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2021 PACES Expert Consensus Statement on the Indications and Management of Cardiovascular Implantable Electronic Devices in Pediatric Patients

Shah, Maully J; Silka, Michael J; Silva, Jennifer Avari; Balaji, Seshadri; Beach, Cheyenne; Benjamin, Monica; Berul, Charles; Cannon, Bryan; Cecchin, Frank; Cohen, Mitchell; Dalal, Aarti; Dechert, Brynn; Foster, Anne; Gebauer, Roman; Gonzalez Corcia, M Cecilia; Kannankeril, Prince; Karpawich, Peter; Kim, Jeffery; Krishna, Mani Ram; Kubuš, Peter; Malloy-Walton, Lindsey; LaPage, Martin; Mah, Doug; Miyazaki, Aya; Motonaga, Kara; Niu, Mary; Olen, Melissa; Paul, Thomas; Rosenthal, Eric; Saarel, Elizabeth; Silvetti, Massimo Stefano; Stephenson, Elizabeth; Tan, Reina; Triedman, John; Von Bergen, Nicholas; Wackel, Philip
In view of the increasing complexity of both cardiovascular implantable electronic devices (CIEDs) and patients in the current era, practice guidelines, by necessity, have become increasingly specific. This document is an expert consensus statement that has been developed to update and further delineate indications and management of CIEDs in pediatric patients, defined as ≤21 years of age, and is intended to focus primarily on the indications for CIEDs in the setting of specific disease categories. The document also highlights variations between previously published adult and pediatric CIED recommendations and provides rationale for underlying important differences. The document addresses some of the deterrents to CIED access in low- and middle-income countries and strategies to circumvent them. The document sections were divided up and drafted by the writing committee members according to their expertise. The recommendations represent the consensus opinion of the entire writing committee, graded by class of recommendation and level of evidence. Several questions addressed in this document either do not lend themselves to clinical trials or are rare disease entities, and in these instances recommendations are based on consenus expert opinion. Furthermore, specific recommendations, even when supported by substantial data, do not replace the need for clinical judgment and patient-specific decision-making. The recommendations were opened for public comment to Pediatric and Congenital Electrophysiology Society (PACES) members and underwent external review by the scientific and clinical document committee of the Heart Rhythm Society (HRS), the science advisory and coordinating committee of the American Heart Association (AHA), the American College of Cardiology, (ACC) and the Association for European Paediatric and Congenital Cardiology (AEPC). The document received endorsement by all the collaborators and the Asia Pacific Heart Rhythm Society (APHRS), the Indian Heart Rhythm Society (IHRS), and the Latin American Heart Rhythm Society (LAHRS). This document is expected to provide support for clinicians and patients to allow for appropriate CIED use, appropriate CIED management, and appropriate follow-up in pediatric patients.
PMID: 34338183
ISSN: 1467-1107
CID: 4979802

Genotype Predicts Outcomes in Fetuses and Neonates With Severe Congenital Long QT Syndrome

