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Tanghöj, G., Liuba, P., Sjöberg, G., Rydberg, A. & Naumburg, E. (2019). Adverse events within 1 year after surgical and percutaneous closure of atrial septal defects in preterm children. Cardiology in the Young, 29(5), 626-636
Öppna denna publikation i ny flik eller fönster >>Adverse events within 1 year after surgical and percutaneous closure of atrial septal defects in preterm children
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2019 (Engelska)Ingår i: Cardiology in the Young, ISSN 1047-9511, E-ISSN 1467-1107, Vol. 29, nr 5, s. 626-636Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Introduction: Atrial septal defect is the third most common CHD. A hemodynamically significant atrial septal defect causes volume overload of the right side of the heart. Preterm children may suffer from both pulmonary and cardiac comorbidities, including altered myocardial function. The aim of this study was to compare the rate of adverse events following atrial septal defect closure in preterm- and term-born children.

Method: We performed a retrospective cohort study including children born in Sweden, who had a surgical or percutaneous atrial septal defect closure at the children’s hospitals in Lund and Stockholm, between 2000 and 2014, assessing time to the first event within 1 month or 1 year. We analysed differences in the number of and the time to events between the preterm and term cohort using the Kaplan–Meier survival curve, a generalised model applying zero-inflated Poisson distribution and Gary-Anderson’s method.

Results: Overall, 413 children were included in the study. Of these, 93 (22.5%) were born prematurely. The total number of adverse events was 178 (110 minor and 68 major). There was no difference between the cohorts in the number of events, whether within 1 month or within a year, between major (p = 0.69) and minor (p = 0.84) events or frequencies of multiple events (p = 0.92).

Conclusion: Despite earlier procedural age, larger atrial septal defects, and higher comorbidity than term children, preterm children appear to have comparable risk for complications during the first year after surgical or percutaneous closure.

Ort, förlag, år, upplaga, sidor
Cambridge University Press, 2019
Nyckelord
Child, atrial septal defect, percutaneous closure, surgical closure, complications
Nationell ämneskategori
Kardiologi Pediatrik
Identifikatorer
urn:nbn:se:umu:diva-161607 (URN)10.1017/S1047951119000350 (DOI)000472634800012 ()31159892 (PubMedID)
Tillgänglig från: 2019-07-12 Skapad: 2019-07-12 Senast uppdaterad: 2019-07-12Bibliografiskt granskad
Öhman, A., El-Segaier, M., Bergman, G., Hanséus, K., Malm, T., Nilsson, B., . . . Mellander, M. (2019). Changing Epidemiology of Hypoplastic Left Heart Syndrome: Results of a National Swedish Cohort Study. Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 8(2), Article ID e010893.
Öppna denna publikation i ny flik eller fönster >>Changing Epidemiology of Hypoplastic Left Heart Syndrome: Results of a National Swedish Cohort Study
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2019 (Engelska)Ingår i: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, ISSN 2047-9980, E-ISSN 2047-9980, Vol. 8, nr 2, artikel-id e010893Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background Norwood surgery provides a palliative surgical option for hypoplastic left heart syndrome and has been available in Sweden since 1993. The practice of prenatal ultrasound screening was gradually implemented in the same era, resulting in an increased prenatal detection rate. Our primary aims were to study changes in the incidence of live births, prenatal detection rate, and the termination of pregnancies over time. The secondary aims were to study the proportion of live-borns undergoing surgery and to identify factors that influenced whether surgery was or was not performed. Methods and Results Neonates with hypoplastic left heart syndrome with aortic atresia born 1990-2010 were identified through national databases, surgical files, and medical records. The fetal incidence was estimated from the period when prenatal screening was rudimentary. The study period was divided into the presurgical, early surgical, and late surgical periods. The incidence was calculated as the overall yearly incidence for each time period and sex separately. Factors influencing whether surgery was performed were analyzed using Cox-logistic regression. The incidence at live birth decreased from 15.4 to 8.4 per 100 000. The prenatal detection rate increased from 27% to 63%, and terminations increased from 19% to 56%. The odds of having surgery was higher in the late period and higher in the group with prenatal diagnosis. Conclusions We observed a decrease in incidence of live-borns with hypoplastic left heart syndrome aortic atresia. There was in increase in prenatal detection rate and an increase in termination of pregnancy. The proportion of live-borns who underwent surgery increased between time periods.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2019
Nyckelord
fetal cardiovascular abnomality, fetal echocardiography, hypoplastic left heart syndrome, outcome
Nationell ämneskategori
Kardiologi
Identifikatorer
urn:nbn:se:umu:diva-157603 (URN)10.1161/JAHA.118.010893 (DOI)000460105800018 ()30661430 (PubMedID)
Tillgänglig från: 2019-03-28 Skapad: 2019-03-28 Senast uppdaterad: 2019-03-28Bibliografiskt granskad
Charisopoulou, D., Koulaouzidis, G., Rydberg, A. & Henein, M. (2019). Exercise worsening of electromechanical disturbances: a predictor of arrhythmia in long QT syndrome. Clinical Cardiology, 42(2), 235-240
Öppna denna publikation i ny flik eller fönster >>Exercise worsening of electromechanical disturbances: a predictor of arrhythmia in long QT syndrome
2019 (Engelska)Ingår i: Clinical Cardiology, ISSN 0160-9289, E-ISSN 1932-8737, Vol. 42, nr 2, s. 235-240Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background; Electromechanical (EM) coupling heterogeneity is significant in long QT syndrome (LQTS), particularly in symptomatic patients; EM window (EMW) has been proposed as an indicator of interaction and a better predictor of arrhythmia than QTc. Hypothesis To investigate the dynamic response of EMW to exercise in LQTS and its predictive value of arrhythmia.

