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Feldman MJ, Bliss-Moreau E, Lindquist KA. The neurobiology of interoception and affect. Trends Cogn Sci 2024; 28:643-661. [PMID: 38395706 PMCID: PMC11222051 DOI: 10.1016/j.tics.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024]
Abstract
Scholars have argued for centuries that affective states involve interoception, or representations of the state of the body. Yet, we lack a mechanistic understanding of how signals from the body are transduced, transmitted, compressed, and integrated by the brains of humans to produce affective states. We suggest that to understand how the body contributes to affect, we first need to understand information flow through the nervous system's interoceptive pathways. We outline such a model and discuss how unique anatomical and physiological aspects of interoceptive pathways may give rise to the qualities of affective experiences in general and valence and arousal in particular. We conclude by considering implications and future directions for research on interoception, affect, emotions, and human mental experiences.
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Affiliation(s)
- M J Feldman
- Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - E Bliss-Moreau
- Department of Psychology, University of California Davis, Davis, CA, USA; California National Primate Research Center, University of California Davis, Davis, CA, USA
| | - K A Lindquist
- Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
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2
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Snoep MC, Aliasi M, van der Meeren LE, Jongbloed MRM, DeRuiter MC, Haak MC. Placenta morphology and biomarkers in pregnancies with congenital heart disease - A systematic review. Placenta 2021; 112:189-196. [PMID: 34388551 DOI: 10.1016/j.placenta.2021.07.297] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/16/2021] [Accepted: 07/27/2021] [Indexed: 01/29/2023]
Abstract
Impaired placentation is an important contributing factor to intra-uterine growth restriction and pre-eclampsia in fetuses with congenital heart defects (CHD). These pregnancy complications occur more frequently in pregnancies with fetal CHD. One of the most important factors influencing the life of children with CHD is neurodevelopmental delay, which seems to start already in utero. Delayed neurodevelopment in utero may be correlated or even (partly) explained by impaired placentation in CHD cases. This systematic review provides an overview of published literature on placental development in pregnancies with fetal CHD. A systematic search was performed and the Newcastle-Ottawa scale was used to access data quality. Primary outcomes were placenta size and weight, vascular and villous architecture, immunohistochemistry, angiogenic biomarkers and/or placental gene expression. A total of 1161 articles were reviewed and 21 studies were included. Studies including CHD with a genetic disorder or syndrome and/or multiple pregnancies were excluded. Lower placental weight and elevated rates of abnormal umbilical cord insertions were found in CHD. Cases with CHD more frequently showed microscopic placental abnormalities (i.e. abnormal villous maturation and increased maternal vascular malperfusion lesions), reduced levels of angiogenic biomarkers and increased levels of anti-angiogenic biomarkers in maternal serum and umbilical cord blood. Altered gene expression involved in placental development and fetal growth were found in maternal serum and CHD placentas. In conclusion, abnormal placentation is found in CHD. More extensive studies are needed to elucidate the contribution of impaired placentation to delayed neurodevelopment in CHD cases.
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Affiliation(s)
- Maartje C Snoep
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, the Netherlands.
| | - Moska Aliasi
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Monique R M Jongbloed
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands; Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Marco C DeRuiter
- Department of Anatomy and Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - Monique C Haak
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, the Netherlands
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3
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Leon RL, Ortigoza EB, Ali N, Angelis D, Wolovits JS, Chalak LF. Cerebral Blood Flow Monitoring in High-Risk Fetal and Neonatal Populations. Front Pediatr 2021; 9:748345. [PMID: 35087771 PMCID: PMC8787287 DOI: 10.3389/fped.2021.748345] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/15/2021] [Indexed: 12/18/2022] Open
Abstract
Cerebrovascular pressure autoregulation promotes stable cerebral blood flow (CBF) across a range of arterial blood pressures. Cerebral autoregulation (CA) is a developmental process that reaches maturity around term gestation and can be monitored prenatally with both Doppler ultrasound and magnetic resonance imaging (MRI) techniques. Postnatally, there are key advantages and limitations to assessing CA with Doppler ultrasound, MRI, and near-infrared spectroscopy. Here we review these CBF monitoring techniques as well as their application to both fetal and neonatal populations at risk of perturbations in CBF. Specifically, we discuss CBF monitoring in fetuses with intrauterine growth restriction, anemia, congenital heart disease, neonates born preterm and those with hypoxic-ischemic encephalopathy. We conclude the review with insights into the future directions in this field with an emphasis on collaborative science and precision medicine approaches.
