1
|
Goldstein SA, Ward CC, Al-Khatib SM. The Use of Implantable Cardioverter-defibrillators in the Prevention of Sudden Cardiac Death: A Focus on Congenital Heart Disease and Inherited Arrhythmia Syndromes. J Innov Card Rhythm Manag 2018; 9:2996-3005. [PMID: 32494470 PMCID: PMC7252881 DOI: 10.19102/icrm.2018.090103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 08/23/2017] [Indexed: 12/18/2022] Open
Abstract
Some congenital heart diseases (CHDs) and inherited arrhythmia syndromes are associated with an increased risk of sudden cardiac death (SCD). Appropriate selection criteria for implantable cardioverter-defibrillator (ICD) implantation in these patients are poorly defined due to a paucity of data available from randomized clinical trials, leading to current guidelines relying more on non-randomized studies and expert opinions to make their recommendations. This review describes available evidence-based risk stratification methods for identifying patients at risk for SCD, as well as current guideline-driven management strategies for the use of ICDs in patients with CHD and inherited arrhythmia syndromes.
Collapse
Affiliation(s)
| | - Cary C Ward
- Division of Cardiology, Duke University Hospital, Durham, NC, USA.,Duke Clinical Research Institute, Duke University Hospital, Durham, NC, USA
| | - Sana M Al-Khatib
- Division of Cardiology, Duke University Hospital, Durham, NC, USA.,Duke Clinical Research Institute, Duke University Hospital, Durham, NC, USA
| |
Collapse
|
2
|
Benítez Ramos DB, Cabrera Ortega M, Castro Hevia J, Dorantes Sánchez M, Alemán Fernández AA, Castañeda Chirino O, Cruz Cardentey M, Martínez López F, Falcón Rodríguez R. Electrocardiographic Markers of Appropriate Implantable Cardioverter-Defibrillator Therapy in Young People with Congenital Heart Diseases. Pediatr Cardiol 2017; 38:1663-1671. [PMID: 28871362 DOI: 10.1007/s00246-017-1711-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/09/2017] [Indexed: 11/24/2022]
Abstract
Implantable cardioverter-defibrillators (ICDs) are increasingly utilized in patients with congenital heart disease (CHD). Prediction of the occurrence of shocks is important if improved patient selection is desired. The electrocardiogram (ECG) has been the first-line tool predicting the risk of sudden death, but data in CHD patients are lacking. We aim to evaluate the predictive value of electrocardiographic markers of appropriate therapy of ICD in young people with CHD. We conducted a prospective, longitudinal study, in twenty-six CHD patients (mean age 24.7 ± 5.3 years) who underwent first ICD implantation. Forty-two age- and diagnosis-matched controls were recruited. Twelve-lead ECG and 24 h Holter analysis were performed during a mean follow-up of 38.9 months. Data included heart rate, heart rate variability, QRS duration (QRSd), QTc interval and its dispersion, Tpeak-Tend (Tp-Te) interval and its dispersion, presence of fragmented QRS (fQRS), T wave alternans, atrial arrhythmias, and non-sustained ventricular tachycardia. Implant indication was primary prevention in ten cases (38.5%) and secondary prevention in 16 (61.5%). Overall, 17 subjects (65.3%) received at least one appropriate and effective ICD discharge. fQRS was present in 64.7% of cases with ICD therapy compared with patients without events or controls (p < 0.0001). Tp-e and Tp-e dispersion were significantly prolonged in patients with recurrences (113.5 and 37.2 ms) versus patients without ICD discharge (89.6 and 24.1 ms) or controls (72.4 and 19.3 ms) (p < 0.0001 and p < 0.0001, respectively). On univariate Cox regression analysis QRSd (hazard ratio: 1.19 per ms, p = 0.003), QTc dispersion (hazard ratio: 1.57 per ms, p = 0.002), fQRS (hazard ratio: 3.58 p < 0.0001), Tp-e (hazard ratio: 2.27 per ms, p < 0.0001), and Tp-e dispersion (hazard ratio: 4.15 per ms, p < 0.0001), emerged as strong predictors of outcome. On multivariate Cox analysis fQRS, Tp-e and Tp-e dispersion remained in the model. The presence of fQRS, and both Tp-e and Tp-e dispersion are useful ECG tools in daily clinical practice to identify CHD patients at risk for appropriate ICD therapy.
Collapse
MESH Headings
- Adult
- Arrhythmias, Cardiac/diagnosis
- Arrhythmias, Cardiac/etiology
- Arrhythmias, Cardiac/mortality
- Biomarkers
- Cohort Studies
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Defibrillators, Implantable/adverse effects
- Electrocardiography/methods
- Female
- Follow-Up Studies
- Heart Defects, Congenital/complications
- Heart Defects, Congenital/mortality
- Heart Defects, Congenital/therapy
- Humans
- Longitudinal Studies
- Male
- Predictive Value of Tests
- Proportional Hazards Models
- Prospective Studies
- Risk Factors
- Survival Analysis
- Young Adult
Collapse
Affiliation(s)
- Dunia Bárbara Benítez Ramos
- Department of Pediatric Cardiology, Cardiocentro Pediátrico William Soler, San Francisco e/100 y Perla, Altahabana, Boyeros, Havana, 10800, Cuba.
