required rehospitalization. METHODS Using the Nationwide Readmission Database, our study included patients aged ≥ 18 years who underwent VT catheter ablation between 2017 and 2020. Based on the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM), we identified the causes of 30-day readmission by organ systems and analyzed their outcomes. Additional analysis was performed to determine the independent predictors of 30-day readmission for recurrent VT. RESULTS Of the 4228 patients who underwent VT ablation, 14.2% were readmitted within 30 days of the procedure. The most common cause of readmission was cardiac events (73.6%). Among the cardiac-related readmissions, recurrent VT (47.7%) and congestive heart failure (CHF) (12.9%) were the most common etiologies. Among the readmissions, patients readmitted for CHF had the highest rate of readmission mortality (9.2%). Of the patients readmitted within 30 days of the procedure, 278 patients (6.8%) were readmitted for recurrent VT. Via multivariable analysis, CHF (OR: 1.97; 95% CI: 1.12-3.47; P = 0.02) and non-elective index admissions (OR: 1.63; 95% CI: 1.04-2.55; P = 0.03) were identified as the independent predictors predictive of 30-day readmissions for recurrent VT. CONCLUSIONS Recurrent VT was the most common cause of readmission after the VT ablation procedure, and CHF and non-elective index admissions were the significant predictors of these early readmissions. Readmission due to CHF had the highest mortality rate during readmission.
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Affiliation(s)
- Min Choon Tan
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ, USA
- Department of Internal Medicine, New York Medical College at Saint Michael's Medical Center, Newark, NJ, USA
| | - Qi Xuan Ang
- Department of Internal Medicine, Sparrow Health System and Michigan State University, East Lansing, MI, USA
| | - Yong Hao Yeo
- Department of Internal Medicine/Pediatrics, Beaumont Health, Royal Oak, MI, USA
| | - Abhishek Deshmukh
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Luis R Scott
- Department of Cardiovascular Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - Ayman A Hussein
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Jakub Sroubek
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Pasquale Santangeli
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Oussama M Wazni
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA
| | - Justin Z Lee
- Department of Cardiovascular Medicine, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH, 44195, USA.
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19
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Lenarczyk R, Zeppenfeld K, Tfelt-Hansen J, Heinzel FR, Deneke T, Ene E, Meyer C, Wilde A, Arbelo E, Jędrzejczyk-Patej E, Sabbag A, Stühlinger M, di Biase L, Vaseghi M, Ziv O, Bautista-Vargas WF, Kumar S, Namboodiri N, Henz BD, Montero-Cabezas J, Dagres N. Management of patients with an electrical storm or clustered ventricular arrhythmias: a clinical consensus statement of the European Heart Rhythm Association of the ESC-endorsed by the Asia-Pacific Heart Rhythm Society, Heart Rhythm Society, and Latin-American Heart Rhythm Society. Europace 2024; 26:euae049. [PMID: 38584423 PMCID: PMC10999775 DOI: 10.1093/europace/euae049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 04/09/2024] Open
Abstract
Electrical storm (ES) is a state of electrical instability, manifesting as recurrent ventricular arrhythmias (VAs) over a short period of time (three or more episodes of sustained VA within 24 h, separated by at least 5 min, requiring termination by an intervention). The clinical presentation can vary, but ES is usually a cardiac emergency. Electrical storm mainly affects patients with structural or primary electrical heart disease, often with an implantable cardioverter-defibrillator (ICD). Management of ES requires a multi-faceted approach and the involvement of multi-disciplinary teams, but despite advanced treatment and often invasive procedures, it is associated with high morbidity and mortality. With an ageing population, longer survival of heart failure patients, and an increasing number of patients with ICD, the incidence of ES is expected to increase. This European Heart Rhythm Association clinical consensus statement focuses on pathophysiology, clinical presentation, diagnostic evaluation, and acute and long-term management of patients presenting with ES or clustered VA.
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Affiliation(s)
- Radosław Lenarczyk
- Medical University of Silesia, Division of Medical Sciences, Department of Cardiology and Electrotherapy, Silesian Center for Heart Diseases, Skłodowskiej-Curie 9, 41-800 Zabrze, Poland
| | - Katja Zeppenfeld
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jacob Tfelt-Hansen
- The Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- The Department of Forensic Medicine, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Frank R Heinzel
- Cardiology, Angiology, Intensive Care, Städtisches Klinikum Dresden Campus Friedrichstadt, Dresden, Germany
| | - Thomas Deneke
- Clinic for Interventional Electrophysiology, Heart Center RHÖN-KLINIKUM Campus Bad Neustadt, Bad Neustadt an der Saale, Germany
- Clinic for Electrophysiology, Klinikum Nuernberg, University Hospital of the Paracelsus Medical University, Nuernberg, Germany
| | - Elena Ene
- Clinic for Interventional Electrophysiology, Heart Center RHÖN-KLINIKUM Campus Bad Neustadt, Bad Neustadt an der Saale, Germany
| | - Christian Meyer
- Division of Cardiology/Angiology/Intensive Care, EVK Düsseldorf, Teaching Hospital University of Düsseldorf, Düsseldorf, Germany
| | - Arthur Wilde
- Department of Cardiology, Amsterdam UMC University of Amsterdam, Amsterdam, the Netherlands
- Amsterdam Cardiovascular Sciences, Heart Failure and arrhythmias, Amsterdam, the Netherlands
| | - Elena Arbelo
- Arrhythmia Section, Cardiology Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain; IDIBAPS, Institut d'Investigació August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Ewa Jędrzejczyk-Patej
- Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Centre for Heart Diseases, Zabrze, Poland
| | - Avi Sabbag
- The Davidai Center for Rhythm Disturbances and Pacing, Chaim Sheba Medical Center, Tel Hashomer, Israel
- School of Medicine, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Markus Stühlinger
- Department of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Luigi di Biase
- Albert Einstein College of Medicine at Montefiore Hospital, New York, NY, USA
| | - Marmar Vaseghi
- UCLA Cardiac Arrythmia Center, Division of Cardiology, Department of Medicine, University of California, Los Angeles, CA, USA
| | - Ohad Ziv
- Case Western Reserve University, Cleveland, OH, USA
- The MetroHealth System Campus, Cleveland, OH, USA
| | | | - Saurabh Kumar
- Department of Cardiology, Westmead Hospital, Westmead Applied Research Centre, University of Sydney, Sydney, Australia
| | | | - Benhur Davi Henz
- Instituto Brasilia de Arritmias-Hospital do Coração do Brasil-Rede Dor São Luiz, Brasilia, Brazil
| | - Jose Montero-Cabezas
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
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20
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Verma A, Essebag V, Neuzil P, Dyrda K, Balt J, Dinov B, Darma A, Arya A, Sacher F, Reddy VY, Boersma L, Grigorov I, De Potter T. Cryocure-VT: the safety and effectiveness of ultra-low-temperature cryoablation of monomorphic ventricular tachycardia in patients with ischaemic and non-ischaemic cardiomyopathies. Europace 2024; 26:euae076. [PMID: 38582974 PMCID: PMC10998960 DOI: 10.1093/europace/euae076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 04/08/2024] Open
Abstract
AIMS The ultra-low-temperature cryoablation (ULTC) ablation system using -196°C N2 cryogen has been reported to create lesions with freeze duration-dependent depth titratable to over 10 mm with minimum attenuation by scar. Cryocure-VT (NCT04893317) was a first-in-human clinical trial evaluating the safety and efficacy of a novel, purpose-built ULTC catheter in endocardial ablation of scar-dependent ventricular tachycardias (VTs). METHODS AND RESULTS This prospective, multi-centre study enrolled patients referred for de novo or second ablations of recurrent monomorphic VT of both ischaemic and non-ischaemic aetiologies. Primary safety and efficacy endpoints of the study were freedom from device- or procedure-related major adverse events (MAEs) up to 30 days post-ablation, acute non-inducibility of clinical VTs at the end of the procedure, and freedom from sustained VT or implantable defibrillator intervention at 6 months. Ultra-low-temperature cryoablation was performed in 64 patients (age 67 ± 11 years, 78% ischaemic, ejection fraction = 35 ± 10%) at 9 centres. The primary acute effectiveness endpoint was achieved in 94% (51/54) of patients in whom post-ablation induction was attempted. There were no protocol-defined MAEs; four procedure-related serious adverse events resolved without clinical sequelae. At 6-month follow-up, 38 patients (60.3%) remained VT-free, and freedom from defibrillator shock was 81.0%, with no significant difference between ischaemic and non-ischaemic cohorts. In 47 patients with defibrillator for at least 6 months prior to the ablation, the VT burden was reduced from median of 4, inter-quartile range (IQR, 1-9) to 0, IQR (0-2). CONCLUSION In this first-in-human multi-centre experience, endocardial ULTC ablation of monomorphic VT appears safe and effective in patients with both ischaemic-cardiomyopathy and non-ischaemic-cardiomyopathy. CLINICAL TRIAL REGISTRATION NCT04893317.