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Affiliation(s)
- Rachel L Leon
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Eric B Ortigoza
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Noorjahan Ali
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Dimitrios Angelis
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Joshua S Wolovits
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Lina F Chalak
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States.,Department of Psychiatry, University of Texas Southwestern Medical Center, Dallas, TX, United States
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Abstract
Our understanding of the development of congenital heart disease (CHD) across the lifespan has evolved. These include the evidence for the change in demographics of CHD, the observations that lifelong complications of CHD result in CHD as a lifespan disease, and the concept of long windows of exposure to risk that start in foetal life and magnify the expression of risk in adulthood. These observations set the stage for trajectories as an emerging construct to target health-service interventions. The lifelong cardiovascular and systemic complications of CHD make the long-term care of these patients challenging for cardiologists and internists alike. A life-course approach is thus required to facilitate our understanding of the natural history and to orient our clinical efforts. Three specific examples are illustrated: neurocognition; cancer resulting from exposure to low-dose ionizing radiation; and cardiovascular disease acquired in ageing adults. As patients grow, they do not just want to live longer, they want to live well. With the need to move beyond the mortality outcome, a shift in paradigm is needed. A life-course health development framework is developed for CHD. Trajectories are used as a complex construct to illustrate the patient's healthcare journey. There is a need to define disease trajectories, wellness trajectories and ageing trajectories in this population. Disease trajectories for repaired tetralogy of Fallot, transposition of the great arteries and the Fontan operation are hypothetically constructed. For clinicians, the life-course horizon helps to frame the patient's history and plan for the future. For researchers, life-course epidemiology offers a framework that will help increase the relevance of clinical enquiry and improve study design and analyses. A health-service policy framework is proposed for a growing number of conditions that start in the before birth and extend as long as contemporary survival now permits. Ultimately, the goal is the precision delivery of health services that enables lifelong health management, organization of developmental health services, and integration of vertical and horizontal health-service delivery.
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Affiliation(s)
- A Marelli
- McGill University Health Centre, RVH/Glen Site, Cardiology, McGill University Health Centre, Montreal, Québec, Canada
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Liu Y, Zeng S, Tan Y, Zhou J, Zhao B. Cerebral blood flow dynamic in foetuses with hypoplastic left heart syndrome: Incremental value of the first segment of the anterior cerebral artery over the middle cerebral artery? Prenat Diagn 2019; 40:216-222. [PMID: 31525274 DOI: 10.1002/pd.5564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 08/30/2019] [Accepted: 09/06/2019] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To investigate the blood flow Doppler parameters of the anterior cerebral artery (ACA) in foetuses with hypoplastic left heart syndrome (HLHS). METHODS Doppler parameters (peak systolic velocity [PSV], end-diastolic velocity [EDV], time-averaged maximum velocity [TAMXV] and pulsatility index [PI]) and biometric parameters were measured in two anatomical segments of the ACA (S1 and S2) and in the middle cerebral artery (MCA) in 35 HLHS foetuses and 73 gestational age-matched normal foetuses. Correlations between the cerebral artery PIs and head circumference (HC) were assessed. RESULTS Both EDV and TAMXV of the ACA and MCA in the HLHS group were significantly higher than in the normal group (P < .05). The PI of the ACA and MCA in the HLHS group were significantly lower than in the normal group (P < .05). ACAS1PI and ACAS2PI in the HLHS foetuses with retrograde blood flow in the aortic isthmus (AoI) were significantly lower than those of HLHS foetuses without retrograde blood flow in the AoI (P < .05). ACAS2PI was significantly lower than ACAS1PI in the HLHS foetuses with retrograde blood flow in the AoI (P = .047). The abnormal rates of ACAS1 and ACAS2 were significantly higher than that of the MCA (P < .05) in the HLHS group. The HC and biparietal diameter were significantly lower in the HLHS group than in the control group (P < .05). HC was correlated with the PIs of ACAS1, ACAS2 and the MCA in the HLHS group (P < .05). CONCLUSION A redistribution of foetal cerebral blood flow appeared in HLHS, and the measurement of ACA PI might provide early information on brain hypoxia.