| | - Michel Cabrera Ortega
- Section of Arrhythmia and Cardiac Pacing, Cardiocentro Pediátrico William Soler, 100 y Perla, Altahabana, Boyeros, Havana, Cuba
| | - Jesús Castro Hevia
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Margarita Dorantes Sánchez
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Ailema Amelia Alemán Fernández
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Osmin Castañeda Chirino
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Marlenis Cruz Cardentey
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Frank Martínez López
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| | - Roylan Falcón Rodríguez
- Service of Arrhythmia and Cardiac Pacing, Instituto de Cardiología y Cirugía Cardiovascular, 17 y Paseo, Plaza de la Revolución, Vedado, Havana, Cuba
| |
Collapse
|
3
|
Nagiub M, Carter K, Shepard R. Systematic review of risk stratification of pediatric ventricular arrhythmia in structurally normal and abnormal hearts. PROGRESS IN PEDIATRIC CARDIOLOGY 2017. [DOI: 10.1016/j.ppedcard.2017.02.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
4
|
Motoki N, Akazawa Y, Yamazaki S, Hachiya A, Motoki H, Matsuzaki S, Koike K. Prognostic Significance of QT Interval Dispersion in the Response to Intravenous Immunoglobulin Therapy in Kawasaki Disease. Circ J 2017; 81:537-542. [PMID: 28154289 DOI: 10.1253/circj.cj-16-0864] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Kawasaki disease (KD) is classified as a systemic vasculitis syndrome and QT interval dispersion (QTD) has been associated with cardiac involvement and disease activity in patients with cardiovasculitis. We examined whether baseline QTD could predict a response to intravenous immunoglobulin (IVIG) in KD.Methods and Results:QTD was recorded in 86 patients with KD before IVIG, who were separated into IVIG responders (R group; n=62) and nonresponders (N group; n=24). The association between baseline QTD and response to IVIG was investigated, and the predictive response value was compared with conventional risk scores from Gunma and Kurume universities. Baseline-corrected QTDs with Bazett's (QTbcD) and Fridericia's (QTfcD) formulae were significantly increased in the N group (R group vs. N group: 31.6 [28.3, 44.0] ms vs. 66.6 [50.5, 76.3] ms and 27.4 [25.2, 39.1] ms vs. 55.2 [42.4, 66.3] ms, respectively, both P<0.001). Multiple logistic regression analysis revealed QTfcD as an independent predictor of a response to IVIG after adjustment for conventional scores (odds ratio: 1.133, 95% confidence interval: 1.061-1.210, P<0.001). Moreover, QTfcD provided incremental predictive value for IVIG nonresponders over Gunma score (increment in global χ2=25.46, P<0.001). CONCLUSIONS QTD was significantly associated with a response to IVIG in KD patients and may represent a useful identifier of IVIG nonresponders with high risk of coronary aneurysm.
Collapse
Affiliation(s)
- Noriko Motoki
- Department of Pediatrics, Shinshu University School of Medicine
| | | | | | | | | | | | | |
Collapse
|
5
|
Evaluation of cardiac electrophysiological properties in an experimental model of right ventricular hypertrophy and failure. Cardiol Young 2016; 26:451-8. [PMID: 25872028 DOI: 10.1017/s1047951115000402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Malignant arrhythmias are a major cause of sudden cardiac death in adults with congenital heart disease. We developed a model to serially investigate electrophysiological properties in an animal model of right ventricular hypertrophy and failure. METHOD We created models of compensated (cHF; n=11) and decompensated (dHF; n=11) right ventricular failure in Wistar rats by pulmonary trunk banding. Healthy controls underwent sham operation (Control; n=13). Surface electrocardiography was recorded from extremities, and inducibility of ventricular tachycardia was evaluated in vivo by programmed stimulation. Isolated right ventricular myocardium was analysed for mRNA expression of selected genes. RESULTS Banding caused an increased mRNA expression of both connexin 43 and the voltage-gated sodium channel 1.5, as well as a prolongation of PQ, QRS and QTc intervals. Ventricular tachycardia was induced in the majority of banded animals compared with none in the healthy control group. No differences were found between the two degrees of failure in neither the electrophysiological parameters nor inducibility. CONCLUSIONS The electrophysiological properties of rat hearts subjected to pulmonary trunk banding were significantly changed with increased susceptibility to ventricular tachycardia, but no differences were found between compensated and decompensated right ventricular failure. Furthermore, we demonstrate that in vivo electrophysiological evaluation is a sensitive method to characterise the cardiac electric phenotype in an experimental rat model.
Collapse
|
6
|
Ruckdeschel ES, Schuller J, Nguyen DT. Ventricular Tachycardia in Congenital Pulmonary Stenosis. Card Electrophysiol Clin 2016; 8:205-209. [PMID: 26920196 DOI: 10.1016/j.ccep.2015.10.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
With modern surgical techniques, there is significantly increased life expectancy for those with congenital heart disease. Although congenital pulmonary valve stenosis is not as complex as tetralogy of Fallot, there are many similarities between the 2 lesions, such that patients with either of these conditions are at risk for ventricular arrhythmias and sudden cardiac death. Those patients who have undergone surgical palliation for congenital pulmonary stenosis are at an increased risk for development of ventricular arrhythmias and may benefit from a more aggressive evaluation for symptoms of palpitations or syncope.