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Affiliation(s)
- Atul Verma
- Division of Cardiology, McGill University Health Centre, D13.173, 1650 Cedar Avenue, Montreal, QC H3G 1A4, Canada
| | - Vidal Essebag
- Division of Cardiology, McGill University Health Centre, D13.173, 1650 Cedar Avenue, Montreal, QC H3G 1A4, Canada
| | - Petr Neuzil
- Department of Cardiology, Na Homolce Hospital, Prague, Czech Republic
| | - Katia Dyrda
- Department of Medicine, Montreal Heart Institute, Montreal, QC, Canada
| | - Jippe Balt
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
| | - Borislav Dinov
- Department of Electrophysiology, Leipzig Heart Center, Leipzig, Germany
| | - Angeliki Darma
- Department of Electrophysiology, Leipzig Heart Center, Leipzig, Germany
| | - Arash Arya
- Department for Internal Medicine, University Hospital Halle, Halle, Germany
| | - Frederic Sacher
- Bordeaux University Hospital, IHU LIRYC, University of Bordeaux, Bordeaux, France
| | - Vivek Y Reddy
- Department of Cardiology, Na Homolce Hospital, Prague, Czech Republic
- Helmsley Electrophysiology Center, Mount Sinai Fuster Heart Hospital, New York, NY, USA
| | - Lucas Boersma
- Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands
- Department of Heart Failure and Arrhythmias,Amsterdam University Medical Center, Amsterdam, The Netherlands
| | | | - Tom De Potter
- Cardiovascular Center, OLV Hospital, Moorselbaan 164, 9300 Aalst, Belgium
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21
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Schiavone M, Gasperetti A, Compagnucci P, Vogler J, Laredo M, Montemerlo E, Gulletta S, Breitenstein A, Ziacchi M, Martinek M, Casella M, Palmisano P, Kaiser L, Lavalle C, Calò L, Seidl S, Saguner AM, Rovaris G, Kuschyk J, Biffi M, Di Biase L, Dello Russo A, Tondo C, Della Bella P, Tilz R, Forleo GB. Impact of ventricular tachycardia ablation in subcutaneous implantable cardioverter defibrillator carriers: a multicentre, international analysis from the iSUSI project. Europace 2024; 26:euae066. [PMID: 38584394 PMCID: PMC10999646 DOI: 10.1093/europace/euae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/14/2024] [Indexed: 04/09/2024] Open
Abstract
AIMS Catheter ablation (CA) of ventricular tachycardia (VT) has become an important tool to improve clinical outcomes in patients with appropriate transvenous implantable cardioverter defibrillator (ICD) shocks. The aim of our analysis was to test whether VT ablation (VTA) impacts long-term clinical outcomes even in subcutaneous ICD (S-ICD) carriers. METHODS AND RESULTS International Subcutaneous Implantable Cardioverter Defibrillator (iSUSI) registry patients who experienced either an ICD shock or a hospitalization for monomorphic VT were included in this analysis. Based on an eventual VTA after the index event, patients were divided into VTA+ vs. VTA- cohorts. Primary outcome of the study was the occurrence of a combination of device-related appropriate shocks, monomorphic VTs, and cardiovascular mortality. Secondary outcomes were addressed individually. Among n = 1661 iSUSI patients, n = 211 were included: n = 177 experiencing ICD shocks and n = 34 hospitalized for VT. No significant differences in baseline characteristics were observed. Both the crude and the yearly event rate of the primary outcome (5/59 and 3.8% yearly event rate VTA+ vs. 41/152 and 16.4% yearly event rate in the VTA-; log-rank: P value = 0.0013) and the cardiovascular mortality (1/59 and 0.7% yearly event rate VTA+ vs. 13/152 and 4.7% yearly event rate VTA-; log-rank P = 0.043) were significantly lower in the VTA + cohort. At multivariate analysis, VTA was the only variable remaining associated with a lower incidence of the primary outcome [adjusted hazard ratio 0.262 (0.100-0.681), P = 0.006]. CONCLUSION In a real-world registry of S-ICD carriers, the combined study endpoint of arrhythmic events and cardiovascular mortality was lower in the patient cohort undergoing VTA at long-term follow-up. CLINICALTRIALS.GOV IDENTIFIER NCT0473876.
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Affiliation(s)
- Marco Schiavone
- Department of Clinical Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino, IRCCS, Milan, Italy
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Alessio Gasperetti
- Cardiology Unit, Luigi Sacco University Hospital, Via Giovanni Battista Grassi, 74, Milan 20157, Italy
- Department of Cardiology, Johns Hopkins University, 1800 Orleans Street, Baltimore, MD 21218, USA
| | - Paolo Compagnucci
- Cardiology and Arrhythmology Clinic, University Hospital ‘Ospedali Riuniti’, Ancona, Italy
| | - Julia Vogler
- Department of Rhythmology, University Heart Center Lübeck, Lubeck, Germany
| | - Mikael Laredo
- Institut de Cardiologie, Groupe Hospitalier Pitié-Salpêtrière and Sorbonne Université, Paris, France
| | | | - Simone Gulletta
- Arrhythmology and Electrophysiology Unit, San Raffaele Hospital, IRCCS, Milan, Italy
| | | | - Matteo Ziacchi
- Cardiology Unit, IRCCS, Department of Experimental, Diagnostic and Specialty Medicine, Sant'Orsola Hospital, University of Bologna, Bologna, Italy
| | - Martin Martinek
- Internal Medicine 2 with Cardiology, Angiology, and Intensive Care Medicine, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Michela Casella
- Cardiology and Arrhythmology Clinic, University Hospital ‘Ospedali Riuniti’, Ancona, Italy
| | | | - Lukas Kaiser
- Department of Cardiology and Critical Care Medicine, St. George Klinik Asklepios, Hamburg, Germany
| | - Carlo Lavalle
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Leonardo Calò
- Department of Cardiology, Policlinico Casilino, Rome, Italy
| | - Sebastian Seidl
- Internal Medicine 2 with Cardiology, Angiology, and Intensive Care Medicine, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Ardan M Saguner
- Cardiology Clinic, University Hospital Zurich, Zurich, Switzerland
| | | | - Jürgen Kuschyk
- Cardiology Unit, University Medical Centre Mannheim, Manheim, Germany
| | - Mauro Biffi
- Cardiology Unit, IRCCS, Department of Experimental, Diagnostic and Specialty Medicine, Sant'Orsola Hospital, University of Bologna, Bologna, Italy
| | - Luigi Di Biase
- Cardiac Arrhythmia Center, Division of Cardiology, Montefiore-Einstein Center, Bronx, NY, USA
| | - Antonio Dello Russo
- Cardiology and Arrhythmology Clinic, University Hospital ‘Ospedali Riuniti’, Ancona, Italy
| | - Claudio Tondo
- Department of Clinical Electrophysiology & Cardiac Pacing, Centro Cardiologico Monzino, IRCCS, Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Paolo Della Bella
- Arrhythmology and Electrophysiology Unit, San Raffaele Hospital, IRCCS, Milan, Italy
| | - Roland Tilz
- Department of Rhythmology, University Heart Center Lübeck, Lubeck, Germany
| | - Giovanni B Forleo
- Cardiology Unit, Luigi Sacco University Hospital, Via Giovanni Battista Grassi, 74, Milan 20157, Italy
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22
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Agarwal S, Abideen Asad ZU, Munir MB, Kowlgi GN, Deshmukh A, DeSimone CV. Regional differences in the outcomes of catheter ablation for ventricular tachycardia in the United States. Heart Rhythm 2024:S1547-5271(24)00287-X. [PMID: 38518951 DOI: 10.1016/j.hrthm.2024.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 03/24/2024]
Affiliation(s)
- Siddharth Agarwal
- Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Zain Ul Abideen Asad
- Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Muhammad Bilal Munir
- Division of Cardiovascular Medicine, University of California Davis, Sacramento, California
| | - Gurukripa N Kowlgi
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Abhishek Deshmukh
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
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23
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Romito G, Gemma N, Dondi F, Mazzoldi C, Fasoli S, Cipone M. Efficacy and safety of antiarrhythmic therapy in dogs with naturally acquired tachyarrhythmias treated with amiodarone or sotalol: a retrospective analysis of 64 cases. J Vet Cardiol 2024; 53:20-35. [PMID: 38608438 DOI: 10.1016/j.jvc.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/14/2024]
Abstract
INTRODUCTION/OBJECTIVE Studies on the use of amiodarone or sotalol are limited in dogs. Therefore, this study aimed to provide data on the efficacy and safety of these drugs in dogs with ventricular tachyarrhythmia (VT) and/or supraventricular tachyarrhythmia (SvT). ANIMALS, MATERIALS, AND METHODS Dogs with VT and/or SvT treated with amiodarone or sotalol as a first-line therapy were retrospectively evaluated. Signalment, clinical, diagnostic, therapeutic, and outcome data were retrieved. For VT, efficacy was demonstrated through a decrease of the Lown-Wolf grade to less than five or a reduction of at least 85% in the number of ventricular premature complexes observed on Holter monitoring. For SvT, efficacy was represented by cardioversion or a reduction in the mean heart rate on Holter monitoring ≤140 beats/min. Treatment-related side effects (TRSEs) were classified as clinically relevant and irrelevant. Statistical analysis was performed to compare data before and after antiarrhythmic prescription. RESULTS Sixty-four dogs were included. Amiodarone and sotalol were efficacious in treating both VT (85.7% and 90.0% of cases, respectively) and SvT (75% and 71.4% of cases, respectively). No significant differences were found when comparing their efficacy rates in dogs with VT and SvT (P=0.531 and 0.483, respectively). Clinically relevant TRSEs were rare with both amiodarone and sotalol (8.3% and 5% of cases, respectively), while clinically irrelevant TRSEs occurred more frequently with amiodarone (29.2%) than with sotalol (10%). DISCUSSION In dogs with tachyarrhythmias, amiodarone and sotalol are generally efficacious and safe, as clinically relevant TRSEs seem rare. CONCLUSIONS This study provides novel data on the effects of amiodarone and sotalol in dogs with tachyarrhythmias.
