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Small AJ, Dai M, Halpern DG, Tan RB. Updates in Arrhythmia Management in Adult Congenital Heart Disease. J Clin Med 2024; 13:4314. [PMID: 39124581 PMCID: PMC11312906 DOI: 10.3390/jcm13154314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/11/2024] [Accepted: 07/18/2024] [Indexed: 08/12/2024] Open
Abstract
Arrhythmias are highly prevalent in adults with congenital heart disease. For the clinician caring for this population, an understanding of pathophysiology, diagnosis, and management of arrhythmia is essential. Herein we review the latest updates in diagnostics and treatment of tachyarrhythmias and bradyarrhythmias, all in the context of congenital anatomy, hemodynamics, and standard invasive palliations for congenital heart disease.
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Affiliation(s)
- Adam J. Small
- Medicine NYU Grossman School of Medicine, 530 First Ave, HCC 5, New York, NY 10016, USA; (M.D.); (D.G.H.); (R.B.T.)
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Murphy SP, Lew J, Yucel E, Singh J, Mela T. Cardiac implantable electronic device-induced tricuspid regurgitation: Implications and management. J Cardiovasc Electrophysiol 2024; 35:1017-1025. [PMID: 38501386 DOI: 10.1111/jce.16251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/01/2024] [Accepted: 03/04/2024] [Indexed: 03/20/2024]
Abstract
Tricuspid regurgitation (TR) secondary to cardiac implantable electronic devices (CIEDs) has been well documented and is associated with worse cardiovascular outcomes. A variety of mechanisms have been proposed including lead-induced mechanical disruption of the tricuspid valvular or subvalvular apparatus and pacing-induced electrical dyssynchrony. Patient characteristics such as age, sex, baseline atrial fibrillation, and pre-existing TR have not been consistent predictors of CIED-induced TR. While two-dimensional echocardiography is helpful in assessing the severity of TR, three-dimensional echocardiography has significantly improved accuracy in identifying the etiology of TR and whether lead position contributes to TR. Three-dimensional echocardiography may therefore play a future role in optimizing lead positioning during implant to reduce the risk of CIED-induced TR. Optimal lead management strategies in addition to percutaneous interventions and surgery in alleviating TR are very important.
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Affiliation(s)
- Sean P Murphy
- Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jeanney Lew
- Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- The Demoulas Cardiac Arrhythmia Service, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Evin Yucel
- Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Cardiac Ultrasound Laboratory, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jagmeet Singh
- Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- The Demoulas Cardiac Arrhythmia Service, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Theofanie Mela
- Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- The Demoulas Cardiac Arrhythmia Service, Massachusetts General Hospital, Boston, Massachusetts, USA
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Weinreb SJ, Ampah SB, Okunowo O, Griffis H, Vetter VL. Longitudinal echocardiographic parameters before and after pacemaker placement in congenital complete heart block. Heart Rhythm 2024; 21:454-461. [PMID: 37981292 DOI: 10.1016/j.hrthm.2023.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Congenital complete heart block (CCHB) is seen in 1:15,000-1:20,000 live births, with risk of left ventricular (LV) dysfunction or dilated cardiomyopathy in 7%-23% of subjects. OBJECTIVE The purpose of this study was to investigate serial changes in LV size and systolic function in paced CCHB subjects to examine the effect of time from pacemaker on echocardiographic parameters. METHODS Single-center retrospective cohort analysis of paced CCHB subjects was performed. Echocardiographic data were collected before and after pacemaker placement. Linear mixed effect regression of left ventricular end-diastolic dimension (LVEDD) z-score, left ventricular shortening fraction (LVSF), and left ventricular ejection fraction (LVEF) was performed, with slopes compared before and after pacemaker placement. RESULTS Of 114 CCHB subjects, 52 had echocardiographic data before and after pacemaker placement. Median age at CCHB diagnosis was 0.6 [interquartile range 0.0-3.5] years; age at pacemaker placement 3.4 [0.5-9.0] years; and pacing duration 10.8 [5.2-13.7] years. Estimated LVEDD z-score was 1.4 at pacemaker placement and decreased -0.08 per year (95% confidence interval [CI] -0.12 to -0.04; P = .002) to 0.2 (95% CI -0.3 to +0.3) 15 years postplacement. Estimated LVSF decreased -1.1% per year (95% CI -1.7% to -0.6%; P <.001) from 6 months prepacemaker placement to 34% (95% CI 32%-37%) 4 years postplacement. There was no significant change in LVSF between 4 and 15 years postplacement. Estimated LVEF did not change significantly after pacemaker placement, with estimated LVEF 59% (95% CI 55%-62%) 15 years postplacement. CONCLUSION In 52 paced CCHB subjects, estimated LVEDD z-score decreased significantly after pacemaker placement, and estimated LVSF and LVEF remained within normal limits at 15 years postpacemaker placement.
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Affiliation(s)
- Scott J Weinreb
- Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
| | - Steve B Ampah
- Data Science and Biostatistics Unit, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Oluwatimilehin Okunowo
- Department of Computational and Quantitative Medicine, Division of Biostatistics, Beckman Research Institute of City of Hope, Duarte, California
| | - Heather Griffis
- Data Science and Biostatistics Unit, Department of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Victoria L Vetter
- Division of Cardiology, Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
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Silvetti MS, Colonna D, Gabbarini F, Porcedda G, Rimini A, D’Onofrio A, Leoni L. New Guidelines of Pediatric Cardiac Implantable Electronic Devices: What Is Changing in Clinical Practice? J Cardiovasc Dev Dis 2024; 11:99. [PMID: 38667717 PMCID: PMC11050217 DOI: 10.3390/jcdd11040099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/15/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
Guidelines are important tools to guide the diagnosis and treatment of patients to improve the decision-making process of health professionals. They are periodically updated according to new evidence. Four new Guidelines in 2021, 2022 and 2023 referred to pediatric pacing and defibrillation. There are some relevant changes in permanent pacing. In patients with atrioventricular block, the heart rate limit in which pacemaker implantation is recommended was decreased to reduce too-early device implantation. However, it was underlined that the heart rate criterion is not absolute, as signs or symptoms of hemodynamically not tolerated bradycardia may even occur at higher rates. In sinus node dysfunction, symptomatic bradycardia is the most relevant recommendation for pacing. Physiological pacing is increasingly used and recommended when the amount of ventricular pacing is presumed to be high. New recommendations suggest that loop recorders may guide the management of inherited arrhythmia syndromes and may be useful for severe but not frequent palpitations. Regarding defibrillator implantation, the main changes are in primary prevention recommendations. In hypertrophic cardiomyopathy, pediatric risk calculators have been included in the Guidelines. In dilated cardiomyopathy, due to the rarity of sudden cardiac death in pediatric age, low ejection fraction criteria were demoted to class II. In long QT syndrome, new criteria included severely prolonged QTc with different limits according to genotype, and some specific mutations. In arrhythmogenic cardiomyopathy, hemodynamically tolerated ventricular tachycardia and arrhythmic syncope were downgraded to class II recommendation. In conclusion, these new Guidelines aim to assess all aspects of cardiac implantable electronic devices and improve treatment strategies.
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Affiliation(s)
- Massimo Stefano Silvetti
- Paediatric Cardiology and Cardiac Arrhythmia/Syncope Unit, Bambino Gesù Children’s Hospital IRCCS, European Reference Network for Rare and Low Prevalence Complex Disease of the Heart (ERN GUARD-Heart), 00100 Rome, Italy
| | - Diego Colonna
- Adult Congenital Heart Disease Unit, Monaldi Hospital, 80131 Naples, Italy;
| | - Fulvio Gabbarini
- Paediatric Cardiology and Adult Congenital Heart Disease Unit, Regina Margherita Hospital, 10126 Torino, Italy;
| | - Giulio Porcedda
- Paediatric Cardiology Unit, A. Meyer Children’s Hospital, 50139 Florence, Italy;
| | - Alessandro Rimini
- Paediatric Cardiology Unit, G. Gaslini Children’s Hospital IRCCS, 16147 Genoa, Italy;
| | - Antonio D’Onofrio
- Departmental Unit of Electrophysiology, Evaluation and Treatment of Arrhythmia, Monaldi Hospital, 80131 Naples, Italy;
| | - Loira Leoni
- Cardiology Unit, Department of Cardio-Thoracic-Vascular Science and Public Health, Padua University Hospital (ERN GUARD-Heart), 35121 Padua, Italy;
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Karpawich PP, Chubb H. Indications for Cardiac Resynchronization Therapy in Patients with Congenital Heart Disease. Card Electrophysiol Clin 2023; 15:433-445. [PMID: 37865517 DOI: 10.1016/j.ccep.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2023]
Abstract
Heart failure in patients with congenital heart disease (CHD) stems from unique causes compared with the elderly. Patients with CHD face structural abnormalities and malformations present from birth, leading to altered cardiac function and potential complications. In contrast, elderly individuals primarily experience heart failure due to age-related changes and underlying cardiovascular conditions. Cardiac resynchronization therapy (CRT) can benefit patients with CHD, although it presents numerous challenges. The complexities of CHD anatomy and limited access to appropriate venous sites for lead placement make CRT implantation demanding.
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Affiliation(s)
- Peter P Karpawich
- Department of Pediatrics, Central Michigan University College of Medicine, Cardiac Electrophysiology, The Children's Hospital of Michigan, Detroit, MI, USA.
| | - Henry Chubb
- Stanford University School of Medicine, Stanford Medicine Children's Health, Palo Alto, CA, USA; Pediatric Heart Center, 725 Welch Road, Suite 120, MC 5912, Palo Alto, CA 94304, USA
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Chung MK, Patton KK, Lau CP, Dal Forno ARJ, Al-Khatib SM, Arora V, Birgersdotter-Green UM, Cha YM, Chung EH, Cronin EM, Curtis AB, Cygankiewicz I, Dandamudi G, Dubin AM, Ensch DP, Glotzer TV, Gold MR, Goldberger ZD, Gopinathannair R, Gorodeski EZ, Gutierrez A, Guzman JC, Huang W, Imrey PB, Indik JH, Karim S, Karpawich PP, Khaykin Y, Kiehl EL, Kron J, Kutyifa V, Link MS, Marine JE, Mullens W, Park SJ, Parkash R, Patete MF, Pathak RK, Perona CA, Rickard J, Schoenfeld MH, Seow SC, Shen WK, Shoda M, Singh JP, Slotwiner DJ, Sridhar ARM, Srivatsa UN, Stecker EC, Tanawuttiwat T, Tang WHW, Tapias CA, Tracy CM, Upadhyay GA, Varma N, Vernooy K, Vijayaraman P, Worsnick SA, Zareba W, Zeitler EP. 2023 HRS/APHRS/LAHRS guideline on cardiac physiologic pacing for the avoidance and mitigation of heart failure. Heart Rhythm 2023; 20:e17-e91. [PMID: 37283271 PMCID: PMC11062890 DOI: 10.1016/j.hrthm.2023.03.1538] [Citation(s) in RCA: 133] [Impact Index Per Article: 133.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 06/08/2023]
Abstract
Cardiac physiologic pacing (CPP), encompassing cardiac resynchronization therapy (CRT) and conduction system pacing (CSP), has emerged as a pacing therapy strategy that may mitigate or prevent the development of heart failure (HF) in patients with ventricular dyssynchrony or pacing-induced cardiomyopathy. This clinical practice guideline is intended to provide guidance on indications for CRT for HF therapy and CPP in patients with pacemaker indications or HF, patient selection, pre-procedure evaluation and preparation, implant procedure management, follow-up evaluation and optimization of CPP response, and use in pediatric populations. Gaps in knowledge, pointing to new directions for future research, are also identified.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Eugene H Chung
- University of Michigan Medical School, Ann Arbor, Michigan
| | | | | | | | | | - Anne M Dubin
- Stanford University, Pediatric Cardiology, Palo Alto, California
| | | | - Taya V Glotzer
- Hackensack Meridian School of Medicine, Hackensack, New Jersey
| | - Michael R Gold
- Medical University of South Carolina, Charleston, South Carolina
| | - Zachary D Goldberger
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
| | | | - Eiran Z Gorodeski
- University Hospitals and Case Western Reserve University School of Medicine, Cleveland, Ohio
| | | | | | - Weijian Huang
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peter B Imrey
- Cleveland Clinic, Cleveland, Ohio; Case Western Reserve University, Cleveland, Ohio
| | - Julia H Indik
- University of Arizona, Sarver Heart Center, Tucson, Arizona
| | - Saima Karim
- MetroHealth Medical Center, Case Western Reserve University, Cleveland, Ohio
| | - Peter P Karpawich
- The Children's Hospital of Michigan, Central Michigan University, Detroit, Michigan
| | - Yaariv Khaykin
- Southlake Regional Health Center, Newmarket, Ontario, Canada
| | | | - Jordana Kron
- Virginia Commonwealth University, Richmond, Virginia
| | | | - Mark S Link
- University of Texas Southwestern Medical Center, Dallas, Texas
| | - Joseph E Marine
- Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Wilfried Mullens
- Ziekenhuis Oost-Limburg Genk, Belgium and Hasselt University, Hasselt, Belgium
| | - Seung-Jung Park
- Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Ratika Parkash
- QEII Health Sciences Center, Halifax, Nova Scotia, Canada
| | | | - Rajeev Kumar Pathak
- Australian National University, Canberra Hospital, Garran, Australian Capital Territory, Australia
| | | | | | | | | | | | - Morio Shoda
- Tokyo Women's Medical University, Tokyo, Japan
| | - Jagmeet P Singh
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - David J Slotwiner
- Weill Cornell Medicine Population Health Sciences, New York, New York
| | | | | | | | | | | | | | - Cynthia M Tracy
- George Washington University, Washington, District of Columbia
| | | | | | - Kevin Vernooy
- Cardiovascular Research Institute Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
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Abstract
Congenital complete heart block (CCHB) defines atrioventricular conduction abnormalities diagnosed in utero or within the first 27 days of life. Maternal autoimmune disease and congenital heart defects are most commonly responsible. Recent genetic discoveries have highlighted our understanding of the underlying mechanism. Hydroxychloroquine shows promise in preventing autoimmune CCHB. Patients may develop symptomatic bradycardia and cardiomyopathy. The presence of these and other specific findings warrants placement of a permanent pacemaker to relieve symptoms and prevent catastrophic events. The mechanisms, natural history, evaluation, and treatment of patients with or at risk for CCHB are reviewed.