Methods: Forty-seven LQTS carriers (45 +/- 15 years, 20 with arrhythmic events), and 35 controls underwent exercise echocardiogram. EMW was measured as the time difference between aortic valve closure on Doppler and the end of QT interval on the superimposed electrocardiogram (ECG). Measurements were obtained at rest, peak exercise (PE) and 4 minutes into recovery.

Results: Patients did not differ in age, gender, heart rate, or left ventricular ejection fraction but had a negative resting EMW compared with controls (-42 +/- 22 vs 17 +/- 5 ms, P < 0.0001). EMW became more negative at PE (-89 +/- 43 vs 16 +/- 7 ms, P = 0.0001) and recovery (-65 +/- 39 vs 16 +/- 6 ms, P = 0.001) in patients, particularly the symptomatic, but remained unchanged in controls. PE EMW was a stronger predictor of arrhythmic events than QTc (AUC:0.765 vs 0.569, P < 0.001). B-blockers did not affect EMW at rest but was less negative at PE (BB: -66 +/- 21 vs no-BB: -113 +/- 25 ms, P < 0.001). LQT1 patients had worse PE EMW negativity than LQT2.

Conclusion: LQTS patients have significantly negative EMW, which worsens with exercise. These changes are more pronounced in patients with documented arrhythmic events and decrease with B-blocker therapy. Thus, EMW assessment during exercise may help improve risk stratification and management of LQTS patients.

Ort, förlag, år, upplaga, sidor
Wiley Periodicals, Inc., 2019
Nyckelord
arrhythmia, electromechanical window, exercise echocardiography, long QT syndrome
Nationell ämneskategori
Kardiologi
Identifikatorer
urn:nbn:se:umu:diva-156883 (URN)10.1002/clc.23132 (DOI)000458424300004 ()30537240 (PubMedID)
Tillgänglig från: 2019-03-11 Skapad: 2019-03-11 Senast uppdaterad: 2019-03-11Bibliografiskt granskad
Hansson, L., Lind, T., Wiklund, U., Öhlund, I. & Rydberg, A. (2019). Fluid restriction negatively affects energy intake and growth in very low birthweight infants with haemodynamically significant patent ductus arteriosus. Acta Paediatrica, 108(11), 1985-1992
Öppna denna publikation i ny flik eller fönster >>Fluid restriction negatively affects energy intake and growth in very low birthweight infants with haemodynamically significant patent ductus arteriosus
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2019 (Engelska)Ingår i: Acta Paediatrica, ISSN 0803-5253, E-ISSN 1651-2227, Vol. 108, nr 11, s. 1985-1992Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Aim: We explored if fluid restriction in very low birthweight (VLBW) infants with a haemodynamically significant patent ductus arteriosus (PDA) affected energy and protein intakes and growth.

