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Alexander ME, Gongwer R, Trachtenberg FL, Minich LL, Triedman JK, Kaltman JR, Czosek RJ, Tristani-Firouzi M, LaPage MJ, Tsao SS, Radbill AE, DiLorenzo MP, Kovach JR, Stephenson EA, Janson C, Mao C, Salerno JC, Clark BC, Mahgerefteh J, Pilcher T, Johnson TR, Kim JJ, Valdes SO, Cain N, Jackson L, Saarel EV. Limited Relationship Between Echocardiographic Measures and Electrocardiographic Markers of Left Ventricular Size in Healthy Children. Pediatr Cardiol 2024; 45:1055-1063. [PMID: 38520508 DOI: 10.1007/s00246-024-03448-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/07/2024] [Indexed: 03/25/2024]
Abstract
Pediatric ECG standards have been defined without echocardiographic confirmation of normal anatomy. The Pediatric Heart Network Normal Echocardiogram Z-score Project provides a racially diverse group of healthy children with normal echocardiograms. We hypothesized that ECG and echocardiographic measures of left ventricular (LV) dimensions are sufficiently correlated in healthy children to imply a clinically meaningful relationship. This was a secondary analysis of a previously described cohort including 2170 digital ECGs. The relationship between 6 ECG measures associated with LV size were analyzed with LV Mass (LVMass-z) and left ventricular end-diastolic volume (LVEDV-z) along with 11 additional parameters. Pearson or Spearman correlations were calculated for the 78 ECG-echocardiographic pairs with regression analyses assessing the variance in ECG measures explained by variation in LV dimensions and demographic variables. ECG/echocardiographic measurement correlations were significant and concordant in 41/78 (53%), though many were significant and discordant (13/78). Of the 6 ECG parameters, 5 correlated in the clinically predicted direction for LV Mass-z and LVEDV-z. Even when statistically significant, correlations were weak (0.05-0.24). R2 was higher for demographic variables than for echocardiographic measures or body surface area in all pairs, but remained weak (R2 ≤ 0.17). In a large cohort of healthy children, there was a positive association between echocardiographic measures of LV size and ECG measures of LVH. These correlations were weak and dependent on factors other than echocardiographic or patient derived variables. Thus, our data support deemphasizing the use of solitary, traditional measurement-based ECG markers traditionally thought to be characteristic of LVH as standalone indications for further cardiac evaluation of LVH in children and adolescents.
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Affiliation(s)
- Mark E Alexander
- Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.
| | | | | | | | - John K Triedman
- Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | | | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | | | | | - Sabrina S Tsao
- Ann and Robert H. Lurie Children's Hospital, Chicago, IL, USA
- Queen Mary Hospital, University of Hong Kong, Hong Kong, Hong Kong
| | | | | | | | | | | | - Chad Mao
- Children's Healthcare of Atlanta, Atlanta, GA, USA
| | | | | | - Joseph Mahgerefteh
- Children's Hospital at Montefiore, New York, NY, USA
- Mount Sinai Kravis Children's Heart Center, New York, USA
| | | | | | - Jeff J Kim
- Texas Children's Hospital, Houston, TX, USA
| | | | - Nicole Cain
- Medical University of South Carolina, Charleston, SC, USA
| | - Lanier Jackson
- Medical University of South Carolina, Charleston, SC, USA
| | - Elizabeth V Saarel
- St. Luke's Health System, Boise, ID, USA
- Cleveland Clinic Lerner College of Medicine at CWRU, Cleveland, OH, USA
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2
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Ramdat Misier NL, Moore JP, Nguyen HH, Lloyd MS, Dubin AM, Mah DY, Czosek RJ, Khairy P, Chang PM, Nielsen JC, Aydin A, Pilcher TA, O'Leary ET, Shivkumar K, de Groot NMS. Long-Term Outcomes of Cardiac Resynchronization Therapy in Patients With Repaired Tetralogy of Fallot: A Multicenter Study. Circ Arrhythm Electrophysiol 2024; 17:e012363. [PMID: 38344811 DOI: 10.1161/circep.123.012363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 01/17/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND A growing number of patients with tetralogy of Fallot develop left ventricular systolic dysfunction and heart failure, in addition to right ventricular dysfunction. Although cardiac resynchronization therapy (CRT) is an established treatment option, the effect of CRT in this population is still not well defined. This study aimed to investigate the early and late efficacy, survival, and safety of CRT in patients with tetralogy of Fallot. METHODS Data were analyzed from an observational, retrospective, multicenter cohort, initiated jointly by the Pediatric and Congenital Electrophysiology Society and the International Society of Adult Congenital Heart Disease. Twelve centers contributed baseline and longitudinal data, including vital status, left ventricular ejection fraction (LVEF), QRS duration, and NYHA functional class. Outcomes were analyzed at early (3 months), intermediate (1 year), and late follow-up (≥2 years) after CRT implantation. RESULTS A total of 44 patients (40.3±19.2 years) with tetralogy of Fallot and CRT were enrolled. Twenty-nine (65.9%) patients had right ventricular pacing before CRT upgrade. The left ventricular ejection fraction improved from 32% [24%-44%] at baseline to 42% [32%-50%] at early follow-up (P<0.001) and remained improved from baseline thereafter (P≤0.002). The QRS duration decreased from 180 [160-205] ms at baseline to 152 [133-182] ms at early follow-up (P<0.001) and remained decreased at intermediate and late follow-up (P≤0.001). Patients with upgraded CRT had consistent improvement in left ventricular ejection fraction and QRS duration at each time point (P≤0.004). Patients had a significantly improved New York Heart Association functional class after CRT implantation at each time point compared with baseline (P≤0.002). The transplant-free survival rates at 3, 5, and 8 years after CRT implantation were 85%, 79%, and 73%. CONCLUSIONS In patients with tetralogy of Fallot treated with CRT consistent improvement in QRS duration, left ventricular ejection fraction, New York Heart Association functional class, and reasonable long-term survival were observed. The findings from this multicenter study support the consideration of CRT in this unique population.
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Affiliation(s)
- Nawin L Ramdat Misier
- Department of Cardiology, Erasmus Medical Center, Rotterdam , The Netherlands (N.L.R.M., N.M.S.d.G.)
| | - Jeremy P Moore
- Ahmanson/University of California Los Angeles Adult Congenital Heart Disease Center, Los Angeles, CA (J.P.M., K.S.)
| | - Hoang H Nguyen
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX (H.H.N.)
| | - Michael S Lloyd
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, GA (M.S.L.)
| | - Anne M Dubin
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto CA (A.M.D.)
| | - Douglas Y Mah
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston MA (D.Y.M., E.T.O.)
| | - Richard J Czosek
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati OH (R.J.C.)
| | - Paul Khairy
- Electrophysiology Service and Adult Congenital Heart Center, Montreal Heart Institute, Université de Montréal, Montreal Quebec, Canada (P.K.)
| | - Philip M Chang
- Congenital Heart Center, University of Florida Health, Gainesville, FL (P.M.C.)
| | - Jens C Nielsen
- Department of Clinical Medicine, Aarhus University, Aarhus Denmark (J.C.N.)
- Department of Cardiology, Aarhus University Hospital, Aarhus Denmark (J.C.N.)
| | - Alper Aydin
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario Canada (A.A.)
| | - Thomas A Pilcher
- Division of Pediatric Cardiology, Department of Internal Medicine, University of Utah, Salt Lake City UT (T.A.P.)
| | - Edward T O'Leary
- Department of Cardiology, Boston Children's Hospital and Harvard Medical School, Boston MA (D.Y.M., E.T.O.)
| | - Kalyanam Shivkumar
- Ahmanson/University of California Los Angeles Adult Congenital Heart Disease Center, Los Angeles, CA (J.P.M., K.S.)
| | - Natasja M S de Groot
- Department of Cardiology, Erasmus Medical Center, Rotterdam , The Netherlands (N.L.R.M., N.M.S.d.G.)
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Baskar S, Ta HT, Taylor MD, Spar DS, Connor CE, Czosek RJ, Knilans TK. Use of CT Integration During Ventricular Tachycardia Ablation in Patients With Tetralogy of Fallot. JACC Clin Electrophysiol 2024; 10:402-404. [PMID: 37999673 DOI: 10.1016/j.jacep.2023.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/05/2023] [Accepted: 09/24/2023] [Indexed: 11/25/2023]
Affiliation(s)
- Shankar Baskar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
| | - Hieu T Ta
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Michael D Taylor
- Texas Center for Pediatric and Congenital Heart Disease, Dell Children's Medical Center, Austin, Texas, USA
| | - David S Spar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Chad E Connor
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Timothy K Knilans
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Aronoff EB, Baskar S, Czosek RJ, Mays WA, Spar DS, Knilans TK, Powell AW. The Relationship Between Ventilatory Anaerobic Threshold and Arrhythmia in Patients With Catecholaminergic Polymorphic Ventricular Tachycardia. JACC Clin Electrophysiol 2024; 10:373-375. [PMID: 38180435 DOI: 10.1016/j.jacep.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 01/06/2024]
Affiliation(s)
- Elizabeth B Aronoff
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Shankar Baskar
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Richard J Czosek
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Wayne A Mays
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - David S Spar
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Timothy K Knilans
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Adam W Powell
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA; Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
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Czosek RJ, Baskar S, Mohan S, Anderson JB, Spar DS. Incidence and outcome of arrhythmias and electrical disease in patients with Trisomy 18. Am J Med Genet A 2023; 191:2518-2523. [PMID: 37303261 DOI: 10.1002/ajmg.a.63324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 05/11/2023] [Accepted: 05/26/2023] [Indexed: 06/13/2023]
Abstract
Patients with Trisomy 18 have a high incidence of cardiac anomalies and are associated with early death. Because of early mortality, electrical system disease and arrhythmia has been difficult to delineate and the incidence remain unknown. We sought to describe the association and clinical outcomes of electrical system disease and cardiac tachy-arrhythmias in patients with Trisomy 18. This was a retrospective, single institutional study. All patients with Trisomy 18 were included in the study. Patient characteristics, congenital heart disease (CHD), conduction system and clinical tachy-arrhythmia data were collected on all patients. Outcomes including cardiac surgical interventions, electrical system interventions and death were collected until the time of study. Patients with tachy-arrhythmias/electrical system involvement were compared to those without to identify potential associated variables. A total of 54 patients with Trisomy 18 were included in analysis. The majority of patients was female and had associated CHD. AV nodal conduction system abnormalities with either first or second degree AV block were common (15%) as was QTc prolongation (37%). Tachy-arrhythmias were common with 22% of patients having at least one form of tachy-arrhythmia and associated with concomitant conduction system disease (p = 0.002). Tachy-arrhythmias were typically treatable with monitoring or medication with eventual resolution without need for procedural intervention. Although early death was common, there were no causes of death associated with tachy-arrhythmia or conduction system disease. In conclusion, patients with Trisomy 18 have a high incidence of conduction system abnormalities and burden of clinical tachy-arrhythmias. Although frequent, electrical system disease did not affect patient outcome or difficultly of care delivery.
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Affiliation(s)
- Richard J Czosek
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
| | - Shankar Baskar
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
| | - Shaun Mohan
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Kentucky Albert B. Chandler Hospital, Lexington, Kentucky, USA
| | - Jeffrey B Anderson
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
| | - David S Spar
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati Medical Center, Cincinnati, Ohio, USA
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6
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Baskar S, Czosek RJ, Spar DS. A Look Beyond the Sports Field: A Paradigm of Shared Decision Making in Everyday Life. J Am Coll Cardiol 2023; 82:612-614. [PMID: 37558374 DOI: 10.1016/j.jacc.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 06/15/2023] [Indexed: 08/11/2023]
Affiliation(s)
- Shankar Baskar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA.
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
| | - David S Spar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio, USA
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7
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Vari D, Temple J, Tadeo D, Kurek N, Zang H, Evers PD, Anderson JB, Spar DS, Czosek RJ. Transesophageal pacing studies reduce readmission but prolong initial admission in infants with supraventricular tachycardia: A cost-comparison analysis. Heart Rhythm O2 2023; 4:359-366. [PMID: 37361613 PMCID: PMC10288021 DOI: 10.1016/j.hroo.2023.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
Background Supraventricular tachycardia (SVT) is a common arrhythmia. Infants with SVT are often admitted to initiate antiarrhythmics. Transesophageal pacing (TEP) studies can be used to guide therapy prior to discharge. Objective The objective of this study was to investigate the impact of TEP studies on length of stay (LOS), readmission, and cost in infants with SVT. Methods This was a 2-site retrospective review of infants with SVT. One site (Center TEPS) utilized TEP studies in all patients. The other (Center NOTEP) did not. Patients with structural heart disease, patients with gestational age <34 weeks, and patients diagnosed after 6 months were excluded. At Center TEPS, repeat TEP studies were performed after titration of medication until SVT was not inducible. Primary endpoints were LOS and readmission for breakthrough SVT within 31 days of discharge. Hospital reimbursement data were utilized for cost-effectiveness analysis. Results The cohort included 131 patients, 59 in Center TEPS and 72 in Center NOTEP. One patient was readmitted in Center TEPS vs 17 in Center NOTEP (1.6% vs 23.6%; P ≤ .001). Median LOS was longer for Center TEPS at 118.0 (interquartile range [IQR] 74.0-189.5) hours vs Center NOTEP at 66.9 (IQR 45.5-118.3) hours (P = .001). Twenty-one patients had multiple TEP studies. Median length of readmission for Center NOTEP was 65 (IQR 41-101) hours. Including readmission costs, utilization of TEP studies resulted in a probability-weighted cost of $45,531 per patient compared with $31,087 per patient without TEP studies. Conclusion Utilization of TEP studies was associated with decreased readmission rates but longer LOS and greater cost compared with SVT management without TEP studies.