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Affiliation(s)
- Yushan Liu
- Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Shi Zeng
- Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ya Tan
- Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jiawei Zhou
- Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Baihua Zhao
- Department of Ultrasound Diagnosis, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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Kinnear C, Haranal M, Shannon P, Jaeggi E, Chitayat D, Mital S. Abnormal fetal cerebral and vascular development in hypoplastic left heart syndrome. Prenat Diagn 2018; 39:38-44. [PMID: 30548283 PMCID: PMC6590153 DOI: 10.1002/pd.5395] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/18/2018] [Accepted: 11/20/2018] [Indexed: 11/10/2022]
Abstract
Objective To assess the cerebral and vascular development in fetuses with hypoplastic left heart syndrome (HLHS). Methods Pregnant women carrying fetuses diagnosed with HLHS who decided to interrupt their pregnancies were included in our study. Aortic size and blood flow were assessed based from fetal echocardiography. Immunohistochemical staining was performed in brain sections obtained from pathology in fetuses with HLHS and control fetuses without heart disease. Results Twenty‐seven midgestation fetal HLHS were included (gestational age, 23.3 ± 3.4 weeks). Head circumference z scores were lower in HLHS fetuses. Middle cerebral artery pulsatility index, a measure of cerebrovascular resistance, was inversely correlated with the ascending aortic z score (P < 0.05). Fetuses with HLHS had lower capillary density in the germinal matrix and their capillaries were larger compared with control fetuses with (P < 0.05). The expression of neuronal differentiation marker, FGFR1, and oligodendrocyte precursor, O4, were lower in HLHS brains compared with controls (P < 0.05). Conclusion Our study identified abnormalities of vascular flow and structural brain abnormalities in fetal HLHS associated with impaired neuronal and oligodendrocyte differentiation, as well as cerebral growth impairment, early in gestation. These findings may be related in part to early vascular abnormalities. What's already known about this topic? Structural brain abnormalities and abnormalities in neurodevelopment have been reported in HLHS.
What does this study add? Our study describes abnormal vascular development that may account for abnormal neuronal and white matter differentiation in the developing fetus with HLHS.
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Affiliation(s)
- Caroline Kinnear
- Genetics and Genome Biology, Hospital for Sick Children, Toronto, ON, Canada
| | - Maruti Haranal
- Department of Cardiac Surgery, Hospital for Sick Children, Toronto, ON, Canada
| | - Patrick Shannon
- Department of Pathology, Mount Sinai Hospital, Toronto, ON, Canada
| | - Edgar Jaeggi
- Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
| | - David Chitayat
- Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
| | - Seema Mital
- Department of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada
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Jansen FAR, van Zwet EW, Rijlaarsdam MEB, Pajkrt E, van Velzen CL, Zuurveen HR, Kragt A, Bax CL, Clur SAB, van Lith JMM, Blom NA, Haak MC. Head growth in fetuses with isolated congenital heart defects: lack of influence of aortic arch flow and ascending aorta oxygen saturation. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2016; 48:357-364. [PMID: 27256792 DOI: 10.1002/uog.15980] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/02/2016] [Accepted: 05/27/2016] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Congenital heart defects (CHDs) are reported to be associated with a smaller fetal head circumference (HC) and neurodevelopmental delay. Recent studies suggest that altered intrauterine brain hemodynamics may explain these findings. Our objectives were to evaluate the pattern of head growth in a large cohort of fetuses with various types of CHD, analyze these patterns according to the type of CHD and estimate the effect of cerebral hemodynamics with advancing gestation in the second and third trimesters. METHODS Singleton fetuses with an isolated CHD were selected from three fetal medicine units (n = 436). Cases with placental insufficiency or genetic syndromes were excluded. CHD types were clustered according to the flow and oxygen saturation in the aorta. Z-scores of biometric data were constructed using growth charts of a normal population. HC at different gestational ages was evaluated and univariate and multivariate mixed regression analyses were performed to examine the patterns of prenatal HC growth. RESULTS Fetuses with severe and less severe types of CHD demonstrated statistically significant