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Affiliation(s)
- Leonard Steinberg
- Pediatric Cardiology, Children's Heart Center, Ascension St. Vincent, 8333 Naab Rd, Ste 320, Indianapolis, IN 46260, USA.
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Christensen AP, Singh V, England AJ, Khiani R, Herrey AS. Management and complications of complete heart block in pregnancy. Obstet Med 2023; 16:120-122. [PMID: 37441659 PMCID: PMC10334037 DOI: 10.1177/1753495x211033489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 06/07/2021] [Indexed: 04/13/2024] Open
Abstract
Although rare, increasing numbers of women with pacemakers are becoming pregnant. We describe the complications of a woman with arrhythmia and a pacemaker for complete heart block experienced before, during, between and after her pregnancies. We illustrate the benefits of multidisciplinary care, good communication and regular assessment in a stable, but complex woman.
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Affiliation(s)
- AP Christensen
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | - V Singh
- Department of Obstetrics & Gynaecology, Royal Free Hospital NHS Foundation Trust, London, UK
| | - AJ England
- Department of Anaesthesia, Royal Free Hospital NHS Foundation Trust, London, UK
| | - R Khiani
- Department of Cardiology, Royal Free Hospital NHS Foundation Trust, London, UK
| | - AS Herrey
- Department of Cardiology, Royal Free Hospital NHS Foundation Trust, London, UK
- Department of Cardiology, Bartshealth NHS Trust, London, UK
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Kerley RN, O’Dowling C, Campos F, Murphy RD, Walsh KA, Fahy GJ. The therapeutic benefit of upgrade to cardiac resynchronization therapy in patients with pacing-induced cardiomyopathy. Heart Rhythm O2 2023; 4:225-231. [PMID: 37124556 PMCID: PMC10134389 DOI: 10.1016/j.hroo.2023.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Background Pacing-induced cardiomyopathy (PICM) is an important cause of heart failure in patients with a right ventricular pacing burden. Recent evidence suggests that an upgrade to cardiac resynchronization therapy (CRT) may confer benefit in PICM. Objective To assess the extent and identify predictors of improvement following upgrade to CRT in patients with PICM. Methods We retrospectively analyzed 43 patients undergoing CRT upgrade for PICM over the 10-year period of 2011 to 2021 at our center. All patients with PICM who underwent device upgrade from a dual- or single-chamber ventricular pacemaker to CRT were included. PICM was defined as a decrease of ≥10% in left ventricular ejection fraction (LVEF), resulting in an LVEF <50% among patients with ≥20% Right ventricular pacing burden without an alternative cause for cardiomyopathy. Results LVEF significantly improved from 28.7% preupgrade to 44.3% post-CRT upgrade (P < .01). Of 37 patients with severe LV dysfunction, 34 (91.9%) improved to an LVEF >35% and 13 (35.1%) improved to an LVEF >50%. The LV end-diastolic diameter decreased from 5.9 cm preupgrade to 5.4 cm postupgrade (P < .01). Using linear regression, angiotensin-converting enzyme inhibitor or angiotensin receptor blocker use was associated with significant LVEF improvement (+7.21%, P = .05). We observed a low rate of complications, and 1 in 4 CRT upgrades required venoplasty (n = 10 of 43, 23.3%). Conclusion We provide further evidence for the benefit of CRT upgrade in the management of patients with PICM.
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Affiliation(s)
- Robert N. Kerley
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
| | - Claire O’Dowling
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
| | - Filipa Campos
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
| | - Robbie D. Murphy
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
| | - Katie A. Walsh
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
| | - Gerard J. Fahy
- Department of Cardiology, Cork University Hospital, Wilton, Cork, Ireland
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Santos H, Figueiredo M, Paula SB, Santos M, Osório P, Portugal G, Valente B, Lousinha A, Silva Cunha P, Oliveira M. Apical or Septal Right Ventricular Location in Patients Receiving Defibrillation Leads: A Systematic Review and Meta-Analysis. Cardiol Rev 2023; Publish Ahead of Print:00045415-990000000-00080. [PMID: 36883833 DOI: 10.1097/crd.0000000000000527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
This study reviews the published data comparing the efficacy and safety of apical and septal right ventricle defibrillator lead positioning at 1-year follow-up. Systemic research on Medline (PubMed), ClinicalTrials.gov, and Embase was performed using the keywords "septal defibrillation," "apical defibrillation," "site defibrillation," and "defibrillation lead placement," including implantable cardioverter-defibrillator and cardiac resynchronization therapy devices. Comparisons between apical and septal position were performed regarding R-wave amplitude, pacing threshold at a pulse width of 0.5 ms, pacing and shock lead impedance, suboptimal lead performance, left ventricular ejection fraction (LVEF), left ventricular end-diastolic diameter, readmissions due to heart failure and mortality rates. A total of 5 studies comprising 1438 patients were included in the analysis. Mean age was 64.5 years, 76.9% were male, with a median LVEF of 27.8%, ischemic etiology in 51.1%, and a mean follow-up period of 26.5 months. The apical lead placement was performed in 743 patients and septal lead placement in 690 patients. Comparing the 2 placement sites, no significant differences were found regarding R-wave amplitude, lead impedance, suboptimal lead performance, LVEF, left ventricular end-diastolic diameter, and mortality rate at 1-year follow-up. Pacing threshold values favored septal defibrillator lead placement (P = 0.003), as well as shock impedance (P = 0.009) and readmissions due to heart failure (P = 0.02). Among patients receiving a defibrillator lead, only pacing threshold, shock lead impedance, and readmission due to heart failure showed results favoring septal lead placement. Therefore, generally, the right ventricle lead placement does not appear to be of major importance.
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Affiliation(s)
- Helder Santos
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
- Department of Cardiology, Centro Hospitalar Barreiro- Montijo, Barreiro, Portugal
| | - Margarida Figueiredo
- Department of Cardiology, Centro Hospitalar Barreiro- Montijo, Barreiro, Portugal
| | - Sofia B Paula
- Department of Cardiology, Centro Hospitalar Barreiro- Montijo, Barreiro, Portugal
| | - Mariana Santos
- Department of Cardiology, Centro Hospitalar Barreiro- Montijo, Barreiro, Portugal
| | - Paulo Osório
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
| | - Guilherme Portugal
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
| | - Bruno Valente
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
| | - Ana Lousinha
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
| | - Pedro Silva Cunha
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
| | - Mário Oliveira
- From the Department of Cardiology, Centro Hospitalar de Lisboa Central - Hospital Santa Marta, Lisbon, Portugal
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Ventricular Functional Analysis in Congenital Complete Heart Block Using Speckle Tracking: Left Ventricular Epicardial Compared to Right Ventricular Septal Pacing. Pediatr Cardiol 2023; 44:1160-1167. [PMID: 36625944 DOI: 10.1007/s00246-022-03093-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/28/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND Chronic right ventricular (RV) apical pacing in patients with congenital complete atrioventricular block (CCAVB) is associated with left ventricle (LV) dyssynchrony and dysfunction. Hence, alternative pacing sites are advocated. The aim of this study was to compare LV function using STE in selected patients with LV epicardial pacing (LVEp) vs. RV transvenous pacing (RVSp). METHODS This was a single-center, retrospective study in patients with CCAVB who underwent permanent pacemaker implant at age ≤ 18 years. Age- and gender-matched patients with a normal heart anatomy and function served as the control group. LV function was comprehensively assessed by conventional 2D Echocardiography and speckle-tracking echocardiography (STE). RESULTS We included 24 patients in the pacemaker group [27.6% male, mean age of 17.1 at last follow-up, follow-up duration of 8.7 years, RVSp (n = 9; 62.5%)] compared to 48 matched healthy controls. Shortening fraction (SF) and ejection fraction (EF) were normal and similar between cases and controls. However, STE detected abnormal LV function in the pacemaker group compared to controls. The former demonstrated lower/abnormal, Peak Longitudinal Strain myocardial (PLS Myo) [- 12.0 ± 3.3 vs. - 18.1 ± 1.9, p < 0.001] and Peak Longitudinal Strain endocardial (PLS endo) [- 16.1 ± 4.1 vs. 1.7 ± 1.7, p < 0.001]. STE parameters of LV function were significantly more abnormal in LVEp vs. RVSp subgroup as demonstrated by lower values for PLS Myo (- 10.1 ± 3.2 vs. - 13.1 ± 2.9, p = 0.03) and PLS Endo (- 13.8 ± 4.4 vs. - 17.5 ± 3.3, p = 0.03). CONCLUSION STE was more sensitive in detecting subtle differences in LV function relative to standard conventional 2D echocardiography (SF and EF) in selected patients with CCAVB and a permanent pacemaker. Furthermore, STE demonstrated that transvenous RV septal pacing was associated with better LV systolic function preservation than LV epicardial pacing for comparable post-implant intervals.