Collapse
Affiliation(s)
| | - Joseph Schuller
- Cardiology Division, University of Colorado, Denver, Aurora, CO, USA
| | - Duy Thai Nguyen
- Cardiology Division, University of Colorado, Denver, Aurora, CO, USA.
| |
Collapse
|
7
|
Ono S, Ohuchi H, Miyazaki A, Abe T, Kiso K, Yamada O. Heterogeneity of Ventricular Sympathetic Nervous Activity is Associated with Clinically Relevant Ventricular Arrhythmia in Postoperative Patients with Tetralogy of Fallot. Pediatr Cardiol 2015; 36:1515-22. [PMID: 25981565 DOI: 10.1007/s00246-015-1195-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 05/06/2015] [Indexed: 12/29/2022]
Abstract
This study aimed to clarify whether there is an association between ventricular sympathetic nervous activity (SNA) and clinically relevant ventricular arrhythmia (a run of ≥ 3 consecutive ventricular beats, RVA) in postoperative patients with tetralogy of Fallot (TOF). We performed a retrospective study in a national referral center of pediatric cardiology in Japan. Twenty-four postoperative TOF patients (13 males, median age 17 years) undergoing myocardial (123)I metaiodobenzylguanidine (MIBG) scintigraphy were included. We measured the heart-to-mediastinum ratio (HMR) and washout ratio (WR) from planar MIBG myocardial scintigraphy. Tomographic images and polar maps were generated with 20 segments. The standard deviation of percentage uptake of 20 segments (SD-uptake) as an index of heterogeneous MIBG uptake to the ventricular myocardium was calculated. We compared these MIBG-derived variables with the patients' clinical profiles, including ECG findings and hemodynamics. Eight of 24 patients had RVA (RVA group), and the other 16 did not have RVA (non-RVA group). There were no significant differences in the HMR (1.9 ± 0.5 vs. 2.2 ± 0.4) and WR (50 ± 5 vs. 42 ± 10) between the two groups. SD-uptake was significantly higher in the RVA group than in the non-RVA group (15 ± 3 vs. 12 ± 3, p = 0.03). QT dispersion (ms) was also higher in the RVA group than in the non-RVA group (53 ± 23 vs. 44 ± 18, p = 0.04). Multivariate logistic regression showed that SD-uptake and QT dispersion were independent predictors in the RVA group (p = 0.02, p = 0.03). In addition to greater QT dispersion, heterogeneous SNA is associated with RVA in TOF patients postoperatively.
Collapse
Affiliation(s)
- Shin Ono
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Hideo Ohuchi
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan.
| | - Aya Miyazaki
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Tadaaki Abe
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| | - Keisuke Kiso
- Department of Radiology, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Osamu Yamada
- Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, Osaka, 565-8565, Japan
| |
Collapse
|
8
|
Khairy P, Van Hare GF, Balaji S, Berul CI, Cecchin F, Cohen MI, Daniels CJ, Deal BJ, Dearani JA, Groot ND, Dubin AM, Harris L, Janousek J, Kanter RJ, Karpawich PP, Perry JC, Seslar SP, Shah MJ, Silka MJ, Triedman JK, Walsh EP, Warnes CA. PACES/HRS expert consensus statement on the recognition and management of arrhythmias in adult congenital heart disease: developed in partnership between the Pediatric and Congenital Electrophysiology Society (PACES) and the Heart Rhythm Society (HRS). Endorsed by the governing bodies of PACES, HRS, the American College of Cardiology (ACC), the American Heart Association (AHA), the European Heart Rhythm Association (EHRA), the Canadian Heart Rhythm Society (CHRS), and the International Society for Adult Congenital Heart Disease (ISACHD). Can J Cardiol 2014; 30:e1-e63. [PMID: 25262867 DOI: 10.1016/j.cjca.2014.09.002] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
|
9
|
Walsh EP. Sudden death in adult congenital heart disease: Risk stratification in 2014. Heart Rhythm 2014; 11:1735-42. [DOI: 10.1016/j.hrthm.2014.07.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Indexed: 10/25/2022]
|
10
|
Chinushi M, Saitou O, Furushima H. Radiofrequency catheter ablation of macroreentrant ventricular tachycardia after corrective surgery for tetralogy of Fallot. J Arrhythm 2014. [DOI: 10.1016/j.joa.2014.02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
|
11
|
Khairy P, Van Hare GF, Balaji S, Berul CI, Cecchin F, Cohen MI, Daniels CJ, Deal BJ, Dearani JA, Groot ND, Dubin AM, Harris L, Janousek J, Kanter RJ, Karpawich PP, Perry JC, Seslar SP, Shah MJ, Silka MJ, Triedman JK, Walsh EP, Warnes CA. PACES/HRS Expert Consensus Statement on the Recognition and Management of Arrhythmias in Adult Congenital Heart Disease: developed in partnership between the Pediatric and Congenital Electrophysiology Society (PACES) and the Heart Rhythm Society (HRS). Endorsed by the governing bodies of PACES, HRS, the American College of Cardiology (ACC), the American Heart Association (AHA), the European Heart Rhythm Association (EHRA), the Canadian Heart Rhythm Society (CHRS), and the International Society for Adult Congenital Heart Disease (ISACHD). Heart Rhythm 2014; 11:e102-65. [PMID: 24814377 DOI: 10.1016/j.hrthm.2014.05.009] [Citation(s) in RCA: 380] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Indexed: 02/07/2023]
|
12
|
Le Gloan L, Guerin P, Mercier LA, Abbey S, Dore A, Marcotte F, Ibrahim R, Poirier NC, Khairy P. Clinical assessment of arrhythmias in tetralogy of Fallot. Expert Rev Cardiovasc Ther 2014; 8:189-97. [DOI: 10.1586/erc.09.156] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
13
|
Yap SC, Harris L. Sudden cardiac death in adults with congenital heart disease. Expert Rev Cardiovasc Ther 2014; 7:1605-20. [DOI: 10.1586/erc.09.153] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
14
|
Sherwin ED, Triedman JK, Walsh EP. Update on interventional electrophysiology in congenital heart disease: evolving solutions for complex hearts. Circ Arrhythm Electrophysiol 2013; 6:1032-40. [PMID: 24129205 DOI: 10.1161/circep.113.000313] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Elizabeth D Sherwin
- Division of Cardiology, British Columbia Children's Hospital, Vancouver, British Columbia, Canada
| | | | | |
Collapse
|
15
|