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Affiliation(s)
- G Romito
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy.
| | - N Gemma
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
| | - F Dondi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
| | - C Mazzoldi
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
| | - S Fasoli
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
| | - M Cipone
- Department of Veterinary Medical Sciences, Alma Mater Studiorum - University of Bologna, via Tolara di Sopra 50, 40064, Ozzano dell'Emilia, Italy
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24
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Chen J, Quam BL, Li C, Liu X, Chen PS, Cha YM. Characterization of skin sympathetic nerve activity in patients undergoing ablation of ventricular tachycardia. Heart Rhythm 2024:S1547-5271(24)00279-0. [PMID: 38493990 DOI: 10.1016/j.hrthm.2024.03.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 03/19/2024]
Affiliation(s)
- Jingjing Chen
- Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Brent L Quam
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Chuanwei Li
- Department of Cardiovascular Medicine, Chongqing Emergency Medical Center, Chongqing, China
| | - Xiao Liu
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Peng-Sheng Chen
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Yong-Mei Cha
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.
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25
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Okada M, Tanaka K, Tanaka N. Enhanced identification of ventricular tachycardia isthmus within a scar using Ripple map and Octaray catheter. Indian Pacing Electrophysiol J 2024:S0972-6292(24)00026-3. [PMID: 38460884 DOI: 10.1016/j.ipej.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/25/2024] [Accepted: 03/07/2024] [Indexed: 03/11/2024] Open
Affiliation(s)
- Masato Okada
- Cardiovascular Center, Sakurabashi Watanabe Hospital, Osaka, Japan.
| | - Koji Tanaka
- Cardiovascular Center, Sakurabashi Watanabe Hospital, Osaka, Japan.
| | - Nobuaki Tanaka
- Cardiovascular Center, Sakurabashi Watanabe Hospital, Osaka, Japan.
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26
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Savastano S, Baldi E, Compagnoni S, Rordorf R, Sanzo A, Gentile FR, Dusi V, Frea S, Gravinese C, Cauti FM, Iannopollo G, De Sensi F, Gandolfi E, Frigerio L, Crea P, Zagari D, Casula M, Sangiorgi G, Persampieri S, Dell’Era G, Patti G, Colombo C, Mugnai G, Notaristefano F, Barengo A, Falcetti R, Perego GB, D’Angelo G, Tanese N, Currao A, Sgromo V, De Ferrari GM. Electrical storm treatment by percutaneous stellate ganglion block: the STAR study. Eur Heart J 2024; 45:823-833. [PMID: 38289867 PMCID: PMC10919918 DOI: 10.1093/eurheartj/ehae021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/27/2023] [Accepted: 01/10/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND AND AIMS An electrical storm (ES) is a clinical emergency with a paucity of established treatment options. Despite initial encouraging reports about the safety and effectiveness of percutaneous stellate ganglion block (PSGB), many questions remained unsettled and evidence from a prospective multicentre study was still lacking. For these purposes, the STAR study was designed. METHODS This is a multicentre observational study enrolling patients suffering from an ES refractory to standard treatment from 1 July 2017 to 30 June 2023. The primary outcome was the reduction of treated arrhythmic events by at least 50% comparing the 12 h following PSGB with the 12 h before the procedure. STAR operators were specifically trained to both the anterior anatomical and the lateral ultrasound-guided approach. RESULTS A total of 131 patients from 19 centres were enrolled and underwent 184 PSGBs. Patients were mainly male (83.2%) with a median age of 68 (63.8-69.2) years and a depressed left ventricular ejection fraction (25.0 ± 12.3%). The primary outcome was reached in 92% of patients, and the median reduction of arrhythmic episodes between 12 h before and after PSGB was 100% (interquartile range -100% to -92.3%). Arrhythmic episodes requiring treatment were significantly reduced comparing 12 h before the first PSGB with 12 h after the last procedure [six (3-15.8) vs. 0 (0-1), P < .0001] and comparing 1 h before with 1 h after each procedure [2 (0-6) vs. 0 (0-0), P < .001]. One major complication occurred (0.5%). CONCLUSIONS The findings of this large, prospective, multicentre study provide evidence in favour of the effectiveness and safety of PSGB for the treatment of refractory ES.
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Affiliation(s)
- Simone Savastano
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
| | - Enrico Baldi
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
| | - Sara Compagnoni
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
- Department of Molecular Medicine, Section of Cardiology, University of Pavia, Pavia, Italy
| | - Roberto Rordorf
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
| | - Antonio Sanzo
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
| | - Francesca Romana Gentile
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
- Department of Molecular Medicine, Section of Cardiology, University of Pavia, Pavia, Italy
| | - Veronica Dusi
- Division of Cardiology, Molinette Hospital, Città della Salute e della Scienza, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Simone Frea
- Division of Cardiology, Molinette Hospital, Città della Salute e della Scienza, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Carol Gravinese
- Division of Cardiology, Molinette Hospital, Città della Salute e della Scienza, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
| | | | | | | | - Edoardo Gandolfi
- Division of Cardiology, Santi Antonio e Biagio e Cesare Arrigo Hospital, Alessandria, Italy
| | - Laura Frigerio
- Division of Cardiology, Santi Antonio e Biagio e Cesare Arrigo Hospital, Alessandria, Italy
- Division of Cardiology, Maggiore Hospital, Crema, Italy
| | - Pasquale Crea
- Division of Cardiology, G. Martino Hospital, Messina, Italy
| | - Domenico Zagari
- Division of Cardiology, Humanitas Mater Domini, Castellanza, Italy
| | - Matteo Casula
- Division of Cardiology, ‘San Michele’ dell’ARNAS G. Brotzu Hospital, Cagliari, Italy
| | | | | | - Gabriele Dell’Era
- Division of Cardiology, Maggiore della carità Hospital, Novara, Italy
| | - Giuseppe Patti
- Division of Cardiology, Maggiore della carità Hospital, Novara, Italy
- University of Eastern Piedmont ‘Amedeo Avogadro’, Novara, Italy
| | - Claudia Colombo
- Division of Cardiology, ‘A. De Gasperis’, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Giacomo Mugnai
- Division of Cardiology, Department of Medicine, School of Medicine, University of Verona, Verona, Italy
| | | | - Alberto Barengo
- Division of Cardiology, Santa Maria della Misericordia Hospital, Perugia, Italy
| | - Roberta Falcetti
- Division of Cardiology, Sant’Andrea University Hospital, Rome, Italy
| | | | - Giuseppe D’Angelo
- Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Hospital and Vita-Salute University, Milan, Italy
| | - Nikita Tanese
- Department of Cardiac Electrophysiology and Arrhythmology, IRCCS San Raffaele Hospital and Vita-Salute University, Milan, Italy
| | - Alessia Currao
- Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100 Pavia, Italy
| | - Vito Sgromo
- AREU Azienda Regionale Emergenza Urgenza, AAT Pavia Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gaetano Maria De Ferrari
- Division of Cardiology, Molinette Hospital, Città della Salute e della Scienza, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
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Shen L, Liu S, Zhang Z, Xiong Y, Lai Z, Hu F, Zheng L, Yao Y. Catheter ablation of ventricular tachycardia in patients with arrhythmogenic right ventricular cardiomyopathy and biventricular involvement. Europace 2024; 26:euae059. [PMID: 38417843 PMCID: PMC10946245 DOI: 10.1093/europace/euae059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/09/2024] [Accepted: 02/26/2024] [Indexed: 03/01/2024] Open
Abstract
AIMS Catheter ablation of ventricular tachycardia (VT) improves VT-free survival in 'classic' arrhythmogenic right ventricular cardiomyopathy (ARVC). This study aims to investigate electrophysiological features and ablation outcomes in patients with ARVC and biventricular (BiV) involvement. METHODS AND RESULTS We assembled a retrospective cohort of definite ARVC cases with sustained VTs. Patients were divided into the BiV (BiV involvement) group and the right ventricular (RV) (isolated RV involvement) group based on the left ventricular systolic function detected by cardiac magnetic resonance. All patients underwent electrophysiological mapping and VT ablation. Acute complete success was non-inducibility of any sustained VT, and the primary endpoint was VT recurrence. Ninety-eight patients (36 ± 14 years; 87% male) were enrolled, including 50 in the BiV group and 48 in the RV group. Biventricular involvement was associated with faster clinical VTs, a higher VT inducibility, and more extensive arrhythmogenic substrates (all P < 0.05). Left-sided VTs were observed in 20% of the BiV group cases and correlated with significantly reduced left ventricular systolic function. Catheter ablation achieved similar acute efficacy between these two groups, whereas the presence of left-sided VTs increased acute ablation failure (40 vs. 5%, P = 0.012). Over 51 ± 34 months [median, 48 (22-83) months] of follow-up, cumulative VT-free survival was 52% in the BiV group and 58% in the RV group (P = 0.353). A multivariate analysis showed that younger age, lower RV ejection fraction (RVEF), and non-acute complete ablation success were associated with VT recurrence in the BiV group. CONCLUSION Biventricular involvement implied a worse arrhythmic phenotype and increased the risk of left-sided VTs, while catheter ablation maintained its efficacy for VT control in this population. Younger age, lower RVEF, and non-acute complete success predicted VT recurrence after ablation.