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12
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Datta G, Dastidar DG, Chakraborty H. Strain echocardiography in predicting LV dysfunction in RV apical pacing. Indian Heart J 2023; 75:77-81. [PMID: 36603797 PMCID: PMC9986733 DOI: 10.1016/j.ihj.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/04/2023] Open
Abstract
Right ventricular (RV) pacing is associated with a reduction in left ventricular (LV) systolic function, thought to be mediated by pacing-induced ventricular dyssynchrony. The prevalence of heart failure after RV pacing is reported to range from 31±3%. We studied 60 subjects with high-grade atrioventricular block and Complete Heart Block (CHB) scheduled to undergo right ventricular apical pacing. 2D echocardiography was done at baseline, 1 month and 12 months. Pacing-induced cardiomyopathy was defined as a reduction in LVEF to <45%. Strain was evaluated off-line from digitally stored images using all advanced software package (cardiac wall motion quantification (CMQ); Toshiba Medical Systems). Longitudinal strain for individual myocardial segments was measured from the apical four-chamber, two-chamber and long axis views (16 segment AHA/ASE model). None had LV dysfunction at baseline based on 2D and strain echo imaging. Subsequently 18 patients were detected to develop low GLS score (less than -14.5) at 1 month. On subsequent follow up at 1 year, all 18 patients developed LV dysfunction on 2D Echocardiography. Thus Strain imaging with GLS score helped in early detection of LV dysfunction in RV apical pacing subjects. Pacing-induced cardiomyopathy had significant association with high grade AV block with pacemaker dependency. It had no significant associations with other comorbidities like diabetes, hypertension, ischemic heart disease or with the type of medication intake. However there was a statistically significant association with heart failure.
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Affiliation(s)
- Goutam Datta
- Department of Cardiology, Burdwan Medical College, Burdwan, India.
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Fazelifar AF, Taghavyan NJ, Moeeni M, Baharestani B, Shahandashti FJ, Haghjoo M, Hoseini S, Kamali F, Madadi S, Yoonesi AA, Koolaji S. A survival analysis of bipolar steroid-eluting and unipolar nonsteroid-eluting epicardial leads. J Cardiovasc Electrophysiol 2023; 34:209-218. [PMID: 36251326 DOI: 10.1111/jce.15709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 09/20/2022] [Accepted: 10/12/2022] [Indexed: 01/18/2023]
Abstract
INTRODUCTION Epicardial pacemakers are known as an alternative for endocardial pacemakers in some cases such as heart block, and complex congenital heart diseases. Considering recent advances and improvement of epicardial lead subtypes, it is essential to investigate the long-term function of them. In this study, we aimed to assess the sensing and pacing characteristics, and survival of bipolar steroid-eluting and unipolar nonsteroid-eluting epicardial pacemakers. METHODS We conducted an entirely concentrated search on the documents of all patients who had undergone epicardial lead implantation in the Shaheed Rajaie Cardiovascular, Medical & Research Center during 2015-2018. Implant, and follow-up data were extracted. Kaplan-Meier analysis and Weibull regression hazards model were applied for the survival analysis. RESULTS Eighty-nine leads were implanted for 77 patients. Of the total leads, 52.81%, 53.93%, and 47.19% were implanted in children (under 18-year-old), females, and patients with congenital heart diseases, respectively. Bipolar steroid-eluting leads comprised 33.71% of 89 leads. The pacing threshold of unipolar nonsteroid-eluting leads that were implanted on the left ventricle and right atrium increased significantly during the follow-up to greater records than bipolar steroid-eluting leads. Survival analysis also revealed that bipolar steroid-eluting leads are significantly better in 48-month survival (Weibull hazard ratio [HR]: 0.13 (95% confidence interval [CI]: 0.02-0.99), p = .049). Age, ventricular location of the lead, and acute pacing characteristics were not associated with survival. CONCLUSIONS Bipolar steroid-eluting epicardial leads have an acceptable survival compared with unipolar nonsteroid-eluting, without a significant difference regarding patients age. Therefore, they could be an excellent alternative for endocardial ones.
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Affiliation(s)
- Amir Farjam Fazelifar
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Nina Jalily Taghavyan
- Department of Cardiology, Rajaie Cardiovascular Medical and Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Moeeni
- Department of Cardiology, Seyed ol Shohada Hospital, Urmia University of Medical Sciences, West Azarbaijan Province, Iran
| | - Bahador Baharestani
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farshad Jalili Shahandashti
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Haghjoo
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Hoseini
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Kamali
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Shabnam Madadi
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Asghar Yoonesi
- Department of Cardiology, Rajaie Cardiovascular Medical and Research Center, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sogol Koolaji
- Department of Pacemaker and Electrophysiology Research, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Epidemiology, Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Sagiv E, Hill AC, Silka MJ, Wood JC, Bar-Cohen Y. Assessment of echocardiographic parameters in children with permanent ventricular pacing. PROGRESS IN PEDIATRIC CARDIOLOGY 2021. [DOI: 10.1016/j.ppedcard.2021.101457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Shah MJ, Silka MJ, Avari Silva JN, Balaji S, Beach CM, Benjamin MN, Berul CI, Cannon B, Cecchin F, Cohen MI, Dalal AS, Dechert BE, Foster A, Gebauer R, Gonzalez Corcia MC, Kannankeril PJ, Karpawich PP, Kim JJ, Krishna MR, Kubuš P, LaPage MJ, Mah DY, Malloy-Walton L, Miyazaki A, Motonaga KS, Niu MC, Olen M, Paul T, Rosenthal E, Saarel EV, Silvetti MS, Stephenson EA, Tan RB, Triedman J, Von Bergen NH, Wackel PL. 2021 PACES expert consensus statement on the indications and management of cardiovascular implantable electronic devices in pediatric patients. Indian Pacing Electrophysiol J 2021; 21:367-393. [PMID: 34333141 PMCID: PMC8577100 DOI: 10.1016/j.ipej.2021.07.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
In view of the increasing complexity of both cardiovascular implantable electronic devices (CIEDs) and patients in the current era, practice guidelines, by necessity, have become increasingly specific. This document is an expert consensus statement that has been developed to update and further delineate indications and management of CIEDs in pediatric patients, defined as ≤21 years of age, and is intended to focus primarily on the indications for CIEDs in the setting of specific disease categories. The document also highlights variations between previously published adult and pediatric CIED recommendations and provides rationale for underlying important differences. The document addresses some of the deterrents to CIED access in low- and middle-income countries and strategies to circumvent them. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by class of recommendation and level of evidence. Several questions addressed in this document either do not lend themselves to clinical trials or are rare disease entities, and in these instances recommendations are based on consensus expert opinion. Furthermore, specific recommendations, even when supported by substantial data, do not replace the need for clinical judgment and patient-specific decision-making. The recommendations were opened for public comment to Pediatric and Congenital Electrophysiology Society (PACES) members and underwent external review by the scientific and clinical document committee of the Heart Rhythm Society (HRS), the science advisory and coordinating committee of the American Heart Association (AHA), the American College of Cardiology (ACC), and the Association for European Paediatric and Congenital Cardiology (AEPC). The document received endorsement by all the collaborators and the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). This document is expected to provide support for clinicians and patients to allow for appropriate CIED use, appropriate CIED management, and appropriate CIED follow-up in pediatric patients.
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Affiliation(s)
- Maully J Shah
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
| | - Michael J Silka
- University of Southern California Keck School of Medicine, Los Angeles, CA, USA.
| | | | | | | | - Monica N Benjamin
- Hospital de Pediatría Juan P. Garrahan, Hospital El Cruce, Hospital Británico de Buenos Aires, Instituto Cardiovascular ICBA, Buenos Aires, Argentina
| | | | | | - Frank Cecchin
- New York University Grossman School of Medicine, New York, NY, USA
| | | | - Aarti S Dalal
- Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Anne Foster
- Advocate Children's Heart Institute, Chicago, IL, USA
| | - Roman Gebauer
- Heart Centre Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | - Peter P Karpawich
- University Pediatricians, Children's Hospital of Michigan, Detroit, MI, USA
| | | | | | - Peter Kubuš
- Children's Heart Center, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | | | | | - Aya Miyazaki
- Shizuoka General Hospital and Mt. Fuji Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Mary C Niu
- University of Utah Health Sciences Center, Salt Lake City, UT, USA
| | | | - Thomas Paul
- Georg-August-University Medical Center, Göttingen, Germany
| | - Eric Rosenthal
- Evelina London Children's Hospital and St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom
| | | | | | | | - Reina B Tan
- New York University Langone Health, New York, NY, USA
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16
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Silka MJ, Shah MJ, Avari Silva JN, Balaji S, Beach CM, Benjamin MN, Berul CI, Cannon B, Cecchin F, Cohen MI, Dalal AS, Dechert BE, Foster A, Gebauer R, Gonzalez Corcia MC, Kannankeril PJ, Karpawich PP, Kim JJ, Krishna MR, Kubuš P, LaPage MJ, Mah DY, Malloy-Walton L, Miyazaki A, Motonaga KS, Niu MC, Olen M, Paul T, Rosenthal E, Saarel EV, Silvetti MS, Stephenson EA, Tan RB, Triedman J, Von Bergen NH, Wackel PL. 2021 PACES expert consensus statement on the indications and management of cardiovascular implantable electronic devices in pediatric patients: Executive summary. Indian Pacing Electrophysiol J 2021; 21:349-366. [PMID: 34333142 PMCID: PMC8577082 DOI: 10.1016/j.ipej.2021.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Guidelines for the implantation of cardiac implantable electronic devices (CIEDs) have evolved since publication of the initial ACC/AHA pacemaker guidelines in 1984 [1]. CIEDs have evolved to include novel forms of cardiac pacing, the development of implantable cardioverter defibrillators (ICDs) and the introduction of devices for long term monitoring of heart rhythm and other physiologic parameters. In view of the increasing complexity of both devices and patients, practice guidelines, by necessity, have become increasingly specific. In 2018, the ACC/AHA/HRS published Guidelines on the Evaluation and Management of Patients with Bradycardia and Cardiac Conduction Delay [2], which were specific recommendations for patients >18 years of age. This age-specific threshold was established in view of the differing indications for CIEDs in young patients as well as size-specific technology factors. Therefore, the following document was developed to update and further delineate indications for the use and management of CIEDs in pediatric patients, defined as ≤21 years of age, with recognition that there is often overlap in the care of patents between 18 and 21 years of age. This document is an abbreviated expert consensus statement (ECS) intended to focus primarily on the indications for CIEDs in the setting of specific disease/diagnostic categories. This document will also provide guidance regarding the management of lead systems and follow-up evaluation for pediatric patients with CIEDs. The recommendations are presented in an abbreviated modular format, with each section including the complete table of recommendations along with a brief synopsis of supportive text and select references to provide some context for the recommendations. This document is not intended to provide an exhaustive discussion of the basis for each of the recommendations, which are further addressed in the comprehensive PACES-CIED document [3], with further data easily accessible in electronic searches or textbooks.
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Affiliation(s)
- Michael J Silka
- University of Southern California Keck School of Medicine, Los Angeles, California, USA.