HC growth restriction with increasing gestational age (slope of -0.017/day); however, there was no statistically significant effect of fetal hemodynamics on HC growth. Fetuses with CHD but normal brain oxygenation and normal aortic flow showed a significant decrease in HC growth (slope of -0.024/day). Only fetuses with isolated tetralogy of Fallot demonstrated a smaller HC z-score at 20 weeks of gestation (-0.67 (95% CI, -1.16 to -0.18)). CONCLUSIONS Despite the decline in head growth in fetuses with a prenatally detected isolated CHD, HC values were within the normal range, raising the question of its clinical significance. Furthermore, in contrast to other studies, this large cohort did not establish a significant correlation between aortic flow or oxygen saturation and HC growth. Factors other than altered fetal cerebral hemodynamics may contribute to HC growth restriction with increasing gestational age, such as (epi)genetic or placental factors. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- F A R Jansen
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - E W van Zwet
- Department of Medical Statistics, Leiden University Medical Center, Leiden, The Netherlands
| | - M E B Rijlaarsdam
- Department of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - E Pajkrt
- Department of Obstetrics, AMC University Hospital, Amsterdam, The Netherlands
| | - C L van Velzen
- Department of Obstetrics, VU Medical Center, Amsterdam, The Netherlands
| | - H R Zuurveen
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - A Kragt
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - C L Bax
- Department of Obstetrics, VU Medical Center, Amsterdam, The Netherlands
| | - S-A B Clur
- Department of Pediatric Cardiology, AMC University Hospital, Amsterdam, The Netherlands
| | - J M M van Lith
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - N A Blom
- Department of Pediatric Cardiology, Leiden University Medical Center, Leiden, The Netherlands
- Department of Pediatric Cardiology, AMC University Hospital, Amsterdam, The Netherlands
| | - M C Haak
- Department of Obstetrics and Fetal Medicine, Leiden University Medical Center, Leiden, The Netherlands
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8
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Zeng S, Zhou J, Peng Q, Tian L, Xu G, Zhao Y, Wang T, Zhou Q. Assessment by three-dimensional power Doppler ultrasound of cerebral blood flow perfusion in fetuses with congenital heart disease. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2015; 45:649-656. [PMID: 25615948 DOI: 10.1002/uog.14798] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 01/11/2015] [Accepted: 01/15/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To use three-dimensional (3D) power Doppler ultrasound to investigate cerebral blood flow perfusion in fetuses with congenital heart disease (CHD). METHODS The vascularization index (VI), flow index (FI) and vascularization flow index (VFI) in the total intracranial volume and the main arterial territories (middle cerebral artery (MCA), anterior cerebral artery (ACA) and posterior cerebral artery (PCA)) were evaluated prospectively and compared in 112 fetuses with CHD and 112 normal fetuses using 3D power Doppler. Correlations between the 3D power Doppler indices and neurodevelopment scores at 12 months of age were assessed in a subset of the CHD group, and values were compared with those of controls. RESULTS Compared with the controls, the VI, FI and VFI of the total intracranial volume and the three main arteries were significantly higher in fetuses with hypoplastic left heart syndrome and left-sided obstructive lesions (P < 0.001), and the 3D power Doppler values in the ACA territory were significantly higher in fetuses with transposition of the great arteries (P < 0.01). The largest proportional increase in the blood flow perfusion indices in the fetuses with CHD relative to controls was observed in the ACA territory (P < 0.05). Among 41 cases with CHD that underwent testing, the mean Psychomotor Development Index (PDI) and Mental Development Index (MDI) scores were significantly lower than in 94 of the controls that were tested (P < 0.001). Among these CHD cases, total intracranial FI was positively correlated with PDI (r = 0.342, P = 0.029) and MDI (r = 0.339, P = 0.030), and ACA-VI and ACA-VFI were positively correlated with PDI (r = 0.377 and 0.389, P = 0.015 and 0.012, respectively) but were not correlated with MDI (r = 0.243 and 0.203, P = 0.126 and 0.204, respectively). CONCLUSIONS Cerebral blood flow perfusion was increased relative to controls in most fetuses with CHD and was associated with neurodevelopment scores at 12 months. Prenatal 3D power Doppler ultrasound might help to identify cases of brain vasodilatation earlier and inform parental counseling.