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Affiliation(s)
- Lishui Shen
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
- Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China
| | - Shangyu Liu
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
- Department of Cardiology, The First Hospital of Hebei Medical University, Shijiazhuang 050031, China
| | - Zhenhao Zhang
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Yulong Xiong
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Zihao Lai
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Feng Hu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Lihui Zheng
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Yan Yao
- Arrhythmia Center, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Fuwai Hospital, No. 167 North Lishi Road, Xicheng District, Beijing 100037, China
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Nearing BD, Verrier RL. Novel application of convolutional neural networks for artificial intelligence-enabled modified moving average analysis of P-, R-, and T-wave alternans for detection of risk for atrial and ventricular arrhythmias. J Electrocardiol 2024; 83:12-20. [PMID: 38185007 DOI: 10.1016/j.jelectrocard.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND T-wave alternans (TWA) analysis was shown in >14,000 individuals studied worldwide over the past two decades to be a useful tool to assess risk for cardiovascular mortality and sudden arrhythmic death. TWA analysis by the modified moving average (MMA) method is FDA-cleared and CMS-reimbursed (CAG-00293R2). OBJECTIVE Because the MMA technique is inherently suitable for dynamic tracking of alternans levels, it was selected for development of artificial intelligence (AI)-enabled algorithms using convolutional neural networks (CNN) to achieve rapid, efficient, and accurate assessment of P-wave alternans (PWA), R-wave alternans (RWA), and TWA. METHODS The novel application of CNN algorithms to enhance MMA analysis generated efficient and powerful pattern-recognition algorithms for highly accurate alternans quantification. Algorithm reliability and accuracy were verified using simulated ECGs achieving R2 ≥ 0.99 (p < 0.01) in response to noise inputs and artifacts that emulate real-life conditions. RESULTS Accuracy of the new AI-MMA algorithms in TWA analysis (n = 5) was significantly improved over unsupervised, automated MMA output (p = 0.036) and did not differ from conventional MMA analysis with expert overreading (p = 0.21). Accuracy of AI-MMA in PWA analysis (n = 45) was significantly improved over unsupervised, automated MMA output (p < 0.005) and did not differ from conventional MMA analysis with expert overreading (p = 0.89). TWA and PWA by AI-MMA were correlated with conventional MMA output over-read by an expert reader (R2 = 0.7765, R2 = 0.9504, respectively). CONCLUSION This novel technique for AI-MMA analysis could be suitable for use in diverse in-hospital and out-of-hospital monitoring systems, including cardiac implantable electronic devices and smartwatches, for tracking atrial and ventricular arrhythmia risk.
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Affiliation(s)
- Bruce D Nearing
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Richard L Verrier
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Heeger CH, Tilz RR. [ Ventricular tachycardia-without structural heart disease: History]. Herzschrittmacherther Elektrophysiol 2024; 35:102-109. [PMID: 38407580 PMCID: PMC10923990 DOI: 10.1007/s00399-024-01007-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2024] [Indexed: 02/27/2024]
Abstract
This article focuses on ventricular arrythmias without evidence for structural heart disease. There are many different reasons for this type of arrythmia and there is still a gap of knowledge. Starting with the first description of this disease, we present the diagnosis and management with medication, and finally catheter ablation procedures from the beginning to how it is currently treated and how it possibly will be treated in the near future.
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Affiliation(s)
- Christian-Hendrik Heeger
- Department für Rhythmologie, Abteilung für Kardiologie & Internistische Intensivmedizin, Asklepios Klinik Altona, Paul-Ehrlich-Straße 1, 22763, Hamburg, Deutschland.
| | - Roland Richard Tilz
- Klinik für Rhythmologie, Universitäres Herzzentrum Lübeck, Universitätsklinikum Schleswig-Holstein (UKSH), Ratzeburger Allee 160, 23538, Lübeck, Deutschland.
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Monkhouse C, Elliott J, Whittaker-Axon S, Collinson J, Chow A, Moore P, Muthumala A, Honarbakhsh S, Hunter R, Lambiase P, Ahsan S, Sporton S. Detecting deceased patients on cardiac device remote monitoring: A case series and management guide for cardiac device services. Heart Rhythm 2024; 21:303-312. [PMID: 38048935 DOI: 10.1016/j.hrthm.2023.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/06/2023]
Abstract
BACKGROUND Remote monitoring (RM) of implantable cardiac devices provides substantial and complex information, presenting new challenges such as detection of a patient's death. OBJECTIVE This study aims to describe RM transmissions indicating death and propose a management strategy for services. METHODS The study included consecutive ambulatory outpatients whose deaths were detected via RM. Clinical and device data were collected from electronic records, and ethical approval was obtained from the service's institutional review board. RESULTS Over a 9-year period (2014-2023), 28 patients were detected. The deceased patients had implantable cardioverter-defibrillators, pacemakers, and implantable loop recorders. In 54% of the cases, the patient's death had already been recognized. Alert transmissions indicating death were commonly related to ventricular arrhythmia events, but also due to lead measurements, and implantable loop recorder battery status. Several diagnostic features may indicate a patient's death. The most reliable was the presenting electrogram, demonstrating base rate pacing with no capture. Device diagnostics, lead parameters, and arrhythmia recordings may indicate death; however, not all cases present with recordings and diagnosis may not be conclusive. A majority (82%) had ventricular arrhythmia at the time of death. In cases where defibrillator shocks were delivered, the arrhythmia reinitiated shortly after successful cardioversion. Delayed therapy was observed, and some patients did not receive defibrillator shocks because of discriminators or because the arrhythmia rate fell below the shock zone. CONCLUSION Detecting a patient death via RM presents unique challenges and considerations for services. Standard operational policies and legal consultation should be established to address the implications.
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Affiliation(s)
| | - James Elliott
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | | | - Jason Collinson
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Anthony Chow
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Philip Moore
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Amal Muthumala
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Shohreh Honarbakhsh
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Ross Hunter
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Pier Lambiase
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Syed Ahsan
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
| | - Simon Sporton
- Electrophysiology, Barts Heart Centre, West Smithfield, London, United Kingdom
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Lopez MD, Vogler J, Aboud A, Heeger CH, Tilz RR. Surgical ventricular reconstruction and intraoperative cryoablation in a patient with drug-refractory ventricular tachycardia and left ventricular thrombus: a case report. Eur Heart J Case Rep 2024; 8:ytae113. [PMID: 38487587 PMCID: PMC10939119 DOI: 10.1093/ehjcr/ytae113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/14/2024] [Accepted: 02/22/2024] [Indexed: 03/17/2024]
Abstract
Background Despite modern techniques for ablation of ventricular tachycardia (VT), the procedure faces challenges such as deep intramural substrates or inaccessibility of the pericardial space. We aim to present a case of successful surgical treatment of a patient with drug-refractory VT, an apical aneurysm, large left ventricular (LV) thrombus, and recurrent implantable cardioverter defibrillator (ICD) shocks following failed epicardial catheter ablation. Case summary A 67-year-old male with a history of ischaemic cardiomyopathy was brought to the emergency room after a syncope because of VT. The VT was terminated by an external cardioversion prior to admission. The ICD interrogation showed an episode of sustained monomorphic VT with eight appropriate but mostly ineffective ICD shocks. An echocardiogram revealed an apical aneurysm with a thrombus. Anticoagulation and antiarrhythmic drug therapy were initiated. Days later, the patient suffered recurrent episodes of sustained VTs, refractory to pharmacological therapy, and epicardial ablation; therefore, following aneurysmectomy and thrombus removal, a reconstruction of the LV and surgical endocardial cryoablation were performed. In addition, ICD extraction was done due to recurrent bacteraemia with Staphylococcus aureus. A subcutaneous ICD was later implanted. After surgery, the patient remained free of any VT episodes during 44 months of follow-up. Conclusion Combined surgical ventricular reconstruction and intraoperative cryoablation may be considered as an alternative, highly effective therapy in patients with drug-refractory VTs in the setting of a LV thrombus.
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Affiliation(s)
- Maryuri Delgado Lopez
- Department of Rhythmology, University Heart Center Lübeck, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
| | - Julia Vogler
- Department of Rhythmology, University Heart Center Lübeck, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
| | - Anas Aboud
- Department of Cardiac and Thoracic Vascular Surgery, University of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Christian-Hendrik Heeger
- Department of Rhythmology, University Heart Center Lübeck, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
| | - Roland Richard Tilz
- Department of Rhythmology, University Heart Center Lübeck, University Hospital Schleswig-Holstein (UKSH), Campus Lübeck, Ratzeburger Allee 160, Lübeck 23538, Germany
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Block M, Klein HU. [History of the implantable cardioverter-defibrillator in Germany]. Herzschrittmacherther Elektrophysiol 2024; 35:55-67. [PMID: 38421401 PMCID: PMC10923992 DOI: 10.1007/s00399-024-01001-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2024] [Indexed: 03/02/2024]
Abstract
The implantable cardioverter-defibrillator (ICD) was a breakthrough in the prevention of sudden cardiac death. After years of technical development in the USA, Michel Mirowski succeeded in proving reliable automatic defibrillation of ventricular tachyarrhythmias through initial human implantations in 1980, despite many obstacles. Nearly 4 years later, the first patients received ICDs at multiple centers in Germany. Subsequently, outside the USA, Germany became the country with highest implantation rates. The absolute number of implantations remained small as long as implantations required epicardial defibrillation electrodes and therefore thoracotomy by cardiac surgeons. Pacemaker-like implantation using a transvenous defibrillation electrode with a pectoral ICD became feasible in the early 1990s pushing implantation rates to the next level. Technical advancements were accompanied by clinical research in Germany, and often, the first-in-human studies were conducted in Germany. In 1991, the first guidelines for indications were established in the USA and Germany. Several randomized studies on indications were published between 1996 and 2009, mostly led by American teams with German participation, but also under German leadership (CASH, CAT, DINAMIT, IRIS). The DANISH study in 2016 questioned the results of these long-standing studies. Instead of providing ICDs to patients using a broad indication, future efforts aim to identify patients who, despite optimal medical therapy, cardiac resynchronization therapy (CRT), and/or catheter ablation, need protection against sudden cardiac death. Risk scores incorporating myocardial scars in magnetic resonance imaging (MRI) and genetic information are expected to contribute to more individualized and effective indications.