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Affiliation(s)
- Daniel Vari
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Joel Temple
- Nemours Cardiac Center, Nemours Children’s Health, Wilmington, Delaware
| | - Danilo Tadeo
- Nemours Cardiac Center, Nemours Children’s Health, Wilmington, Delaware
| | - Nicholas Kurek
- Division of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Huaiyu Zang
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Patrick D. Evers
- Division of Pediatric Cardiology, Oregon Health and Sciences University, Portland, Oregon
| | - Jeffrey B. Anderson
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Division of Cardiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - David S. Spar
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Division of Cardiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Richard J. Czosek
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Division of Cardiology, University of Cincinnati College of Medicine, Cincinnati, Ohio
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8
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Lampert R, Ackerman MJ, Marino BS, Burg M, Ainsworth B, Salberg L, Tome Esteban MT, Ho CY, Abraham R, Balaji S, Barth C, Berul CI, Bos M, Cannom D, Choudhury L, Concannon M, Cooper R, Czosek RJ, Dubin AM, Dziura J, Eidem B, Emery MS, Estes NAM, Etheridge SP, Geske JB, Gray B, Hall K, Harmon KG, James CA, Lal AK, Law IH, Li F, Link MS, McKenna WJ, Molossi S, Olshansky B, Ommen SR, Saarel EV, Saberi S, Simone L, Tomaselli G, Ware JS, Zipes DP, Day SM. Vigorous Exercise in Patients With Hypertrophic Cardiomyopathy. JAMA Cardiol 2023; 8:595-605. [PMID: 37195701 PMCID: PMC10193262 DOI: 10.1001/jamacardio.2023.1042] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/24/2023] [Indexed: 05/18/2023]
Abstract
Importance Whether vigorous intensity exercise is associated with an increase in risk of ventricular arrhythmias in individuals with hypertrophic cardiomyopathy (HCM) is unknown. Objective To determine whether engagement in vigorous exercise is associated with increased risk for ventricular arrhythmias and/or mortality in individuals with HCM. The a priori hypothesis was that participants engaging in vigorous activity were not more likely to have an arrhythmic event or die than those who reported nonvigorous activity. Design, Setting, and Participants This was an investigator-initiated, prospective cohort study. Participants were enrolled from May 18, 2015, to April 25, 2019, with completion in February 28, 2022. Participants were categorized according to self-reported levels of physical activity: sedentary, moderate, or vigorous-intensity exercise. This was a multicenter, observational registry with recruitment at 42 high-volume HCM centers in the US and internationally; patients could also self-enroll through the central site. Individuals aged 8 to 60 years diagnosed with HCM or genotype positive without left ventricular hypertrophy (phenotype negative) without conditions precluding exercise were enrolled. Exposures Amount and intensity of physical activity. Main Outcomes and Measures The primary prespecified composite end point included death, resuscitated sudden cardiac arrest, arrhythmic syncope, and appropriate shock from an implantable cardioverter defibrillator. All outcome events were adjudicated by an events committee blinded to the patient's exercise category. Results Among the 1660 total participants (mean [SD] age, 39 [15] years; 996 male [60%]), 252 (15%) were classified as sedentary, and 709 (43%) participated in moderate exercise. Among the 699 individuals (42%) who participated in vigorous-intensity exercise, 259 (37%) participated competitively. A total of 77 individuals (4.6%) reached the composite end point. These individuals included 44 (4.6%) of those classified as nonvigorous and 33 (4.7%) of those classified as vigorous, with corresponding rates of 15.3 and 15.9 per 1000 person-years, respectively. In multivariate Cox regression analysis of the primary composite end point, individuals engaging in vigorous exercise did not experience a higher rate of events compared with the nonvigorous group with an adjusted hazard ratio of 1.01. The upper 95% 1-sided confidence level was 1.48, which was below the prespecified boundary of 1.5 for noninferiority. Conclusions and Relevance Results of this cohort study suggest that among individuals with HCM or those who are genotype positive/phenotype negative and are treated in experienced centers, those exercising vigorously did not experience a higher rate of death or life-threatening arrhythmias than those exercising moderately or those who were sedentary. These data may inform discussion between the patient and their expert clinician around exercise participation.
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Affiliation(s)
- Rachel Lampert
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Michael J. Ackerman
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Bradley S. Marino
- Department of Pediatric Cardiology, Cleveland Clinic Heart, Vascular and Thoracic Institute, Cleveland, Ohio
- Lurie Children’s Hospital, Chicago, Illinois
| | - Matthew Burg
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | | | - Lisa Salberg
- Hypertrophic Cardiomyopathy Association, Denville, New Jersey
| | | | - Carolyn Y. Ho
- Cardiovascular Division, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Roselle Abraham
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Seshadri Balaji
- Department of Pediatrics, Oregon Health and Science University, Portland
| | - Cheryl Barth
- Department of Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Charles I. Berul
- Division of Cardiology, Children’s National Hospital, Washington, DC
- Department of Pediatrics, George Washington University School of Medicine, Washington, DC
| | - Martijn Bos
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minnesota
- Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - David Cannom
- Division of Cardiology, PIH Health Good Samaritan Hospital, Los Angeles, California
| | - Lubna Choudhury
- Bluhm Cardiovascular Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | | | - Robert Cooper
- Department of Cardiology, Liverpool Heart and Chest Hospital/Liverpool John Moores University, Liverpool, United Kingdom
| | - Richard J. Czosek
- Department of Pediatrics, Heart Institute, Cincinnati Children’s Hospital, Cincinnati, Ohio
| | - Anne M. Dubin
- Department of Pediatrics, Stanford School of Medicine, Stanford, California
| | - James Dziura
- Yale Center for Analytic Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Benjamin Eidem
- Department of Cardiology, Mayo Clinic, Rochester, Minnesota
- Department of Pediatrics, Mayo Clinic, Rochester, Minnesota
| | - Michael S. Emery
- Department of Cardiovascular Medicine, Cleveland Clinic Heart, Vascular and Thoracic Institute, Cleveland, Ohio
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - N. A. Mark Estes
- Department of Medicine, Tufts Medical Center, Boston, Massachusetts
- Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Susan P. Etheridge
- Department of Pediatrics, Primary Children’s Hospital, Salt Lake City, Utah
| | - Jeffrey B. Geske
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Belinda Gray
- Faculty of Medicine and Health, Royal Prince Alfred Hospital/Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Kevin Hall
- Department of Pediatrics, Yale School of Medicine, New Haven, Connecticut
| | | | - Cynthia A. James
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Ashwin K. Lal
- Department of Pediatrics, Primary Children’s Hospital, Salt Lake City, Utah
| | - Ian H. Law
- Department of Pediatrics, University of Iowa, Iowa City
| | - Fangyong Li
- Yale Center for Analytic Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Mark S. Link
- Department of Medicine, Tufts Medical Center, Boston, Massachusetts
- Department of Internal Medicine, University of Texas, Southwestern, Dallas
| | - William J. McKenna
- Institute of Cardiovascular Medicine, University College London, London, United Kingdom
| | - Silvana Molossi
- Department of Pediatrics, Baylor College of Medicine, Texas Children’s Hospital, Houston
| | - Brian Olshansky
- Department of Internal Medicine, University of Iowa, Iowa City
| | - Steven R. Ommen
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
| | - Elizabeth V. Saarel
- Department of Pediatric Cardiology, Cleveland Clinic Heart, Vascular and Thoracic Institute, Cleveland, Ohio
- Department of Pediatric Cardiology, St Luke’s Health System, Boise, Idaho
| | - Sara Saberi
- Department of Internal Medicine, University of Michigan, Ann Arbor
| | - Laura Simone
- Yale Center for Analytic Sciences, Yale School of Medicine, New Haven, Connecticut
| | - Gordon Tomaselli
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland
- Department of Medicine, Albert Einstein College of Medicine, Bronx, New York
| | - James S. Ware
- National Heart and Lung Institute & MRC London Institute of Medical Sciences, Imperial College London/ Royal Brompton & Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust
| | - Douglas P. Zipes
- Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Sharlene M. Day
- Department of Internal Medicine, University of Michigan, Ann Arbor
- Division of Cardiovascular Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia
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9
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Howard TS, Chiang DY, Ceresnak SR, Ladouceur VB, Whitehill RD, Czosek RJ, Knilans TK, Ahnfeldt AM, Borresen ML, Jaeggi E, Udupa S, Gow R, Moore JP, Galloti RG, Mah DY, Kim JJ, Valdes SO, Milewicz DM, Miyake CY. Atrial Standstill in the Pediatric Population: A Multi-Institution Collaboration. JACC Clin Electrophysiol 2023; 9:57-69. [PMID: 36435694 DOI: 10.1016/j.jacep.2022.08.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 08/08/2022] [Accepted: 08/22/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Atrial standstill (AS) is a rare condition characterized by absence of electrical activity within the atria. Studies to date have been limited. OBJECTIVES The authors sought to describe the clinical characteristics, genetics, and outcomes of patients with AS. METHODS This was a retrospective multicenter study of patients <18 years at AS diagnosis, defined as absence of atrial activity documented during an electrophysiology study, device placement, or noninvasive rhythm tracings and confirmed by echocardiogram. Patients with acquired disorders were excluded. Clinical details and genetic variants were recorded and analyzed. RESULTS Twenty patients were diagnosed at a median age of 6.6 years (IQR: 2.9-10.8 years). Arrhythmias included 16 (80%) with atrial/supraventricular arrhythmias and 8 (40%) with ventricular tachycardia, including 4 with cardiac arrests. A type 1 Brugada pattern was documented in 4. Pacemakers were implanted in 18 (90%). Although atrial leads were attempted in 15, only 4 achieved pacing at implantation. During a median follow-up of 6.9 years (IQR: 1.2-13.3 years), 7 (35%) had thromboembolic events. Of these, none had atrial pacing, 6 were not on anticoagulation, and 1 was on aspirin. Genetic testing identified SCN5A variants in 13 patients (65%). Analyses suggest SCN5A loss-of-function may be one mechanism driving AS. Ventricular arrhythmias and cardiac arrest were more commonly seen in patients with biallelic SCN5A variants. CONCLUSIONS AS may be associated with loss-of-function SCN5A variants. Patients demonstrate atrial and ventricular arrhythmias, and may present challenges during device placement. Patients without the capacity for atrial pacing are at risk for thromboembolic events and warrant anticoagulation.
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Affiliation(s)
- Taylor S Howard
- Department of Pediatrics, Division of Pediatric Cardiology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA.
| | - David Y Chiang
- Department of Medicine, Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Scott R Ceresnak
- Department of Pediatrics, Division of Pediatric Cardiology, Stanford University, Lucille Packard Children's Hospital, Palo Alto, California, USA
| | - Virginie Beausejour Ladouceur
- Department of Pediatrics, Division of Pediatric Cardiology, University of Toronto, The Hospital for Sick Children, Toronto, Ontario Canada
| | - Robert D Whitehill
- Department of Pediatrics, Division of Pediatric Cardiology, Emory University, Children's Hospital of Atlanta, Atlanta, Georgia, USA
| | - Richard J Czosek
- Department of Pediatrics, Division of Pediatric Cardiology, University of Cincinnati, Cincinnati Children's Hospital, Cincinnati, Ohio, USA
| | - Timothy K Knilans
- Department of Pediatrics, Division of Pediatric Cardiology, University of Cincinnati, Cincinnati Children's Hospital, Cincinnati, Ohio, USA
| | - Agnethe M Ahnfeldt
- Department of Pediatrics, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Malene Lando Borresen
- Department of Pediatrics, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Edgar Jaeggi
- Department of Pediatrics, Division of Pediatric Cardiology, University of Toronto, The Hospital for Sick Children, Toronto, Ontario Canada
| | - Sharmila Udupa
- Department of Pediatrics, Division of Pediatric Cardiology, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Ontario Canada
| | - Robert Gow
- Department of Pediatrics, Division of Pediatric Cardiology, University of Ottawa, Children's Hospital of Eastern Ontario, Ottawa, Ontario Canada
| | - Jeremy P Moore
- Department of Pediatrics, Division of Pediatric Cardiology, UCLA Medical Center, Los Angeles, California, USA; Ahmanson/UCLA Congenital Heart Disease Center, Los Angeles, California, USA
| | - Roberto G Galloti
- Department of Pediatrics, Division of Pediatric Cardiology, University of California Los Angeles, UCLA Mattel Children's Hospital, Los Angeles, California, USA
| | - Doug Y Mah
- Department of Pediatrics, Division of Pediatric Cardiology, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Jeffrey J Kim
- Department of Pediatrics, Division of Pediatric Cardiology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Santiago O Valdes
- Department of Pediatrics, Division of Pediatric Cardiology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA
| | - Dianna M Milewicz
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Center at Houston, Houston, Texas, USA
| | - Christina Y Miyake
- Department of Pediatrics, Division of Pediatric Cardiology, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, Texas, USA
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10
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Kharbanda RK, Moore JP, Lloyd MS, Galotti R, Bogers AJJC, Taverne YJHJ, Madhavan M, McLeod CJ, Dubin AM, Mah DY, Chang PM, Kamp AN, Nielsen JC, Aydin A, Tanel RE, Shah MJ, Pilcher T, Evertz R, Khairy P, Tan RB, Czosek RJ, Shivkumar K, de Groot NMS. Cardiac Resynchronization Therapy for Adult Patients With a Failing Systemic Right Ventricle: A Multicenter Study. J Am Heart Assoc 2022; 11:e025121. [DOI: 10.1161/jaha.121.025121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background
The objective of this international multicenter study was to investigate both early and late outcomes of cardiac resynchronization therapy (CRT) in patients with a systemic right ventricle (SRV) and to identify predictors for congestive heart failure readmissions and mortality.
Methods and Results
This retrospective international multicenter study included 13 centers. The study population comprised 80 adult patients with SRV (48.9% women) with a mean age of 45±14 (range, 18–77) years at initiation of CRT. Median follow‐up time was 4.1 (25th–75th percentile, 1.3–8.3) years. Underlying congenital heart disease consisted of congenitally corrected transposition of the great arteries and dextro‐transposition of the great arteries in 63 (78.8%) and 17 (21.3%) patients, respectively. CRT resulted in significant improvement in functional class (before CRT: III, 25th–75th percentile, II–III; after CRT: II, 25th–75th percentile, II–III;
P
=0.005) and QRS duration (before CRT: 176±27; after CRT: 150±24 milliseconds;
P
=0.003) in patients with pre‐CRT ventricular pacing who underwent an upgrade to a CRT device (n=49). These improvements persisted during long‐term follow‐up with a marginal but significant increase in SRV function (before CRT; 30%, 25th–75th percentile, 25–35; after CRT: 31%, 25th–75th percentile, 21–38;
P
=0.049). In contrast, no beneficial change in the above‐mentioned variables was observed in patients who underwent de novo CRT (n=31). A quarter of all patients were readmitted for heart failure during follow‐up, and mortality at latest follow‐up was 21.3%.
Conclusions
This international experience with CRT in patients with an SRV demonstrated that CRT in selected patients with SRV dysfunction and pacing‐induced dyssynchrony yielded consistent improvement in QRS duration and New York Heart Association functional status, with a marginal increase in SRV function.