| | - Maully J Shah
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
| | | | | | | | - Monica N Benjamin
- Hospital de Pediatría Juan P. Garrahan, Hospital El Cruce, Hospital Británico de Buenos Aires, Instituto Cardiovascular ICBA, Buenos Aires, Argentina
| | | | | | - Frank Cecchin
- New York Univeristy Grossman School of Medicine, New York, NY, USA
| | | | - Aarti S Dalal
- Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Anne Foster
- Advocate Children's Heart Institute, Chicago, IL, USA
| | - Roman Gebauer
- Heart Centre Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | - Peter P Karpawich
- University Pediatricians, Children's Hospital of Michigan, Detroit, MI, USA
| | | | | | - Peter Kubuš
- Children's Heart Center, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | | | | | - Aya Miyazaki
- Shizuoka General Hospital and Mt. Fuji Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Mary C Niu
- University of Utah Health Sciences Center, Salt Lake City, UT, USA
| | | | - Thomas Paul
- Georg-August-University Medical Center, Göttingen, Germany
| | - Eric Rosenthal
- Evelina London Children's Hospital and St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK
| | | | | | | | - Reina B Tan
- New York University Langone Health, New York, NY, USA
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17
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Shah MJ, Silka MJ, Silva JNA, Balaji S, Beach CM, Benjamin MN, Berul CI, Cannon B, Cecchin F, Cohen MI, Dalal AS, Dechert BE, Foster A, Gebauer R, Gonzalez Corcia MC, Kannankeril PJ, Karpawich PP, Kim JJ, Krishna MR, Kubuš P, LaPage MJ, Mah DY, Malloy-Walton L, Miyazaki A, Motonaga KS, Niu MC, Olen M, Paul T, Rosenthal E, Saarel EV, Silvetti MS, Stephenson EA, Tan RB, Triedman J, Bergen NHV, Wackel PL. 2021 PACES Expert Consensus Statement on the Indications and Management of Cardiovascular Implantable Electronic Devices in Pediatric Patients: Developed in collaboration with and endorsed by the Heart Rhythm Society (HRS), the American College of Cardiology (ACC), the American Heart Association (AHA), and the Association for European Paediatric and Congenital Cardiology (AEPC) Endorsed by the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). JACC Clin Electrophysiol 2021; 7:1437-1472. [PMID: 34794667 DOI: 10.1016/j.jacep.2021.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In view of the increasing complexity of both cardiovascular implantable electronic devices (CIEDs) and patients in the current era, practice guidelines, by necessity, have become increasingly specific. This document is an expert consensus statement that has been developed to update and further delineate indications and management of CIEDs in pediatric patients, defined as ≤21 years of age, and is intended to focus primarily on the indications for CIEDs in the setting of specific disease categories. The document also highlights variations between previously published adult and pediatric CIED recommendations and provides rationale for underlying important differences. The document addresses some of the deterrents to CIED access in low- and middle-income countries and strategies to circumvent them. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by class of recommendation and level of evidence. Several questions addressed in this document either do not lend themselves to clinical trials or are rare disease entities, and in these instances recommendations are based on consensus expert opinion. Furthermore, specific recommendations, even when supported by substantial data, do not replace the need for clinical judgment and patient-specific decision-making. The recommendations were opened for public comment to Pediatric and Congenital Electrophysiology Society (PACES) members and underwent external review by the scientific and clinical document committee of the Heart Rhythm Society (HRS), the science advisory and coordinating committee of the American Heart Association (AHA), the American College of Cardiology (ACC), and the Association for European Paediatric and Congenital Cardiology (AEPC). The document received endorsement by all the collaborators and the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). This document is expected to provide support for clinicians and patients to allow for appropriate CIED use, appropriate CIED management, and appropriate CIED follow-up in pediatric patients.
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Affiliation(s)
- Maully J Shah
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
| | - Michael J Silka
- University of Southern California Keck School of Medicine, Los Angeles, California, USA.
| | | | | | | | - Monica N Benjamin
- Hospital de Pediatría Juan P. Garrahan, Hospital El Cruce, Hospital Británico de Buenos Aires, Instituto Cardiovascular ICBA, Buenos Aires, Argentina
| | | | | | - Frank Cecchin
- New York University Grossman School of Medicine, New York, New York, USA
| | | | - Aarti S Dalal
- Washington University in St. Louis, St. Louis, Missouri, USA
| | | | - Anne Foster
- Advocate Children's Heart Institute, Chicago, Illinois, USA
| | - Roman Gebauer
- Heart Centre Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | - Peter P Karpawich
- University Pediatricians, Children's Hospital of Michigan, Detroit, Michigan, USA
| | | | | | - Peter Kubuš
- Children's Heart Center, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | | | | | - Aya Miyazaki
- Shizuoka General Hospital and Mt. Fuji Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Mary C Niu
- University of Utah Health Sciences Center, Salt Lake City, Utah, USA
| | - Melissa Olen
- Nicklaus Children's Hospital, Miami, Florida, USA
| | - Thomas Paul
- Georg-August-University Medical Center, Göttingen, Germany
| | - Eric Rosenthal
- Evelina London Children's Hospital and St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom
| | | | | | | | - Reina B Tan
- New York University Langone Health, New York, New York, USA
| | | | - Nicholas H Von Bergen
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
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18
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Silka MJ, Shah MJ, Silva JNA, Balaji S, Beach CM, Benjamin MN, Berul CI, Cannon B, Cecchin F, Cohen MI, Dalal AS, Dechert BE, Foster A, Gebauer R, Gonzalez Corcia MC, Kannankeril PJ, Karpawich PP, Kim JJ, Krishna MR, Kubuš P, LaPage MJ, Mah DY, Malloy-Walton L, Miyazaki A, Motonaga KS, Niu MC, Olen M, Paul T, Rosenthal E, Saarel EV, Silvetti MS, Stephenson EA, Tan RB, Triedman J, Von Bergen NH, Wackel PL. 2021 PACES Expert Consensus Statement on the Indications and Management of Cardiovascular Implantable Electronic Devices in Pediatric Patients: Executive Summary. Heart Rhythm 2021; 18:1925-1950. [PMID: 34363987 DOI: 10.1016/j.hrthm.2021.07.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Michael J Silka
- University of Southern California Keck School of Medicine, Los Angeles, California.
| | - Maully J Shah
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
| | | | | | | | - Monica N Benjamin
- Hospital de Pediatría Juan P. Garrahan, Hospital El Cruce, Hospital Británico de Buenos Aires, Instituto Cardiovascular ICBA, Buenos Aires, Argentina
| | | | | | - Frank Cecchin
- New York University Grossman School of Medicine, New York, New York
| | | | - Aarti S Dalal
- Washington University in St. Louis, St. Louis, Missouri
| | | | - Anne Foster
- Advocate Children's Heart Institute, Chicago, Illinois
| | - Roman Gebauer
- Heart Centre Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | - Peter P Karpawich
- University Pediatricians, Children's Hospital of Michigan, Detroit, Michigan
| | | | | | - Peter Kubuš
- Children's Heart Center, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | | | | | - Aya Miyazaki
- Shizuoka General Hospital and Mt. Fuji Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Mary C Niu
- University of Utah Health Sciences Center, Salt Lake City, Utah
| | | | - Thomas Paul
- Georg-August-University Medical Center, Göttingen, Germany
| | - Eric Rosenthal
- Evelina London Children's Hospital and St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom
| | | | | | | | - Reina B Tan
- New York University Langone Health, New York, New York
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2021 PACES expert consensus statement on the indications and management of cardiovascular implantable electronic devices in pediatric patients. Cardiol Young 2021; 31:1738-1769. [PMID: 34338183 DOI: 10.1017/s1047951121003413] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In view of the increasing complexity of both cardiovascular implantable electronic devices (CIEDs) and patients in the current era, practice guidelines, by necessity, have become increasingly specific. This document is an expert consensus statement that has been developed to update and further delineate indications and management of CIEDs in pediatric patients, defined as ≤21 years of age, and is intended to focus primarily on the indications for CIEDs in the setting of specific disease categories. The document also highlights variations between previously published adult and pediatric CIED recommendations and provides rationale for underlying important differences. The document addresses some of the deterrents to CIED access in low- and middle-income countries and strategies to circumvent them. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by class of recommendation and level of evidence. Several questions addressed in this document either do not lend themselves to clinical trials or are rare disease entities, and in these instances recommendations are based on consensus expert opinion. Furthermore, specific recommendations, even when supported by substantial data, do not replace the need for clinical judgment and patient-specific decision-making. The recommendations were opened for public comment to Pediatric and Congenital Electrophysiology Society (PACES) members and underwent external review by the scientific and clinical document committee of the Heart Rhythm Society (HRS), the science advisory and coordinating committee of the American Heart Association (AHA), the American College of Cardiology (ACC), and the Association for European Paediatric and Congenital Cardiology (AEPC). The document received endorsement by all the collaborators and the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). This document is expected to provide support for clinicians and patients to allow for appropriate CIED use, appropriate CIED management, and appropriate CIED follow-up in pediatric patients.
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2021 PACES expert consensus statement on the indications and management of cardiovascular implantable electronic devices in pediatric patients: executive summary. Cardiol Young 2021; 31:1717-1737. [PMID: 34796795 DOI: 10.1017/s1047951121003395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
Congenital complete heart block (CCHB) defines atrioventricular conduction abnormalities diagnosed in utero or within the first 27 days of life. Maternal autoimmune disease and congenital heart defects are most commonly responsible. Recent genetic discoveries have highlighted our understanding of the underlying mechanism. Hydroxychloroquine shows promise in preventing autoimmune CCHB. Patients may develop symptomatic bradycardia and cardiomyopathy. The presence of these and other specific findings warrants placement of a permanent pacemaker to relieve symptoms and prevent catastrophic events. The mechanisms, natural history, evaluation, and treatment of patients with or at risk for CCHB are reviewed.
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Rangavajla G, Mulukutla S, Thoma F, Kancharla K, Bhonsale A, Estes NAM, Jain SK, Saba S. Ventricular pacing and myocardial function in patient with congenital heart block. J Cardiovasc Electrophysiol 2021; 32:2684-2689. [PMID: 34409682 DOI: 10.1111/jce.15207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/12/2021] [Accepted: 07/16/2021] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Pacing-induced cardiomyopathy (PICM) is a potential complication of chronic right ventricular (RV) pacing, but its characterization in adult patients is often complicated by pre-existing cardiomyopathy. This study investigated the incidence of PICM in patients with congenital heart block (cHB) who have conduction disease from birth without confounding pre-existing cardiac conditions. METHODS AND RESULTS This retrospective cohort analysis included 42 patients with cHB and baseline left ventricular ejection fraction (LVEF) ≥50%. Kaplan-Meier analysis was used to assess freedom from cardiomyopathy (defined as LVEF <50%) between paced and nonpaced patients. Patients were 26 ± 3 years old at first presentation, 64% were women and baseline LVEF was 60.0 ± 0.2%. Median follow-up from birth was 35 (interquartile range [IQR]: 20-42) years with a median of 6.7 years (IQR: 3.6-9.2) at our institution. Thirty-two patients received pacing at mean age 21 ± 3 years. Patients receiving a pacemaker (PM) were significantly more likely to develop a cardiomyopathy (p = .021) and no patient developed a cardiomyopathy in the absence of a PM. Four patients who developed a new cardiomyopathy were upgraded to biventricular pacing, leading to stabilization or improvement of LVEF. CONCLUSION In a relatively young and healthy cHB cohort, RV pacing is associated with a higher risk of developing a cardiomyopathy. These data confirm the deleterious effects of RV pacing on myocardial function in patients without pre-existing structural cardiac disease and has clinical implications to the management of patients with cHB.
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Affiliation(s)
- Gautam Rangavajla
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Suresh Mulukutla
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Floyd Thoma
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Krishna Kancharla
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Aditya Bhonsale
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - N A Mark Estes
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Sandeep K Jain
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Samir Saba
- Department of Medicine, Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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Batra AS, Balaji S. Ventricular pacing and myocardial function in patients with congenital heart block: Is it time to consider de novo biventricular pacing? J Cardiovasc Electrophysiol 2021; 32:2690-2691. [PMID: 34405482 DOI: 10.1111/jce.15212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Anjan S Batra
- Division of Cardiology, Department of Pediatrics, Irvine and Children's Hospital of Orange County, University of California, Orange, California, USA
| | - Seshadri Balaji
- Division of Cardiology, Department of Pediatrics, Oregon Health & Science University, Portland, Oregon, USA
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Kim DY, Lkhagvasuren P, Seo J, Cho I, Hong GR, Ha JW, Shim CY. Left Ventricular Global Longitudinal Strain Is Associated With Cardiovascular Outcomes in Patients Who Underwent Permanent Pacemaker Implantation. Front Cardiovasc Med 2021; 8:705778. [PMID: 34395565 PMCID: PMC8363313 DOI: 10.3389/fcvm.2021.705778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Patients who underwent permanent pacemaker (PM) implantation have a potential risk of left ventricular (LV) systolic dysfunction. However, assessment of LV ejection fraction (LVEF) shows a limited role in identifying subclinical LV systolic dysfunction and predicting cardiovascular (CV) outcomes. Methods: We reviewed 1,103 patients who underwent permanent PM implantation between January 2007 and December 2017. After excluding patients who did not undergo echocardiograms before or after PM implantation and those with LV ejection fraction (LVEF) <50%, significant valve dysfunction, and history of cardiac surgery before PM implantation, 300 (67 ± 13 years, 119 men) were finally analyzed. LV mechanical function was assessed with LV global longitudinal strain (LV-GLS) using 2-dimensional speckle-tracking echocardiography. CV outcomes were defined as a composite of CV death and hospitalization for heart failure. Results: At 44 ± 28 months after post-PM echocardiogram, 23 patients (7.7%) had experienced CV outcomes. Patients with CV outcomes were older and had more comorbidities and a lower baseline |LV-GLS| than those without CV outcomes. LV mechanical function worsened after PM implantation in patients with CV outcomes. The cut-off value of 11.2% in |LV-GLS| on post-PM echocardiogram had a better predictive value for CV outcomes (AUC; 0.784 vs. 0.647, p = 0.012). CV outcome in patients with |LV-GLS| <11.2% was worse than that in those with |LV-GLS| ≥ 11.2% (log-rank p < 0.001). Multivariate Cox model revealed that reduced |LV-GLS| was independently associated with CV outcomes. Conclusions: Pacing deteriorates LV mechanical function. Impaired LV-GLS is associated with poor CV outcomes in patients who underwent PM implantation.