Arya S, Kovach J, Singh H, Karpawich PP. Arrhythmias and Sudden Death among Older Children and Young Adults Following Tetralogy of Fallot Repair in the Current Era: Are Previously Reported Risk Factors Still Applicable? CONGENIT HEART DIS 2013; 9:407-14. [DOI: 10.1111/chd.12153] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/01/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Swati Arya
- Section of Pediatric Cardiology; Carmen and Ann Adams Department of Pediatrics; The Children's Hospital of Michigan; Wayne State University School of Medicine; Detroit Mich USA
| | - Julie Kovach
- Section of Pediatric Cardiology; Carmen and Ann Adams Department of Pediatrics; The Children's Hospital of Michigan; Wayne State University School of Medicine; Detroit Mich USA
| | - Harinder Singh
- Section of Pediatric Cardiology; Carmen and Ann Adams Department of Pediatrics; The Children's Hospital of Michigan; Wayne State University School of Medicine; Detroit Mich USA
| | - Peter P. Karpawich
- Section of Pediatric Cardiology; Carmen and Ann Adams Department of Pediatrics; The Children's Hospital of Michigan; Wayne State University School of Medicine; Detroit Mich USA
| |
Collapse
|
16
|
Moore JP, Seki A, Shannon KM, Mandapati R, Tung R, Fishbein MC. Characterization of Anatomic Ventricular Tachycardia Isthmus Pathology After Surgical Repair of Tetralogy of Fallot. Circ Arrhythm Electrophysiol 2013; 6:905-11. [DOI: 10.1161/circep.113.000450] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background—
Although catheter ablation has been used to target the critical isthmuses for re-entrant monomorphic ventricular tachycardia in tetralogy of Fallot, the anatomy and histology of these regions have not been fully characterized. Autopsy hearts with tetralogy of Fallot were evaluated to clarify the pathological substrate.
Methods and Results—
Twenty-seven hearts with the diagnosis of tetralogy of Fallot were examined. Anatomically defined isthmuses included (1A) ventriculotomy-to-tricuspid annulus, (1B) ventriculotomy-to-ventricular septal defect patch, (2) ventriculotomy-to-pulmonary annulus, (3) pulmonary annulus-to-ventricular septal defect patch, and (4) ventricular septal defect patch-to-tricuspid annulus. Length and wall thickness were measured for all specimens, and light microscopy was performed for those surviving surgery. For subjects ≥5 years at death, isthmuses 1A and 1B were present in 88%, isthmus 2 in 25%, isthmus 3 in 94%, and isthmus 4 in 13%. Isthmus 1A had the greatest dimensions (mean length, 3.9±1.08; thickness, 1.5±0.3 cm), isthmus 1B intermediate dimensions (mean length, 2.4±0.8; thickness, 1.1±0.4 cm), and isthmuses 2, 3, and 4 the smallest dimensions (mean length, 1.5±0.5, 1.4±0.8, and 0.6±0.4 cm; thickness, 0.5±0.2, 0.6±0.2, and 0.3±0.04 cm, respectively). Histological examination (n=7) revealed increased fibrosis in anatomic isthmuses relative to nonisthmus controls.
Conclusions—
Consistencies in isthmus dimensions and histology are found among patients with repaired tetralogy of Fallot. Isthmus 1A is associated with the largest morphological dimensions, whereas the nearby newly described isthmus 1B is significantly smaller. Of isthmuses with the smallest dimensions, isthmus 3 is the most common.
Collapse
Affiliation(s)
- Jeremy P. Moore
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| | - Atsuko Seki
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| | - Kevin M. Shannon
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| | - Ravi Mandapati
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| | - Roderick Tung
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| | - Michael C. Fishbein
- From the Department of Pediatric Cardiology, UCLA Medical Center (J.P.M., K.M.S.), Department of Pathology and Laboratory Medicine, David Geffen School of Medicine (A.S., M.C.F.), UCLA Cardiac Arrhythmia Center, UCLA Health System (R.M., R.T.), University of California at Los Angeles, CA; and Department of Pediatric Cardiology, Loma Linda University Medical Center, CA (R.M.)
| |
Collapse
|
17
|
Daliento L, Cecchetto A, Bagato F, Dal Bianco L. A new view on congenital heart disease: clinical burden prevision of changing patients. J Cardiovasc Med (Hagerstown) 2011; 12:487-92. [DOI: 10.2459/jcm.0b013e32834743cf] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
18
|
Motoki N, Shimizu T, Akazawa Y, Saito S, Tanaka M, Yanagisawa R, Motoki H, Nakazawa Y, Sakashita K, Iwasaki Y, Shiohara M, Koike K. Increased pretransplant QT dispersion as a risk factor for the development of cardiac complications during and after preparative conditioning for pediatric allogeneic hematopoietic stem cell transplantation. Pediatr Transplant 2010; 14:986-92. [PMID: 21108706 DOI: 10.1111/j.1399-3046.2010.01389.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although cardiac complications are some of the most serious complications of HSCT for leukemia, it is difficult to predict them. QTD has been reported as a predictor of heart failure and fatal arrhythmia in adults. The purpose of this study is to examine whether QTD predicts cardiac complications in pediatric HSCT. Eighteen patients (mean age, 6.9 yr; 11 ALL and seven AML) underwent high-dose cyclophosphamide treatment and total body irradiation as preparative conditioning for HSCT. QTD, QTcD, echocardiographic functional parameters, and cumulative anthracycline dose were evaluated. We compared these values between patients with and without cardiac complications. Among 18 patients, seven patients experienced cardiac complications (heart failure in four, arrhythmia in three). There were significant differences in QTD (43.7 ms in patients with cardiac complications vs. 30.2 ms in patients without the complications, p = 0.019) and QTcD (55.3 vs. 36.9 ms, p = 0.003) between the two groups. On the other hand, the cumulative dose of anthracycline and echocardiographic parameters were not significantly different between the two groups. Increases in QTD and QTcD during the pretreatment period may be risk factors for the development of cardiac complications during and after conditioning for pediatric HSCT.