Methods: Retrospectively, we identified 90 VLBW infants that were admitted to Umea University Hospital, Sweden, between 2009 and 2012: 42 with and 48 without haemodynamically significant PDA (hsPDA). Anthropometric, fluid, energy and protein intake data during the first 28 days of life were expressed as z‐scores.

Results: In the 42 infants diagnosed with hsPDA, fluid intake was restricted after diagnosis, resulting in a decrease in energy and protein intake. No decrease was observed in the other 48 infants in the cohort. Multivariate analysis showed that the z‐score of weight change depended on both ductus arteriosus status and energy intake; thus, infants with hsPDA did not grow as expected with the energy provided to them.

Conclusion: Energy and protein intake was diminished in prematurely born infants with hsPDA when fluid was restricted after diagnosis. The initial reduction in intakes may have contributed to the lower postnatal growth observed in these infants.

Nyckelord
Fluid restriction, Infant growth, Nutrition, Patent ductus arteriosus, Premature infants
Nationell ämneskategori
Pediatrik
Identifikatorer
urn:nbn:se:umu:diva-165667 (URN)10.1111/apa.14815 (DOI)000489595000009 ()30980416 (PubMedID)
Tillgänglig från: 2019-12-06 Skapad: 2019-12-06 Senast uppdaterad: 2019-12-06Bibliografiskt granskad
Jansweijer, J. A., van Spaendonck-Zwarts, K. Y., Tanck, M. W. T., van Tintelen, J. P., Christiaans, I., van der Smagt, J., . . . Pinto, Y. M. (2019). Heritability in genetic heart disease: the role of genetic background. Open heart, 6(1), Article ID UNSP e000929.
Öppna denna publikation i ny flik eller fönster >>Heritability in genetic heart disease: the role of genetic background
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2019 (Engelska)Ingår i: Open heart, E-ISSN 2053-3624, Vol. 6, nr 1, artikel-id UNSP e000929Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Background: Mutations in genes encoding ion channels or sarcomeric proteins are an important cause of hereditary cardiac disease. However, the severity of the resultant disease varies considerably even among those with an identical mutation. Such clinical variation is often thought to be explained largely by differences in genetic background or ‘modifier genes’. We aimed to test the prediction that identical genetic backgrounds result in largely similar clinical expression of a cardiac disease causing mutation, by studying the clinical expression of mutations causing cardiac disease in monozygotic twins.

Methods: We compared first available clinical information on 46 monozygotic twin pairs and 59 control pairs that had either a hereditary cardiomyopathy or channelopathy.

Results: Despite limited power of this study, we found significant heritability for corrected QT interval (QTc) in long QT syndrome (LQTS). We could not detect significant heritability for structural traits, but found a significant environmental effect on thickness of the interventricular septum in hypertrophic cardiomyopathy.

Conclusions: Our study confirms previously found robust heritability for electrical traits like QTc in LQTS, and adds information on low or lacking heritability for structural traits in heritable cardiomyopathies. This may steer the search for genetic modifiers in heritable cardiac disease.

Ort, förlag, år, upplaga, sidor
BMJ Publishing Group Ltd, 2019
Nationell ämneskategori
Medicinsk genetik
Identifikatorer
urn:nbn:se:umu:diva-161557 (URN)10.1136/openhrt-2018-000929 (DOI)000471922200021 ()31245010 (PubMedID)
Forskningsfinansiär
Novo Nordisk
Tillgänglig från: 2019-07-10 Skapad: 2019-07-10 Senast uppdaterad: 2019-07-10Bibliografiskt granskad
Alenius Dahlqvist, J., Sunnegårdh, J., Hanséus, K., Strömvall Larsson, E., Nygren, A., Dalén, M., . . . Rydberg, A. (2019). Pacemaker treatment after Fontan surgery: a Swedish national study. Congenital Heart Disease, 14(4), 582-589
Öppna denna publikation i ny flik eller fönster >>Pacemaker treatment after Fontan surgery: a Swedish national study
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2019 (Engelska)Ingår i: Congenital Heart Disease, ISSN 1747-079X, E-ISSN 1747-0803, Vol. 14, nr 4, s. 582-589Artikel i tidskrift (Övrigt vetenskapligt) Published
Abstract [en]

Objective: Fontan surgery is performed in children with univentricular heart defects. Previous data regarding permanent pacemaker implantation frequency and indications in Fontan patients are limited and conflicting. We examined the prevalence of and risk factors for pacemaker treatment in a consecutive national cohort of patients after Fontan surgery in Sweden.