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Affiliation(s)
- Dae-Young Kim
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Purevjargal Lkhagvasuren
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jiwon Seo
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Iksung Cho
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Geu-Ru Hong
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong-Won Ha
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Chi Young Shim
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
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Shah MJ, Silka MJ, Silva JA, Balaji S, Beach C, Benjamin M, Berul C, Cannon B, Cecchin F, Cohen M, Dalal A, Dechert B, Foster A, Gebauer R, Gonzalez Corcia MC, Kannankeril P, Karpawich P, Kim J, Krishna MR, Kubuš P, Malloy-Walton L, LaPage M, Mah D, Miyazaki A, Motonaga K, Niu M, Olen M, Paul T, Rosenthal E, Saarel E, Silvetti MS, Stephenson E, Tan R, Triedman J, Von Bergen N, Wackel P. 2021 PACES Expert Consensus Statement on the Indications and Management of Cardiovascular Implantable Electronic Devices in Pediatric Patients. Heart Rhythm 2021; 18:1888-1924. [PMID: 34363988 DOI: 10.1016/j.hrthm.2021.07.038] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 07/15/2021] [Indexed: 01/10/2023]
Abstract
In view of the increasing complexity of both cardiovascular implantable electronic devices (CIEDs) and patients in the current era, practice guidelines, by necessity, have become increasingly specific. This document is an expert consensus statement that has been developed to update and further delineate indications and management of CIEDs in pediatric patients, defined as ≤21 years of age, and is intended to focus primarily on the indications for CIEDs in the setting of specific disease categories. The document also highlights variations between previously published adult and pediatric CIED recommendations and provides rationale for underlying important differences. The document addresses some of the deterrents to CIED access in low- and middle-income countries and strategies to circumvent them. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by class of recommendation and level of evidence. Several questions addressed in this document either do not lend themselves to clinical trials or are rare disease entities, and in these instances recommendations are based on consenus expert opinion. Furthermore, specific recommendations, even when supported by substantial data, do not replace the need for clinical judgment and patient-specific decision-making. The recommendations were opened for public comment to Pediatric and Congenital Electrophysiology Society (PACES) members and underwent external review by the scientific and clinical document committee of the Heart Rhythm Society (HRS), the science advisory and coordinating committee of the American Heart Association (AHA), the American College of Cardiology, (ACC) and the Association for European Paediatric and Congenital Cardiology (AEPC). The document received endorsement by all the collaborators and the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). This document is expected to provide support for clinicians and patients to allow for appropriate CIED use, appropriate CIED management, and appropriate follow-up in pediatric patients.
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Affiliation(s)
- Maully J Shah
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
| | - Michael J Silka
- University of Southern California Keck School of Medicine, Los Angeles, California.
| | | | | | - Cheyenne Beach
- Yale University School of Medicine, New Haven, Connecticut
| | - Monica Benjamin
- Hospital de Pediatría Juan P. Garrahan, Hospital El Cruce, Hospital Británico de Buenos Aires, Instituto Cardiovascular ICBA, Buenos Aires, Argentina
| | | | | | - Frank Cecchin
- New York Univeristy Grossman School of Medicine, New York, New York
| | | | - Aarti Dalal
- Washington University in St. Louis, St. Louis, Missouri
| | | | - Anne Foster
- Advocate Children's Heart Institute, Chicago, Illinois
| | - Roman Gebauer
- Heart Centre Leipzig, University of Leipzig, Leipzig, Germany
| | | | | | - Peter Karpawich
- University Pediatricians, Children's Hospital of Michigan, Detroit, Michigan
| | | | | | - Peter Kubuš
- Children's Heart Center, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | | | - Doug Mah
- Harvard Medical School, Boston, Massachussetts
| | - Aya Miyazaki
- Shizuoka General Hospital and Mt. Fuji Shizuoka Children's Hospital, Shizuoka, Japan
| | | | - Mary Niu
- University of Utah Health Sciences Center, Salt Lake City, Utah
| | | | - Thomas Paul
- Georg-August-University Medical Center, Göttingen, Germany
| | - Eric Rosenthal
- Evelina London Children's Hospital and St Thomas' Hospital, Guy's & St Thomas' NHS Foundation Trust, London, UK
| | | | | | | | - Reina Tan
- New York University Langone Health, New York, New York
| | - John Triedman
- University of Missouri-Kansas City School of Medicine, Kansas City, Missouri
| | - Nicholas Von Bergen
- University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
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Gupta H, Showkat HI, Aslam N, Tandon R, Wander GS, Gupta S, Anwar S, Sohil MM. Chronology of cardiac dysfunction after permanent pacemaker implantation: an observational 2 year prospective study in North India. INTERNATIONAL JOURNAL OF ARRHYTHMIA 2021. [DOI: 10.1186/s42444-021-00040-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Abstract
Background
The purpose of this study is to evaluate cardiac functions using transthoracic echocardiography, change in lead parameters and electrocardiogram (ECG) morphology in patients undergoing permanent pacemaker implantation over a follow-up period of 6 months.
Methods
This is a prospective study in patients undergoing permanent pacemaker implantation in a tertiary care hospital. Patients undergoing permanent pacemaker implantation were enrolled for up to one year and Echocardiographic parameters (by 2 blind operators) and ECG parameters were recorded at admission (within 24 h), before discharge (within 7 days of pacemaker implantation), after 1 month (± 7 days) and after 6 months (± 7 days) of follow-up.
Results
A total of 96 patients (60.4% males and 39.6% female, mean age 66.65 years) were implanted with permanent pacemaker. The mean QRS duration was 133.18 ms and increased significantly to 146.03 ms by 6 months despite septal lead placement in majority (92%) of patients. The mean baseline ejection fraction of 51.47 decreased significantly to 47.83 by 6 months. Diastolic parameters like left atrial volume index, early to late diastolic transmitral flow velocity (E/A) and early diastolic mitral annular tissue velocity (E/e′) showed a significant increase (> 5%) from baseline by the end of first week. By the end of first month, systolic dysfunction of RV sets in with significant (> 5%) change from baseline in parameters like Right ventricle myocardial performance index, transannular plane systolic excursion and right ventricle systolic excursion velocity (RVS′).
Conclusion
We have observed that pacemaker recipients with baseline reduced left ventricle (LV) systolic functions perform significantly worse compared to those with baseline normal cardiac functions and had a higher rate of deterioration of LV function. RV dysfunction is the first abnormality that occurs, by 1 week followed by LV dysfunction which starts by 1 month and the diastolic dysfunctions precede the systolic dysfunction. QRS duration also showed a gradual increase despite septal lead placement in majority (92%) and lead parameters showed no significant change over 6 months.
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27
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Soman P, Jain SK. Image-guided device therapy: An opportunity for personalized medicine. J Nucl Cardiol 2021; 28:1162-1164. [PMID: 32901417 DOI: 10.1007/s12350-020-02327-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Prem Soman
- Division of Cardiology and The Heart and Vascular Institute, University of Pittsburgh Medical Center, A-429 Scaife Hall, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
| | - Sandeep K Jain
- Division of Cardiology and The Heart and Vascular Institute, University of Pittsburgh Medical Center, A-429 Scaife Hall, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
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Lu W, Lin J, Dai Y, Chen K, Zhang S. The therapeutic effects of upgrade to cardiac resynchronization therapy in pacing-induced cardiomyopathy or chronic right ventricular pacing patients: a meta-analysis. Heart Fail Rev 2021; 27:507-516. [PMID: 33638772 DOI: 10.1007/s10741-021-10091-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/18/2021] [Indexed: 11/30/2022]
Abstract
Pacing-induced cardiomyopathy (PICM) or heart failure accompanied with chronic right ventricular pacing (CRVP-HF) has no established treatments. We aimed to carry out a meta-analysis of published studies about the therapeutic effects of the upgrade to cardiac resynchronization therapy (CRT) in patients of PICM/CRVP-HF. The PUBMED, EMBASE, MEDLINE, OVID databases, and Cochrane Library were systemically searched for relevant publications. Data about the improvements of left ventricular ejection fraction (LVEF), NYHA functional class (NYHA-FC), and the CRT response rate was extracted and synthesized. Mean difference (MD), odds ratio, and standard mean difference (SMD) with 95% confidence interval (CI) were calculated as the effect size by both fixed and random effect models. We included sixteen studies (four about PICM and twelve about CRVP-HF). The total sample size of PICM/CRVP-HF patients was 924. Upgrade to CRT improved the LVEF by 10.87% (95%CI, 8.90 to 12.84%) and reduce the NYHA-FC by around one class (MD, -1.25; 95%CI, -1.43 to -1.06) in PICM/CRVP-HF patients overall. Upgrade to CRT seemed to improve LVEF no less than de-novo CRT (SMD 0.24; 95%CI 0.05 to 0.43; P < 0.05). This meta-analysis suggested that upgrade CRT could improve the cardiac function in PICM/CRVP-HF patients. This strategy may be considered in these patients but require more evidence about the efficacy and procedure-related complications from prospective studies or randomized controlled trials.
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Affiliation(s)
- Wenzhao Lu
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Jinxuan Lin
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Yan Dai
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
| | - Keping Chen
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China.
| | - Shu Zhang
- State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 167, Beilishi Road, Xicheng District, Beijing, 100037, China
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Czosek RJ, Gao Z, Anderson JB, Knilans TK, Ollberding NJ, Spar DS. Progressive QRS Duration and Ventricular Dysfunction in Pediatric Patients with Chronic Ventricular Pacing. Pediatr Cardiol 2021; 42:451-459. [PMID: 33247765 DOI: 10.1007/s00246-020-02504-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022]
Abstract
Pacemakers are a mainstay of therapy for patients with congenital and acquired heart block, but ventricular pacing is related to ventricular dysfunction. We sought to evaluate patient and device characteristics associated with ventricular dysfunction in pediatric patients with chronic ventricular pacing. This was a retrospective cohort of pediatric patients with heart block and chronic ventricular pacing. Patient, ECG, and device characteristics were analyzed to determine factors associated with ventricular dysfunction. Longitudinal ECG and echocardiogram parameters were obtained to track changes in QRS and systemic ventricular systolic function over time. In total, 82 patients were included (median age at implant 0.81 years). Over a follow-up time of 6.1 years, 18% developed ventricular dysfunction. Patients with dysfunction had greater current QRS duration (p = 0.002) compared to those with preserved function with a similar time from device implantation. There was no difference between lead location or age at device implantation. QRS duration increased with time from implant and the resultant ΔQRS was associated with ventricular dysfunction (p = 0.01). QRS duration >162 ms was associated with a 5.8 (2-9)-fold increased risk for dysfunction. Transvenous leads were associated with longer QRS duration with no difference compared to epicardial leads in development of ventricular dysfunction. This study demonstrated that the absolute paced QRS duration and Δpaced QRS were association with long-term ventricular dysfunction independent of how long a given patient was paced. Patients in high-risk categories may benefit from close echocardiographic monitoring. Whether permissive junctional rhythm or His bundle/biventricular pacing decreases the rate of dysfunction needs further study.
