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Siebers P, Gembruch U, Merz WM, Recker F, Müller A, Strizek B, Geipel A, Berg C, Weber EC. Fetal NT-proBNP levels and their course in severe anemia during intrauterine treatment. Arch Gynecol Obstet 2024; 309:1341-1351. [PMID: 36966429 PMCID: PMC10894143 DOI: 10.1007/s00404-023-07006-8] [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: 12/10/2022] [Accepted: 03/07/2023] [Indexed: 03/27/2023]
Abstract
PURPOSE In adults and fetuses, N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a marker of cardiac failure and myocardial remodelling. We examined the effect of anemia and intrauterine transfusion (IUT) on NT-proBNP concentrations in fetuses with anemia and established gestational age-dependent reference values of a control group. METHODS We analyzed NT-proBNP levels in anemic fetuses that underwent serial intrauterine transfusions (IUT), focusing on different causes and severity of anemia and comparing the results to a non-anemic control group. RESULTS In the control group, the average NT-proBNP concentration was 1339 ± 639 pg/ml, decreasing significantly with increasing gestational age (R = - 74.04, T = - 3.65, p = 0.001). Subjects had significantly higher NT-proBNP concentrations before initiation of IUT therapy (p < 0.001), showing fetuses with parvovirus B19 (PVB19) infection having the highest concentrations. Hydropic fetuses also showed an increased NT-proBNP concentration compared to non-hydropic fetuses (p < 0.001). During the course of therapy, NT-proBNP concentration before subsequent IUT decreased significantly from pathologically high levels, while MoM-Hb and MoM-MCA-PSV remained pathological. CONCLUSION NT-pro BNP levels in non-anemic fetuses are higher than in postnatal life, decreasing with ongoing pregnancy. Anemia is a hyperdynamic state and its severity correlates with circulating NT-proBNP levels. Highest concentrations occur in fetuses with hydrops and with PVB19 infection, respectively. Treatment by IUT leads to a normalisation of NT-proBNP concentrations, so the measurement of its levels may be useful in therapy monitoring.
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Affiliation(s)
- Pauline Siebers
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Ulrich Gembruch
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Waltraut Maria Merz
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Florian Recker
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Andreas Müller
- Department of Neonatology and Pediatric Intensive Care, University Hospital Bonn, Bonn, Germany
| | - Brigitte Strizek
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Annegret Geipel
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
| | - Christoph Berg
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne, Cologne, Germany
| | - Eva Christin Weber
- Department of Obstetrics and Prenatal Medicine, University Hospital Bonn, Bonn, Germany.
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne, Cologne, Germany.
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Gyselaers W, Lees C. Maternal Low Volume Circulation Relates to Normotensive and Preeclamptic Fetal Growth Restriction. Front Med (Lausanne) 2022; 9:902634. [PMID: 35755049 PMCID: PMC9218216 DOI: 10.3389/fmed.2022.902634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/04/2022] [Indexed: 11/13/2022] Open
Abstract
This narrative review summarizes current evidence on the association between maternal low volume circulation and poor fetal growth. Though much work has been devoted to the study of cardiac output and peripheral vascular resistance, a low intravascular volume may explain why high vascular resistance causes hypertension in women with preeclampsia (PE) that is associated with fetal growth restriction (FGR) and, at the same time, presents with normotension in FGR itself. Normotensive women with small for gestational age babies show normal gestational blood volume expansion superimposed upon a constitutionally low intravascular volume. Early onset preeclampsia (EPE; occurring before 32 weeks) is commonly associated with FGR, and poor plasma volume expandability may already be present before conception, thus preceding gestational volume expansion. Experimentally induced low plasma volume in rodents predisposes to poor fetal growth and interventions that enhance plasma volume expansion in FGR have shown beneficial effects on intrauterine fetal condition, prolongation of gestation and birth weight. This review makes the case for elevating the maternal intravascular volume with physical exercise with or without Nitric Oxide Donors in FGR and EPE, and evaluating its role as a potential target for prevention and/or management of these conditions.