Moore, Jeremy P; Gallotti, Roberto G; Shannon, Kevin M; Bos, J Martijn; Sadeghi, Elham; Strasburger, Janette F; Wakai, Ronald T; Horigome, Hitoshi; Clur, Sally-Ann; Hill, Allison C; Shah, Maully J; Behere, Shashank; Sarquella-Brugada, Georgia; Czosek, Richard; Etheridge, Susan P; Fischbach, Peter; Kannankeril, Prince J; Motonaga, Kara; Landstrom, Andrew P; Williams, Matthew; Patel, Akash; Dagradi, Federica; Tan, Reina B; Stephenson, Elizabeth; Krishna, Mani Ram; Miyake, Christina Y; Lee, Michelle E; Sanatani, Shubhayan; Balaji, Seshadri; Young, Ming-Lon; Siddiqui, Saad; Schwartz, Peter J; Shivkumar, Kalyanam; Ackerman, Michael J
OBJECTIVES/OBJECTIVE:This study sought to determine the relationship between long QT syndrome (LQTS) subtype (LTQ1, LTQ2, LTQ3) and postnatal cardiac events (CEs). BACKGROUND:LQTS presenting with 2:1 atrioventricular block or torsades de pointes in the fetus and/or neonate has been associated with risk for major CEs, but overall outcomes and predictors remain unknown. METHODS:A retrospective study involving 25 international centers evaluated the course of fetuses/newborns diagnosed with congenital LQTS and either 2:1 atrioventricular block or torsades de pointes. The primary outcomes were age at first CE after dismissal from the newborn hospitalization and death and/or cardiac transplantation during follow-up. CE was defined as aborted cardiac arrest, appropriate shock from implantable cardioverter-defibrillator, or sudden cardiac death. RESULTS:A total of 84 fetuses and/or neonates were identified with LQTS (12 as LQT1, 35 as LQT2, 37 as LQT3). Median gestational age at delivery was 37 weeks (interquartile range: 35 to 39 weeks) and age at hospital discharge was 3 weeks (interquartile range: 2 to 5 weeks). Fetal demise occurred in 2 and pre-discharge death in 1. Over a median of 5.2 years, there were 1 LQT1, 3 LQT2, and 23 LQT3 CEs (13 aborted cardiac arrests, 5 sudden cardiac deaths, and 9 appropriate shocks). One patient with LQT1 and 11 patients with LQT3 died or received cardiac transplant during follow-up. The only multivariate predictor of post-discharge CEs was LQT3 status (LQT3 vs. LQT2: hazard ratio: 8.4; 95% confidence interval: 2.6 to 38.9; p < 0.001), and LQT3, relative to LQT2, genotype predicted death and/or cardiac transplant (p < 0.001). CONCLUSIONS:In this large multicenter study, fetuses and/or neonates with LQT3 but not those with LQT1 or LQT2 presenting with severe arrhythmias were at high risk of not only frequent, but lethal CEs.
PMID: 33213816
ISSN: 2405-5018
CID: 4671352

Pseudopolymorphic Wide Complex Tachycardia in a Child With Long QT Syndrome [Case Report]

Cerrone, Marina; Magnani, Silvia; Borneman, Linda; Cecchin, Frank; Tan, Reina; Fowler, Steven J; Chinitz, Larry; Jankelson, Lior
Implantable loop recorders (ILRs) can be a valuable tool in monitoring patients with inherited arrhythmia. This paper reports on a family with long QT syndrome (type 2 [LQT2]) in which a pseudopolymorphic wide complex tachycardia detected by ILR was ultimately diagnosed as a supraventricular aberrant rhythm, facilitated by noncompliance with beta-blocker therapy. (Level of Difficulty: Intermediate.).
PMCID:8298547
PMID: 34317300
ISSN: 2666-0849
CID: 4949452

MANAGEMENT STRATEGIES AND OUTCOMES OF SIGNATURE LONG QT SYNDROME ARRHYTHMIA PRESENTING IN THE PERINATAL PERIOD: A MULTICENTER REGISTRY STUDY [Meeting Abstract]

Harake, D; Moore, J P; Gallotti, R G; Bos, J M; Ackerman, M J; Czosek, R J; Motonaga, K S; Kannankeril, P J; Williams, M R; Fischbach, P S; Etheridge, S P; Tan, R B; Miyake, C Y; Balaji, S; Shannon, K M
Background: Long QT syndrome (LQTS) may present in the fetus or neonate with signature rhythms of torsades de pointes (TdP) or AV block (AVB).
Objective(s): To describe management and outcomes of a signature perinatal LQTS presentation.
Method(s): This is an ongoing retrospective study currently involving 11 centers. Patients were included for in utero or neonatal (<30 days) TdP/AVB. In utero TdP was diagnosed by fMCG or echocardiographic suspicion of TdP followed by postnatal LQTS confirmation. Cardiac events were appropriate ICD discharge, aborted cardiac arrest, or death/transplant.
Result(s): Forty eligible patients were included (14 male; 20 diagnosed in utero, 1 fetal demise). All live births underwent genotyping (15 SCN5A, 8 KCNH2, 5 KCNQ1, 5 CACNA1C, 1 CALM3, 1 KCNE2, 4 negative). Median GA at delivery was 37 weeks (IQR 35, 39) and first postnatal QTc was 625 ms (561, 688). Pre-discharge management was antiarrhythmic drugs in 36, sympathectomy in 7 (6 L, 0 R, 1 bilateral), and cardiac device implantation in 22 (PM 14, ICD 8). Considering all patients, median age at first post-discharge cardiac event was 38 months with further management consisting of sympathectomy (8 L, 1 R) or device implantation (8 PM, 9 ICD). Seizures occurred in 8 patients and significant developmental delay in 10. Nine patients died (6 SCD, 1 status epilepticus, 1 brain death, 1 respiratory failure), and 2 underwent heart transplantation. LQTS genotype strongly correlated with time to first post-discharge event (Figure).
Conclusion(s): Signature LQTS presentation portends high risk for neurologic and cardiac events, especially with SCN5A/CACNA1C genotypes. Such data should be useful to inform future therapeutic strategies. [Figure presented]
Copyright
EMBASE:2002272909
ISSN: 1556-3871
CID: 4007272