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Affiliation(s)
- S Zeng
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - J Zhou
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - Q Peng
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - L Tian
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - G Xu
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - Y Zhao
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
| | - T Wang
- Department of Pediatrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan, PR China
| | - Q Zhou
- Department of Ultrasonography, The Second Xiangya Hospital, Central South University, Hunan, PR China
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Brossard-Racine M, du Plessis AJ, Vezina G, Robertson R, Bulas D, Evangelou IE, Donofrio M, Freeman D, Limperopoulos C. Prevalence and spectrum of in utero structural brain abnormalities in fetuses with complex congenital heart disease. AJNR Am J Neuroradiol 2014; 35:1593-9. [PMID: 24651820 DOI: 10.3174/ajnr.a3903] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Brain injury is a major complication in neonates with complex congenital heart disease. Preliminary evidence suggests that fetuses with congenital heart disease are at greater risk for brain abnormalities. However, the nature and frequency of these brain abnormalities detected by conventional fetal MR imaging has not been examined prospectively. Our primary objective was to determine the prevalence and spectrum of brain abnormalities detected on conventional clinical MR imaging in fetuses with complex congenital heart disease and, second, to compare the congenital heart disease cohort with a control group of fetuses from healthy pregnancies. MATERIALS AND METHODS We prospectively recruited pregnant women with a confirmed fetal congenital heart disease diagnosis and healthy volunteers with normal fetal echocardiogram findings who underwent a fetal MR imaging between 18 and 39 weeks gestational age. RESULTS A total of 338 fetuses (194 controls; 144 with congenital heart disease) were studied at a mean gestational age of 30.61 ± 4.67 weeks. Brain abnormalities were present in 23% of the congenital heart disease group compared with 1.5% in the control group (P < .001). The most common abnormalities in the congenital heart disease group were mild unilateral ventriculomegaly in 12/33 (36.4%) and increased extra-axial spaces in 10/33 (30.3%). Subgroup analyses comparing the type and frequency of brain abnormalities based on cardiac physiology did not reveal significant associations, suggesting that the brain abnormalities were not limited to those with the most severe congenital heart disease. CONCLUSIONS This is the first large prospective study reporting conventional MR imaging findings in fetuses with congenital heart disease. Our results suggest that brain abnormalities are prevalent but relatively mild antenatally in fetuses with congenital heart disease. The long-term predictive value of these findings awaits further study.
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Affiliation(s)
- M Brossard-Racine
- From the Advanced Pediatric Brain Imaging Research Laboratory (M.B.-R., I.E.E., D.F., C.L.)Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)Fetal and Transitional Medicine (M.B.-R., A.d.P., M.D., C.L.)
| | - A J du Plessis
- Fetal and Transitional Medicine (M.B.-R., A.d.P., M.D., C.L.)
| | - G Vezina
- Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)
| | - R Robertson
- Department of Radiology (R.R.), Children's Hospital Boston and Harvard Medical School, Boston, Massachusetts
| | - D Bulas
- Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)
| | - I E Evangelou
- From the Advanced Pediatric Brain Imaging Research Laboratory (M.B.-R., I.E.E., D.F., C.L.)Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)
| | - M Donofrio
- Fetal and Transitional Medicine (M.B.-R., A.d.P., M.D., C.L.)Division of Cardiology (M.D.), Children's National Medical Center, Washington DC
| | - D Freeman
- From the Advanced Pediatric Brain Imaging Research Laboratory (M.B.-R., I.E.E., D.F., C.L.)Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)
| | - C Limperopoulos
- From the Advanced Pediatric Brain Imaging Research Laboratory (M.B.-R., I.E.E., D.F., C.L.)Division of Diagnostic Imaging and Radiology (M.B.-R., G.V., D.B., I.E.E., D.F., C.L.)Fetal and Transitional Medicine (M.B.-R., A.d.P., M.D., C.L.)
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