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Affiliation(s)
- Wilfried Gyselaers
- Department of Obstetrics, Ziekenhuis Oost Limburg, Genk, Belgium.,Department of Physiology, Hasselt University, Hasselt, Belgium
| | - Christoph Lees
- Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom.,Department of Metabolism, Digestion and Reproduction, Institute for Reproductive and Developmental Biology, Imperial College London, London, United Kingdom.,Department of Development and Regeneration, KU Leuven, Leuven, Belgium.,Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, London, United Kingdom
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Erdol MA, Tanacan A, Eroglu H, Tonyali NV, Erdogan M, Yucel A, Yazihan N, Sahin D. Pro-BNP Levels and Its Prognostic Role in Chronic Hypertensive Pregnancies: A Prospective Case-Control Study From A Tertiary Care Hospital. Hypertens Pregnancy 2021; 40:202-208. [PMID: 34143704 DOI: 10.1080/10641955.2021.1939712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND This study aimed to investigate the prognostic value of N-terminal B-type natriuretic peptide (NT-proBNP) in pregnancies with isolated chronic hypertension (HT). METHOD 34 pregnant women with chronic HT and 40normotensive controls were enrolled. The association between plasma NT-proBNP levels obtained in the first trimester and perinatal complications were evaluated. RESULTS NT-proBNP levelsstrongly predicted low birth weight (AUC=0.842, p<0.001). NT-proBNP and birth weight were negatively correlated (r= -0.323, p=0.005). NT-proBNP was found to be an individual determinant of low birth weight in univariate analysis (OR:1.03; 95%CI:1.01-1.04). CONCLUSION NT-proBNP levels can be useful to predict low birth weight in pregnancies with chronic HT.
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Affiliation(s)
- Mehmet Akif Erdol
- Department of Cardiology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Atakan Tanacan
- Department of Obstetrics and Gynecology, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Hasan Eroglu
- Department of Obstetrics and Gynecology, Turkish Ministry of Health, Gazi Antep Training and Research Hospital, Gazi Antep, Turkey
| | - Nazan Vanli Tonyali
- Department of Obstetrics and Gynecology, Turkish Ministry of Health, Etlik Zubeyde Hanim Women's Health Training and Research Hospital, Ankara, Turkey
| | - Mehmet Erdogan
- Department of Cardiology, Yildirim Beyazid University, Ankara City Hospital, Ankara, Turkey
| | - Aykan Yucel
- Department of Obstetrics and Gynecology, University of Health Sciences, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
| | - Nuray Yazihan
- Department of Pathophysiology, Ankara University, Faculty of Medicine, Internal Medicine, Pathophysiology Department, Ankara University, Institute of Health Sciences, Interdisciplinary Food, Metabolism and Clinical Nutrition Department, Ankara, Turkey
| | - Dilek Sahin
- Department of Obstetrics and Gynecology, University of Health Sciences, Turkish Ministry of Health, Ankara City Hospital, Ankara, Turkey
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4
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Harris SL, More K, Dixon B, Troughton R, Pemberton C, Horwood J, Ellis N, Austin N. Factors affecting N-terminal pro-B-type natriuretic peptide levels in preterm infants and use in determination of haemodynamic significance of patent ductus arteriosus. Eur J Pediatr 2018; 177:521-532. [PMID: 29352349 DOI: 10.1007/s00431-018-3089-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/08/2018] [Accepted: 01/09/2018] [Indexed: 12/31/2022]
Abstract