Collapse
Affiliation(s)
- Noriko Motoki
- Department of Pediatrics, Shinshu University School of Medicine, Matsumoto Department of Pediatrics, Nagano National Hospital, Ueda, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Warnes CA, Williams RG, Bashore TM, Child JS, Connolly HM, Dearani JA, Del Nido P, Fasules JW, Graham TP, Hijazi ZM, Hunt SA, King ME, Landzberg MJ, Miner PD, Radford MJ, Walsh EP, Webb GD. ACC/AHA 2008 guidelines for the management of adults with congenital heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Develop Guidelines on the Management of Adults With Congenital Heart Disease). Developed in Collaboration With the American Society of Echocardiography, Heart Rhythm Society, International Society for Adult Congenital Heart Disease, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. J Am Coll Cardiol 2009; 52:e143-e263. [PMID: 19038677 DOI: 10.1016/j.jacc.2008.10.001] [Citation(s) in RCA: 977] [Impact Index Per Article: 65.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
20
|
Warnes CA, Williams RG, Bashore TM, Child JS, Connolly HM, Dearani JA, del Nido P, Fasules JW, Graham TP, Hijazi ZM, Hunt SA, King ME, Landzberg MJ, Miner PD, Radford MJ, Walsh EP, Webb GD. ACC/AHA 2008 Guidelines for the Management of Adults With Congenital Heart Disease. Circulation 2008; 118:e714-833. [PMID: 18997169 DOI: 10.1161/circulationaha.108.190690] [Citation(s) in RCA: 628] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Çetin İ, Tokel K, Varan B, Örün UA, Gökdemir M, Cındık N, Eyüboğlu F, Ulubay G, Aşlamacı S. Evaluation of Right Ventricular Functions and B-Type Natriuretic Peptide Levels by Cardiopulmonary Exercise Test in Patients with Pulmonary Regurgitation After Repair of Tetralogy of Fallot. J Card Surg 2008; 23:493-8. [DOI: 10.1111/j.1540-8191.2008.00634.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
22
|
Affiliation(s)
- Edward P Walsh
- Electrophysiology Division, Department of Cardiology, Children's Hospital Boston, 300 Longwood Ave, Boston, MA 02115, USA.
| | | |
Collapse
|
23
|
Grown-up congenital heart disease: The problem of late arrhythmia and ventricular dysfunction. PROGRESS IN PEDIATRIC CARDIOLOGY 2006. [DOI: 10.1016/j.ppedcard.2006.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
24
|
Geva T. Indications and timing of pulmonary valve replacement after tetralogy of Fallot repair. Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2006:11-22. [PMID: 16638542 DOI: 10.1053/j.pcsu.2006.02.009] [Citation(s) in RCA: 173] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Surgical management of tetralogy of Fallot results in anatomic and functional abnormalities in the majority of patients. Although right ventricular volume load due to severe pulmonary regurgitation can be tolerated for years, there is now evidence that the compensatory mechanisms of the right ventricular myocardium ultimately fail and that if the volume load is not eliminated or reduced the dysfunction might be irreversible. In light of that data and with better understanding of risk factors for adverse outcomes late after tetralogy of Fallot repair, many centers are now recommending early pulmonary valve replacement before symptoms of heart failure develop. This article reviews the pathophysiology of chronic right ventricular volume load after tetralogy of Fallot repair and the risks and benefits of pulmonary valve replacement. Finally, recommendations for timing and indications for pulmonary valve replacement are given.
Collapse
Affiliation(s)
- Tal Geva
- Department of Cardiology, Children's Hospital Boston, Boston, MA 02115, USA.
| |
Collapse
|
25
|
Folino AF, Daliento L. Arrhythmias after tetralogy of fallot repair. Indian Pacing Electrophysiol J 2005; 5:312-24. [PMID: 16943881 PMCID: PMC1431606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Tetralogy of Fallot is the most common cyanotic congenital heart disease, with a good outcome after total surgical correction. In spite of a low perioperative mortality and a good quality of life, late sudden death remains a significant clinical problem, mainly related to episodes of sustained ventricular tachycardia and ventricular fibrillation. Fibro-fatty substitution around infundibular resection, intraventricular septal scar, and patchy myocardial fibrosis, may provide anatomical substrates of abnormal depolarization and repolarization causing reentrant ventricular arrhythmias. Several non-invasive indices based on classical examination such as ECG, signal-averaging ECG, and echocardiography have been proposed to identify patients at high risk of sudden death, with hopeful results. In the last years other more sophisticated invasive and non-invasive tools, such as heart rate variability, electroanatomic mapping and cardiac magnetic resonance added a relevant contribution to risk stratification. Even if each method per se is affected by some limitations, a comprehensive multifactorial clinical and investigative examination can provide an accurate risk evaluation for every patient.