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Affiliation(s)
- Rohit K. Kharbanda
- Department of Cardiology Erasmus MC, University Medical Center Rotterdam The Netherlands
- Department of Cardiothoracic Surgery Erasmus MC, University Medical Center Rotterdam The Netherlands
| | - Jeremy P. Moore
- Ahmanson/UCLA Adult Congenital Heart Disease Center Los Angeles CA
| | - Michael S. Lloyd
- Division of Cardiology, Department of Medicine Emory University School of Medicine Atlanta GA
| | - Robert Galotti
- Ahmanson/UCLA Adult Congenital Heart Disease Center Los Angeles CA
| | - Ad J. J. C. Bogers
- Department of Cardiothoracic Surgery Erasmus MC, University Medical Center Rotterdam The Netherlands
| | - Yannick J. H. J. Taverne
- Department of Cardiothoracic Surgery Erasmus MC, University Medical Center Rotterdam The Netherlands
| | - Malini Madhavan
- Department of Cardiovascular Diseases Mayo Clinic Rochester MN
| | | | - Anne M. Dubin
- Division of Pediatric Cardiology, Department of Pediatrics Stanford University School of Medicine Stanford CA
| | - Douglas Y. Mah
- Department of Cardiology Boston Children’s Hospital and Harvard Medical School Boston MA
| | - Philip M. Chang
- Congenital Heart Center University of Florida Health Gainesville FL
| | - Anna N. Kamp
- The Heart Center Nationwide Children’s Hospital Colombus OH
| | - Jens C. Nielsen
- Department of Clinical Medicine, Aarhus University and Department of Cardiology Aarhus University Hospital Aarhus Denmark
| | - Alper Aydin
- Division of Cardiology University of Ottawa Heart Institute Ottawa Canada
| | - Ronn E. Tanel
- Division of Pediatric Cardiology, UCSF Benioff Children’s Hospital University of California San Francisco CA
| | - Maully J. Shah
- Division of Cardiology Children’s Hospital of Philadelphia PA
| | - Thomas Pilcher
- Division of Pediatric Cardiology, Department of Internal Medicine University of Utah Salt Lake City UT
| | - Reinder Evertz
- Department of Cardiology Radboud University Medical Center Nijmegen The Netherlands
| | - Paul Khairy
- Electrophysiology Service and Adult Congenital Heart Center, Montreal Heart Institute Université de Montréal Montreal Quebec Canada
| | - Reina B. Tan
- Division of Pediatric Cardiology New York University Langone Medical Center New York NY
| | - Richard J. Czosek
- Division of Pediatric Cardiology Cincinnati Children’s Hospital Medical Center Cincinnati OH
| | | | - Natasja M. S. de Groot
- Department of Cardiology Erasmus MC, University Medical Center Rotterdam The Netherlands
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11
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Moore JP, de Groot NMS, O'Connor M, Cortez D, Su J, Burrows A, Shannon KM, O'Leary ET, Shah M, Khairy P, Atallah J, Wong T, Lloyd MS, Taverne YJHJ, Dubin AM, Nielsen JC, Evertz R, Czosek RJ, Madhavan M, Chang PM, Aydin A, Cano Ó. Conduction System Pacing Versus Conventional Cardiac Resynchronization Therapy in Congenital Heart Disease. JACC Clin Electrophysiol 2022; 9:385-393. [PMID: 36752449 DOI: 10.1016/j.jacep.2022.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Dyssynchrony-associated left ventricular systolic dysfunction is a major contributor to heart failure in congenital heart disease (CHD). Although conventional cardiac resynchronization therapy (CRT) has shown benefit, the comparative efficacy of cardiac conduction system pacing (CSP) is unknown. OBJECTIVES To compare the clinical outcomes of CSP vs conventional CRT in CHD with biventricular, systemic left ventricular anatomy. METHODS Retrospective CSP data from 7 centers were compared with propensity score-matched conventional CRT control subjects. Outcomes were lead performance, change in left ventricular ejection fraction (LVEF), and QRS duration at 12 months. RESULTS A total of 65 CSP cases were identified (mean age 37 ± 21 years, 46% men). The most common CHDs were tetralogy of Fallot (n = 12 [19%]) and ventricular septal defect (n = 12 [19%]). CSP was achieved after a mean of 2.5 ± 1.6 attempts per procedure (38 patients with left bundle branch pacing, 17 with HBP, 10 with left ventricular septal myocardial). Left bundle branch area pacing [LBBAP] vs HBP was associated with a smaller increase in pacing threshold (Δ pacing threshold 0.2 V vs 0.8 V; P = 0.05) and similar sensing parameters at follow-up. For 25 CSP cases and control subjects with baseline left ventricular systolic dysfunction, improvement in LVEF was non-inferior (Δ LVEF 9.0% vs 6.0%; P = 0.3; 95% confidence limits: -2.9% to 10.0%) and narrowing of QRS duration was more pronounced for CSP (Δ QRS duration 35 ms vs 14 ms; P = 0.04). Complications were similar (3 [12%] CSP, 4 [16%] conventional CRT; P = 1.00). CONCLUSIONS CSP can be reliably achieved in biventricular, systemic left ventricular CHD patients with similar improvement in LVEF and greater QRS narrowing for CSP vs conventional CRT at 1 year. Among CSP patients, pacing electrical parameters were superior for LBBAP vs HBP.
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Affiliation(s)
- Jeremy P Moore
- Division of Cardiology, Ahmanson/UCLA Adult Congenital Heart Disease Center, Department of Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA; Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California, USA; Division of Cardiology, Department of Pediatrics, UCLA Medical Center, Los Angeles, California, USA.
| | | | - Matthew O'Connor
- Royal Brompton Hospital, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Daniel Cortez
- Adult Congenital Cardiology and Pediatric Cardiology, University of Minnesota, Minneapolis, Minnesota, USA; Adult Congenital Cardiology and Pediatric Cardiology, UC Davis Medical Center, Sacramento, California, USA
| | - Jonathan Su
- Division of Cardiology, Department of Pediatrics, UCLA Medical Center, Los Angeles, California, USA
| | - Austin Burrows
- David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California, USA
| | - Kevin M Shannon
- Division of Cardiology, Ahmanson/UCLA Adult Congenital Heart Disease Center, Department of Medicine, University of California Los Angeles Medical Center, Los Angeles, California, USA; Cardiac Arrhythmia Center, UCLA Health System, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, California, USA; Division of Cardiology, Department of Pediatrics, UCLA Medical Center, Los Angeles, California, USA
| | - Edward T O'Leary
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Maully Shah
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Paul Khairy
- Montreal Heart Institute, Université de Montréal, Montreal, Quebec, Canada
| | - Joseph Atallah
- Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Tom Wong
- Royal Brompton Hospital, Guy's and St. Thomas' NHS Foundation Trust, London, United Kingdom
| | - Michael S Lloyd
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Yannick J H J Taverne
- Department of Cardiothoracic Surgery, Erasmus Medical Center, University Medical Center, Rotterdam, the Netherlands
| | - Anne M Dubin
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, California, USA
| | - Jens C Nielsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Reinder Evertz
- Department of Cardiology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Richard J Czosek
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Malini Madhavan
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota, USA
| | - Philip M Chang
- Department of Pediatrics, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Alper Aydin
- Division of Cardiology, University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Óscar Cano
- Área de Enfermedades Cardiovasculares, Hospital Universitari i Politècnic La Fe, Centro de Investigaciones Biomédicas en RED en Enfermedades Cardiovasculares, Valencia, Spain
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12
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Vari D, Kurek N, Zang H, Anderson JB, Spar DS, Czosek RJ. Outcomes in Infants with Supraventricular Tachycardia: Risk Factors for Readmission, Recurrence and Ablation. Pediatr Cardiol 2022:10.1007/s00246-022-03035-3. [PMID: 36271968 DOI: 10.1007/s00246-022-03035-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 10/14/2022] [Indexed: 11/26/2022]
Abstract
Supraventricular tachycardia (SVT) is the most common arrhythmia in infants. Once diagnosed, infants are admitted for antiarrhythmic therapy and discharged after observation. There are limited data on risk factors for readmission and readmission rates, while on medication. The objective of this study was to investigate risk factors for readmission and outcomes in infants diagnosed with SVT. This is a single-center retrospective study over a 10-year period of infants under 6 months of age with documented SVT. Infants with congenital heart disease requiring surgical or catheter intervention, gestational age less than 32 weeks or diagnosis of atrial flutter or fibrillation were excluded. The primary outcome was readmission within 31 days of hospital discharge. Long term need for ablation and eventual discontinuation of medications were assessed. Ninety patients were included. Beta blockers were the initial therapy in 66 and 28 required a medication change. Nineteen were readmitted within 31 days of discharge. The only clinical factor associated with early readmission was presence of ventricular pre-excitation (6/19 vs. 8/71, p = 0.03). Patients who were readmitted within 31 days had a longer length of treatment (12 [11.5, 22.0] vs. 10 [7.5, 12.0] months, p = 0.007) and were more likely to undergo ablation (4/19 vs. 2/71, p = 0.017). In this cohort of infants with SVT, readmission was common and ventricular pre-excitation was identified as a risk factor for readmission. Infants who were readmitted within 31 days of discharge had longer length of antiarrhythmic therapy and were more likely to undergo catheter ablation.
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Affiliation(s)
- Daniel Vari
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH, 45229, USA.
| | - Nicholas Kurek
- Division of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
| | - Huaiyu Zang
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH, 45229, USA
| | - Jeffrey B Anderson
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH, 45229, USA
| | - David S Spar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH, 45229, USA
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, OH, 45229, USA
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13
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Chubb H, Bulic A, Mah D, Moore JP, Janousek J, Fumanelli J, Asaki SY, Pflaumer A, Hill AC, Escudero C, Kwok SY, Mangat J, Ochoa Nunez LA, Balaji S, Rosenthal E, Regan W, Horndasch M, Asakai H, Tanel R, Czosek RJ, Young ML, Bradley DJ, Paul T, Fischbach P, Malloy-Walton L, McElhinney DB, Dubin AM. Impact and Modifiers of Ventricular Pacing in Patients With Single Ventricle Circulation. J Am Coll Cardiol 2022; 80:902-914. [PMID: 36007989 DOI: 10.1016/j.jacc.2022.05.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/04/2022] [Accepted: 05/23/2022] [Indexed: 10/15/2022]
Abstract
BACKGROUND Palliation of the single ventricle (SV) circulation is associated with a burden of lifelong complications. Previous studies have identified that the need for a permanent ventricular pacing system (PPMv) may be associated with additional adverse long-term outcomes. OBJECTIVES The goal of this study was to quantify the attributable risk of PPMv in patients with SV, and to identify modifiable risk factors. METHODS This international study was sponsored by the Pediatric and Congenital Electrophysiology Society. Centers contributed baseline and longitudinal data for functionally SV patients with PPMv. Enrollment was at implantation. Controls were matched 1:1 to PPMv subjects by ventricular morphology and sex, identified within center, and enrolled at matched age. Primary outcome was transplantation or death. RESULTS In total, 236 PPMv subjects and 213 matched controls were identified (22 centers, 9 countries). Median age at enrollment was 5.3 years (quartiles: 1.5-13.2 years), follow-up 6.9 years (3.4-11.6 years). Median percent ventricular pacing (Vp) was 90.8% (25th-75th percentile: 4.3%-100%) in the PPMv cohort. Across 213 matched pairs, multivariable HR for death/transplant associated with PPMv was 3.8 (95% CI 1.9-7.6; P < 0.001). Within the PPMv population, higher Vp (HR: 1.009 per %; P = 0.009), higher QRS z-score (HR: 1.19; P = 0.009) and nonapical lead position (HR: 2.17; P = 0.042) were all associated with death/transplantation. CONCLUSIONS PPMv in patients with SV is associated with increased risk of heart transplantation and death, despite controlling for increased associated morbidity of the PPMv cohort. Increased Vp, higher QRS z-score, and nonapical ventricular lead position are all associated with higher risk of adverse outcome and may be modifiable risk factors.
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Affiliation(s)
- Henry Chubb
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA; Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Stanford University, Stanford, California, USA.
| | - Anica Bulic
- Labatt Family Heart Centre, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Douglas Mah
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts, USA; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Jeremy P Moore
- Division of Cardiology, Department of Pediatrics, UCLA Health System, Los Angeles, California, USA; Division of Cardiology, Department of Medicine, Ahmanson/UCLA Adult Congenital Heart Disease Center, Los Angeles, California, USA; UCLA Cardiac Arrhythmia Center, UCLA Health System, Los Angeles, California, USA
| | - Jan Janousek
- Children's Heart Centre, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Jennifer Fumanelli
- Children's Heart Centre, Second Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic; Pediatric Cardiology Unit, Department of Women's and Child's Health, University of Padova, Padova, Italy
| | - S Yukiko Asaki
- Primary Children's Hospital, University of Utah, Salt Lake City, Utah, USA
| | - Andreas Pflaumer
- The Royal Children's Hospital, MCRI and University of Melbourne, Melbourne, Victoria, Australia
| | - Allison C Hill
- Division of Cardiology, Children's Hospital Los Angeles, Los Angeles, California, USA; Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Carolina Escudero
- Department of Pediatrics, Division of Pediatric Cardiology, University of Alberta, Stollery Children's Hospital, Edmonton, Alberta, Canada
| | - Sit Yee Kwok
- Cardiology Centre, Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong SAR, China
| | - Jasveer Mangat
- Paediatric Cardiology, Great Ormond Street, London, United Kingdom
| | | | - Seshadri Balaji
- Department of Pediatrics, Division of Cardiology, Oregon Health & Science University, Portland, Oregon, USA
| | - Eric Rosenthal
- Paediatric Cardiology, Evelina London Children's Hospital, London, United Kingdom
| | - William Regan
- Paediatric Cardiology, Evelina London Children's Hospital, London, United Kingdom
| | - Michaela Horndasch
- Department of Congenital Heart Diseases and Pediatric Cardiology, German Heart Center Munich, Munich, Germany
| | - Hiroko Asakai
- Department of Paediatrics, University of Tokyo Hospital, Tokyo, Japan
| | - Ronn Tanel
- Division of Pediatric Cardiology, Department of Pediatrics, UCSF School of Medicine, San Francisco, California, USA
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Ohio, USA
| | - Ming-Lon Young
- Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - David J Bradley
- University of Michigan, CS Mott Children's Hospital, Ann Arbor, Michigan, USA
| | - Thomas Paul
- Department of Pediatric Cardiology, Georg-August-University Medical Center, Göttingen, Germany
| | | | | | - Doff B McElhinney
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA; Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Stanford University, Stanford, California, USA
| | - Anne M Dubin
- Division of Pediatric Cardiology, Department of Pediatrics, Stanford University, Stanford, California, USA
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14
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Czosek RJ, Spar DS, Anderson JB, Khoury PR, Webster G. Predictors and Outcomes of Arrhythmia on Stage I Palliation of Single Ventricle Patients. JACC Clin Electrophysiol 2022; 8:1136-1144. [DOI: 10.1016/j.jacep.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/16/2022] [Accepted: 06/19/2022] [Indexed: 11/28/2022]
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15
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Vari D, Tadeo D, Kurek N, Anderson JB, Temple JD, Spar DS, Czosek RJ. PO-674-02 TRANSESOPHAGEAL PACING STUDIES REDUCE READMISSION BUT PROLONG INITIAL ADMISSION IN INFANTS WITH SUPRAVENTRICULAR TACHYCARDIA. Heart Rhythm 2022. [DOI: 10.1016/j.hrthm.2022.03.442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Cain N, Saul JP, Gongwer R, Trachtenberg F, Czosek RJ, Kim JJ, Kaltman JR, LaPage MJ, Janson CM, Singh AK, Hill AC, Landstrom AP, Thacker D, Niu MC, DeWitt ES, Bulic A, Silver ES, Whitehill RD, Decker J, Newburger JW. Relation of Norwood Shunt Type and Frequency of Arrhythmias at 6 Years (from the Single Ventricle Reconstruction Trial). Am J Cardiol 2022; 169:107-112. [PMID: 35101270 DOI: 10.1016/j.amjcard.2021.12.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 01/21/2023]
Abstract
The Norwood procedure with a right ventricular to pulmonary artery shunt (RVPAS) decreases early mortality, but requires a ventriculotomy, possibly increasing risk of ventricular arrhythmias (VAs) compared with the modified Blalock-Taussig shunt (MBTS). The effect of shunt and Fontan type on arrhythmias by 6 years of age in the SVRII (Single Ventricle Reconstruction Extension Study) was assessed. SVRII data collected on 324 patients pre-/post-Fontan and annually at 2 to 6 years included antiarrhythmic medications, electrocardiography (ECG) at Fontan, and Holter/ECG at 6 years. ECGs and Holters were reviewed for morphology, intervals, atrioventricular conduction, and arrhythmias. Isolated VA were seen on 6-year Holter in >50% of both cohorts (MBTS 54% vs RVPAS 60%), whereas nonsustained ventricular tachycardia was rare and observed in RVPAS only (2.7%). First-degree atrioventricular block was more common in RVPAS than MBTS (21% vs 8%, p = 0.01), whereas right bundle branch block, QRS duration, and QTc were similar. Antiarrhythmic medication usage was common in both groups, but most agents also supported ventricular function (e.g., digoxin, carvedilol). Of the 7 patients with death or transplant between 2 and 6 years, none had documented VAs, but compared with transplant-free survivors, they had somewhat longer QRS (106 vs 93 ms, p = 0.05). Atrial tachyarrhythmias varied little between MBTS and RVPAS but did vary by Fontan type (lateral tunnel 41% vs extracardiac conduit 29%). VAs did not vary by Fontan type. In conclusion, at 6-year follow-up, benign VAs were common in the SVRII population. However, despite the potential for increased VAs and sudden death in the RVPAS cohort, these data do not support significant differences or increased risk at 6 years. The findings highlight the need for ongoing surveillance for arrhythmias in the SVR population.