Methods: We retrospectively reviewed all Swedish patients who underwent Fontan surgery from 1982 to 2017 (n = 599).

Results: After a mean follow‐up of 12.2 years, 13% (78/599) of the patients with Fontan circulation had received pacemakers. Patients operated with the extracardiac conduit (EC) type of total cavopulmonary connection had a significantly lower prevalence of pacemaker implantation (6%) than patients with lateral tunnel (LT; 17%). Mortality did not differ between patients with (8%) and without pacemaker (5%). The most common pacemaker indication was sinus node dysfunction (SND) (64%). Pacemaker implantation due to SND was less common among patients with EC. Pacemaker implantation was significantly more common in patients with mitral atresia (MA; 44%), double outlet right ventricle (DORV; 24%) and double inlet left ventricle (DILV; 20%). In contrast, patients with pulmonary atresia with intact ventricular septum and hypoplastic left heart syndrome were significantly less likely to receive a pacemaker (3% and 6%, respectively).

Conclusions: Thirteen percent of Fontan patients received a permanent pacemaker, most frequently due to SND. EC was associated with a significantly lower prevalence of pacemaker than LT. Permanent pacemaker was more common in patients with MA, DORV, and DILV.

Ort, förlag, år, upplaga, sidor
Wiley-Blackwell, 2019
Nyckelord
Congenital heart disease, Fontan circulation, pacemaker treatment, sinus node dysfunction
Nationell ämneskategori
Pediatrik
Forskningsämne
pediatrik; kardiologi
Identifikatorer
urn:nbn:se:umu:diva-156716 (URN)10.1111/chd.12766 (DOI)000481575300010 ()
Forskningsfinansiär
Västerbottens läns landstingHjärt-Lungfonden
Anmärkning

Originally included in thesis in manuscript form.

Tillgänglig från: 2019-02-25 Skapad: 2019-02-25 Senast uppdaterad: 2019-12-03Bibliografiskt granskad
Burström, Å., Mora, M. A., Öjmyr-Joelsson, M., Sparud-Lundin, C., Rydberg, A., Hanseus, K., . . . Bratt, E.-L. (2019). Parental uncertainty about transferring their adolescent with congenital heart disease to adult care. Journal of Advanced Nursing, 75(2), 380-387
Öppna denna publikation i ny flik eller fönster >>Parental uncertainty about transferring their adolescent with congenital heart disease to adult care
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2019 (Engelska)Ingår i: Journal of Advanced Nursing, ISSN 0309-2402, E-ISSN 1365-2648, Vol. 75, nr 2, s. 380-387Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Aims: To study parent's levels of uncertainty related to the transfer from pediatric to adult care in adolescents with congenital heart disease (CHD) and to identify potentially correlating factors. Background: Parents acknowledge that during transition they struggle with finding ways of feeling secure in handing over the responsibility and letting go of control. Well-prepared and informed parents who feel secure are most likely better skilled to support their adolescent and to hand over the responsibility. Design: A cross-sectional study. Methods: Overall, 351 parents were included (35% response rate). Parental uncertainty was assessed using a Linear Analogue Scale (0-100). Data were collected between January - August 2016. Potential correlates were assessed using the readiness for transition questionnaire and sociodemographic data. Results: The mean parental uncertainty score was 42.5. Twenty-four percent of the parents had a very low level of uncertainty (score 0-10) and 7% had a very high level (score 91-100). Overall, 26% of the mothers and 36% of the fathers indicated that they had not started thinking of the transfer yet. The level of uncertainty was negatively associated with the level of perceived overall readiness. Adolescents' age, sex, CHD complexity, and parental age were not related to uncertainty. Conclusion: A wide range in the levels of uncertainty was found. Parents who were less involved in the care, or perceived their adolescent as readier for the transition, felt less uncertain. Still, thirty percent of the parents had not started to think about the transfer to adult care.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, 2019
Nyckelord
adolescents, congenital heart disease, nursing, parental uncertainty, readiness for transition, transfer, ansition
Nationell ämneskategori
Omvårdnad
Identifikatorer
urn:nbn:se:umu:diva-157601 (URN)10.1111/jan.13852 (DOI)000459622300013 ()30209810 (PubMedID)
Tillgänglig från: 2019-03-28 Skapad: 2019-03-28 Senast uppdaterad: 2019-03-28Bibliografiskt granskad
Acuña Mora, M., Sparud-Lundin, C., Burström, Å., Hanseus, K., Rydberg, A., Moons, P. & Bratt, E.-L. (2019). Patient empowerment and its correlates in young persons with congenital heart disease. European Journal of Cardiovascular Nursing, 18(5), 389-398, Article ID 1474515119835434.
Öppna denna publikation i ny flik eller fönster >>Patient empowerment and its correlates in young persons with congenital heart disease
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2019 (Engelska)Ingår i: European Journal of Cardiovascular Nursing, ISSN 1474-5151, E-ISSN 1873-1953, Vol. 18, nr 5, s. 389-398, artikel-id 1474515119835434Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