Collapse
|
26
|
Russo G, Folino AF, Mazzotti E, Rebellato L, Daliento L. Comparison Between QRS Duration at Standard ECG and Signal-Averaging ECG for Arrhythmic Risk Stratification After Surgical Repair of Tetralogy of Fallot. J Cardiovasc Electrophysiol 2005; 16:288-92. [PMID: 15817088 DOI: 10.1046/j.1540-8167.2005.40312.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Surgical repair of tetralogy of Fallot is complicated by the occurrence of ventricular tachycardia (VT). Among different indexes proposed to assess prognosis of these patients, the study of QRS and repolarization provided useful information. Controversial results come from the analysis of signal-averaging ECG (SAECG). The aim of our study was to identify patients operated for tetralogy of Fallot at higher risk of sudden death by means of SAECG. METHODS AND RESULTS Sixty-six consecutive patients, mean age 26 +/- 10 years, were studied 17.7 +/- 5.8 years after total correction for tetralogy of Fallot using standard ECG, 24-hour Holter recordings, SAECG, and echocardiography. The following variables were measured: standard QRS duration, filtered QRS duration (fQRS), high-frequency and low-amplitude signal duration (HFLA), root mean square of the mean voltage in the terminal portion of filtered QRS (RMS), left and right end-diastolic volumes, and ejection fractions. During a mean follow-up period of 7.3 +/- 3.1 years, 12 patients had episodes of sustained VT and two of them suddenly died. All patients had complete right bundle branch block. Patients with VT were characterized by a significantly longer fQRS duration at all filter settings. On the contrary, there was no difference in standard QRS duration in patients with or without VT. At a multivariate analysis, left ventricular ejection fraction and fQRS were independent predictors for VT. CONCLUSIONS A longer fQRS duration is associated with an increased risk in developing malignant ventricular arrhythmias in asymptomatic patients after total correction of tetralogy of Fallot.
Collapse
Affiliation(s)
- Giulia Russo
- Department of Cardiology, University of Padua, Padua, Italy
| | | | | | | | | |
Collapse
|
27
|
van Huysduynen BH, van Straten A, Swenne CA, Maan AC, van Eck HJR, Schalij MJ, van der Wall EE, de Roos A, Hazekamp MG, Vliegen HW. Reduction of QRS duration after pulmonary valve replacement in adult Fallot patients is related to reduction of right ventricular volume. Eur Heart J 2005; 26:928-32. [PMID: 15716288 DOI: 10.1093/eurheartj/ehi140] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
AIMS Late after total correction, Fallot patients with a long QRS duration are prone to serious arrhythmias and sudden cardiac death. Pulmonary regurgitation is a common cause of right ventricular (RV) failure and QRS lengthening. We studied the effects of pulmonary valve replacement (PVR) on QRS duration and RV volume. METHODS AND RESULTS Twenty-six consecutive Fallot patients were evaluated both pre-operatively and 6-12 months post-operatively by cardiac magnetic resonance (CMR). In this study, we present the computer-assisted analysis of the standard 12-lead electrocardiograms closest in time to the CMR studies. For the whole group, QRS duration shortened by 6+/-8 ms, from 151+/-30 to 144+/-29 ms (P=0.002). QRS duration decreased in 18 of 26 patients by 10+/-6 ms, from 152+/-32 to 142+/-31 ms. QRS duration remained constant or increased slightly in eight of 26 patients by 3+/-3 ms, from 148+/-27 to 151+/-25 ms. CMR showed a decrease in RV end-diastolic volume from 305+/-87 to 210+/-62 mL (P=0.000004). QRS duration changes correlated with RV end-diastolic volume changes (r=0.54, P=0.01). CONCLUSION Our study shows that PVR reduces QRS duration. The amount of QRS reduction is related to the success of the operation, as expressed by the reduction in RV end-diastolic volume.
Collapse
Affiliation(s)
- Bart Hooft van Huysduynen
- Department of Cardiology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Health related quality of life in adults with repaired tetralogy of Fallot: psychosocial and cognitive outcomes. Heart 2005; 91:213-8. [PMID: 15657236 DOI: 10.1136/hrt.2003.029280] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To assess the health related quality of life of patients who were operated on during childhood for total correction of tetralogy of Fallot, focusing on the psychosocial and cognitive outcomes. PATIENTS 54 patients (24 men and 30 women, mean (SD) age 32 (4) years), operated on for total correction of tetralogy of Fallot at mean age of 8.2 years, underwent a cardiological examination, psychological assessment (semistructured interview, Minnesota multiphasic personality inventory), evaluation of quality of life (36 item short form health survey), and neuropsychological assessment with an extensive neuropsychological battery of tests. RESULTS Psychological characteristics-(1) a lower than normal academic level, (2) a job inadequate for educational level, (3) a preference for an overprotective familiar setting, and (4) a difficulty communicating own corporal image. Denial of the cardiopathy was found to be a common behaviour to normalise functioning. Very few patients had a deficit in memory, learning, or attention functions; rather, patients had a deficit in the executive functions, problem solving, and planning strategies. CONCLUSIONS Despite a satisfactory health related quality of life, there are residual psychological and social problems in addition to impaired cognitive outcomes in the presence of a normal intelligence quotient.