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Affiliation(s)
- Nicole Cain
- Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina.
| | - J Philip Saul
- Department of Pediatrics, West Virginia University School of Medicine, Morgantown, West Virginia
| | | | | | - Richard J Czosek
- The Heart Institute, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jeffrey J Kim
- Department of Pediatric, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas
| | - Jonathon R Kaltman
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland
| | - Martin J LaPage
- Department of Pediatrics, University of Michigan, Ann Arbor, Michigan
| | - Christopher M Janson
- Department of Pediatrics, Children's Hospital of Philadelphia and University of Pennsylvania Medical School, Philadelphia, Pennsylvania
| | - Anoop K Singh
- Department of Pediatrics, Medical College of Wisconsin, Herma Heart Institute, Children's Wisconsin, Milwaukee, Wisconsin
| | - Allison C Hill
- Department of Pediatrics, Children's Hospital Los Angeles, and Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Andrew P Landstrom
- Department of Pediatrics; Department of Cell Biology, Duke University School of Medicine, Durham, North Carolina
| | - Deepika Thacker
- Department of Pediatrics, Nemours Cardiac Center, Alfred I duPont Hospital for Children, Wilmington, Delaware
| | - Mary C Niu
- Department of Pediatrics, Primary Children's Hospital and the University of Utah, Salt Lake City, Utah
| | - Elizabeth S DeWitt
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
| | - Anica Bulic
- Department of Pediatrics, University of Toronto, SickKids Children's Hospital, Toronto, Ontario, Canada
| | - Eric S Silver
- Department of Pediatrics, Children's Hospital of New York, Columbia University Irving Medical Center, New York, New York
| | - Robert D Whitehill
- Emory University School of Medicine, Atlanta, Georgia; Children's Healthcare of Atlanta Sibley Heart Center, Atlanta, Georgia
| | - Jamie Decker
- Department of Pediatrics, Johns Hopkins All Children's Hospital, St. Petersburg, Florida
| | - Jane W Newburger
- Department of Cardiology, Boston Children's Hospital, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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17
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Jefferies JL, Spar DS, Chaouki AS, Khoury PR, Casson P, Czosek RJ. Continuous Arrhythmia Monitoring in Pediatric and Adult Patients With Left Ventricular Noncompaction. Tex Heart Inst J 2022; 49:479861. [PMID: 35395088 DOI: 10.14503/thij-20-7497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Patients with left ventricular noncompaction (LVNC) are at risk of clinically significant arrhythmias and sudden death. We evaluated whether implantable loop recorders could detect significant arrhythmias that might be missed in these patients during annual Holter monitoring. Selected pediatric and adult patients with LVNC who consented to implantable loop recorder placement were monitored for 3 years (study duration, 10 April 2014-9 December 2019). Fourteen subjects were included (age range, 6.5-36.4 yr; 8 males). Of 13 patients who remained after one device extrusion, one underwent implantable cardioverter-defibrillator placement. Four patients (31%) had significant arrhythmias: atrial tachycardia (n=2), nonsustained ventricular tachycardia (n=1), and atrial fibrillation (n=1). All 4 events were clinically asymptomatic and not associated with left ventricular ejection fraction. In addition, a high frequency of benign arrhythmic patterns was detected. Implantable loop recorders enable continuous, long-term detection of important subclinical arrhythmias in selected patients who have LVNC. These devices may prove to be most valuable in patients who have LVNC and moderate or greater ventricular dysfunction.
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Affiliation(s)
- John L Jefferies
- The Cardiovascular Institute, Methodist University of Tennessee Health Science System, Memphis, Tennessee
| | - David S Spar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - A Sami Chaouki
- Department of Pediatrics, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Philip R Khoury
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Paula Casson
- 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.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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18
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Collyer J, Xu F, Munkhsaikhan U, Alberson NF, Orgil BO, Zhang W, Czosek RJ, Lu L, Jefferies JL, Towbin JA, Purevjav E. Combining whole exome sequencing with in silico analysis and clinical data to identify candidate variants in pediatric left ventricular noncompaction. Int J Cardiol 2022; 347:29-37. [PMID: 34752814 DOI: 10.1016/j.ijcard.2021.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Understanding the overall variant burden in pediatric patients with left ventricular noncompaction (LVNC) has clinical implications. Whole exome sequencing (WES) allows detection of coding variants in both candidate cardiomyopathy genes and those included on commercial panels. Other lines of evidence, including in silico analysis, are necessary to reduce the overwhelming number of variants to those most likely having a phenotypic impact. METHODS Five families, including five pediatric probands with LVNC, 5 other affected, and 10 unaffected family members, had WES performed, followed by bioinformatics filtering and Sanger sequencing. Review of the HGMD, variant classification by ACMG guidelines, and clinical information were used to further refine complex genotypes. RESULTS One nonsense and eleven missense variants were identified. In Family 1, affected siblings carried digenic heterozygous variants: E1350K-MYH7 and A276V-ANKRD1. The proband also carried heterozygous W143X-NRG1. Four affected members of Family 2 carried K184Q-MYH7 while unaffected members did not. In Family 3, homozygous A161T-MYH7 and heterozygous P4935T-OBSCN variants were identified in the proband with the latter being absent in his unaffected brother. In Family 4, proband's father and half-sibling have mild hypertrabeculation and carry T3796I-PLEC. The proband, carrying T3796I-PLEC and V2878A-OBSCN, demonstrated higher trabeculation burden. The proband in Family 5 carried four variants, R3247W-PLEC, C92Y-ERG, T1233M-NCOR2, and E54K-HIST1H4B. Application of ACMG criteria and clinical data revealed that W143X-NRG1, P4935T-OBSCN, and V2878A-OBSCN likely have no phenotypic role. CONCLUSIONS We report nine variants, including novel T3796I-PLEC and biallelic A161T-MYH7, likely contributing to phenotypes ranging from asymptomatic hypertrabeculation to severe LVNC with heart failure.
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Affiliation(s)
- John Collyer
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, United States of America
| | - Fuyi Xu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN, United States of America; School of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Undral Munkhsaikhan
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, United States of America
| | - Neely F Alberson
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, United States of America
| | - Buyan-Ochir Orgil
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, United States of America
| | - Wenying Zhang
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America; Laboratory of Genetics and Genomics, Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Richard J Czosek
- Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Lu Lu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, TN, United States of America
| | - John L Jefferies
- Division of Adult Cardiovascular Diseases, University of Tennessee Health Science Center, Memphis, TN, United States of America; Pediatric Cardiology, Le Bonheur Children's Hospital, Memphis, TN, United States of America; Pediatric Cardiology, St. Jude Children's Research Hospital, Memphis, TN, United States of America
| | - Jeffrey A Towbin
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Pediatric Cardiology, Le Bonheur Children's Hospital, Memphis, TN, United States of America; Pediatric Cardiology, St. Jude Children's Research Hospital, Memphis, TN, United States of America
| | - Enkhsaikhan Purevjav
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, United States of America; Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, TN, United States of America.
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19
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Czosek RJ, Zang H, Baskar S, Anderson JB, Knilans TK, Ollberding NJ, Spar DS. Outcomes of Implantable Loop Monitoring in Patients <21 Years of Age. Am J Cardiol 2021; 158:53-58. [PMID: 34503824 DOI: 10.1016/j.amjcard.2021.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/15/2021] [Accepted: 07/19/2021] [Indexed: 11/29/2022]
Abstract
Rhythm-symptom correlation in pediatric patients with syncope/palpitations or at risk cohorts can be difficult, but important given potential associations with treatable or malignant arrhythmia. We sought to evaluate the use, efficacy and outcomes of implantable loop recorders (ILR) in pediatrics. We conducted a retrospective study of pediatric patients (<21 years) with implanted ILR. Patient/historical characteristics and ILR indication were obtained. Outcomes including symptom documentation, arrhythmia detection and ILR based changes in medical care were identified. Comparison of outcomes were performed based on implant indication. Additional sub-analyses were performed in syncope-indication patients comparing those with and without changes in clinical management. A total of 116 patients with ILR implant were identified (79 syncope/37 other). Symptoms were documented 58% of patients (syncope 68% vs nonsyncope 35%; p = 0.002). A total of 37% of patients had a documented clinically significant arrhythmia and 25% of patients had a resultant change in clinical management independent of implant indication. Arrhythmia type was dependent on implant indication with nonsyncope patients having more ventricular arrhythmias. Pacemaker/defibrillator implantation and mediation management were the majority of the clinical changes. In conclusion, IRL utilization in selected pediatric populations is associated with high efficacy and supports clinical management. ILR efficacy is similar regardless of indication although patients with nonsyncope indications had a higher frequency of ventricular arrhythmias as opposed to asystole and heart block in syncope indications. The majority of arrhythmic findings occurred in the first 12 months, and new technology that would allow for less invasive monitoring for 6 to 12 months may be of value.
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Affiliation(s)
- Richard J Czosek
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - Huaiyu Zang
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio
| | - Shankar Baskar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jeffrey B Anderson
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Timothy K Knilans
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Nicholas J Ollberding
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David S Spar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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20
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Czosek RJ, Anderson JB, Baskar S, Khoury PR, Jayaram N, Spar DS. Predictors and outcomes of heart block during surgical stage I palliation of patients with a single ventricle: A report from the NPC-QIC. Heart Rhythm 2021; 18:1876-1883. [PMID: 34029735 PMCID: PMC8607956 DOI: 10.1016/j.hrthm.2021.05.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/12/2021] [Accepted: 05/16/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Mortality in cohorts with a single ventricle remains high with multiple associated factors. The effect of heart block during stage I palliation remains unclear. OBJECTIVE The purpose of this study was to study patient and surgical risks of heart block and its effect on 12-month transplant-free survival in patients with a single ventricle. METHODS Patient, surgical, outcome data and heart block status (transient and permanent) were obtained from the National Pediatric Cardiology Quality Improvement Collaborative single ventricle database. Bivariate analysis was performed comparing patients with and without heart block, and multivariate modeling was used to identify variables associated with block. One-year outcomes were analyzed to identify variables associated with lower 12-month transplant-free survival. RESULTS In total, 1423 patients were identified, of whom 28 (2%) developed heart block (second degree or complete) during their surgical admission. Associated risk factors for block included heterotaxy syndrome (odds ratio [OR] 6.4) and atrial flutter/fibrillation (OR 3.8). Patients with heart block had lower 12-month survival, though only in patients with complete heart block as opposed to second degree block. At 12 months of age, 43% (12/28) of patients with heart block died and were more likely to experience mortality at 12 months than patients without block (OR 4.9; 95% confidence interval 1.4-17.5; P = .01). CONCLUSION Although rare, complete heart block after stage I palliation represents an additional risk of poor outcomes in this high-risk patient population. Heterotaxy syndrome was the most significant risk factor for the development of heart block after stage I palliation. The role of transient block in outcomes and potential rescue with long-term pacing remains unknown and requires additional study.
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Affiliation(s)
- Richard J Czosek
- Division of Cardiology, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - Jeffrey B Anderson
- Division of Cardiology, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Shankar Baskar
- Division of Cardiology, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Philip R Khoury
- Division of Cardiology, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Natalie Jayaram
- Division of Cardiology, Department of Pediatrics, Children's Mercy Kansas City, Kansas City, Missouri
| | - David S Spar
- Division of Cardiology, Department of Pediatrics, Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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21
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Baskar S, Spar DS, LaPage MJ, Dechert-Crooks BE, Ochoa LA, Law IH, Karpawich PP, Torpoco-Rivera D, Follansbee CW, Czosek RJ. B-AB20-03 MULTI-CENTER STUDY EVALUATING THE PRACTICE PATTERN AND OUTCOME OF ABLATION WITHIN THE CORONARY SINUS IN PEDIATRIC PATIENTS. Heart Rhythm 2021. [DOI: 10.1016/j.hrthm.2021.06.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [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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23
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Kappy B, Johnson L, Brown T, Czosek RJ. Accelerated Idioventricular Rhythm: A Rare Case of Wide-Complex Dysrhythmia in a Teenager. J Emerg Med 2021; 60:e89-e94. [PMID: 33485745 DOI: 10.1016/j.jemermed.2020.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/24/2020] [Accepted: 12/06/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Accelerated idioventricular rhythm (AIVR) is an uncommon and typically benign dysrhythmia with similarities to more malignant forms of ventricular tachycardia (VT). It is often seen in adults after myocardial infarctions, although it also arises in the newborn period, as well as in children with and without congenital heart disease. CASE REPORT We describe a presentation of AIVR in an otherwise healthy 13-year-old girl, discovered on arrival to the pediatric emergency department in the setting of post-tonsillectomy bleeding. The case reviews the diagnostic criteria of AIVR, associated symptoms, the pathophysiologic origin of AIVR, and potential treatment strategies. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Given its morphologic similarities to life-threatening forms of VT, AIVR can be misdiagnosed in the emergency department or primary care settings. With an understanding of the dysrhythmia's unique features, emergency physicians can avoid unnecessary interventions and provide the correct diagnosis, workup, and management of AIVR for pediatric patients.