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Francia P, Falasconi G, Penela D, Viveros D, Alderete J, Saglietto A, Bellido AF, Martí-Almor J, Franco-Ocaña P, Soto-Iglesias D, Zaraket F, Turturiello D, Berruezo A. Scar architecture affects the electrophysiological characteristics of induced ventricular arrhythmias in hypertrophic cardiomyopathy. Europace 2024; 26:euae050. [PMID: 38375690 PMCID: PMC10914403 DOI: 10.1093/europace/euae050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 02/09/2024] [Indexed: 02/21/2024] Open
Abstract
AIMS Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) detects myocardial scarring, a risk factor for ventricular arrhythmias (VAs) in hypertrophic cardiomyopathy (HCM). The LGE-CMR distinguishes core, borderzone (BZ) fibrosis, and BZ channels, crucial components of re-entry circuits. We studied how scar architecture affects inducibility and electrophysiological traits of VA in HCM. METHODS AND RESULTS We correlated scar composition with programmed ventricular stimulation-inducible VA features using LGE intensity maps. Thirty consecutive patients were enrolled. Thirteen (43%) were non-inducible, 6 (20%) had inducible non-sustained, and 11 (37%) had inducible sustained mono (MMVT)- or polymorphic VT/VF (PVT/VF). Of 17 induced VA, 13 (76%) were MMVT that either ended spontaneously, persisted as sustained monomorphic, or degenerated into PVT/VF. Twenty-seven patients (90%) had LGE. Of these, 17 (57%) had non-sustained or sustained inducible VA. Scar mass significantly increased (P = 0.002) from non-inducible to inducible non-sustained and sustained VA patients in both the BZ and core components. Borderzone channels were found in 23%, 67%, and 91% of non-inducible, inducible non-sustained, and inducible sustained VA patients (P = 0.003). All 13 patients induced with MMVT or monomorphic-initiated PVT/VF had LGE. The origin of 10/13 of these VTs matched scar location, with 8/10 of these LGE regions showing BZ channels. During follow-up (20 months, interquartile range: 7-37), one patient with BZ channels and inducible PVT had an ICD shock for VF. CONCLUSION Scar architecture determines inducibility and electrophysiological traits of VA in HCM. Larger studies should explore the role of complex LGE patterns in refining risk assessment in HCM patients.
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Affiliation(s)
- Pietro Francia
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
- Cardiology Unit, Department of Clinical and Molecular Medicine, Sant’Andrea Hospital, University Sapienza, Rome, Italy
| | - Giulio Falasconi
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
- IRCCS Humanitas Research Hospital, Cardiovascular Department, Milan, Italy
| | - Diego Penela
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
- IRCCS Humanitas Research Hospital, Cardiovascular Department, Milan, Italy
| | - Daniel Viveros
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - José Alderete
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Andrea Saglietto
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
- Division of Cardiology, Cardiovascular and Thoracic Department, ‘Citta della Salute e della Scienza Hospital, Turin, Italy
| | - Aldo Francisco Bellido
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Julio Martí-Almor
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Paula Franco-Ocaña
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - David Soto-Iglesias
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Fatima Zaraket
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Dario Turturiello
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
| | - Antonio Berruezo
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, C/Vilana 12, 08022 Barcelona, Spain
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Klein HU, Trappe HJ, Frank G. [History of surgical treatment of cardiac arrhythmias in Germany : Surgical treatment of ventricular tachycardia and supraventricular tachycardia, especially pre-excitation syndromes (WPW)]. Herzschrittmacherther Elektrophysiol 2024; 35:88-97. [PMID: 38416160 PMCID: PMC10923999 DOI: 10.1007/s00399-024-01012-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2024] [Indexed: 02/29/2024]
Abstract
The history of surgical treatment of ventricular tachycardias (VT) is short, lasting from 1978 until 1993. "Indirect procedures" with infarct scar resection were performed without electrophysiologic studies, whereas "direct procedures" consisted of either complete endocardial incisions ("encircling endocardial ventriculotomy") or large endocardial resections ("endocardial peel-off" technique) after precise epicardial and endocardial mapping procedures. In Germany, the first to report on intra-operative electrophysiologic mapping for VT treatment were Ostermeyer, Breithardt and Seipel in 1979. In 1981, the Hannover group (Frank, Klein) published their first results of surgical treatment of VT. In 1984, Ostermeyer et al. demonstrated that a partial endocardial incision resulted in more beneficial results with less myocardial damage (8% versus 46%) than applying a complete encircling incision. In 1987, the Düsseldorf group reported treatment results of 93 patients. After 5 years, 77% had no VT recurrence, while total mortality after 1 year was 11% and after 5 years 30%. In 1992, the Hannover group reported results of 147 patients after endocardial resection for VT. Total mortality after 3 years was 27%; recurrence of VT events occurred in 18% of the surviving cohort.The history of surgical procedures for supraventricular tachycardia (SVT), in particular Wolff-Parkinson-White (WPW) syndrome, is even shorter than that of surgery for VT. As early as 1969, Sealy, Gallagher and Cox reported the first cases of surgical intervention for WPW syndrome via endocardial access in cardioplegic arrest. In 1984, Guiraudon and Klein reported on a new procedure with epicardial access to the accessory bundle without cardioplegia in laterally localised conduction pathways. In Germany, too, the groups in Düsseldorf (Ostermeyer, Seipel, Breithardt, Borggrefe) from 1980 and the Hannover group (Frank, Klein and Kallfelz) from 1981 performed surgical procedures for WPW syndrome. In 1987, Borggrefe reported on 18 patients with WPW syndrome and atrial fibrillation who had undergone surgery. After 2 years, 14 of 18 patients had no recurrences of tachycardia; in 1989, Frank, Klein and Kallfelz (Hannover) reported on 10 children (2-14 years) operated on using the cryoablation technique. Between 1984 and 1992, a total of 120 patients with SVT, mostly WPW syndrome, were operated on in Hannover; after 42 months, 12 patients had a recurrence of SVT. Two patients died during the reoperation.
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Kono H, Hiroshima K, Nagashima M, Fukunaga M, Korai K, Ando K. Unlocking complex pathways in ventricular tachycardia: Ventricular abnormal activities detection mapping in a case of scar-related multiple ventricular tachycardias. HeartRhythm Case Rep 2024; 10:186-190. [PMID: 38496740 PMCID: PMC10943544 DOI: 10.1016/j.hrcr.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Affiliation(s)
- Hiroyuki Kono
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kenichi Hiroshima
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Michio Nagashima
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Masato Fukunaga
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kengo Korai
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
| | - Kenji Ando
- Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Japan
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Klein HU, Trappe HJ, Frank G. [Short history of the DC-Catheter-Ablation]. Herzschrittmacherther Elektrophysiol 2024; 35:98-101. [PMID: 38421400 PMCID: PMC10923988 DOI: 10.1007/s00399-024-01011-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2024] [Indexed: 03/02/2024]
Abstract
Direct current (DC) catheter ablation in 5 patients aiming to interrupt rapid atrioventricular (AV) conduction with atrial fibrillation and subsequent pacemaker implantation was first published by M. M. Scheinman et al. (San Francisco, CA, USA) in 1982. In Germany, L. Seipel, G. Breithardt, and M. Borggrefe reported their first experience with DC catheter ablation in 1984, followed by the group in Bonn (M. Manz and B. Lüderitz) in 1985. The first international DC catheter ablation registry, which also included four German centers, reported DC catheter ablation results of 127 patients in 24 centers in 1984. Complete AV block was achieved in 71% patients. In 1992, the Hannover group (H‑J. Trappe, H. Klein and J. Huang) reported results of DC catheter ablation of AV conduction performed between 1983 and 1990 in 100 patients (86% with rapid atrial fibrillation, 14% with AV-node reentry tachycardias). The first successful DC catheter ablation in a patient with Wolff-Parkinson-White (WPW) syndrome was reported in 1985 by F. Morady et al. (San Francisco, CA, USA). In 1987, M. Borggrefe et al. were the first to report a switch from DC catheter ablation to a high-frequency (HF) catheter ablation procedure in a patient with WPW syndrome. The use of DC catheter ablation to treat ventricular tachycardia (VT) was described by G. O. Hartzler (Kansas City, MO, USA) in 3 patients in 1983. M. Borggrefe et al. (1989) reported on 24 patients who underwent DC catheter ablation for VT. Of those, 17 patients did not have VT recurrence within the following 14 months. In 1994, the Hannover group (H-J Trappe, H. Klein) published their 5‑year long-term results of DC catheter ablation of VT in 51 patients. VT recurrence occurred in 57% patients and overall mortality was also high (16%). A comparison of DC catheter ablation with HF catheter ablation for recurrent VT was reported in 1994 by G. Gonska et al. (Göttingen, Germany). After 2 years follow-up, success rates were not found to be significantly different.