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Affiliation(s)
- Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnett Avenue, Cincinnati, OH, 45229, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Zhiqian Gao
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnett Avenue, Cincinnati, OH, 45229, USA
| | - Jeffrey B Anderson
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnett Avenue, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Timothy K Knilans
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnett Avenue, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Nicholas J Ollberding
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - David S Spar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, 3333 Burnett Avenue, Cincinnati, OH, 45229, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Joyce J, O'Leary ET, Mah DY, Harrild DM, Rhodes J. Cardiac resynchronization therapy improves the ventricular function of patients with Fontan physiology. Am Heart J 2020; 230:82-92. [PMID: 33017579 DOI: 10.1016/j.ahj.2020.09.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 09/27/2020] [Indexed: 11/16/2022]
Abstract
Past studies have not detected consistent improvement in ventricular function (VFxn) following initiation of cardiac resynchronization therapy (CRT) in Fontan patients. However, these studies used qualitative assessments of VFxn and/or quantitative assessments of VFxn that rely upon anatomic and/or geometric assumptions that may not be valid in patients with single ventricles. To address this, we used quantitative indices of global VFxn (dP/dtic and the Tei index) that are not encumbered by the limitations associated with the indices used in previous studies of CRT in Fontan patients. METHODS Patients with Fontan physiology who had received CRT therapy from 2004 to 2019 were included in the study. They were compared to a concurrent group of Fontan patients who had received standard dual-chamber pacemakers (DCPMs). RESULTS VFxn was assessed at 3 time points: prior to, shortly after, and late after initiation of pacemaker therapy. Prior to initiation of pacemaker therapy, VFxn of the CRT patients tended to be worse than that of the DCPM patients. For both groups, VFxn appeared to be stable or slightly improved shortly after initiation of pacemaker therapy. In the CRT group, VFxn improved significantly between early and late follow-up. In contrast, VFxn in DCPM patients tended to decline during this period. Changes in VFxn correlated with concurrent changes in New York Heart Association classification. CONCLUSIONS Quantitative assessments of VFxn using indices not confounded by complex cardiac anatomy, segmental wall motions abnormalities, or inappropriate geometric assumptions revealed that CRT in Fontan patients is associated with preservation or improvement VFxn compared to standard DCPM. Changes in VFxn correlate with concurrent changes in New York Heart Association classification.
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Affiliation(s)
- Jeremiah Joyce
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA
| | - Edward T O'Leary
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA
| | - Douglas Y Mah
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA
| | - David M Harrild
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA
| | - Jonathan Rhodes
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, 300 Longwood Ave, Boston, MA.
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Dai C, Guo B, Han L, Sang C, Dong J, Ma C. Dyssynchrony Induced by Ventricular Preexcitation: A Risk Factor for the Development of Dilated Cardiomyopathy. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2020. [DOI: 10.15212/cvia.2019.0575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: Significant left ventricular dysfunction may arise in right-sided accessory pathways with ventricular preexcitation in the absence of recurrent or incessant tachycardia. This has just been realized and not enough attention has been paid to it.Methods: In
the last 7 years, we identified 12 consecutive children with a diagnosis of ventricular preexcitation‐induced dilated cardiomyopathy. This report describes the clinical and echocardiographic characteristics of the patients before and after ablation.Results: Dyssynchronous
ventricular contraction was observed by M-mode echocardiography and two-dimensional strain analysis in all patients. The basal and middle segments of the interventricular septum became thin and moved similarly to an aneurysm, with typical bulging during the end of systole. The locations of
the accessory pathways were the right-sided septum (n=5) and the free wall (n=7). Left ventricular synchrony was obtained shortly after ablation. The left ventricular function recovered to normal and the left ventricular end-diastolic diameter decreased gradually during follow-up.Conclusions:
A causal relationship between ventricular preexcitation and the development of dilated cardiomyopathy is supported by the complete recovery of left ventricular function and reversed left ventricular remodeling after the loss of ventricular preexcitation. Preexcitation-related dyssynchrony
was thought to be the crucial mechanism. Ventricular preexcitation‐induced dilated cardiomyopathy is an indication for ablation with a good prognosis.
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Affiliation(s)
- Chencheng Dai
- Department of Pediatric Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
| | - Baojing Guo
- Department of Pediatric Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
| | - Ling Han
- Department of Pediatric Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
| | - Caihua Sang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
| | - Jianzeng Dong
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
| | - Changsheng Ma
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2 Anzhen Road, 100029 Beijing, China
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Mond HG. Electrocardiographic interpretation of pacemaker algorithms enabling minimal ventricular pacing. Heart Rhythm 2020; 17:1784-1792. [PMID: 32413512 DOI: 10.1016/j.hrthm.2020.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/23/2020] [Accepted: 05/05/2020] [Indexed: 11/26/2022]
Abstract
Cardiac pacing from the apex of the right ventricle has been shown to result in left ventricular dysfunction, atrial fibrillation, and increased mortality. To counter these effects, one of the strategies developed is avoidance of ventricular pacing when not necessary, using programmable algorithms to minimize ventricular pacing. Seven algorithms are available from 5 manufacturers. Four of the manufacturers have mode conversion algorithms that pace AAI(R) but, in the presence of failed atrioventricular (AV) conduction, demonstrate algorithm-offset and convert to DDD(R) with ventricular pacing. Three manufacturers do not have mode conversion but rather AV extension to encourage AV conduction. Each of these algorithms has a unique design and, when ventricular pacing is present, will regularly schedule conduction testing to encourage AV conduction and hence algorithm-onset. All of these algorithms seem to violate the rule of AV conduction by allowing the AV delay for sensed ventricular events to be longer than for ventricular paced events. The result is frequently bizarre electrocardiographic (ECG) appearances that often are unique to the company's algorithm but also suggest pacemaker malfunction. This review highlights and illustrates the features of these algorithms as they appear on ECG, and discusses other situations that result in unintended ventricular pacing.
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Affiliation(s)
- Harry G Mond
- Department of Cardiology, The Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia; CardioScan Pty Ltd, Camberwell, Victoria, Australia.
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33
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Right Ventricular Pacing After Ventricular Septal Defect Closure Is Associated With Development of Cardiac Dysfunction. JACC Clin Electrophysiol 2020; 6:348-350. [PMID: 32192687 DOI: 10.1016/j.jacep.2020.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/06/2020] [Accepted: 01/09/2020] [Indexed: 11/20/2022]
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El-Shabrawi M, Lotfy W, Hegazy R, Abdelaziz O, Sobhy R, Abdelmohsen G, Ibrahim H, Dohain AM. Evolution of ventricular function in children with permanent right ventricular pacing after tetralogy of Fallot repair: A midterm follow-up. J Card Surg 2020; 35:831-839. [PMID: 32092198 DOI: 10.1111/jocs.14477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE We aim to evaluate the midterm effect of chronic apical right ventricular (RV) pacing on right and left ventricular (LV) function using different modalities of echocardiography including conventional echocardiography, tissue Doppler imaging and two-dimension speckle tracking echocardiography. METHODS This case-control study enrolled 49 patients divided into two groups: a paced group and a nonpaced group. The paced group included 23 patients that underwent tetralogy of Fallot (TOF) repair and required permanent pacemaker insertion for postoperative complete heart block. The nonpaced group included 26 patients that had TOF repair at the same period. RESULTS The median age for the paced and nonpaced groups was 6 and 8 years, respectively (P = .169). The follow-up duration after TOF surgical repair was 4 years for the paced patients and 5 years for nonpaced patients (P = .411). In the nonpaced group, the QRS duration increased and LV global longitudinal strain (GLS) decreased significantly with increasing duration after TOF repair, P value was .006 and .042, respectively. In the paced group, tricuspid annular systolic plane excursion (TAPSE) was significantly correlated with age (r = .578; P = .004) and duration following TOF correction (r = .724; P < .001). CONCLUSION Chronic RV apical pacing in children after TOF repair was associated with better clinical status, preservation of RV systolic function, and prevention of progressive QRS prolongation. RV pacing was not associated with progressive deterioration of LV systolic function with increasing the time interval following TOF repair. Therefore, RV pacing can be beneficial in corrected TOF patients presenting with RV failure.
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Affiliation(s)
- Mortada El-Shabrawi
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Wael Lotfy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ranya Hegazy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Osama Abdelaziz
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rodina Sobhy
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Gaser Abdelmohsen
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hossam Ibrahim
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed M Dohain
- Department of Pediatrics, Faculty of Medicine, Cairo University, Cairo, Egypt
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Kovanda J, Ložek M, Ono S, Kubuš P, Tomek V, Janoušek J. Left ventricular apical pacing in children: feasibility and long-term effect on ventricular function. Europace 2020; 22:306-313. [PMID: 31808515 DOI: 10.1093/europace/euz325] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/05/2019] [Indexed: 11/12/2022] Open
Abstract
AIMS Left ventricular apical pacing (LVAP) has been reported to preserve left ventricular (LV) function in chronically paced children with complete atrioventricular block (CAVB). We sought to evaluate long-term feasibility of LVAP and the effect on LV mechanics and exercise capacity as compared to normal controls. METHODS AND RESULTS Thirty-six consecutive paediatric patients with CAVB and LVAP in the absence (N = 22) or presence of repaired structural heart disease (N = 14, systemic LV in all) and 25 age-matched normal controls were cross-sectionally studied after a median of 3.9 (interquartile range 2.1-6.8) years of pacing using echocardiography and exercise stress testing. Pacemaker implantation was uneventful and there was no death. Probability of the absence of pacemaker-related surgical revision (elective generator replacement excluded) was 89.0% at 5 years after implantation. Left ventricular apical pacing patients had lower maximum oxygen uptake (P = 0.009), no septal to lateral but significant apical to basal LV mechanical delay (P < 0.001) which correlated with decreased LV contraction efficiency (P = 0.001). Left ventricular ejection fraction and global longitudinal LV strain were, however, not different from controls. Results were similar in both the presence and absence of structural heart disease. CONCLUSION Left ventricular apical pacing is technically feasible with a low reintervention rate. Mechanical synchrony between LV septum and free wall is maintained at the price of an apical to basal mechanical delay associated with LV contraction inefficiency as compared to healthy controls. Global LV systolic function is, however, not negatively affected by LVAP.
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Affiliation(s)
- Jan Kovanda
- Children's Heart Centre, 2nd Faculty of Medicine, Charles University in Prague, Motol University Hospital, V Úvalu 84, 150 06 Prague 5, Czech Republic
| | - Miroslav Ložek
- Children's Heart Centre, 2nd Faculty of Medicine, Charles University in Prague, Motol University Hospital, V Úvalu 84, 150 06 Prague 5, Czech Republic.,Department of Biomedical Informatics, 1st Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Shin Ono
- Department of Pediatric Cardiology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Peter Kubuš
- Children's Heart Centre, 2nd Faculty of Medicine, Charles University in Prague, Motol University Hospital, V Úvalu 84, 150 06 Prague 5, Czech Republic
| | - Viktor Tomek
- Children's Heart Centre, 2nd Faculty of Medicine, Charles University in Prague, Motol University Hospital, V Úvalu 84, 150 06 Prague 5, Czech Republic
| | - Jan Janoušek
- Children's Heart Centre, 2nd Faculty of Medicine, Charles University in Prague, Motol University Hospital, V Úvalu 84, 150 06 Prague 5, Czech Republic
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36
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Rathgeber SL, Sanatani GE, Sanatani S. Reversible cardiac dysfunction associated with physiologic high-rate dual-chamber pacing in an infant with acquired complete atrioventricular heart block. HeartRhythm Case Rep 2020; 6:102-105. [PMID: 32099800 PMCID: PMC7026561 DOI: 10.1016/j.hrcr.2019.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Egbe AC, Najam M, Banala K, Vojjini R, Osman K, Abhishek D. Effect of right ventricular pacing on left ventricular systolic function in patients with Tetralogy of Fallot. IJC HEART & VASCULATURE 2020; 26:100426. [PMID: 31763440 PMCID: PMC6864126 DOI: 10.1016/j.ijcha.2019.100426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/15/2019] [Accepted: 09/16/2019] [Indexed: 11/25/2022]
Abstract
Background Prevalence of pacemaker-induced cardiomyopathy (PICM) in adults with congenital heart disease is unknown. Tetralogy of Fallot (TOF) is a common diagnosis in the adult congenital heart disease population, and the purpose of this study was to determine association between frequent right ventricular (RV) pacing and temporal decrease in left ventricular ejection fraction (LVEF) from pre-implantation to 2-years post-implantation (LVEFpost-pre) in TOF patients. Methods We studied TOF patients that received RV leads only (N = 51) and a reference group of 7 patients with atrial pacing or biventricular pacing. We defined PICM as a ≥10% decrease in LVEF resulting in LVEF <50%. Linear regression was used to assess relationship between frequent RV pacing (≤20%, 21–40%, >40%) and LVEFpost-pre. Results PICM occurred in 2 (4%) of 51 patients in RV pacing group. LVEFpost-pre was +3% (95% confidence interval [CI] 0% to +5%) in the reference group and −4% (95% CI −11% to +2%) in RV pacing group. No significant difference occured in LVEFpost-pre between the reference group (LVEFpost-pre +3%) vs RV pacing ≤20% (LVEFpost-pre +1%) vs RV pacing 21–40% (LVEFpost-pre −3%) vs RV pacing >40% (LVEFpost-pre −5%), p = 0.318. There was also no association between frequent RV pacing and LVEFpost-pre, R2 = 0.307, p = 0.10. Conclusion PICM occurred in 4% of TOF patients receiving RV pacing, and there was no association between frequent RV pacing and temporal decline in LVEF. Further studies are required to determine the long-term impact of RV pacing in the TOF population, and explore optimal treatment strategies.