OBJECTIVE:: The objective of this study was to measure the level of empowerment and identify its correlates in young persons with congenital heart disease.

STUDY DESIGN:: Patients aged 14-18 years with congenital heart disease, and under active follow-up in one of four paediatric cardiology centres in Sweden were invited to participate in a cross-sectional study. A total of 202 young persons returned the questionnaires. Patient empowerment was measured with the Gothenburg Young Persons Empowerment Scale that allows the calculation of total and subscale scores. Univariate and multivariate linear regression analyses were undertaken to analyse possible correlates, including: sex, age, health behaviours, knowledge of congenital heart disease, quality of life, patient-reported health, congenital heart disease complexity, transition readiness and illness perception.

RESULTS:: The mean empowerment score was 54.6±10.6 (scale of 15-75). Univariate analyses showed that empowerment was associated with age, quality of life, transition readiness, illness perception, health behaviours and patient-reported health (perceived physical appearance, treatment anxiety, cognitive problems and communication issues). However, multivariable linear regression analyses identified that only transition readiness (β=0.28, P<0.001) and communication (β=0.36, P<0.001) had a positive association with patient empowerment. These variables were also significantly associated with the subscale scores of the empowerment scale of knowledge and understanding ( P<0.001), shared decision-making ( P<0.001) and enabling others ( P<0.01). The overall models' explained variance ranged from 8% to 37%.

CONCLUSION:: Patient empowerment was associated with transition readiness and fewer problems communicating. While it is not possible to establish the directionality of the associations, interventions looking to increase empowerment could benefit from using these variables (or measurements) for evaluation purposes.

Ort, förlag, år, upplaga, sidor
Sage Publications, 2019
Nyckelord
Adolescents, congenital, correlates, heart defects, patient empowerment, young persons
Nationell ämneskategori
Pediatrik
Identifikatorer
urn:nbn:se:umu:diva-159330 (URN)10.1177/1474515119835434 (DOI)30834772 (PubMedID)
Forskningsfinansiär
Hjärt-Lungfonden, 20150535Forte, Forskningsrådet för hälsa, arbetsliv och välfärd, STYA-2015/0003Vetenskapsrådet, 2015-02503
Tillgänglig från: 2019-05-24 Skapad: 2019-05-24 Senast uppdaterad: 2019-06-24Bibliografiskt granskad
Burstrom, A., Mora, M. A., Ojmyr-Joelsson, M., Sparud-Lundin, C., Rydberg, A., Hanseus, K., . . . Bratt, E.-L. (2019). Ready for Transfer to Adult Care?: A Triadic Evaluation of Transition Readiness in Adolescents With Congenital Heart Disease and Their Parents. Journal of Family Nursing, Article ID UNSP 1074840719864255.
Öppna denna publikation i ny flik eller fönster >>Ready for Transfer to Adult Care?: A Triadic Evaluation of Transition Readiness in Adolescents With Congenital Heart Disease and Their Parents
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2019 (Engelska)Ingår i: Journal of Family Nursing, ISSN 1074-8407, E-ISSN 1552-549X, artikel-id UNSP 1074840719864255Artikel i tidskrift (Refereegranskat) Epub ahead of print
Abstract [en]