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Dittrich S, Scheurlen C, van den Bruck JH, Filipovic K, Wörmann J, Erlhöfer S, Schipper JH, Lüker J, Steven D, Sultan A. The omnipolar mapping technology-a new mapping tool to overcome "bipolar blindness" resulting in true high-density maps. J Interv Card Electrophysiol 2024; 67:399-408. [PMID: 37227537 PMCID: PMC10901967 DOI: 10.1007/s10840-023-01562-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/05/2023] [Indexed: 05/26/2023]
Abstract
BACKGROUND Omnipolar mapping (OT) is a novel tool to acquire omnipolar signals for electro-anatomical mapping, displaying true voltage and real-time wavefront direction and speed independent of catheter orientation. The aim was to analyze previously performed left atrial (LA) and left ventricular (LV) maps for differences using automated OT vs. standard bipolar settings (SD) and HD wave (HDW) algorithm. METHODS Previously obtained SD and HDW maps of the LA and LV using a 16-electrode, grid-shaped catheter were retrospectively analyzed by applying automated OT, comparing voltage, point density, pulmonary vein (PV) gaps, and LV scar area. RESULTS In this analysis, 135 maps of 45 consecutive patients (30 treated for LA, 15 for LV arrhythmia) were included. Atrial maps revealed significantly higher point densities using OT (21471) vs. SD (6682) or HDW (12189, p < 0.001). Mean voltage was significantly higher using OT (0.75 mV) vs. SD (0.61 mV) or HDW (0.64 mV, p < 0.001). OT maps detected significantly more PV gaps per patient vs. SD (4 vs. 2), p = 0.001. In LV maps, OT revealed significantly higher point densities (25951) vs. SD (8582) and HDW (17071), p < 0.001. Mean voltage was significantly higher for OT (1.49 mV) vs. SD (1.19 mV) and HDW (1.2 mV), p < 0.001. Detected scar area was significantly smaller using OT (25.3%) vs. SD (33.9%, p < 0.001). CONCLUSION OT mapping leads to significantly different substrate display, map density, voltage, detection of PV gaps, and scar size, compared to SD and HDW in LA and LV procedures. Successful CA might be facilitated due to true HD maps.
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Affiliation(s)
- Sebastian Dittrich
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany.
| | - Cornelia Scheurlen
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | | | - Karlo Filipovic
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Jonas Wörmann
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Susanne Erlhöfer
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Jan-Hendrik Schipper
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Jakob Lüker
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Daniel Steven
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
| | - Arian Sultan
- Department of Electrophysiology, Heart Center, University of Cologne, Cologne, Germany
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Shinoda Y, Komatsu Y, Hattori M, Oda Y, Iioka Y, Hanaki Y, Yamasaki H, Igarashi M, Ishizu T, Nogami A. Optimal cardiac rhythm during substrate mapping in scar-related ventricular tachycardia: Significance of wavefront direction on identifying critical sites. Heart Rhythm 2024:S1547-5271(24)00232-7. [PMID: 38432425 DOI: 10.1016/j.hrthm.2024.02.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 02/11/2024] [Accepted: 02/24/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND A rotational activation pattern (RAP) around the localized line of a conduction block often correlates with sites specific to the critical zones of ventricular tachycardia (VT). The wavefront direction during substrate mapping affects manifestation of the RAP and line of block. OBJECTIVE The purpose of this study was to investigate the most optimal cardiac rhythm for identifying RAP and line of block in substrate mapping. METHODS We retrospectively evaluated 71 maps (median 3205 points/map) in 46 patients (65 ± 15 years; 33% with ischemic cardiomyopathy) who underwent high-density substrate mapping and ablation of scar-related VT. Appearance of a RAP during sinus, right ventricular (RV)-paced, left ventricular (LV)-paced, and biventricular-paced rhythms was investigated. RESULTS RAP was identified in 24 of 71 maps (34%) in the region where wavefronts from a single direction reached but not in the region where wavefronts from multiple directions centripetally collided. The probability of identifying the RAP depended on scar location; that is, anteroseptal and inferoseptal, inferior and apical, and basal lateral RAPs were likely to be identified during sinus/atrial, RV-paced, and LV-paced rhythms, respectively. In 13 patients, the RAP was not evident in the baseline map but became apparent during remapping in the other rhythm, in which the wavefront reached the site earlier within the entire activation time. CONCLUSION The optimal rhythm for substrate mapping depends on the spatial distribution of the area of interest. A paced rhythm with pacing sites near the scar may facilitate the identification of critical VT zones.
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Affiliation(s)
- Yasutoshi Shinoda
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuki Komatsu
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
| | - Masayuki Hattori
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuka Oda
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuto Iioka
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuichi Hanaki
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiro Yamasaki
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Miyako Igarashi
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Tomoko Ishizu
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akihiko Nogami
- Department of Cardiology, Institute of Medicine, University of Tsukuba, Tsukuba, Japan
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Belhassen B, Shauer A. Wide QRS tachycardia with extreme QRS right-axis deviation. Heart Rhythm 2024:S1547-5271(24)00228-5. [PMID: 38431024 DOI: 10.1016/j.hrthm.2024.02.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 03/05/2024]
Affiliation(s)
- Bernard Belhassen
- Heart Institute, Hadassah Medical Center, Jerusalem, Israel; Tel-Aviv University, Tel Aviv, Israel.
| | - Ayelet Shauer
- Tel-Aviv University, Tel Aviv, Israel; Faculty of Medicine, Hebrew University of Jerusalem, Israel
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Curtis B, Deshmukh A, Larson J, Ghanbari H, Ghannam M, Crawford TC, Latchamsetty R, Pagani FD, Bogun F, Liang JJ. Safety and hemodynamic implications of transseptal access for ventricular tachycardia ablation in patients with left ventricular assist devices. J Interv Card Electrophysiol 2024:10.1007/s10840-024-01768-0. [PMID: 38416348 DOI: 10.1007/s10840-024-01768-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 02/08/2024] [Indexed: 02/29/2024]
Affiliation(s)
- Brett Curtis
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Drive TC 311Q, Ann Arbor, MI, 48109-5853, USA
| | - Amrish Deshmukh
- Division of Cardiovascular Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109-5869, USA
| | - John Larson
- Department of Internal Medicine, University of Michigan, 1500 E Medical Center Drive TC 311Q, Ann Arbor, MI, 48109-5853, USA
| | - Hamid Ghanbari
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA
| | - Michael Ghannam
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA
| | - Thomas C Crawford
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA
| | - Rakesh Latchamsetty
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA
| | - Francis D Pagani
- Department of Cardiovascular Surgery, University of Michigan, Ann Arbor, MI, 48103, USA
| | - Frank Bogun
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA
| | - Jackson J Liang
- Electrophysiology Section, Division of Cardiovascular Medicine, University of Michigan, 1425 E. Ann St. Floor 3 Reception C, Ann Arbor, MI, 48103, USA.
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Hakimzadeh Z, Gilani A, Yousefichaijan P, Sarmadian R. Acute fatal ventricular arrhythmia induced by severe hyperkalemia in a toddler with decompensated methylmalonic acidemia. J Med Case Rep 2024; 18:73. [PMID: 38395924 PMCID: PMC10893669 DOI: 10.1186/s13256-024-04406-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 01/22/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Methylmalonic acidemia is a very rare genetic metabolic disease. Patients with isolated methylmalonic acidemia typically present with acute alterations of consciousness, failure to thrive, anorexia, vomiting, respiratory distress, and muscular hypotonia. Despite the evidence-based management, affected individuals experience significant morbidity and mortality. Hyperkalemia is one of the unusual complications of methylmalonic acidemia. CASE PRESENTATION In this paper, we describe a 4-year-old Persian boy with methylmalonic acidemia who developed life-threatening arrhythmia following severe hyperkalemia and metabolic acidosis. Emergent management of the condition was successfully carried out, and the rhythm changed to normal sinus rhythm by effectively reducing the serum potassium level. We discuss the possible etiology of this lethal condition and describe its management on the basis of the available evidence. CONCLUSION During metabolic decompensation in methylmalonic acidemia, frequent blood gas and electrolyte testing to prescribe and adjust therapy and annual echocardiogram and electrocardiogram screening are essential.
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Affiliation(s)
- Zahra Hakimzadeh
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolfazl Gilani
- Department of Pediatric Surgery, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Roham Sarmadian
- Infectious Disease Research Center, Arak University of Medical Sciences, Arak, Iran.
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Liao J, Ebrahimi R, Ling Z, Meyer C, Martinek M, Sommer P, Futyma P, Di Vece D, Schratter A, Acou WJ, Zhu L, Kiuchi MG, Liu S, Yin Y, Pürerfellner H, Templin C, Chen S. Effect of SGLT-2 inhibitors on arrhythmia events: insight from an updated secondary analysis of > 80,000 patients (the SGLT2i-Arrhythmias and Sudden Cardiac Death). Cardiovasc Diabetol 2024; 23:78. [PMID: 38402177 PMCID: PMC10893620 DOI: 10.1186/s12933-024-02137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 01/16/2024] [Indexed: 02/26/2024] Open
Abstract
OBJECTIVE We aimed to assess the effect of SGLT2i on arrhythmias by conducting a meta-analysis using data from randomized controlled trials(RCTs). BACKGROUND Sodium-glucose co-transporter 2 inhibitors (SGLT2i) have shown cardioprotective effects via multiple mechanisms that may also contribute to decrease arrhythmias risk. METHODS We searched in databases (PubMed, Embase, Cochrane Library, and clinicaltrials.gov) up to April 2023. RCTs comparing SGLT2i with placebo were included. The effects of SGLT2i on atrial fibrillation(AF), atrial flutter(AFL), composite AF/AFL, ventricular fibrillation(VF), ventricular tachycardia(VT), ventricular extrasystoles(VES), sudden cardiac death(SCD) and composite VF/VT/SCD were evaluated. RESULTS 33 placebo-controlled RCTs were included, comprising 88,098 patients (48,585 in SGLT2i vs. 39,513 in placebo). The mean age was 64.9 ± 9.4 years, 63.0% were male. The mean follow-up was 1.4 ± 1.1 years. The pooled-results showed that SGLT2i was associated with a significantly lower risk of AF [risk ratio(RR): 0.88, 95% confidence interval(CI) 0.78-1.00, P = 0.04] and composite AF/AFL (RR: 0.86, 95%CI 0.77-0.96, P = 0.01). This favorable effect appeared to be substantially pronounced in patients with HFrEF, male gender, dapagliflozin, and > 1 year follow-up. For SCD, only in heart failure patients, SGLT2i were found to be associated with a borderline lower risk of SCD (RR: 0.67, P = 0.05). No significant effects of SGLT2i on other ventricular arrhythmic outcomes were found. CONCLUSIONS SGLT2i lowers the risks of AF and AF/AFL, and this favorable effect appeared to be particularly pronounced in patients with HFrEF, male gender, dapagliflozin, and longer follow-up (> 1 year). SGLT2i lowers the risk of SCD only in heart failure patients.