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Affiliation(s)
- Brandon Kappy
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Laurie Johnson
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Tyler Brown
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Cardiology, Cincinnati Children's Hospital Medical Center/University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Cardiology, Cincinnati Children's Hospital Medical Center/University of Cincinnati College of Medicine, Cincinnati, Ohio
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24
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Robinson JA, LaPage MJ, Atallah J, Webster G, Miyake CY, Ratnasamy C, Ollberding NJ, Mohan S, Von Bergen NH, Johnsrude CL, Garnreiter JM, Spar DS, Czosek RJ. Outcomes of Pediatric Patients With Defibrillators Following Initial Presentation With Sudden Cardiac Arrest. Circ Arrhythm Electrophysiol 2021; 14:e008517. [PMID: 33401923 DOI: 10.1161/circep.120.008517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Implantable cardioverter defibrillators (ICD) are recommended for secondary prevention after sudden cardiac arrest (SCA). The outcomes of pediatric patients receiving an ICD after SCA remain unclear. The objective of this study is to evaluate outcomes, future risk for appropriate shocks, and identify characteristics associated with appropriate ICD therapy during follow-up. METHODS Multicenter retrospective analysis of patients (age ≤21 years) without prior cardiac disease who received an ICD following SCA. Patient/device characteristics, cardiac function, and underlying diagnoses were collected, along with SCA event characteristics. Patient outcomes including complications and device therapies were analyzed. RESULTS In total, 106 patients were included, median age 14.7 years. Twenty (19%) received appropriate shocks and 16 (15%) received inappropriate shocks (median follow-up 3 years). First-degree relative with SCA was associated with appropriate shocks (P<0.05). In total, 40% patients were considered idiopathic. Channelopathy was the most frequent late diagnosis not made at time of presentation. Neither underlying diagnosis nor idiopathic status was associated with increased incidence of appropriate shock. Monomorphic ventricular tachycardia (hazard ratio, 4.6 [1.2-17.3]) and family history of sudden death (hazard ratio, 6.5 [1.4-29.8]) were associated with freedom from appropriate shock in a multivariable model (area under the receiver operating characteristic curve, 0.8). Time from diagnoses to evaluation demonstrated a nonlinear association with freedom from appropriate shock (P=0.015). In patients >2 years from implantation, younger age (P=0.02) and positive exercise test (P=0.04) were associated with appropriate shock. CONCLUSIONS The risk of future device therapy is high in pediatric patients receiving an ICD after SCA, irrelevant of underlying disease. Lack of a definitive diagnosis after SCA was not associated with lower risk of subsequent events and does not obviate the need for secondary prophylaxis.
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MESH Headings
- Adolescent
- Child
- Child, Preschool
- Death, Sudden, Cardiac/epidemiology
- Death, Sudden, Cardiac/prevention & control
- Defibrillators, Implantable
- Electric Countershock/instrumentation
- Female
- Humans
- Incidence
- Infant
- Infant, Newborn
- Male
- Primary Prevention/methods
- Retrospective Studies
- Risk Assessment/methods
- Risk Factors
- Secondary Prevention/methods
- Survival Rate/trends
- Tachycardia, Ventricular/mortality
- Tachycardia, Ventricular/physiopathology
- Tachycardia, Ventricular/therapy
- Treatment Outcome
- United States/epidemiology
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Affiliation(s)
- Jeffrey A Robinson
- The Heart Institute (J.A.R., D.S.S., R.J.C.), Cincinnati Children's Hospital Medical Center, OH
- Dr. C.C. & Mabel L. Criss Heart Center, Children's Hospital & Medical Center, University of Nebraska Medical Center, Omaha (J.A.R.)
| | - Martin J LaPage
- C.S. Mott Children's Hospital, University of Michigan, Ann Arbor (M.J.L.)
| | - Joseph Atallah
- Department of Pediatrics, University of Alberta, Edmonton, Canada (J.A.)
| | - Gregory Webster
- Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, IL (G.W.)
| | | | - Christopher Ratnasamy
- Congenital Heart Center, Spectrum Health, Helen DeVos Children's Hospital, Grand Rapids, MI (C.R.)
| | | | - Shaun Mohan
- University of Kentucky HealthCare, Lexington (S.M.)
| | - Nicholas H Von Bergen
- American Family Children's Hospital, University of Wisconsin School of Medicine & Public Health, Madison (N.H.V.B.)
| | | | | | - David S Spar
- The Heart Institute (J.A.R., D.S.S., R.J.C.), Cincinnati Children's Hospital Medical Center, OH
- Division of Biostatistics & Epidemiology (D.S.S., R.J.C.), Cincinnati Children's Hospital Medical Center, OH
| | - Richard J Czosek
- The Heart Institute (J.A.R., D.S.S., R.J.C.), Cincinnati Children's Hospital Medical Center, OH
- Division of Biostatistics & Epidemiology (D.S.S., R.J.C.), Cincinnati Children's Hospital Medical Center, OH
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25
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Abstract
Neonates can have different types of arrhythmias that range from benign to life-threatening. The evaluation, approach to acute presentation, and long-term management depend on correct identification of the arrhythmia. A systematic approach to analyzing the electrocardiogram and the telemetry monitor, if available, is often sufficient to diagnose the type of arrhythmia.
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Affiliation(s)
- Shankar Baskar
- The Heart Institute, Cincinnati Children's Hospital, Cincinnati, OH
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital, Cincinnati, OH
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26
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Baskar S, Bao H, Minges KE, Spar DS, Czosek RJ. Characteristics and Outcomes of Pediatric Patients Who Undergo Placement of Implantable Cardioverter Defibrillators: Insights From the National Cardiovascular Data Registry. Circ Arrhythm Electrophysiol 2019; 11:e006542. [PMID: 30354291 DOI: 10.1161/circep.118.006542] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Implantable cardioverter defibrillators (ICDs) are an important part of therapy for many patients, yet there is little data on population characteristics, complications, or system survival in pediatric patients. Methods A retrospective review of ICD recipients in the National Cardiovascular Data Registry ICD Registry was performed from 2010 to 2016. Patient characteristics and complications between pediatric (≤21 years) and adult populations (>21 years) were compared. Variables associated with complications and early device interventions within the pediatric cohort were evaluated using multivariate modeling. Results There were 562 209 total ICD implants, of which 3461 occurred in the pediatric cohort. Among the pediatric patients, 60% of implants were for primary prevention, and nonischemic cardiomyopathy was the most common underlying disease (60%). Over time, there was an increasing trend of both primary and secondary prevention ICD implantations ( P<0.05). Compared with adults, pediatric patients were more likely to have structural heart disease, hypertrophic cardiomyopathy, and channelopathy, and to receive a single-chamber device (all P<0.001). There was no difference in inhospital complications between the adult and pediatric cohorts (2.4% versus 2.6%, P=0.3). However, among the pediatric patients, lower weight, Ebstein anomaly, worse New York Heart Association class, dual chamber, and cardiac resynchronization therapy-defibrillator were associated with greater risk of complications. Although reintervention for generator replacement or upgrade was more common in adults, the time to reintervention was shorter in the pediatric cohort. Conclusions We observed an increasing trend in ICD device implantation among pediatric patients. The pediatric cohort had similar inhospital complication rates compared with adults but had a shorter time to reintervention.
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Affiliation(s)
- Shankar Baskar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, OH (S.B., D.S.S., R.J.C.)
| | - Haikun Bao
- Center for Outcomes Research and Evaluation, Yale-New Haven Health Services Corporation, CT (H.B., K.E.M.)
| | - Karl E Minges
- Center for Outcomes Research and Evaluation, Yale-New Haven Health Services Corporation, CT (H.B., K.E.M.).,Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT (K.E.M.)
| | - David S Spar
- The Heart Institute, Cincinnati Children's Hospital Medical Center, OH (S.B., D.S.S., R.J.C.)
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, OH (S.B., D.S.S., R.J.C.)
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27
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Saarel EV, Granger S, Kaltman JR, Minich LL, Tristani-Firouzi M, Kim JJ, Ash K, Tsao SS, Berul CI, Stephenson EA, Gamboa DG, Trachtenberg F, Fischbach P, Vetter VL, Czosek RJ, Johnson TR, Salerno JC, Cain NB, Pass RH, Zeltser I, Silver ES, Kovach JR, Alexander ME. Electrocardiograms in Healthy North American Children in the Digital Age. Circ Arrhythm Electrophysiol 2019; 11:e005808. [PMID: 29930156 DOI: 10.1161/circep.117.005808] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 05/03/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND Interpretation of pediatric ECGs is limited by lack of accurate sex- and race-specific normal reference values obtained with modern technology for all ages. We sought to obtain contemporary digital ECG measurements in healthy children from North America, to evaluate the effects of sex and race, and to compare our results to commonly used published datasets. METHODS Digital ECGs (12-lead) were retrospectively collected for children ≤18 years old with normal echocardiograms at 19 centers in the Pediatric Heart Network. Patients were classified into 36 groups: 6 age, 2 sex, and 3 race (white, black, and other/mixed) categories. Standard intervals and amplitudes were measured; mean±SD and 2nd/98th percentiles were determined by age group, sex, and race. For each parameter, multivariable analysis, stratified by age, was conducted using sex and race as predictors. Parameters were compared with 2 large pediatric ECG data sets. RESULTS Among ECGs from 2400 children, significant differences were found by sex and race categories. The corrected QT interval in lead II was greater for girls compared with boys for age groups ≥3 years (P≤0.03) and for whites compared with blacks for age groups ≥12 years (P<0.05). The R wave amplitude in V6 was greater for boys compared with girls for age groups ≥12 years (P<0.001), for blacks compared with white or other race categories for age groups ≥3 years (P≤0.006), and greater compared with a commonly used public data set for age groups ≥12 years (P<0.0001). CONCLUSIONS In this large, diverse cohort of healthy children, most ECG intervals and amplitudes varied by sex and race. These differences have important implications for interpreting pediatric ECGs in the modern era when used for diagnosis or screening, including thresholds for left ventricular hypertrophy.
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Affiliation(s)
| | | | | | - L LuAnn Minich
- Primary Children's Hospital & University of Utah, Salt Lake City (L.L.M., M.T.-F., D.G.G.)
| | | | | | - Kathleen Ash
- Cincinnati Children's Hospital, OH (K.A., R.J.C.)
| | - Sabrina S Tsao
- Ann & Robert H Lurie Children's Hospital, Chicago, IL (S.S.T.)
| | | | | | - David G Gamboa
- Primary Children's Hospital & University of Utah, Salt Lake City (L.L.M., M.T.-F., D.G.G.)
| | | | | | | | | | | | | | - Nicole B Cain
- Medical University of South Carolina, Charleston (N.B.C.)
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28
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Evers PD, Anderson JB, Ryan TD, Czosek RJ, Knilans TK, Spar DS. Wearable cardioverter-defibrillators in pediatric cardiomyopathy: A cost-utility analysis. Heart Rhythm 2019; 17:287-293. [PMID: 31476408 DOI: 10.1016/j.hrthm.2019.08.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) is the most common cardiomyopathy in children. Patients with severe cardiac dysfunction are thought to be at risk of sudden cardiac arrest (SCA). After diagnosis, a period of medical optimization is recommended before permanent implantable cardioverter-defibrillator (ICD) implantation. Wearable cardioverter-defibrillators (WCDs) provide an option for arrhythmia protection as an outpatient during this optimization. OBJECTIVE The purpose of this study was to determine the strategy that optimizes cost and survival during medical optimization of a patient with DCM before ICD placement. METHODS A Markov state transition model was constructed for the 3 clinical approaches to compare costs, clinical outcomes, and quality of life: (1) "Inpatient," (2) "Home-WCD," and (3) "Home-No WCD." Transitional probabilities, costs, and utility metrics were extracted from the existing literature. Cost-effectiveness was assessed comparing each paradigm's incremental cost-effectiveness ratio against a societal willingness-to-pay threshold of $50,000 per quality-adjusted life year. RESULTS The cost-utility analysis illustrated that Home-WCD met the willingness-to-pay threshold with an incremental cost-effectiveness ratio of $20,103 per quality-adjusted life year and 4 mortalities prevented per 100 patients as compared with Home-No WCD. One-way sensitivity analyses demonstrated that Home-No WCD became the most cost-effective solution when the probability of SCA fell below 0.2% per week, the probability of SCA survival with a WCD fell below 9.8%, or the probability of SCA survival with Home-No WCD quadrupled from base-case assumptions. CONCLUSION Based on the existing literature probabilities of SCA in pediatric patients with DCM undergoing medical optimization before ICD implantation, sending a patient home with a WCD may be a cost-effective strategy.
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Affiliation(s)
- Patrick D Evers
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jeffrey B Anderson
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Thomas D Ryan
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Richard J Czosek
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Timothy K Knilans
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - David S Spar
- Children's Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
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29
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Robinson JA, Anderson JB, Knilans TK, Spar DS, Czosek RJ. Can noninvasive testing identify benign patterns of suggested pre-excitation on electrocardiogram? Pacing Clin Electrophysiol 2019; 42:904-909. [PMID: 31077405 DOI: 10.1111/pace.13720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/15/2019] [Accepted: 05/08/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND The presence of anterograde conduction through an accessory pathway (AP) has been linked to sudden cardiac death. Unfortunately, pre-excitation associated with classic pathways can be difficult to differentiate from benign APs such as nodofascicular fibers. OBJECTIVE Identifying characteristics on electrocardiogram (ECG) and exercise that differentiate classic and benign AP connections in suggested pre-excitation patterns. METHODS Retrospective review of patients presenting between 1995 and 2017 with ventricular pre-excitation on ECG, determined to have either typical left-lateral AP during electrophysiology study (EPS), or benign, or no AP determined by either transesophageal electrophysiology study (TEP), or EPS. RESULTS A total of 96 patients were included, 14.2 years (4-24), 45% female, 90% Caucasian. Of these, 60 (63%) had a classic APs identified on EPS and 58 (97%) underwent successful ablation. Conversely, 36 (37%) had benign pathways identified. ECG findings differed between the groups: PR-interval 102 versus 120 ms (P < .0001), QRS-duration 110 versus 102 ms (P < .0001), QRS-axis 74 versus 59 degrees (P = .0005), and QRS onset to peak R/S in limb leads 64 versus 42 ms (P < .0001), and precordial leads 66 versus 46 ms (P < .0001). Change in QRS duration during exercise differed between the groups: 25 versus 2 ms (P < .0001) and ECG characteristics identified the presence of an AP with 97% sensitivity and 94% negative predictive value. CONCLUSION Classic and benign APs exhibit different ECG characteristics, though clinical overlap does not allow for absolute differentiation. These data may help with risk stratification decision making though does not obviate the need for additional invasive testing.