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Koester C, Ibrahim AM, Cancel M, Labedi MR. The Ubiquitous Premature Ventricular Complex. Cureus 2020; 12:e6585. [PMID: 32051798 PMCID: PMC7001138 DOI: 10.7759/cureus.6585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 01/06/2020] [Indexed: 12/17/2022] Open
Abstract
Premature ventricular complexes (PVCs) are one of the most commonly encountered arrhythmias and are ubiquitous in clinical practice, both in the outpatient and inpatient settings. They are often discovered incidentally in asymptomatic patients, however, can cause myriad symptoms acutely and chronically. Long thought to be completely benign, PVCs have been historically disregarded without pursuing any further evaluation. Newer data have revealed that a high burden of PVCs with specific characteristics can significantly increase a patient's risk of developing PVC-induced cardiomyopathy. The aim of this literature review is to provide further clarification on the identification of high-risk PVCs, subsequent workup, and the currently available treatment options. PVCs arise from an ectopic focus within the ventricles. Patients with PVCs can be either asymptomatic or have severe disabling symptoms. The diagnostic workup for PVCs includes electrocardiogram (ECG) and 24-h Holter monitor to assess the QRS morphology and its frequency. A transthoracic echocardiogram (TTE) is done to look for structural heart disease and cardiomyopathy. Management of PVCs should be focused on identifying and treating the underlying causes, such as electrolyte abnormalities, substance use, and underlying structural heart disease. Beta-blockers are first-line therapy for symptomatic PVCs. Nondihydropyridine calcium channel blockers, classic antiarrhythmic agents, and amiodarone can be considered as second-line agents. Patients who are unable to tolerate medical therapy should undergo catheter ablation of the PVC focus to prevent PVC-induced cardiomyopathy. PVCs are common in clinical practice, and it is vital to identify patients at higher risk for PVC-induced cardiomyopathy to facilitate early intervention. Patients with no evidence of structural heart disease and infrequent PVCs should be monitored closely, while those who are symptomatic should be treated medically. For those who have failed medical therapy, catheter ablation of the PVCs focus is recommended. Catheter ablation has been shown to reduce PVCs burden and improve left ventricular ejection fraction (LVEF) in those with PVC-induced cardiomyopathy.
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Affiliation(s)
- Cameron Koester
- Internal Medicine, Southern Illinois University School of Medicine, Springfield, USA
| | - Abdisamad M Ibrahim
- Internal Medicine, Southern Illinois University School of Medicine, Springfield, USA
| | - Michelle Cancel
- Internal Medicine, Southern Illinois University School of Medicine, Springfield, USA
| | - Mohamed R Labedi
- Internal Medicine: Cardiology, Southern Illinois University School of Medicine, Springfield, USA
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Dasgupta S, Madani R, Figueroa J, Cox D, Ferguson E, Border W, Sachdeva R, Fischbach P, Whitehill R. Myocardial deformation as a predictor of right ventricular pacing‐induced cardiomyopathy in the pediatric population. J Cardiovasc Electrophysiol 2019; 31:337-344. [DOI: 10.1111/jce.14312] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/28/2019] [Accepted: 12/06/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Soham Dasgupta
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Rohit Madani
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Janet Figueroa
- Department of BiostatisticsEmory University Atlanta Georgia
| | - David Cox
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Eric Ferguson
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - William Border
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Ritu Sachdeva
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Peter Fischbach
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
| | - Robert Whitehill
- Division of Cardiology, Department of Pediatrics, Children's Healthcare of AtlantaEmory University Atlanta Georgia
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40
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Kaye G. The desire for physiological pacing: Are we there yet? J Cardiovasc Electrophysiol 2019; 30:3025-3038. [DOI: 10.1111/jce.14248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/11/2019] [Accepted: 10/16/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Gerry Kaye
- University of Queensland Medical School, Herston Brisbane Queensland Australia
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41
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Congenital heart block: Pace earlier (Childhood) than later (Adulthood). Trends Cardiovasc Med 2019; 30:275-286. [PMID: 31262557 DOI: 10.1016/j.tcm.2019.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/16/2019] [Accepted: 06/17/2019] [Indexed: 12/22/2022]
Abstract
Congenital complete heart block (CCHB) occurs in 2-5% of pregnancies with positive anti-Ro/SSA and/or anti-La/SSB antibodies, and has a recurrence rate of 12-25% in a subsequent pregnancy. After trans-placental passage, these autoantibodies attack and destroy the atrioventricular (AV) node in susceptible fetuses with the highest-risk period observed between 16 and 28 weeks' gestational age. Many mothers are asymptomatic carriers, while <1/3 have a preexisting diagnosis of a rheumatic disease. The mortality of CCHB is predominant in utero and in the first months of life, reaching 15-30%. The diagnosis of CCHB can be confirmed by fetal echocardiography before birth and by electrocardiography after birth. Whether early in-utero detection and treatment might prevent or reverse this condition remains controversial. In addition to autoantibody-associated CCHB, there is also an isolated (absent structural heart disease) nonimmune early- or late-onset heart block detected later in childhood that may be associated with specific genetic markers or other pathogenic mechanisms. In isolated immune or non-immune CCHB, cardiac pacemakers are implanted in symptomatic patients, however, data on the natural history of CCHB in the adult life indicate that all patients, even if asymptomatic, should receive a pacemaker when first diagnosed. However, important issues have emerged in these patients wherein life-long conventional right ventricular apical pacing may produce left ventricular dysfunction (pacing-induced cardiomyopathy) necessitating a priori alternate site pacing or subsequent upgrading to biventricular pacing. All these issues are herein reviewed and two algorithms are proposed for diagnosis and management of CCHB in the fetus and in the older individual.
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Hazards of ventricular pre-excitation to left ventricular systolic function and ventricular wall motion in children: analysis of 25 cases. Cardiol Young 2019; 29:380-388. [PMID: 30767835 DOI: 10.1017/s1047951118002500] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AimThe aim was to attach importance to the hazards of ventricular pre-excitation on left ventricular systolic function and size. METHOD: We analysed the clinical, electrophysiological, and echocardiographic characteristics of the 25 cases with abnormal ventricular wall motion, left ventricular systolic dysfunction, or dilation with co-existing right-sided overt accessary pathways before and after ablation or medication during March 2011 and June 2017. Moreover, we compared the therapy effect between patients with ventricular pre-excitation-induced dilated cardiomyopathy and idiopathic dilated cardiomyopathy without ventricular pre-excitation.ResultAbnormal ventricular wall motion was demonstrated using M-mode echocardiography in 23 cases. The basal segments of the interventricular septum became thin and moved similarly to an aneurysm with typical bulging during end-systole, which was observed in 16 cases. Dilated cardiomyopathy was diagnosed in 14 cases. A total of 23 patients underwent successful ablations and received medications, and the other two patients received only oral medications because of young age. The prognosis of pre-excitation-induced dilated cardiomyopathy is better than idiopathic dilated cardiomyopathy. All the cases with abnormal ventricular wall motion demonstrated recovery of normal left ventricular ejection fraction and decreased left ventricular end-diastolic diameter through ablation. CONCLUSION: Ventricular pre-excitation caused by right-sided accessory pathways may result in abnormal ventricular wall motion, left ventricular systolic dysfunction, dilation, and even dilated cardiomyopathy. In some cases with dilated cardiomyopathy, ventricular pre-excitation may not be the cause of disease but a harmful factor which hampered the recovering of left ventricular systolic function. These conditions are indications for ablation with good prognosis.
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Karpawich PP. Optimizing resynchronization pacing in the failing systemic right ventricle. Pacing Clin Electrophysiol 2019; 42:178-179. [DOI: 10.1111/pace.13560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 11/17/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Peter P. Karpawich
- Section of Pediatric Cardiology, The Children's Hospital of Michigan; Wayne State University School of Medicine; Detroit Michigan
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Nadeem F, Tsushima T, Ladas TP, Thomas RB, Patel SM, Saric P, Patel T, Lipinski J, Li J, Costa MA, Simon DI, Kalra A, Attizzani GF, Arruda MS, Mackall J, Thal SG. Impact of Right Ventricular Pacing in Patients Who Underwent Implantation of Permanent Pacemaker After Transcatheter Aortic Valve Implantation. Am J Cardiol 2018; 122:1712-1717. [PMID: 30266255 DOI: 10.1016/j.amjcard.2018.07.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/27/2018] [Accepted: 07/31/2018] [Indexed: 01/08/2023]
Abstract
Atrioventricular conduction disturbances requiring implantation of permanent pacemaker (PPM) are a common complication following transcatheter aortic valve implantation (TAVI). Previous registry data are conflicting but suggestive of an increased risk in heart failure admissions in the post-TAVI PPM cohort. Given the expanding use of TAVI, the present study evaluates the effects of chronic right ventricular pacing (RV pacing) in post-TAVI patients. This is a single-center study of 672 patients who underwent TAVI from 2011 to 2017 of which 146 underwent PPM. Follow-up 1-year post-TAVI outcome data were available for 55 patients and were analyzed retrospectively. Patients who underwent PPM were more likely to have heart failure admissions (17.1% vs 10.1%; hazard ratio [HR] 1.70; 95% confidence interval [CI] 1.10 to 2.64; p 0.019) and a trend toward increased mortality (21.9% vs 15.4%; HR 1.42; 95% CI 0.99 to 2.05; p 0.062). At 1-year follow-up, 30 of 55 (54.5%) patients demonstrated >40% RV pacing. Compared with patients who had <40% RV pacing, those with >40% RV pacing were more likely to have heart failure admissions (8% vs 40%; HR 5.0; 95% CI 1.23 to 20.27; p 0.007) and demonstrated a trend toward increased mortality (12% vs 33.3%; HR 2.78; 95% CI 0.86 to 9.00; p 0.064). This is suggestive that the post-TAVI PPM cohort is particularly sensitive to chronic RV pacing.
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Affiliation(s)
- Fahd Nadeem
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Takahiro Tsushima
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Thomas P Ladas
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Rahul B Thomas
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Sandeep M Patel
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Petar Saric
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Toral Patel
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | | | - Jun Li
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Marco A Costa
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Daniel I Simon
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Ankur Kalra
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Guillherme F Attizzani
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Mauricio S Arruda
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Judith Mackall
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Sergio G Thal
- Harrington Heart and Vascular Institute, University Hospitals Cleveland Medical Center, Cleveland, Ohio.