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Affiliation(s)
- Jia Liao
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ramin Ebrahimi
- Heart Clinic Pratteln, Zentrum Für Kardiologie, Pratteln, Switzerland
| | - Zhiyu Ling
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Christian Meyer
- Department of Cardiology, Angiology, Intensive Care, cNEP, Cardiac Neuro- & Electrophysiology Research Consortium, EVK Düsseldorf, Düsseldorf, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Hamburg/Kiel/Lübeck, Hamburg, Germany
- Institute of Neural and Sensory Physiology, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Martin Martinek
- Department for Internal Medicine 2 - Cardiology, Angiology, and Intensive Care, Akademisches Lehrkrankenhaus, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Philipp Sommer
- Klinik Für Elektrophysiologie/Rhythmologie, Herz- Und Diabeteszentrum Nordrhein-Westfalen, Universitätsklinik Der Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Piotr Futyma
- St. Joseph's Heart Rhythm Center, Medical College, University of Rzeszów, Rzeszów, Poland
| | - Davide Di Vece
- University Heart Center, Department of Cardiology, University Hospital Zurich, and University of Zurich, Zurich, Switzerland
| | | | | | - Lin Zhu
- Kardiologie, Frankfurt Rotkreuz Kliniken, Frankfurt am Main, Germany
| | - Márcio G Kiuchi
- School of Medicine-Royal Perth Hospital Unit, University of Western Australia, Perth, Australia
| | - Shaowen Liu
- Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuehui Yin
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Helmut Pürerfellner
- Department for Internal Medicine 2 - Cardiology, Angiology, and Intensive Care, Akademisches Lehrkrankenhaus, Ordensklinikum Linz Elisabethinen, Linz, Austria
| | - Christian Templin
- University Heart Center, Department of Cardiology, University Hospital Zurich, and University of Zurich, Zurich, Switzerland
| | - Shaojie Chen
- Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
- Department for Internal Medicine 2 - Cardiology, Angiology, and Intensive Care, Akademisches Lehrkrankenhaus, Ordensklinikum Linz Elisabethinen, Linz, Austria.
- Cardioangiologisches Centrum Bethanien (CCB), Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus, Akademisches Lehrkrankenhaus der Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany.
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Zucchelli G, Parollo M, Di Cori A, Mazzocchetti L, Segreti L, Grifoni G, Torre M, Sbragi S, De Lucia R, Barletta V, Canu A, Viani S, Bongiorni MG. Feasibility of carbon dioxide insufflation and impact on epicardial approach utilization for ventricular tachycardia ablation in a midvolume referral center. Heart Rhythm 2024:S1547-5271(24)00213-3. [PMID: 38403236 DOI: 10.1016/j.hrthm.2024.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Epicardial access is often crucial for successful ventricular tachycardia (VT) ablation, but it is often burdened by significant procedural risk. Intentional coronary vein exit and intrapericardial CO2 insufflation (EpiCO2) can facilitate subxiphoid pericardial access. OBJECTIVE This prospective study aimed to assess procedural feasibility, safety, and impact of the introduction of intrapericardial CO2 insufflation for epicardial access in a referral center for VT ablation. METHODS All consecutive patients treated with epicardial VT ablation between November 2022 and January 2024 with the EpiCO2 technique at Pisa University Hospital were prospectively enrolled and compared in terms of feasibility, efficiency, and safety with a local retrospective cohort of patients treated with subxiphoid dry puncture between July 2018 and October 2022. RESULTS Twenty-two consecutive patients (90.9% male; mean age, 54.3 years) underwent VT ablation with EpiCO2 during the study period. Epicardial access was achieved in all patients; median time from coronary sinus (CS) cannulation to epicardial access was 33 minutes. Intentional vein exit was successful in all cases, whereas CO2 insufflation was not feasible in 1 patient. There were no major complications and no significant bleeding. Since EpiCO2 introduction, epicardial approach utilization increased from 17.8% to 40% of all VT procedures. Comparison with 20 standard dry approach epicardial ablations showed no significant differences in terms of total procedural duration (322.5 [interquartile range, 296.75-363.75] minutes vs 359 [interquartile range, 323-409] minutes; P = .08). CONCLUSION In our single-center experience, EpiCO2 was feasible and safe and led to significant increase in procedural volume without affecting total procedural time compared with standard dry puncture.
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Affiliation(s)
- Giulio Zucchelli
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy.
| | - Matteo Parollo
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Andrea Di Cori
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Lorenzo Mazzocchetti
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Luca Segreti
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Gino Grifoni
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Marco Torre
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Sara Sbragi
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Raffaele De Lucia
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Valentina Barletta
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Antonio Canu
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Stefano Viani
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy
| | - Maria Grazia Bongiorni
- Second Division of Cardiology, Cardiothoracic and Vascular Department, Pisa University Hospital, Pisa, Italy; Heart Rhythm Clinic, San Rossore Hospital, Pisa, Italy
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Załęska-Kocięcka M, Wojdyńska Z, Kalisz M, Litwiniuk A, Mączewski M, Leszek P, Paterek A. Epicardial fat and ventricular arrhythmias. Heart Rhythm 2024; 21:206-212. [PMID: 37972673 DOI: 10.1016/j.hrthm.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/03/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
The arrhythmogenic role of epicardial adipose tissue (EAT) in atrial arrhythmias is well established, but its effect on ventricular arrhythmias has been significantly less investigated. Since ventricular arrhythmias are thought to cause 75%-80% of cases of sudden cardiac death, this is not a trivial issue. We provide an overview of clinical data as well as experimental and molecular data linking EAT to ventricular arrhythmias, attempting to dissect possible mechanisms and indicate future directions of research and possible clinical implications. However, despite a wealth of data indicating the role of epicardial and intramyocardial fat in the induction and propagation of ventricular arrhythmias, unfortunately there is currently no direct evidence that indeed EAT triggers arrhythmia or can be a target for antiarrhythmic strategies.
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Affiliation(s)
- Marta Załęska-Kocięcka
- Heart Failure and Transplantology Department, Mechanical Circulatory Support and Transplant Department, National Institute of Cardiology, Warsaw, Poland
| | - Zuzanna Wojdyńska
- Heart Failure and Transplantology Department, Mechanical Circulatory Support and Transplant Department, National Institute of Cardiology, Warsaw, Poland
| | - Małgorzata Kalisz
- Department of Clinical Neuroendocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Anna Litwiniuk
- Department of Clinical Neuroendocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Michał Mączewski
- Department of Clinical Physiology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Przemysław Leszek
- Heart Failure and Transplantology Department, Mechanical Circulatory Support and Transplant Department, National Institute of Cardiology, Warsaw, Poland
| | - Aleksandra Paterek
- Department of Clinical Physiology, Centre of Postgraduate Medical Education, Warsaw, Poland.
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Lan Y, Wei L, Pan C, Lin T, Yan Y. A case report of isolated arrhythmogenic left ventricular cardiomyopathy: phenotypes, diagnosis, and treatment. Eur Heart J Case Rep 2024; 8:ytad581. [PMID: 38328600 PMCID: PMC10849070 DOI: 10.1093/ehjcr/ytad581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 11/07/2023] [Accepted: 11/16/2023] [Indexed: 02/09/2024]
Abstract
Background Isolated arrhythmogenic left ventricular cardiomyopathy (IALVC) is a hereditary cardiomyopathy that is characterized by the replacement of left ventricular (LV) cardiomyocytes with fibrous and adipose tissue. Case summary A 55-year-old male patient presented with recurrent chest pain and palpitations characterized by episodes of monomorphic ventricular tachycardia and T-wave inversion. Coronary angiography was conducted to rule out myocardial ischaemia as the cause of chest pain. Echocardiography results revealed ventricular aneurysm formation at the apex of the left ventricle. Structural alterations of the cardiac magnetic resonance were consistent with the diagnosis of arrhythmogenic left ventricular cardiomyopathy with LV alterations without right ventricular involvement. Pathological staining of the lesion area further confirmed the diagnosis of IALVC. The TTN1 c.17617 C>A mutation in arrhythmogenic cardiomyopathy was identified using whole exome sequencing. His symptoms improved by the treatments including implantable cardioverter defibrillator (ICD) implantation, radiofrequency ablation, and ventricular aneurysm resection. Discussion The patient presented with IALVC with apical fibrofatty displacement and underwent surgical management, highlighting the importance of multimodal imaging, gene analysis, and histopathological findings for timely diagnosis, and emphasizing the benefits of life-saving therapy, including ICD implantation, radiofrequency ablation, and ventricular aneurysm resection. These findings contribute to a deeper understanding of the clinical presentation and outcome of IALVC.