Collapse
|
29
|
Folino AF, Russo G, Bauce B, Mazzotti E, Daliento L. Autonomic profile and arrhythmic risk stratification after surgical repair of tetralogy of Fallot. Am Heart J 2004; 148:985-9. [PMID: 15632882 DOI: 10.1016/j.ahj.2004.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Severe ventricular arrhythmias represent one of the main causes of mortality after repair of tetralogy of Fallot. Their appearance is primarily caused by the large ventricular scar created by surgical intervention. However, the role of autonomic activity as a modulating factor should be considered. The aim of our study was to evaluate this activity in a low-risk group of patients operated on for TOF and its correlation with the occurrence of sustained ventricular tachycardia. METHODS AND RESULTS The study group included 38 patients with a mean age of 31 +/- 10 years, selected out of 76 subjects operated on for total correction of tetralogy of Fallot. After a mean interval of 21.9 +/- 6 years from surgical procedure, they underwent electrocardiography, echocardiography, and time domain heart rate variability (HRV) analysis obtained by 24-hour Holter monitoring. Thirty-five healthy subjects comprised the control group for HRV analysis. During a mean follow-up of 6.2 +/- 3 years, 8 patients experienced episodes of sustained ventricular tachycardia. Among different HRV parameters, the standard deviation of all normal beat intervals showed a significant reduction in this group of patients (91.7 +/- 19 versus 133.4 +/- 46, P < .02). Echocardiographic examination demonstrated an increased left ventricular end diastolic volume (85.6 +/- 55 versus 61.3 +/- 13 mL/m(2), P < .05) and a reduced left ventricle ejection fraction (53.9 +/- 9 versus 61.0 +/- 6 %, P < .01) in arrhythmic patients. QRS duration was similar in patients with or without sustained ventricular tachycardia. CONCLUSIONS Patients after surgical correction of tetralogy of Fallot, considered to be at low risk, showed a significant incidence of severe ventricular arrhythmias. HRV analysis seems to be a useful method for identifying arrhythmic patients, and the standard deviation of all normal beat intervals appears to be the more helpful index.
Collapse
|
30
|
Attari M, Dhala A. Role of invasive and noninvasive testing in risk stratification of sudden cardiac death in children and young adults: an electrophysiologic perspective. Pediatr Clin North Am 2004; 51:1355-78. [PMID: 15331288 DOI: 10.1016/j.pcl.2004.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Sudden cardiac death is a rare, but devastating, event in the young population. Arrhythmia is the mechanism of death in many cases. In addition to clinical history, noninvasive and invasive tests can be used to identify patients who are at risk. Although these tools are not perfect, they can prove valuable if used in proper clinical circumstances. An overview of these tests is presented.
Collapse
Affiliation(s)
- Mehran Attari
- Electrophysiology Laboratories, Cardiovascular Disease Section, St. Luke's and Aurora Sinai Medical Centers, University of Wisconsin Medical School-Milwaukee Clinical Campus, 2801 West Kinnickinnic River Parkway, Milwaukee, WI 53215, USA
| | | |
Collapse
|
31
|
Balkhi RA, Beghetti M, Friedli B. Time course of appearance of markers of arrhythmia in patients with tetralogy of Fallot before and after surgery. Cardiol Young 2004; 14:360-6. [PMID: 15680040 DOI: 10.1017/s1047951104004020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Sudden death and ventricular tachycardia are known to occur late after correction of tetralogy of Fallot. Abnormal dispersion of the QT interval, ventricular late potentials, and prolongation of the QRS complex, alone or in combination, are useful markers of the risk for such complications. Our present prospective study investigates the time course of appearance of two markers, dispersion of QT and JT, and ventricular late potentials, before and after corrective surgery. Dispersion of QT and JT, and signal averaged electrocardiographic parameters, were determined sequentially in 20 patients before, a mean of 9 +/- 3 days after, and again 35 +/- 11 days post-operatively. Dispersion of QT was already abnormal before surgery in two-fifths of the patients, but increased markedly in the later post-operative period. Ventricular late potentials were absent before surgery and in the immediate post-operative period, but were found in one-fifth of patients 1 month later. We conclude that abnormal dispersion of QT is, to some extent, a fact of the natural history of tetralogy of Fallot, but is significantly amplified by surgery. Ventricular late potentials, on the other hand, are absent before surgery, but appear with some delay after the operation, probably as a result of scarring rather than the surgical incision itself. Long-term follow-up is needed to assess the significance of these findings.
Collapse
Affiliation(s)
- Rim Al Balkhi
- Paediatric Cardiac Unit, Hôpital des Enfants, Hôpitaux Universitaires, Geneva, Switzerland
| | | | | |
Collapse
|
32
|
Steeds RP, Oakley D. Predicting late sudden death from ventricular arrhythmia in adults following surgical repair of tetralogy of Fallot. QJM 2004; 97:7-13. [PMID: 14702506 DOI: 10.1093/qjmed/hch004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Tetralogy of Fallot was the first complex congenital cardiac defect to undergo open repair. The life expectancy and quality of life of those surviving surgery is now good, although late survival is compromised by the occurrence of sudden death. The emergence of successful methods for both the prevention of arrhythmias (including valve replacements and electrophysiological ablation) and the treatment of arrhythmias when they occur (including implantable defibrillators), has meant the identification of those at risk is of even greater importance. This paper reviews the predictive methods currently available to the practising physician caring for these increasingly common patients.
Collapse
Affiliation(s)
- R P Steeds
- Department of Cardiology, Queen Elizabeth Hospital, Edgbaston, Birmingham, UK.
| | | |
Collapse
|
33
|
Abstract
Arrhythmias are a major cause of morbidity and mortality in adults with congenital heart disease; they can range from occult asymptomatic sinus node disease to sudden death. Detecting and diagnosing these arrhythmias presents a challenge when caring for these patients. A high index of suspicion is necessary, as well as a thorough understanding of the underlying heart defect and subsequent surgical interventions. A careful history, noninvasive evaluation, and in some cases invasive testing are all necessary to determine arrhythmias in this population.