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Affiliation(s)
| | - Jeffrey B Anderson
- 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.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
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30
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Kieu V, Czosek RJ, Knilans TK, Quintessenza JA, Bryant R, Mohan S. Venoarterial extracorporeal membrane oxygenation and implantable cardioverter-defibrillator implantation in a hemodynamically unstable infant with ventricular tachycardia from multiple cardiac rhabdomyomas. HeartRhythm Case Rep 2019; 5:196-200. [PMID: 30997333 PMCID: PMC6453152 DOI: 10.1016/j.hrcr.2018.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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31
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Wittekind SG, Ryan TD, Gao Z, Zafar F, Czosek RJ, Chin CW, Jefferies JL. Contemporary Outcomes of Pediatric Restrictive Cardiomyopathy: A Single-Center Experience. Pediatr Cardiol 2019; 40:694-704. [PMID: 30542921 DOI: 10.1007/s00246-018-2043-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 12/08/2018] [Indexed: 10/27/2022]
Abstract
BACKGROUND Pediatric restrictive cardiomyopathy (RCM) has high mortality in historical cohorts, and traditional management often involves early referral for heart transplantation (HTx). This study sought to determine outcomes of pediatric RCM at a center that has favored medical management over early listing for HTx. METHODS All patients (N = 43) with pure RCM phenotype (RCM, N = 26) and hypertrophic cardiomyopathy with restrictive physiology (RCM/HCM, N = 17) managed at our center over a 15-year period were investigated. Outcomes of those listed for HTx (N = 18) were compared to a benchmark of contemporaneous pediatric RCM patients in the UNOS database (N = 377). Proportional hazards models were used to determine predictors of adverse outcomes. RESULTS The mean age was 11 ± 9 years and 49% were male. 14 of 18 patients listed received HTx. Overall mortality (12%) was identical between the phenotypes; however, RCM patients were more likely to be listed (P = 0.001) and receive HTx (P = 0.02) compared to RCM/HCM. Prior to HTx, 60% had documented arrhythmia, 16% had cardiac arrest, and 7% required mechanical circulatory support. 4 of 17 patients with an ICD/PM received device therapies (four of five shocks appropriate for VT/VF, and two effective anti-tachycardia pacing interventions). Outcomes of those listed for HTx at our center were similar to the UNOS benchmark. In multivariate analysis, markers of congestive heart failure were associated with adverse outcomes. CONCLUSION Heart failure and arrhythmia treatments can delay or possibly prevent the need for HTx in some cases of pediatric RCM. Survival post-HTx is not compromised using this approach.
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Affiliation(s)
- Samuel G Wittekind
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA. .,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA. .,Cincinnati Children's Hospital Medical Center, Heart Institute, Heart Failure/Transplant Program, 3333 Burnet Avenue, MLC 2003, Cincinnati, OH, 45229-3026, USA.
| | - Thomas D Ryan
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Zhiqian Gao
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA
| | - Farhan Zafar
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Clifford W Chin
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA
| | - John L Jefferies
- Cincinnati Children's Hospital Medical Center, Heart Institute, Cincinnati, OH, USA.,Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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32
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Gist KM, Marino BS, Palmer C, Fish FA, Moore JP, Czosek RJ, Cassedy A, LaPage MJ, Law IH, Garnreiter J, Cannon BC, Collins KK. Cosmetic outcomes and quality of life in children with cardiac implantable electronic devices. Pacing Clin Electrophysiol 2018; 42:46-57. [PMID: 30334588 DOI: 10.1111/pace.13522] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 09/05/2018] [Accepted: 09/12/2018] [Indexed: 11/30/2022]
Abstract
BACKGROUND Axillary implant location is an alternative implant location in patients for cardiac implantable electronic devices (CIEDs) for the purposes of improved cosmetic outcome. The impact from the patient's perspective is unknown. The purpose of this study was to compare scar perception scores and quality of life (QOL) in pediatric patients with axillary CIED implant location versus the standard infraclavicular approach. METHODS This is a multicenter prospective study conducted at eight pediatric centers and it includes patients aged from 8 to 18 years with a CIED. Patients with prior sternotomy were excluded. Scar perception and QOL outcomes were compared between the infraclavicular and axillary implant locations. RESULTS A total of 141 patients (83 implantable cardioverter defibrillator [ICD]/58 pacemakers) were included, 55 with an axillary device and 86 with an infraclavicular device. Patients with an ICD in the axillary position had better perception of scar appearance and consciousness. Patients in the axillary group reported, on average, a total Pediatric QOL Inventory score that was 6 (1, 11) units higher than the infraclavicular group, after adjusting for sex and race (P = 0.02). CONCLUSIONS QOL is significantly improved in axillary in comparison to the infraclavicular CIED position, regardless of device type. Scar perception is improved in patients with ICD in the axillary position.
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Affiliation(s)
- Katja M Gist
- Heart Institute, Children's Hospital Colorado, University of Colorado Denver: Anschutz Medical Campus, Aurora, CO, USA
| | - Bradley S Marino
- Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Claire Palmer
- Children's Hospital Colorado Child Health Research Biostatistical Core, University of Colorado Denver: Anschutz Medical Campus, Aurora, CO, USA
| | - Frank A Fish
- Monroe Carell Jr. Children's Hospital at Vanderbilt, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeremy P Moore
- UCLA Medical Center, University of California at Los Angeles, Los Angeles, CA, USA
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Amy Cassedy
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Martin J LaPage
- C.S. Mott Children's Hospital, University of Michigan, Ann Arbor, MI, USA
| | - Ian H Law
- University of Iowa Stead Family Children's Hospital, University of Iowa, Iowa City, IA, USA
| | - Jason Garnreiter
- Cardinal Glennon Children's Hospital, St. Louis University School of Medicine, St. Louis, MO, USA
| | | | - Kathryn K Collins
- Heart Institute, Children's Hospital Colorado, University of Colorado Denver: Anschutz Medical Campus, Aurora, CO, USA
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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] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 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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Mah DY, Sleeper LA, Crosson JE, Czosek RJ, Love BA, McCrindle BW, Muiño-Mosquera L, Olson AK, Pilcher TA, Tierney ESS, Shah MJ, Wechsler SB, Young LT, Lacro RV. Frequency of Ventricular Arrhythmias and Other Rhythm Abnormalities in Children and Young Adults With the Marfan Syndrome. Am J Cardiol 2018; 122:1429-1436. [PMID: 30115424 DOI: 10.1016/j.amjcard.2018.07.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/03/2018] [Accepted: 07/10/2018] [Indexed: 01/14/2023]
Abstract
Patients with the Marfan syndrome (MFS) are at risk for sudden death. The contribution of arrhythmias is unclear. This study examines the prevalence of arrhythmias in children with the MFS and their relation to clinical and/or echocardiographic factors. Data from the Pediatric Heart Network randomized trial of atenolol versus losartan in MFS were analyzed (6 months to 25 years old, aortic root diameter z-score > 3.0, no previous aortic surgery and/or dissection). Baseline 24-hour ambulatory electrocardiographic monitoring was performed. Significant ventricular ectopy (VE) and supraventricular ectopy (SVE) were defined as ≥10 VE or SVE/hour, or the presence of high-grade ectopy. Three-year composite clinical outcome of death, aortic dissection, or aortic root replacement was analyzed. There were 274 analyzable monitors on unique patients from 11 centers. Twenty subjects (7%) had significant VE, 13 (5%) significant SVE; of these, 2 (1%) had both. None had sustained ventricular or supraventricular tachycardia. VE was independently associated with increasing number of major Ghent criteria (odds ratio [OR] = 2.13/each additional criterion, p = 0.03) and greater left ventricular end-diastolic dimension z-score (OR = 1.47/each 1 unit increase in z-score, p = 0.01). SVE was independently associated with greater aortic sinotubular junction diameter z-score (OR = 1.56/each 1 unit increase in z-score, p = 0.03). The composite clinical outcome (14 events) was not related to VE or SVE (p ≥ 0.3), but was independently related to heart rate variability (higher triangular index). In conclusion, in this cohort, VE and SVE were rare. VE was related to larger BSA-adjusted left ventricular size. Routine ambulatory electrocardiographic monitoring may be useful for risk stratification in select MFS patients.
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Affiliation(s)
- Douglas Y Mah
- Departments of Cardiology and Pediatrics, Boston Children's Hospital, Boston, Massachusetts.
| | - Lynn A Sleeper
- Departments of Cardiology and Pediatrics, Boston Children's Hospital, Boston, Massachusetts
| | - Jane E Crosson
- Departments of Cardiology and Pediatrics, Johns Hopkins Children's Center, Baltimore, Maryland
| | - Richard J Czosek
- Departments of Cardiology and Pediatrics, Cincinnati Children's Hospital, Cincinnati, Ohio
| | - Barry A Love
- Departments of Cardiology and Pediatrics, Mount Sinai Kravis Children's Hospital in New York, New York City, New York
| | - Brian W McCrindle
- Departments of Cardiology and Pediatrics, SickKids Toronto, Toronto, Ontario, Canada
| | - Laura Muiño-Mosquera
- Departments of Cardiology and Pediatrics, Ghent University Hospital, Ghent, Belgium
| | - Aaron K Olson
- Departments of Cardiology and Pediatrics, Seattle Children's Hospital, Seattle, Washington
| | - Thomas A Pilcher
- Departments of Cardiology and Pediatrics, Primary Children's Hospital (Utah), Salt Lake City, Utah
| | | | - Maully J Shah
- Departments of Cardiology and Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Stephanie B Wechsler
- Departments of Cardiology and Pediatrics, Duke Children's Hospital, Durham, North Carolina
| | - Luciana T Young
- Departments of Cardiology and Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Ronald V Lacro
- Departments of Cardiology and Pediatrics, Boston Children's Hospital, Boston, Massachusetts
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Hopgood DA, Czosek RJ, Bakas T, Garritano N, Gillespie GL. The Capture Gap: Implantable Cardioverter-Defibrillator Quality of Life. Clin Nurs Res 2018; 29:97-107. [PMID: 30295057 DOI: 10.1177/1054773818803741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We aimed to compare salient characteristics and antecedents of quality of life (QOL) in adolescents and young adults with implantable cardioverter-defibrillators (ICDs) from qualitative methods with quantitative measurement of QOL and correlations between QOL (PedsQL) and measured participant characteristics. Concurrent parallel mixed methods design was used to collect survey data from the PedsQL electronic health record, demographic questionnaire, and semistructured interview data. A convenience sample of 16 individuals with ICDs, aged 13 to 25 years, was obtained from a tertiary pediatric facility. Overall QOL and subdomains of physical, psychosocial, and academic/work were examined by PedsQL and visual analog scale. Select demographics were collected to develop a participant profile. Females with ICDs appear to be at risk of poor QOL given some unknown factors. Financial status of the individual and the family was positively related to QOL. For new ICD persons involved in physical activities that must be stopped, peer support appears to improve QOL.
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Affiliation(s)
- Daniel A Hopgood
- University of Cincinnati, OH, USA.,Ohio University, Athens, OH, USA
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Levin MD, Saitta SC, Gripp KW, Wenger TL, Ganesh J, Kalish JM, Epstein MR, Smith R, Czosek RJ, Ware SM, Goldenberg P, Myers A, Chatfield KC, Gillespie MJ, Zackai EH, Lin AE. Nonreentrant atrial tachycardia occurs independently of hypertrophic cardiomyopathy in RASopathy patients. Am J Med Genet A 2018; 176:1711-1722. [PMID: 30055033 DOI: 10.1002/ajmg.a.38854] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/04/2018] [Accepted: 05/01/2018] [Indexed: 11/12/2022]
Abstract
Multifocal atrial tachycardia (MAT) has a well-known association with Costello syndrome, but is rarely described with related RAS/MAPK pathway disorders (RASopathies). We report 11 patients with RASopathies (Costello, Noonan, and Noonan syndrome with multiple lentigines [formerly LEOPARD syndrome]) and nonreentrant atrial tachycardias (MAT and ectopic atrial tachycardia) demonstrating overlap in cardiac arrhythmia phenotype. Similar overlap is seen in RASopathies with respect to skeletal, musculoskeletal and cutaneous abnormalities, dysmorphic facial features, and neurodevelopmental deficits. Nonreentrant atrial tachycardias may cause cardiac compromise if sinus rhythm is not restored expeditiously. Typical first-line supraventricular tachycardia anti-arrhythmics (propranolol and digoxin) were generally not effective in restoring or maintaining sinus rhythm in this cohort, while flecainide or amiodarone alone or in concert with propranolol were effective anti-arrhythmic agents for acute and chronic use. Atrial tachycardia resolved in all patients. However, a 4-month-old boy from the cohort was found asystolic (with concurrent cellulitis) and a second patient underwent cardiac transplant for heart failure complicated by recalcitrant atrial arrhythmia. While propranolol alone frequently failed to convert or maintain sinus rhythm, fleccainide or amiodarone, occasionally in combination with propranolol, was effective for RASopathy patient treatment for nonreentrant atrial arrhythmia. Our analysis shows that RASopathy patients may have nonreentrant atrial tachycardia with and without associated cardiac hypertrophy. While nonreentrant arrhythmia has been traditionally associated with Costello syndrome, this work provides an expanded view of RASopathy cardiac arrhythmia phenotype as we demonstrate mutant proteins throughout this signaling pathway can also give rise to ectopic and/or MAT.
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Affiliation(s)
- Mark D Levin
- Division of Cardiology, Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Sulagna C Saitta
- Division of Genomic Medicine, Department of Pathology, Children's Hospital Los Angeles and Keck-USC School of Medicine, Los Angeles, California
| | - Karen W Gripp
- Division of Medical Genetics, A. I. du Pont Hospital for Children, Wilmington, Delaware
| | - Tara L Wenger
- Division of Craniofacial Medicine, Seattle Children's Hospital, Seattle, Washington
| | - Jaya Ganesh
- Department of Pediatrics, Cooper Medical School at Rowan University, Camden, New Jersey
| | - Jennifer M Kalish
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Michael R Epstein
- Division of Cardiology, Department of Pediatrics, Maine Medical Center, Portland, Maine
| | - Rosemarie Smith
- Division of Genetics, Department of Pediatrics, Maine Medical Center, Portland, Maine
| | - Richard J Czosek
- The Heart Institute, Division of Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Stephanie M Ware
- Departments of Pediatrics and Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Paula Goldenberg
- Genetics Unit, MassGeneral Hospital for Children, Boston, Massachusetts
| | - Angela Myers
- Division of Medical Genetics, Sanford Health, Sioux Falls, South Dakota
| | - Kathryn C Chatfield
- Department of Pediatrics, Section of Cardiology, University of Colorado School of Medicine, Aurora, Colorado
| | - Matthew J Gillespie
- Division of Cardiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Elaine H Zackai
- Division of Human Genetics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Angela E Lin
- Genetics Unit, MassGeneral Hospital for Children, Boston, Massachusetts
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Spar DS, Bianco NR, Knilans TK, Czosek RJ, Anderson JB. The US Experience of the Wearable Cardioverter-Defibrillator in Pediatric Patients. Circ Arrhythm Electrophysiol 2018; 11:e006163. [PMID: 29945928 DOI: 10.1161/circep.117.006163] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 05/15/2018] [Indexed: 11/16/2022]
Affiliation(s)
- David S. Spar
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, OH (D.S.S., T.K.K., R.J.C., J.B.A.)
| | | | - Timothy K. Knilans
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, OH (D.S.S., T.K.K., R.J.C., J.B.A.)
| | - Richard J. Czosek
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, OH (D.S.S., T.K.K., R.J.C., J.B.A.)
| | - Jeffrey B. Anderson
- The Heart Institute, Cincinnati Children’s Hospital Medical Center, OH (D.S.S., T.K.K., R.J.C., J.B.A.)