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Affiliation(s)
- Yang Lan
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Rd, Shanghai 200032, China
| | - Lai Wei
- Department of Cardiovascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Cuizhen Pan
- Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Tzuchun Lin
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Rd, Shanghai 200032, China
- Department of Cardiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200071, China
| | - Yan Yan
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Rd, Shanghai 200032, China
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Hsieh JC, Gabriels JK, Epstein LM, Beldner S. Ventricular tachycardia due to delayed septal perforation by a left bundle branch area pacing lead. HeartRhythm Case Rep 2024; 10:113-116. [PMID: 38404974 PMCID: PMC10885722 DOI: 10.1016/j.hrcr.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Affiliation(s)
- Ji-Cheng Hsieh
- Department of Cardiology, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York
| | - James K. Gabriels
- Department of Cardiology, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York
| | - Laurence M. Epstein
- Department of Cardiology, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York
| | - Stuart Beldner
- Department of Cardiology, Zucker School of Medicine at Hofstra/Northwell, North Shore University Hospital, Manhasset, New York
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Rademaker R, Kimura Y, de Riva Silva M, Beukers HC, Piers SRD, Wijnmaalen AP, Dekkers OM, Zeppenfeld K. Area-weighted unipolar voltage to predict heart failure outcomes in patients with ischaemic cardiomyopathy and ventricular tachycardia. Europace 2024; 26:euad346. [PMID: 38308809 PMCID: PMC10838146 DOI: 10.1093/europace/euad346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/15/2023] [Indexed: 02/05/2024] Open
Abstract
AIMS Patients with ischaemic cardiomyopathy (ICM) referred for catheter ablation of ventricular tachycardia (VT) are at risk for end-stage heart failure (HF) due to adverse remodelling. Local unipolar voltages (UV) decrease with loss of viable myocardium. A UV parameter reflecting global viable myocardium may predict prognosis. We evaluate if a newly proposed parameter, area-weighted unipolar voltage (awUV), can predict HF-related outcomes [HFO; HF death/left ventricular (LV) assist device/heart transplant] in ICM. METHODS AND RESULTS From endocardial voltage maps of consecutive patients with ICM referred for VT ablation, awUV was calculated by weighted interpolation of local UV. Associations between clinical and mapping parameters and HFO were evaluated and validated in a second cohort. The derivation cohort consisted of 90 patients [age 68 ±8 years; LV ejection fraction (LVEF) 35% interquartile range (IQR) (24-40)] and validation cohort of 60 patients [age 67 ± 9, LVEF 39% IQR (29-45)]. In the derivation cohort, during a median follow-up of 45 months [IQR (34-83)], 36 (43%) patients died and 23 (26%) had HFO. Patients with HFO had lower awUV [4.51 IQR (3.69-5.31) vs. 7.03 IQR (6.08-9.2), P < 0.001]. A reduction in awUV [optimal awUV (5.58) cut-off determined by receiver operating characteristics analysis] was a strong predictor of HFO (3-year HFO survival 97% vs. 57%). The cut-off value was confirmed in the validation cohort (2-year HFO-free survival 96% vs. 60%). CONCLUSION The newly proposed parameter awUV, easily available from routine voltage mapping, may be useful at identifying ICM patients at high risk for HFO.
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Affiliation(s)
- Robert Rademaker
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
| | - Yoshi Kimura
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
| | - Marta de Riva Silva
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
| | - Hans C Beukers
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Sebastiaan R D Piers
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
| | - Adrianus P Wijnmaalen
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
| | - Olaf M Dekkers
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Katja Zeppenfeld
- Department of Cardiology (C-05-P), Leiden University Medical Center, P.O. Box 9600, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
- Willem Einthoven Center of Arrhythmia Research and Management, Leiden, The Netherlands
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Ip JE, Stambler BS, Bharucha DB, Green A. Plain language summary of the safety and effectiveness of etripamil for atrioventricular-nodal-dependent supra ventricular tachycardia: the RAPID study. Future Cardiol 2024; 20:35-44. [PMID: 38385329 DOI: 10.2217/fca-2023-0156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024] Open
Abstract
WHAT IS THIS SUMMARY ABOUT? This is a plain language summary of a clinical research study called RAPID. The study looked at the potential for how safe and effective etripamil was at stopping an episode of rapid heartbeats in people with atrioventricularnodal-dependent supraventricular tachycardia (AV-node-dependent SVT). An episode is used to describe the period of time when a person experiences an abnormally very fast heartbeat. This was done by comparing an investigational drug called etripamil with a placebo, each administered via a rapidly acting nasal spray. AV-node-dependent SVT affects the rhythm of the heart, causing it to suddenly beat rapidly. The condition often requires medical treatment to help return the heart to its normal, healthy heartbeat pattern and speed, called 'sinus rhythm'. Researchers are looking at ways of improving the management of supraventricular tachycardias (SVT) by reducing the need for patients to attend an urgent care clinic, emergency ward or hospital for treatment. In the RAPID study, participants used a nasal spray containing either 70 mg etripamil or a placebo solution when they experienced an episode of SVT. The researchers wanted to know how long it took for each participant's rapid heartbeat to return to sinus rhythm after administering the etripamil or placebo nasal spray. Participants in the study were considered successfully treated if their heartbeats returned to sinus rhythm for at least 30 seconds within 30 minutes of using the nasal spray. Although 30 seconds may seem brief, it's medically important because it shows that a person's heartbeat has been temporarily stabilized and returned to normal functioning. WHAT WERE THE RESULTS? Out of 99 people who used etripamil during an SVT episode, 63 participants (64%) experienced a return to sinus rhythm for at least 30 seconds within 30 minutes after using the nasal spray. In contrast, 26 out of 85 participants (31%) who used the placebo nasal spray experienced a return to sinus rhythm for at least 30 seconds within 30 minutes after use. Furthermore, the average time taken for the return to sinus rhythm was 17 minutes for the etripamil group which was 3-times faster than the placebo group at 53 minutes. Also, in the study no serious side effects occurred that were related to etripamil. WHAT DO THE RESULTS OF THE STUDY MEAN? The RAPID study supports the potential that etripamil may be safe and well tolerated by participants as a treatment for episodes of rapid heartbeat in people with AV-node-dependent SVT. The results also showed a significant improvement in symptoms following treatment with etripamil.
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Affiliation(s)
- James E Ip
- Clinical Medicine, Weill Cornell Medical Center, New York, NY, USA
| | - Bruce S Stambler
- Cardiac Arrhythmia Research & Education, Piedmont Heart Institute, Atlanta, GA, USA
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Zado ES, Garg L, Tschabrunn C, Santangeli P, Hyman M, Kumareswaran R, Arkles J, Marchlinski FE. Risk of atrial arrhythmias in patients with ventricular tachycardia in arrhythmogenic right ventricular cardiomyopathy. Heart Rhythm 2024; 21:133-140. [PMID: 37956774 DOI: 10.1016/j.hrthm.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 10/23/2023] [Accepted: 11/07/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND In arrhythmogenic right ventricular cardiomyopathy (ARVC), risk of atrial arrhythmias (AAs) persists after ventricular tachycardia (VT) ablation. OBJECTIVE The purpose of this study was to determine the type, prevalence, outcome, and risk correlates of AA in ARVC in patients undergoing VT ablation. METHODS Prospectively collected procedural and clinical data on ARVC patients undergoing VT ablation were analyzed. Risk score for typical atrial flutter was determined from univariate logistic regression analysis. RESULTS Of 119 consecutive patients with ARVC and VT ablation, 40 (34%) had AA: atrial fibrillation (AF) in 31, typical isthmus-dependent atrial flutter (AFL) in 27, and atrial tachycardia/atypical flutter (AT) in 10. Seventeen patients (43%) with AA experienced inappropriate defibrillator therapy, with 15 patients experiencing shocks. Ablation was performed for typical AFL in 21 (53%), AT in 5 (13%), and pulmonary vein isolation for AF in 4 (10%) patients and prevented AA in 78% and all AFL during additional mean follow-up of 65 months. Risk score for typical flutter included age >40 years (1 point), ≥moderate right ventricular dysfunction (2 points), ≥moderate tricuspid regurgitation (2 points), ≥moderate right atrial dilation (2 points), and right ventricular volume >250 cc (3points), with score >4 identifying 50% prevalence of typical flutter. CONCLUSION AAs are common in patients with ARVC and VT, can result in inappropriate implantable cardioverter-defibrillator shocks, and typically are controlled with atrial ablation. A risk score can be used to identify patients at high risk for typical AFL who may be considered for isthmus ablation at the time of VT ablation.
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Affiliation(s)
- Erica S Zado
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Lohit Garg
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Cory Tschabrunn
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Pasquale Santangeli
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Matthew Hyman
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ramanan Kumareswaran
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jeffrey Arkles
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Francis E Marchlinski
- Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
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Kawada S, Tanimoto M, Onishi N, Takaishi A, Morita H. Successful use of lidocaine hydrochloride in the management of ventricular arrhythmias in a case of pilsicainide intoxication. HeartRhythm Case Rep 2024; 10:119-123. [PMID: 38404968 PMCID: PMC10885686 DOI: 10.1016/j.hrcr.2023.10.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Affiliation(s)
- Satoshi Kawada
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masafumi Tanimoto
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Nobuhiko Onishi
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Atsushi Takaishi
- Department of Cardiovascular Medicine, Mitoyo General Hospital, Kagawa, Japan
| | - Hiroshi Morita
- Department of Cardiovascular Therapeutics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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