Collapse
Affiliation(s)
- Kathryn K Collins
- Division of Pediatric Cardiology, University of California, 521 Parnassus, C-346, San Francisco, CA 94143, USA.
| | | |
Collapse
|
34
|
Neffke JGJ, Tulevski II, van der Wall EE, Wilde AAM, van Veldhuisen DJ, Dodge-Khatami A, Mulder BJM. ECG determinants in adult patients with chronic right ventricular pressure overload caused by congenital heart disease: relation with plasma neurohormones and MRI parameters. Heart 2002; 88:266-70. [PMID: 12181220 PMCID: PMC1767323 DOI: 10.1136/heart.88.3.266] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To examine retrospectively the changes in ECG parameters over time and their correlation with other quantitative right ventricular (RV) function parameters in patients with chronic RV pressure overload caused by congenital heart disease. METHODS 48 patients with chronic RV pressure overload caused by the following congenital heart diseases were studied: nine with congenitally corrected transposition of the great arteries (TGA), 12 with surgically corrected TGA, and 27 with a subpulmonary pressure overloaded RV. QRS duration and dispersion were measured manually from standard ECG recorded twice within five years. RV end diastolic volume (EDV) and RV mass were determined by magnetic resonance imaging. Brain natriuretic peptide (BNP) plasma concentrations were measured. RESULTS QRS duration and QRS dispersion increased in all patient groups during the follow up period. QRS duration increased significantly in the congenitally corrected TGA (p = 0.04) and the subpulmonary pressure overloaded RV groups (p = 0.01). QRS dispersion increased significantly in patients with surgically corrected TGA (p = 0.03) and in the subpulmonary pressure overloaded RV group (p = 0.02). A significant correlation was found between QRS duration and RVEDV (r = 0.71, p < 0.0001). RV mass was significantly correlated with QRS duration in patients with tetralogy of Fallot (r = 0.67, p = 0.01). Mean (SD) plasma brain natriuretic peptide concentrations (6.6 (5.4) pmol/l) were increased compared with normal reference values but no correlation was found with ECG parameters or RV systolic pressure. No malignant arrhythmia or sudden death occurred. CONCLUSIONS ECG parameters worsened gradually in asymptomatic or minimally symptomatic patients with chronic RV pressure overload, regardless of the nature of their congenital heart disease. In all patients, a significant positive correlation was found between QRS duration and RVEDV. In patients with tetralogy of Fallot there was also a correlation between QRS duration and RV mass.
Collapse
Affiliation(s)
- J G J Neffke
- Department of Cardiology, Academic Medical Centre Amsterdam, Amsterdam, Netherlands
| | | | | | | | | | | | | |
Collapse
|
35
|
Daliento L, Folino AF, Menti L, Zanco P, Baratella MC, Dalla Volta S. Adrenergic nervous activity in patients after surgical correction of tetralogy of Fallot. J Am Coll Cardiol 2001; 38:2043-7. [PMID: 11738313 DOI: 10.1016/s0735-1097(01)01640-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVES The study was done to define the role of the autonomic nervous system in postoperative tetralogy of Fallot. BACKGROUND Subsequent to surgical correction of tetralogy of Fallot, patients are at long-term risk of sudden death owing to ventricular electrical instability. The status of the sympathetic nervous system in these patients, known to play an important role in other patients at risk, remains unknown. METHODS We used (123)I metaiodobenzylguanidine (MIBG) with tomographic imaging, combined with assessment of heart rate variability (HRV), to evaluate the activity of the sympathetic nervous system. We analyzed 22 patients who had undergone total correction of tetralogy of Fallot: 13 with either no or minor ventricular arrhythmias, and 9 with sustained ventricular tachycardia or ventricular fibrillation. RESULTS Analysis of HRV revealed a reduction in vagal control and sympathetic dominance in all patients compared with a healthy control group of 20 subjects. A significant difference was found in the standard deviation of all the adjacent intervals between normal beats (SDNN) in patients with or without severe ventricular arrhythmias. A significant reduction in uptake of (123)I MIBG was demonstrated 30 min after IV injection, and a trend toward reduction after 5 h, associated with reduced washout indices. These data reflect a decrease in the number of nerve endings in the right and left ventricular walls, and an inhomogeneous distribution of the adrenergic nervous system. The uptake of MIBG was significantly reduced in the patients at risk of ventricular tachycardia or fibrillation. CONCLUSIONS Subsequent to surgical correction of tetralogy of Fallot, the positive correlation between myocardial uptake of MIBG, SDNN and the QRS dispersion confirmed the usefulness of analysis of the adrenergic nervous system to stratify patients at risk of life-threatening arrhythmias.
Collapse
MESH Headings
- Adolescent
- Adrenergic Fibers/physiology
- Adult
- Autonomic Nervous System Diseases/mortality
- Autonomic Nervous System Diseases/physiopathology
- Child
- Child, Preschool
- Death, Sudden, Cardiac/epidemiology
- Death, Sudden, Cardiac/etiology
- Echocardiography, Doppler, Color
- Electrocardiography, Ambulatory
- Female
- Heart Rate/physiology
- Humans
- Infant
- Male
- Postoperative Complications/mortality
- Postoperative Complications/physiopathology
- Prognosis
- Risk Factors
- Sympathetic Nervous System/physiopathology
- Tachycardia, Ventricular/mortality
- Tachycardia, Ventricular/physiopathology
- Tetralogy of Fallot/mortality
- Tetralogy of Fallot/physiopathology
- Tetralogy of Fallot/surgery
- Tomography, Emission-Computed, Single-Photon
- Ventricular Fibrillation/mortality
- Ventricular Fibrillation/physiopathology
Collapse
Affiliation(s)
- L Daliento
- Department of Cardiology, University of Padua Medical School, Padua, Italy.
| | | | | | | | | | | |
Collapse
|