UNLABELLED This study aimed to investigate factors affecting N-terminal pro-B-type natriuretic peptide (NTproBNP) in preterm infants and the ability of NTproBNP to predict haemodynamically significant patent ductus arteriosus (HsPDA). Prospective cohort study of 51 infants < 30 weeks gestation. Blood NTproBNP and heart ultrasound were performed on day of life 3, 10, 28 and 36 weeks corrected age. NTproBNP levels analysed for prediction of HsPDA. The effect of gestational age, ventilation, hypoxia, bronchopulmonary dysplasia (BPD), creatinine and haemoglobin levels on NTproBNP levels were investigated. Infants with HsPDA had higher mean (SD) day 3 NTproBNP (1840 pmol/L (1058) versus 178 pmol/L (140) p < 0.001). Receiver operator curves of day 3 NTproBNP for prediction of day 3 and day 10 HsPDA had an area under the curve of 0.98 and 0.94, respectively. A chosen day 3 NTproBNP value of ≥ 287 pmol/L for the prediction of day 3 HsPDA correctly classified 92% (sensitivity 92%, specificity 92%). NTproBNP demonstrated only modest ability to predict severe BPD. Chronological but not gestational age affected NTproBNP. Ventilation, hypoxia and haemoglobin levels did not influence NTproBNP but creatinine level was positively correlated. CONCLUSION Day 3 NTproBNP is a useful biomarker to predict HsPDA and may be a valuable tool in future trial design. What is Known: • NTproBNP is a cardiac hormone used to diagnose and monitor cardiac dysfunction in adults and has been shown to be higher in premature infants with haemodynamically significant ductus arteriosus (HsPDA). What is new: • NTproBNP is highly predictive of ultrasound-defined HsPDA and may be a useful tool for further triage • Early NTproBNP higher in infants who develop severe BPD and with renal impairment but not affected by gestational age, recent exposure to hypoxia or haemoglobin levels while late levels unexpectedly higher in those without BPD or HsPDA.
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Affiliation(s)
| | - Kiran More
- Neonatal Unit, Christchurch Women's Hospital, Christchurch, New Zealand
| | - Bronwyn Dixon
- Neonatal Unit, Christchurch Women's Hospital, Christchurch, New Zealand
| | - Richard Troughton
- University of Otago, Christchurch, New Zealand.,Department of Cardiology, Christchurch Hospital, Christchurch, New Zealand
| | | | | | - Nicola Ellis
- Neonatal Unit, Christchurch Women's Hospital, Christchurch, New Zealand
| | - Nicola Austin
- Neonatal Unit, Christchurch Women's Hospital, Christchurch, New Zealand
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Aditya I, Tat V, Sawana A, Mohamed A, Tuffner R, Mondal T. Use of Doppler velocimetry in diagnosis and prognosis of intrauterine growth restriction (IUGR): A Review. J Neonatal Perinatal Med 2017; 9:117-26. [PMID: 27197939 DOI: 10.3233/npm-16915132] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Intrauterine growth restriction (IUGR) is a condition which has been difficult to assess at an early stage, resulting in the delivery of children who have poor genetic growth potential. Currently, IUGR classification is based upon the system of ultrasound biometry. Doppler velocimetry allows the measurement of hemodynamic flow of major fetal vessels, comparing the flow indices and patterns of normal and IUGR cases. In this review, the effectiveness of Doppler velocimetry in assessing blood flow in major vessels including the umbilical artery, ductus venosus, and middle cerebral artery was studied for both diagnostic and prognostic screening of IUGR. The umbilical artery is the most frequently studied vessel in Doppler velocimetry due to its accessibility and the strength of its associations with fetal outcomes. Abnormalities in the ductus venosus waveform can be indicative of increased resistance in the right atrium due to placental abnormalities. The middle cerebral artery is the most studied fetal cerebral artery and can detect cerebral blood flow and direction, which is why these three vessels were selected to be examined in this context. A potential mathematical model could be developed to incorporate these Doppler measurements which are indicative of IUGR, in order to reduce perinatal mortality. The purpose of the proposed algorithm is to integrate Doppler velocimetry with biophysical profiling in order to determine the optimal timing of delivery, thus reducing the risks of adverse perinatal outcomes.