A homozygous SCN5A mutation associated with atrial standstill and sudden death

Tan, Reina Bianca; Gando, Ivan; Bu, Lei; Cecchin, Frank; Coetzee, William
BACKGROUND:Atrial standstill is an arrhythmogenic condition characterized by the absence of spontaneous electrical and mechanical atrial activity or in response to stimulation. There are few reported familial cases which have been associated with SCN5A mutations co-segregating with GJA5 or RYR2 however isolated SCN5A mutations are rare. OBJECTIVE:The purpose of this study was to determine the clinical and biophysical consequence of a novel SCN5A mutation identified in a family with progressive atrial standstill and sudden death. METHODS:The family of a sporadic case of congenital atrial standstill underwent genetic screening. Human Embryonic Kidney 293 cells were transfected with wild-type (WT) or mutant SCN5A cDNAs. Biophysical properties were studied using whole-cell using patch clamp methods. RESULTS:A novel homozygous SCN5A mutation, p.V1340L was identified in the proband and her sister. The proband had complete atrial standstill whereas the sister had partial atrial standstill. Heterozygous mutations were identified in the mother, father and brother. All three had normal sinus rhythm and were asymptomatic. The mutant Nav1.5(V1340L) reduced Nav1.5 current density as well as showed a depolarizing shift in the voltage-dependent steady-state activation (WT: -35.3±1.62 mV; V1340L: -22.4±2.59 mV; P = 0.001). CONCLUSIONS:A homozygous loss-of-function SCN5A mutation likely results in atrial standstill and sudden death due to suppression of initiation of action potential.
PMID: 29781517
ISSN: 1540-8159
CID: 3129702

Population-Based Mathematical Modeling to Deduce Disease-Causing Cardiac Na+ Channel Gating Defects [Meeting Abstract]

Campana, Chiara; Gando, Ivan; Tan, Reina Bianca; Cecchin, Frank; Coetzee, William A.; Sobie, Eric A.
ISI:000430563300167
ISSN: 0006-3495
CID: 3084792

Rise in defibrillation threshold after postoperative cardiac remodeling in a patient with severe Ebstein's anomaly

Tan, Reina Bianca; Love, Charles; Halpern, Dan; Cecchin, Frank
PMCID:5469315
PMID: 28649502
ISSN: 2214-0271
CID: 2609622

Complexity of ranolazine and phenytoin use in an infant with long QT syndrome type 3

Tan, Reina Bianca; Chakravarti, Sujata; Busovsky-McNeal, Melissa; Walsh, Abigail; Cecchin, Frank
PMCID:5420044
PMID: 28491780
ISSN: 2214-0271
CID: 2549092

PREVALENCE AND IMPACT OF DIASTOLIC DYSFUNCTION IN INFANTS AFTER REPAIR OF AORTIC COARCTATION [Meeting Abstract]

Chakravarti, Sujata; Tan, Reina; Bhatla, Puneet
ISI:000374778400113
ISSN: 0090-3493
CID: 3319682

A novel technique of single patch repair of right partial anomalous pulmonary venous return to the superior vena cava by right atrial edge rotation

Reyes, Karl G; Tan, Reina Bianca M; Reyes, Karen G
In patients with partial anomalous pulmonary venous return of the right superior pulmonary veins to the superior vena cava, surgical repair generally consists of either intraatrial baffle with or without caval enlargement, or superior caval transection and cavoatrial anastomosis to the right atrial appendage. We discuss here a novel technique of superior caval enlargement without need for patch material or reimplantation.
PMID: 24792287
ISSN: 1552-6259
CID: 3319672