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Baskar S, Attari M, Czosek RJ, Jais P, Anderson JB, Spar DS. An unusual cause of lone atrial fibrillation in a young female subject due to a rapid-cycling focal atrial trigger. HeartRhythm Case Rep 2018; 4:204-208. [PMID: 29922577 PMCID: PMC6006482 DOI: 10.1016/j.hrcr.2018.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
- Shankar Baskar
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | | | | | - Pierre Jais
- Hôpital Cardiologique Haut Lévêque, Lyric Institute, Université de Bordeaux, Bordeaux-Pessac, France
| | | | - David S. Spar
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
- Address reprint requests and correspondence: Dr David S. Spar, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Cincinnati, OH 45229.
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Morello ML, Khoury PR, Knilans TK, Veldtman G, Spar DS, Anderson JB, Czosek RJ. Risks and outcomes of direct current cardioversion in children and young adults with congenital heart disease. Pacing Clin Electrophysiol 2018; 41:472-479. [DOI: 10.1111/pace.13315] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 01/28/2018] [Accepted: 02/11/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Melissa L. Morello
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Philip R. Khoury
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Timothy K. Knilans
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Gruschen Veldtman
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - David S. Spar
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Jeffery B. Anderson
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Richard J. Czosek
- Department of Pediatrics, Division of Pediatric Cardiology; The Heart Institute at Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
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Alsaied T, Baskar S, Fares M, Alahdab F, Czosek RJ, Murad MH, Prokop LJ, Divanovic AA. First-Line Antiarrhythmic Transplacental Treatment for Fetal Tachyarrhythmia: A Systematic Review and Meta-Analysis. J Am Heart Assoc 2017; 6:JAHA.117.007164. [PMID: 29246961 PMCID: PMC5779032 DOI: 10.1161/jaha.117.007164] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background There is no consensus on the most effective and best tolerated first‐line antiarrhythmic treatment for fetal tachyarrhythmia. The purpose of this systematic review and meta‐analysis was to compare the efficacy, safety, and fetal–maternal tolerance of first‐line monotherapies for fetal supraventricular tachycardia and atrial flutter. Methods and Results A comprehensive search of several databases was conducted through January 2017. Only studies that made a direct comparison between first‐line treatments of fetal tachyarrhythmia were included. Outcomes of interest were termination of fetal tachyarrhythmia, fetal demise, and maternal complications. Ten studies met inclusion criteria, with 537 patients. Overall, 291 patients were treated with digoxin, 137 with flecainide, 102 with sotalol, and 7 with amiodarone. Digoxin achieved a lower rate of supraventricular tachycardia termination compared with flecainide (odds ratio [OR]: 0.773; 95% confidence interval [CI], 0.605–0.987; I2=34%). In fetuses with hydrops fetalis, digoxin had lower rates of tachycardia termination compared with flecainide (OR: 0.412; 95% CI, 0.268–0.632; I2=0%). There was no significant difference in the incidence of maternal side effects between digoxin and flecainide groups (OR: 1.134; 95% CI, 0.129–9.935; I2=80.79%). The incidence of maternal side effects was higher in patients treated with digoxin compared with sotalol (OR: 3.148; 95% CI, 1.468–6.751; I2=0%). There was no difference in fetal demise between flecainide and digoxin (OR: 0.767; 95% CI, 0.140–4.197; I2=44%). Conclusions Flecainide may be more effective treatment than digoxin as a first‐line treatment for fetal supraventricular tachycardia.
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Affiliation(s)
- Tarek Alsaied
- The Heart Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH.,Department of Cardiology, Boston Children's Hospital, Boston, MA
| | - Shankar Baskar
- The Heart Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Munes Fares
- The Congenital heart collaborative Rainbow Babies and Children's Hospital, Cleveland, OH
| | - Fares Alahdab
- Mayo Clinic Evidence-based Practice Center Mayo Clinic, Rochester, MN
| | - Richard J Czosek
- The Heart Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | | | | | - Allison A Divanovic
- The Heart Institute Cincinnati Children's Hospital Medical Center, Cincinnati, OH
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Baskar S, Jefferies JL, Salberg L, Khoury PR, Spar DS, Knilans TK, Czosek RJ. Patient understanding of disease and the use and outcome of implantable cardioverter defibrillators in hypertrophic cardiomyopathy. Pacing Clin Electrophysiol 2017; 41:57-64. [PMID: 29154461 DOI: 10.1111/pace.13234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 10/18/2017] [Accepted: 10/29/2017] [Indexed: 11/29/2022]
Abstract
Hypertrophic cardiomyopathy (HCM) is the most common cause of sudden cardiac death (SCD) in young individuals. Implantable cardioverter defibrillators (ICD) are the primary therapy for sudden death prevention; however, are associated with both physical and psychological complications. We sought to determine factors associated with ICD understanding and patient satisfaction. This was a cross-sectional study, using patient/parent answered questionnaires distributed to patients enrolled in the Hypertrophic Cardiomyopathy Association. Patient characteristics and satisfaction data were obtained via questionnaire. Patients were compared based on age at diagnosis and presence of ICD. ICD patients with high satisfaction were compared to those with low satisfaction to determine factors associated with poor satisfaction. A total of 538 responses were obtained (53 ± 16 years); 46% were females. Seventy patients (13%) were diagnosed with HCM < 18 years of age and 356 (66%) had an ICD. Compared to those without an ICD, patients with ICDs were younger at age of diagnosis (P = 0.001) and time of study (P = 0.008). Patients with ICDs were more likely to have presented with syncope and have family history of ICD, SCD, or HCM-related death. Nineteen patients (5%) felt that issues surrounding their ICD outweighed its benefit. Compared to patients with a favorable satisfaction, the only significant difference was the preimplant ICD discussion (P < 0.001) and history of lead replacement (P = 0.01). In conclusion, the majority of HCM patients with ICDs are satisfied with their ICD management and feel the benefits of ICDs outweigh issues associated with ICDs. Additionally, these data highlight the importance of the preimplant patient-physician discussion around the need for ICD prior to implantation.
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Affiliation(s)
- Shankar Baskar
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - John L Jefferies
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Lisa Salberg
- Hypertrophic Cardiomyopathy Association, Denville, NJ, USA
| | - Philip R Khoury
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - David S Spar
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Timothy K Knilans
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Richard J Czosek
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Institute at Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
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Czosek RJ, Brown J, Proctor D, Koch P, Martin M, Rust M, Anderson JB. Improvement in patient and physician notification of cardiac rhythm device report transmissions. BMJ Open Qual 2017; 6:e000155. [PMID: 29450294 PMCID: PMC5699127 DOI: 10.1136/bmjoq-2017-000155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 12/02/2022] Open
Abstract
Background Cardiac rhythm devices (CRD) require complex management to identify potential device or patient issues. While easy to obtain, report processing is complex and time consuming. In our population, a majority of reports were performed outside of institutional protocols and no method for electrophysiology (EP) notification for unscheduled reports existed. These process breakdowns led to potential issues with safety and associated loss of work efficiency. Objective Our aim was to decrease the percentage of reports without EP notification from 30% to 10% over a 9-month time period. Methods We created a detailed process map of in-office and home device reporting. Failure mode and effects analysis (FMEA)/Pareto charts were used to determine the mechanistic underpinnings of notification failures and identify areas for process improvement. Multiple interventions were implemented using the Plan-Do-Study-Act (PDSA) technique. Process run charts and control charts were used to evaluate ongoing changes. Results Our FMEA identified failures related to (1) lack of physician understanding of the device reporting system, (2) lack of an easy to use method of EP notification and (3) lack of patient understanding of report notification. Pareto charts identified the most frequent failures to be associated with specific cardiology subspecialties as well as reports sent from home. We performed multiple interventions including(1) creation of an easy to use method of EP notification used by patients and medical staff, (2) physician education and (3) patient education. Compared with baseline reporting, there was a decrease from 30% to <10% of device reports obtained without EP notification. This process improvement additionally resulted in a 34% reduction in time required for device processing. Conclusions Development of a unified EP reporting system and quality improvement methodology resulted in improved CRD report notification and improved efficiency for staff. These process changes resulted in improvement across differing cardiac subspecialty providers and patients.
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Affiliation(s)
- Richard J Czosek
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - James Brown
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Diane Proctor
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Paula Koch
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Michelle Martin
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Mary Rust
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jeffrey B Anderson
- Department of Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Miyake CY, Asaki SY, Webster G, Czosek RJ, Atallah J, Avasarala K, Rao SO, Thomas PE, Kim JJ, Valdes SO, de la Uz C, Wang Y, Wehrens XHT, Abrams D. Circadian Variation of Ventricular Arrhythmias in Catecholaminergic Polymorphic Ventricular Tachycardia. JACC Clin Electrophysiol 2017; 3:1308-1317. [PMID: 29759629 DOI: 10.1016/j.jacep.2017.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 04/25/2017] [Accepted: 05/04/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The aim of this paper was to investigate whether ventricular arrhythmias in children with catecholaminergic polymorphic ventricular tachycardia (CPVT) show circadian patterns. BACKGROUND Circadian arrhythmic patterns have been established in long QT, Brugada, and early repolarization, but have not been investigated in CPVT. METHODS This is a multicenter, retrospective review of pediatric CPVT patients, age <21 years at diagnosis. Timing of ventricular tachycardia (VT ≥3 beats) was assessed during 24-h continuous monitoring (Holter, implantable loop recorder, implantable cardioverter defibrillator) and by eliminating sleep hours, in addition to sporadic exercise stress tests. Morning was defined as 6:00 am to 11:59 am, afternoon 12:00 pm to 5:59 pm, and evening 6:00 pm to 11:59 pm. Distribution of VT events was compared by time of day, day of week, age, and sex. RESULTS Eighty patients (53% male), 61% with an ICD, experienced 423 VT events during a median follow-up time of 6 years (interquartile range: 2 to 10 years). When compared to morning hours, VT was more likely to occur in the afternoon (odds ratio [OR]: 2.54; 95% confidence interval [CI]: 1.69 to 3.83) or evening hours (OR: 2.91; 95% CI: 1.82 to 4.67). The predominance of afternoon/evening events persisted regardless of age, gender, or day of the week. Among 50 patients who underwent exercise stress tests, VT was significantly more likely to occur in the afternoon (OR: 3.00; 95% CI: 1.39 to 6.48). CONCLUSIONS In pediatric CPVT patients, ventricular arrhythmias are more likely to occur in the afternoon and evening hours. Because children's activity levels peak in both the morning and afternoon, the lack of arrhythmias in the morning hours raises questions whether factors other than adrenergic stimulation influence arrhythmia induction in pediatric patients with CPVT.
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Affiliation(s)
- Christina Y Miyake
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas; Department of Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, Texas.
| | - S Yukiko Asaki
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | - Gregory Webster
- Department of Pediatrics, Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Richard J Czosek
- Department of Pediatrics, The Heart Center, Cincinnati Children's Medical Center, Cincinnati, Ohio
| | - Joseph Atallah
- Department of Pediatrics, The Heart Center, Cincinnati Children's Medical Center, Cincinnati, Ohio
| | - Kishor Avasarala
- Department of Pediatrics, Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada; Department of Pediatrics, Children's Hospital Oakland, Oakland, California
| | - Sri O Rao
- Department of Pediatrics, Alaska Children's Heart Center, Anchorage, Alaska
| | - Patricia E Thomas
- Department of Pediatrics, Ochsner Medical Center for Children, New Orleans, Louisiana
| | - Jeffrey J Kim
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | - Santiago O Valdes
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | - Caridad de la Uz
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | - Yunfei Wang
- Department of Pediatrics, Lillie Frank Abercrombie Section of Pediatric Cardiology, Texas Children's Hospital, Baylor College of Medicine, Houston, Texas
| | - Xander H T Wehrens
- Department of Pediatrics, Lurie Children's Hospital, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Dominic Abrams
- Department of Cardiology, Children's Hospital Boston, Boston, Massachusetts; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts
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Wilson HC, Hopkin RJ, Madueme PC, Czosek RJ, Bailey LA, Taylor MD, Jefferies JL. Arrhythmia and Clinical Cardiac Findings in Children With Anderson-Fabry Disease. Am J Cardiol 2017; 120:251-255. [PMID: 28550929 DOI: 10.1016/j.amjcard.2017.04.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/18/2017] [Accepted: 04/18/2017] [Indexed: 12/15/2022]
Abstract
Anderson-Fabry Disease (AFD) is a lysosomal storage disorder that results in progressive cardiovascular hypertrophy, scarring, and arrhythmia burden; yet, the early cardiac phenotype of AFD is still poorly defined. To further characterize early cardiac features in AFD, we evaluated electrocardiographic and clinical findings contained in a local cohort of pediatric AFD patients and arrhythmia data in children enrolled in the Fabry Registry. Twenty-six local patients aged <18 years were identified (average age 9.7 ± 3.8 years, n = 12 males). Sinus bradycardia was the most frequent rhythm abnormality (23%), followed by ectopic atrial rhythm (12%) and premature atrial contractions (8%). No PR, QRS, or QTc intervals were prolonged. First-degree atrioventricular block developed in 1 female during follow-up. Chest pain (35%) and palpitations (23%) were highly prevalent complaints in clinical follow-up and did not differ significantly between genders. Structural findings included aortic root dilation in 3 patients and concurrent aortic insufficiency in 1. Among 593 patients aged < 18 years with electrocardiographic data identified in the Fabry Registry, sinus bradycardia, defined as heart rate <60 beats per minute per registry guidelines, was the most common arrhythmia (12.3%). In conclusion, clinical findings and subtle abnormalities of conduction, rhythm, and structure point toward a heterogeneous inception of Fabry cardiomyopathy. Bradycardia, common in adults, is frequent even among children with AFD. Given the potential for early initiation of enzyme replacement therapy to reduce cardiovascular morbidity, continued work to develop paradigms of therapy and longitudinal cardiovascular surveillance is warranted.