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Baskar S, Redington AN, Khoury PR, Knilans TK, Spar DS, Czosek RJ. Ventricular force-frequency relationships during biventricular or multisite pacing in congenital heart disease. CONGENIT HEART DIS 2018; 14:201-206. [PMID: 30324754 DOI: 10.1111/chd.12684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/06/2018] [Accepted: 09/12/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Traditional indices to evaluate biventricular (BiV) pacing are load dependent, fail to assess dynamic changes, and may not be appropriate in patients with congenital heart disease (CHD). We therefore measured the force-frequency relationship (FFR) using tissue Doppler-derived isovolumic acceleration (IVA) to assess the dynamic adaption of the myocardium and its variability with different ventricular pacing strategies. METHODS This was a prospective pilot study of pediatric and young adult CHD patients with biventricular or multisite pacing systems. Color-coded myocardial velocities were recorded at the base of the systemic ventricular free wall. IVA was calculated at resting heart rate and with incremental pacing. FFR curves were obtained by plotting IVA against heart rate for different ventricular pacing strategies. RESULTS Ten patients were included (mean: 22 ± 7 years). The FFR identified a best and worst ventricular pacing strategy for each patient, based on the AUC at baseline, submaximal, and peak heart rates (P < .001). However, there was no single best ventricular pacing strategy that was optimal for all patients. Additionally, the best ventricular pacing strategy often differed within the same patient at different heart rates. CONCLUSION This novel assessment demonstrates a wide variability in optimal ventricular pacing strategy. These inherent differences may play a role in the unpredictable clinical response to BiV pacing in CHD, and emphasizes an individualized approach. Furthermore, the optimal ventricular pacing varies with heart rate within individuals, suggesting that rate-responsive ventricular pacing modulation may be required to optimize ventricular performance.
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Affiliation(s)
- Shankar Baskar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Andrew N Redington
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Philip R Khoury
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Timothy K Knilans
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David S Spar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
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46
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Kaye G, Ng JY, Ahmed S, Valencia D, Harrop D, Ng ACT. The Prevalence of Pacing-Induced Cardiomyopathy (PICM) in Patients With Long Term Right Ventricular Pacing - Is it a Matter Of Definition? Heart Lung Circ 2018; 28:1027-1033. [PMID: 30017634 DOI: 10.1016/j.hlc.2018.05.196] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 04/25/2018] [Accepted: 05/27/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND Chronic right ventricular pacing may contribute to deterioration in left ventricular ejection fraction (LVEF). The aim of the study was to identify the prevalence of pacing-induced cardiomyopathy (PICM) in patients with chronic right ventricular pacing. METHODS Patients attending a pacemaker clinic were retrospectively identified as having had transthoracic echocardiographic LVEF measurement during the 12 months prior to device implantation. Those with cardioverter-defibrillators or biventricular devices were excluded. The remaining patients were invited back for a repeat echocardiogram. Three (3) different definitions of PICM were employed: 1) follow-up LVEF of ≤40% if baseline LVEF was ≥50%, or an absolute reduction in LVEF ≥5% if baseline LVEF was <50%; 2) follow-up LVEF of ≤40% if baseline LVEF was ≥50%, or an absolute reduction in LVEF ≥10% if baseline LVEF was ≤50%; 3) absolute reduction in LVEF ≥10% irrespective of baseline LVEF. Alternate causes of cardiomyopathy were excluded following a chart review. RESULTS The study cohort of 118 included 67 males (mean age 77.8±10.5years) and 51 females (mean age 76.8±11.2years). The mean time between baseline and follow-up echocardiograms was 3.5+1.4years (range 1.5-6.4 years). The prevalence of PICM ranged from 5.9 to 39.0% depending on PICM definition. Multivariate analysis found that PICM was significantly associated with ventricular pacing burden (p=0.013). CONCLUSIONS The prevalence of pacing induced cardiomyopathy is dependent on current accepted clinical definitions. A clear definition of PICM is required for a better understanding of the clinical implications of right ventricular pacing.
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Affiliation(s)
- Gerald Kaye
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia; The University of Queensland, Faculty of Medicine, Brisbane, Qld, Australia.
| | - Jun Yen Ng
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia
| | - Shameer Ahmed
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia
| | - Diana Valencia
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia
| | - Danielle Harrop
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia
| | - Arnold C T Ng
- Department of Cardiology, Princess Alexandra Hospital, Brisbane, Qld, Australia; The University of Queensland, Faculty of Medicine, Brisbane, Qld, Australia; The University of Queensland, Centre for Advanced Imaging, Brisbane, Qld, Australia
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Leung LWM, Evranos B, Narain R, Gallagher MM. Left ventricular lead misplacement discovered a decade after cardiac resynchronization therapy-defibrillator implantation: a case report. Eur Heart J Case Rep 2018; 2:yty071. [PMID: 31020148 PMCID: PMC6176968 DOI: 10.1093/ehjcr/yty071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/22/2018] [Indexed: 12/03/2022]
Abstract
Introduction Satisfactory left ventricular (LV) lead placement into the coronary sinus (CS) can be achieved in the majority of patients but there are still instances of acute failure most often due to anatomical differences, for example due to tortuous CS anatomy. Chronic LV lead misplacement and its delayed discovery is not a common scenario. It is unclear if chronic dual right ventricular pacing can hasten the progression of heart failure. Case presentation A 73-year-old lady presented to our cardiac centre with severe heart failure. She had non-ischaemic dilated cardiomyopathy with underlying left bundle branch block and a cardiac resynchronization therapy-defibrillator device in situ for the past decade. She also had a chronic pericardial effusion of unknown aetiology. Whilst the patient was being treated for acute heart failure, it was noted on patient telemetry that the QRS morphology for supposed bi-ventricular pacing was unusual. This led to a lateral chest radiograph and a CS venogram to be performed, both of which confirmed that the LV lead was in fact not in the CS. Plans were made to place a new LV lead but unfortunately the patient continued to clinically deteriorate despite maximal treatment and died before this could be performed. Discussion It is only with thorough review of the electrocardiographic data and chest radiography that led to the discovery of chronic LV lead misplacement. This case illustrates the importance of expert review of radiographic imaging and electrocardiographic data in patients with implanted cardiac devices.
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Affiliation(s)
- Lisa W M Leung
- Cardiology Department, Cardiology Clinical Academic Group, St George’s University Hospitals, NHS Foundation Trust, St. George's, University of London, London, UK
| | - Banu Evranos
- Cardiology Department, Cardiology Clinical Academic Group, St George’s University Hospitals, NHS Foundation Trust, St. George's, University of London, London, UK
| | - Rajay Narain
- Cardiology Department, Cardiology Clinical Academic Group, St George’s University Hospitals, NHS Foundation Trust, St. George's, University of London, London, UK
| | - Mark M Gallagher
- Cardiology Department, Cardiology Clinical Academic Group, St George’s University Hospitals, NHS Foundation Trust, St. George's, University of London, London, UK
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De Filippo P, Giofrè F, Leidi C, Senni M, Ferrari P. Transvenous pacing in pediatric patients with bipolar lumenless lead: Ten-year clinical experience. Int J Cardiol 2018; 255:45-49. [PMID: 29317140 DOI: 10.1016/j.ijcard.2018.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/11/2017] [Accepted: 01/02/2018] [Indexed: 10/18/2022]
Abstract
INTRODUCTION A number of challenges can affect long-term performance of endocardial implanted systems in pediatric patients. Select Secure™ lead offers potential advantages for this population. This analysis aims to evaluate long-term performance of this lead in children, with and without congenital heart disease. METHODS A retrospective analysis of all patients younger than 16years, implanted with at least one Select Secure™ lead at our institution, was performed. Clinical patient characteristics, electrical lead parameters, implant related complications, occurrence of surgical revisions and other complications were analyzed. RESULTS From 2006 to 2016, 40 pediatric patients (26 males; age: 10.3±4.6years) underwent a cardiac device implantation with at least one Select Secure™ lead. Axillary vein access was chosen in 77.5% of the procedures. The intra-atrial loop of the leads was successfully created and the generator was placed in a sub-pectoral pocket in all patients. A total of 57 Select Secure™ leads were implanted: 23 in the right atrium and 34 in the right ventricle. PM/ICDs implantation was uneventful in all 40 patients. One lead, dislodged the day after implantation, was successfully extracted and replaced in the same day. Adequate pacing parameters were achieved during a follow-up of 6±2.9years (range 0.9-10.8years). CONCLUSIONS In a pediatric population, the Select Secure™ lead used in the axillary vein, the creation of an intra-atrial loop and the placement of the generator in a sub-pectoral pocket ensured a safe implantation of pacemaker or ICD and an effective stimulation at medium-term follow-up.
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Affiliation(s)
- Paolo De Filippo
- Cardiac Electrophysiology and Pacing Unit, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy.
| | - Fabrizio Giofrè
- Cardiac Electrophysiology and Pacing Unit, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Cristina Leidi
- Cardiac Electrophysiology and Pacing Unit, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Michele Senni
- Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Paola Ferrari
- Cardiac Electrophysiology and Pacing Unit, Cardiovascular Department, Ospedale Papa Giovanni XXIII, Bergamo, Italy
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Gould J, Sieniewicz B, Porter B, Sidhu B, Rinaldi CA. Chronic Right Ventricular Pacing in the Heart Failure Population. Curr Heart Fail Rep 2018; 15:61-69. [PMID: 29435789 PMCID: PMC5857555 DOI: 10.1007/s11897-018-0376-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Purpose of Review We review the trials that have demonstrated potentially harmful effects from right ventricular (RV) apical pacing as well as reviewing the evidence of alternative RV pacing sites and cardiac resynchronization therapy (CRT) for patients who have heart failure and atrioventricular (AV) block. Recent Findings The role of CRT in patients with AV block and impaired left ventricular function remains an important consideration. The BLOCK HF trial demonstrated better outcomes with CRT pacing over RV pacing in patients with left ventricular systolic dysfunction (LVSD) and AV block who were expected to have a high RV pacing burden, but failed to demonstrate a mortality benefit. Summary CRT seems to have a beneficial effect on left ventricular reverse remodeling, systolic function, and clinical outcomes in patients with New York Heart Association (NYHA) functional class I–III heart failure, moderate to severe LVSD, and AV block compared to RV pacing. However, it is less clear whether there is a similar benefit from CRT in patients with a high percentage of RV pacing who have normal or mild LVSD in the treatment of AV block.
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Affiliation(s)
- Justin Gould
- King's College London, London, UK. .,Guy's and St Thomas' NHS Foundation Trust, London, UK.
| | - Benjamin Sieniewicz
- King's College London, London, UK.,Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Bradley Porter
- King's College London, London, UK.,Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Baldeep Sidhu
- King's College London, London, UK.,Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Christopher A Rinaldi
- King's College London, London, UK.,Guy's and St Thomas' NHS Foundation Trust, London, UK
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Panizo JG, Barra S, Mellor G, Heck P, Agarwal S. Premature Ventricular Complex-induced Cardiomyopathy. Arrhythm Electrophysiol Rev 2018; 7:128-134. [PMID: 29967685 DOI: 10.15420/aer.2018.23.2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Premature ventricular complex-induced cardiomyopathy is a potentially reversible condition in which left ventricular dysfunction is induced by the occurrence of frequent premature ventricular complexes (PVCs). Various cellular and extracellular mechanisms and risk factors for developing cardiomyopathy in this context have been suggested but the exact pathophysiological mechanism remains unclear. The suppression of PVCs is usually indicated in symptomatic patients with frequent PVCs and also those with left ventricular dysfunction. Antiarrhythmic drugs are a useful non-invasive treatment to eliminate PVCs, but the side effect profile, including the risk of pro-arrhythmia, along with suboptimal clinical effectiveness, should be weighed against the usually more effective but not risk-free treatment with catheter ablation. The latter has progressively become first line therapy in many patients with PVC-induced cardiomyopathy and should be particularly considered in specific scenarios.
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Affiliation(s)
- Jorge G Panizo
- Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK
| | - Sergio Barra
- Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK
| | - Greg Mellor
- Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK
| | - Patrick Heck
- Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK
| | - Sharad Agarwal
- Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK
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