Transfer to adult care for adolescents with chronic conditions ought to be determined by transition readiness. The aims of this study were (a) to describe the level of readiness for transition in adolescents with congenital heart disease, (b) to compare adolescents' assessment of transition readiness with their parents' assessments, and (c) to study potential correlates of transition readiness. A total of 157 triads of adolescents aged 14 to 18 years and their parents completed the Readiness for Transition Questionnaire. Adolescents scored higher on overall readiness than their parents. Multivariable analyses revealed that higher levels of adolescents' overall readiness were associated with a less threatening view of the illness, a higher level of empowerment, and with higher mothers' and fathers' overall readiness scores. Adolescents' responsibility scores were positively associated with age and parental adolescent responsibility scores. Parental involvement scores were negatively associated with adolescents' age and positively with the mothers' parental involvement scores. By using a triadic evaluation, the results of the present study significantly extend what is currently known about this population.

Ort, förlag, år, upplaga, sidor
SAGE PUBLICATIONS INC, 2019
Nyckelord
adolescents, congenital heart disease, readiness for transition, parents
Nationell ämneskategori
Psykologi (exklusive tillämpad psykologi)
Identifikatorer
urn:nbn:se:umu:diva-162328 (URN)10.1177/1074840719864255 (DOI)000478130500001 ()31342815 (PubMedID)
Tillgänglig från: 2019-08-20 Skapad: 2019-08-20 Senast uppdaterad: 2019-08-20
Alenius Dahlqvist, J., Wiklund, U., Karlsson, M., Hanseus, K., Stromvall-Larsson, E., Nygren, A., . . . Rydberg, A. (2019). Sinus node dysfunction in patients with Fontan circulation: could heart rate variability be a predictor for pacemaker implantation?. Pediatric Cardiology, 40(4), 685-693
Öppna denna publikation i ny flik eller fönster >>Sinus node dysfunction in patients with Fontan circulation: could heart rate variability be a predictor for pacemaker implantation?
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2019 (Engelska)Ingår i: Pediatric Cardiology, ISSN 0172-0643, E-ISSN 1432-1971, Vol. 40, nr 4, s. 685-693Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Sinus node dysfunction (SND) causes significant morbidity in patients after Fontan surgery. Heart rate variability (HRV) reflects the autonomic regulation of the heart, and changes in HRV have been associated with SND in adults. We aimed to study whether changes in HRV could be detected in 24-h electrocardiographic (ECG) recordings in Fontan patients with SND. We compared HRV results from two patient groups; patients with Fontan circulation who later required a pacemaker due to severe SND (n = 12) and patients with Fontan circulation and SND, without indication for pacemaker treatment (n = 11), with two control groups; patients with Fontan circulation without SND (n = 90) and healthy controls (n = 66). The Poincare plot index SD2 (representing changes in heart rate over 24-h) and the very low-frequency (VLF) HRV component were significantly higher in both SND groups, both compared with healthy controls and patients with Fontan circulation without SND. In SND patients with pacemakers, SD2 and VLF were slightly reduced compared to SND patients without pacemaker (p = 0.06). In conclusion, in Fontan patients with SND the HRV is significantly higher compared to healthy controls and Fontan patients without SND. However, in patients with severe SND requiring pacemaker, SD2 and VLF tended to be lower than in patients with SND without pacemaker, which could indicate a reduced diurnal HRV in addition to the severe bradycardia. This is a small study, but our results indicate that HRV analysis might be a useful method in the follow-up of Fontan patients regarding development of SND.

Ort, förlag, år, upplaga, sidor
Springer-Verlag New York, 2019
Nyckelord
Congenital heart disease, Fontan circulation, Pacemaker, Sinus node dysfunction, Heart rate variability, Poincare analysis
Nationell ämneskategori
Kardiologi Pediatrik
Identifikatorer
urn:nbn:se:umu:diva-158740 (URN)10.1007/s00246-019-02092-5 (DOI)000463707500002 ()30918992 (PubMedID)
Tillgänglig från: 2019-05-20 Skapad: 2019-05-20 Senast uppdaterad: 2019-05-20Bibliografiskt granskad
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