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Knadler JJ, Anderson JB, Chaouki AS, Czosek RJ, Connor C, Knilans TK, Spar DS. Utility and safety of the SafeSept™ transseptal guidewire for electrophysiology studies with catheter ablation in pediatric and congenital heart disease. J Interv Card Electrophysiol 2017; 48:369-374. [PMID: 28091832 DOI: 10.1007/s10840-017-0224-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 01/04/2017] [Indexed: 10/20/2022]
Abstract
PURPOSE The atrial transseptal procedure is used in catheter ablation of left-sided arrhythmias. Studies in adult patients have shown the SafeSept™ transseptal guidewire (SSTG) to be effective in atrial transseptal procedures. We analyzed our 5-year experience with SSTG use in pediatric and congenital heart disease patients undergoing catheter ablation. METHODS This is a single-center retrospective analysis of patients undergoing catheter ablation from 2009 to 2014. We identified all procedures where SSTG was used for atrial transseptal or trans-baffle access. Success of transseptal access and complications were recorded and compared to the standard transseptal approach without the SSTG. RESULTS One hundred twenty-seven patients underwent 132 attempted atrial transseptal or trans-baffle procedures using SSTG. Median age was 14 (1.2-38) years. Arrhythmia substrates included AV reentrant tachycardia (90.2%), atrial tachycardia (4.5%), ventricular tachycardia (2.3%), and AV nodal reentrant tachycardia (2.3%). Transseptal or trans-baffle access was successful in 96.2% of the SSTG cases compared to 98.9% in the standard transseptal group without SSTG (p = NS). The youngest patient with successful atrial transseptal procedure using SSTG was 4 years old. SSTG was used to successfully cross a surgically created atrial baffle in a patient who had undergone the Mustard procedure. There was one major complication in both groups, 0.8% in the SSTG group compared to the standard transseptal group without SSTG, 1.1% (p = NS). The major complication in the SSTG group occurred when the SSTG crossed the aorta into the coronary artery system and mimicked placement in the left atrial appendage, with subsequent placement of a transseptal sheath into the aorta, requiring sternotomy and surgical intervention. CONCLUSIONS SSTG is effective for use in atrial transseptal and surgical trans-baffle access in pediatric and congenital heart disease patients. Placement of the SSTG into the pulmonary vein is necessary to avoid major complications, and if not achieved requires additional methods to determine appropriate left atrial placement.
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Affiliation(s)
- Joseph J Knadler
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA. .,, 6621 Fannin Street, MC: 19345-C, Houston, TX, 77030, USA.
| | - Jeffrey B Anderson
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
| | - Ahmad S Chaouki
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
| | - Richard J Czosek
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
| | - Chad Connor
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
| | - Timothy K Knilans
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
| | - David S Spar
- Cincinnati Children's Hospital Medical Center, The Heart Institute, Division of Pediatric Cardiology, 3333 Burnet Avenue, Cincinnati, OH, USA
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Oster ME, Chen S, Dagincourt N, Bar-Cohen Y, Brothers M, Cain N, Colan SD, Czosek RJ, Decker JA, Gamboa DG, Idriss SF, Kirsh JA, LaPage MJ, Ohye RG, Radojewski E, Shah M, Silver ES, Singh AK, Temple JD, Triedman J, Kaltman JR. Development and impact of arrhythmias after the Norwood procedure: A report from the Pediatric Heart Network. J Thorac Cardiovasc Surg 2016; 153:638-645.e2. [PMID: 27939495 DOI: 10.1016/j.jtcvs.2016.10.078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 10/18/2016] [Accepted: 10/19/2016] [Indexed: 02/03/2023]
Abstract
OBJECTIVES The study objective was to determine the predictors of new-onset arrhythmia among infants with single-ventricle anomalies during the post-Norwood hospitalization and the association of those arrhythmias with postoperative outcomes (ventilator time and length of stay) and interstage mortality. METHODS After excluding patients with preoperative arrhythmias, we used data from the Pediatric Heart Network Single Ventricle Reconstruction Trial to identify risk factors for tachyarrhythmias (atrial fibrillation, atrial flutter, supraventricular tachycardia, junctional ectopic tachycardia, and ventricular tachycardia) and atrioventricular block (second or third degree) among 544 eligible patients. We then determined the association of arrhythmia with outcomes during the post-Norwood hospitalization and interstage period, adjusting for identified risk factors and previously published factors. RESULTS Tachyarrhythmias were noted in 20% of subjects, and atrioventricular block was noted in 4% of subjects. Potentially significant risk factors for tachyarrhythmia included the presence of modified Blalock-Taussig shunt (P = .08) and age at Norwood (P = .07, with risk decreasing each day at age 8-20 days); the only significant risk factor for atrioventricular block was undergoing a concomitant procedure at the time of the Norwood (P = .001), with the greatest risk being in those undergoing a tricuspid valve procedure. Both tachyarrhythmias and atrioventricular block were associated with longer ventilation time and length of stay (P < .001 for all analyses). Tachyarrhythmias were not associated with interstage mortality; atrioventricular block was associated with mortality among those without a pacemaker in the unadjusted analysis (hazard ratio, 2.3; P = .02), but not after adding covariates. CONCLUSIONS Tachyarrhythmias are common after the Norwood procedure, but atrioventricular block may portend a greater risk for interstage mortality.
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Affiliation(s)
- Matthew E Oster
- Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Ga.
| | - Shan Chen
- New England Research Institutes, Watertown, Mass
| | | | - Yaniv Bar-Cohen
- Division of Pediatric Cardiology, Department of Pediatrics, Children's Hospital Los Angeles, Los Angeles, Calif
| | - Matthew Brothers
- Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, Ga
| | - Nicole Cain
- Department of Pediatrics, Medical University of South Carolina, Charleston, SC
| | - Steven D Colan
- Department of Cardiology, Boston Children's Hospital, Boston, Mass
| | - Richard J Czosek
- Division of Pediatric Cardiology, Department of Pediatrics, The Heart Center, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jamie A Decker
- Department of Pediatrics, Johns Hopkins All Children's Heart Institute, St Petersburg, Fla
| | - David G Gamboa
- Division of Pediatric Cardiology, Department of Pediatrics, University of Utah, Salt Lake City, Utah
| | - Salim F Idriss
- Division of Pediatric Cardiology, Department of Pediatrics, Duke University Medical Center, Durham, NC
| | - Joel A Kirsh
- Department of Paediatrics & Labatt Family Heart Centre, Hospital for Sick Children & University of Toronto, Toronto, Ontario
| | - Martin J LaPage
- Division of Pediatric Cardiology, Department of Pediatrics and Communicable Diseases, University of Michigan, Ann Arbor, Mich
| | - Richard G Ohye
- Department of Pediatrics, University of Michigan Medical School, Ann Arbor, Mich
| | - Elizabeth Radojewski
- Department of Paediatrics & Labatt Family Heart Centre, Hospital for Sick Children & University of Toronto, Toronto, Ontario
| | - Maully Shah
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pa
| | - Eric S Silver
- Division of Pediatrics, Columbia University Medical Center, New York, NY
| | - Anoop K Singh
- Department of Pediatrics, Children's Hospital of Wisconsin, Milwaukee, Wis
| | - Joel D Temple
- Division of Cardiology, Department of Pediatrics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Del
| | - John Triedman
- Department of Cardiology, Boston Children's Hospital, Boston, Mass
| | - Jonathan R Kaltman
- Division of Cardiovascular Sciences, The National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
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Chaouki AS, Spar DS, Khoury PR, Anderson JB, Knilans TK, Morales DLS, Czosek RJ. Risk factors for complications in the implantation of epicardial pacemakers in neonates and infants. Heart Rhythm 2016; 14:206-210. [PMID: 27756705 DOI: 10.1016/j.hrthm.2016.10.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Complications related to epicardial pacemakers in infants have been reported, though limited data are available on their incidence and associated risk factors. OBJECTIVE The hypothesis of the study is that younger, smaller patients and larger devices would be associated with complications in neonates and infants. METHODS This is a retrospective study of all patients at a single center receiving an epicardial pacemaker at ≤12 months of age (1996-2015). Patient and device characteristics were obtained. Characteristics of patients with and without complications were compared. RESULTS There were 86 patients with a median age of 73 days (interquartile range 13-166 days), of whom 12 (14%) had a complication. Eight (9%) needed surgical intervention, of whom 5 (6%) required explantation. Younger age (9 days vs 89 days; P = .01) and lower weight (2.91 kg vs 4.44 kg; P = .004) at implantation were associated with complications. Device characteristics were not statistically different. Patients ≤3 kg in weight and/or <5 days of age had an odds ratio of 18.1 (3.6-91.2; P < .001) for developing a complication with a negative predictive value (NPV) of 97%. Regardless of weight, patients aged >21 days were found to be at lower risk with an NPV of 96%; and regardless of age, patients weighing >4 kg had an NPV of 98%. CONCLUSION Young age and low weight at the time of implantation are risk factors for complications, while device characteristics appear to play a minor role. Reserving pacemaker implantation for patients >3 kg in weight and 5 days of age may predict patients at low risk of developing complications.
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Affiliation(s)
- A Sami Chaouki
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| | - David S Spar
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Philip R Khoury
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jeffrey B Anderson
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Timothy K Knilans
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - David L S Morales
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Richard J Czosek
- Division of Cardiology, Department of Pediatrics, The Heart Institute, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, Ohio
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48
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Moore JP, Wang S, Albers EL, Salerno JC, Stephenson EA, Shah MJ, Pflaumer A, Czosek RJ, Garnreiter JM, Collins K, Papez AL, Sanatani S, Cain NB, Kannankeril PJ, Perry JC, Mandapati R, Silva JN, Balaji S, Shannon KM. A Clinical Risk Score to Improve the Diagnosis of Tachycardia-Induced Cardiomyopathy in Childhood. Am J Cardiol 2016; 118:1074-80. [PMID: 27515893 DOI: 10.1016/j.amjcard.2016.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 10/21/2022]
Abstract
Tachycardia-induced cardiomyopathy (TIC) is a treatable cause of heart failure in children, but there is little information as to which clinical variables best discriminate TIC from other forms of cardiomyopathy. TIC cases with dilated cardiomyopathy (DC) from 16 participating centers were identified and compared with controls with other forms of DC. Presenting clinical, echocardiographic, and electrocardiographic characteristics were collected. Heart rate (HR) percentile was defined as HR/median HR for age, and PR index as the PR/RR interval. P-wave morphology (PWM) was defined as possible sinus or nonsinus based on a predefined algorithm. Eighty TIC cases and 135 controls were identified. Cases demonstrated lower LV end-diastolic diameter and LV end-systolic diameter than DC controls (4.3 vs 6.5, p <0.001; 7.4 vs 10.9, p <0.001) and were less likely to receive inotropic medication at presentation (p <0.001 for both). Multivariable logistic regression identified HR percentile (OR 2.1 per 10% increase, CI 1.3 to 4.6; p = 0.014), PR index (OR 1.2, CI 1.1 to 1.4; p = 0.004), and nonsinus PWM (OR 104.9, CI 15.2 to 1,659.8; p <0.001) as predictive of TIC status. A risk score using HR percentile >130%, PR index >30%, and nonsinus PWM was associated with a sensitivity of 100% and specificity of 87% for the diagnosis of TIC. Model training and validation area under the curves were similar at 0.97 and 0.94, respectively. In conclusion, pediatric TIC may be accurately discriminated from other forms of DC using simple electrocardiographic parameters. This may allow for rapid diagnosis and early treatment of this condition.
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49
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Dalal A, Czosek RJ, Kovach J, von Alvensleben JC, Valdes S, Etheridge SP, Ackerman MJ, Auld D, Huckaby J, McCracken C, Campbell R. Clinical Presentation of Pediatric Patients at Risk for Sudden Cardiac Arrest. J Pediatr 2016; 177:191-196. [PMID: 27502104 DOI: 10.1016/j.jpeds.2016.06.088] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 05/16/2016] [Accepted: 06/29/2016] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To identify the clinical presentation of children and adolescents affected by 1 of 4 cardiac conditions predisposing to sudden cardiac arrest: hypertrophic cardiomyopathy, long QT syndrome (LQTS), catecholaminergic polymorphic ventricular tachycardia (CPVT), and anomalous origin of the left coronary artery from the right sinus of Valsalva (ALCA-R). STUDY DESIGN This was a retrospective review of newly diagnosed pediatric patients with hypertrophic cardiomyopathy, LQTS, CPVT, and ALCA-R referred for cardiac evaluation at 6 US centers from 2008 to 2014. RESULTS A total of 450 patients (257 male/193 female; median age 10.1 years [3.6-13.8 years, 25th-75th percentiles]) were enrolled. Patient age was ≤13 years for 70.4% of the cohort (n = 317). Sudden cardiac arrest was the initial presentation in 7%; others were referred on the basis of abnormal or suspicious family history, personal symptoms, or physical findings. Patients with LQTS and hypertrophic cardiomyopathy were referred most commonly because of family history concerns. ALCA-R was most likely to have abnormal signs or symptoms (eg, exercise chest pain, syncope, or sudden cardiac arrest). Patients with CPVT had a high incidence of syncope and the greatest incidence of sudden cardiac arrest (45%); 77% exhibited exercise syncope or sudden cardiac arrest. This study demonstrated that suspicious or known family history plays a role in identification of many patients ultimately affected by 1 of the 3 genetic disorders (hypertrophic cardiomyopathy, LQTS, CPVT). CONCLUSION Important patient and family history and physical examination findings may allow medical providers to identify many pediatric patients affected by 4 cardiac disorders predisposing to sudden cardiac arrest.
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Affiliation(s)
- Aarti Dalal
- Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA; Monroe Carell Jr. Children's Hospital at Vanderbilt, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN
| | - Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | - Joshua Kovach
- Children's Hospital of Wisconsin, Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI
| | - Johannes C von Alvensleben
- C.S. Mott Children's Hospital, Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI; Children's Hospital Colorado, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Santiago Valdes
- Texas Children's Hospital, Department of Pediatrics, Baylor College of Medicine, Houston, TX
| | - Susan P Etheridge
- Primary Children's Hospital, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT
| | - Michael J Ackerman
- Mayo Clinic, Department of Pediatric and Adolescent Medicine, Mayo Clinic College of Medicine, Rochester, MN
| | - Debbie Auld
- Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | - Jeryl Huckaby
- Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | - Courtney McCracken
- Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA
| | - Robert Campbell
- Children's Healthcare of Atlanta, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA.
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50
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Affiliation(s)
- Richard J Czosek
- The Heart Institute, Cincinnati Children's Hospital Medical Center , Cincinnati, Ohio , USA
| | - Jeffery B Anderson
- The Heart Institute, Cincinnati Children's Hospital Medical Center , Cincinnati, Ohio , USA
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