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N-terminal pro-B-type natriuretic peptide in amniotic fluid of fetuses with known or suspected cardiac load. PLoS One 2017; 12:e0177253. [PMID: 28545116 PMCID: PMC5436674 DOI: 10.1371/journal.pone.0177253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/25/2017] [Indexed: 12/14/2022] Open
Abstract
Background Myocardial dysfunction occurs in a variety of fetal disorders. Findings from adult cardiology, where n-terminal pro-B-type natriuretic peptide (nt-proBNP) is an established biomarker of left ventricular dysfunction have been extended to fetal life. Since fetal blood sampling is technically challenging we investigated amniotic fluid nt-proBNP for its suitability to diagnose fetal myocardial dysfunction. Methods Ultrasound, Doppler examination and echocardiography was applied to classify cases and controls. Amniotic fluid nt-proBNP to amniotic fluid total protein ratio was calculated and compared to the gestational age-dependent reference intervals. In a subset of cases, fetal and maternal plasma nt-proBNP levels were determined. Results Specimen from 391 fetuses could be analyzed (171 cases, 220 controls). There was a high correlation between amniotic fluid and fetal blood nt-proBNP levels (r = 0.441 for cases; r = 0.515 for controls), whereas no correlation could be detected between maternal and fetal (blood and amniotic fluid) nt-proBNP concentrations. Specificity and positive likelihood ratio of amniotic fluid nt-proBNP to amniotic fluid total protein ratio were high (0.97 and 4.3, respectively). Conclusion Amniotic fluid nt-proBNP measurement allows diagnostic confirmation of fetal myocardial dysfunction. It may serve as a useful adjunct in addition and correlation to existing tests of myocardial function, particularly in the context of invasive fetal therapy, where access to the amniotic cavity is part of the procedure.
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Perinatal outcome and cardiac dysfunction in preterm growth-restricted neonates in relation to placental impairment severity. An Pediatr (Barc) 2016. [DOI: 10.1016/j.anpede.2015.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Intrauterine growth restriction: impact on cardiovascular development and function throughout infancy. Pediatr Res 2016; 79:821-30. [PMID: 26866903 DOI: 10.1038/pr.2016.24] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 12/05/2015] [Indexed: 01/08/2023]
Abstract
Intrauterine growth restriction (IUGR) refers to the situation where a fetus does not grow according to its genetic growth potential. One of the main causes of IUGR is uteroplacental vascular insufficiency. Under these circumstances of chronic oxygen and nutrient deprivation, the growth-restricted fetus often displays typical circulatory changes, which in part represent adaptations to the suboptimal intrauterine environment. These fetal adaptations aim to preserve oxygen and nutrient supply to vital organs such as the brain, the heart, and the adrenals. These prenatal circulatory adaptations are thought to lead to an altered development of the cardiovascular system and "program" the fetus for life long cardiovascular morbidities. In this review, we discuss the alterations to cardiovascular structure, function, and control that have been observed in growth-restricted fetuses, neonates, and infants following uteroplacental vascular insufficiency. We also discuss the current knowledge on early life surveillance and interventions to prevent progression into chronic disease.
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Blohm ME, Arndt F, Sandig J, Diehl W, Zeller T, Mueller GC, Schlesner C, Mir TS, Blankenberg S, Hecher K, Singer D, Weil J. Cardiovascular biomarkers in paired maternal and umbilical cord blood samples at term and near term delivery. Early Hum Dev 2016; 94:7-12. [PMID: 26851448 DOI: 10.1016/j.earlhumdev.2016.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 12/18/2015] [Accepted: 01/05/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Cardiovascular biomarkers might help to identify fetuses or pregnancies at risk. AIM To examine the umbilical cord neonatal and maternal levels of cardiovascular biomarkers at the time of delivery, and to correlate maternal and fetal biomarker levels to each other, to gestational age and to delivery mode. STUDY DESIGN In a prospective, observational, cross-sectional, single-center study biomarkers were measured in paired maternal and umbilical venous cord blood samples. SUBJECTS The sample cohort included 66 sets of fetal and maternal blood samples (11 after multiple gestation, 53 after cesarean section, 17 after exposure to labor). OUTCOME MEASURES Midregional pro-adrenomedullin (MRproADM), midregional-pro atrial natriuretic peptide (MRproANP), brain natriuretic peptide (BNP), n-terminal-pro brain natriuretic peptide (NTproBNP), copeptin, and high sensitive troponin I (hsTnI) levels were measured. RESULTS Mean ± SEM for biomarker levels in umbilical venous/maternal blood were: MRproADM [nmol/L] 1.02 ± 0.04/1.24 ± 0.08, MRproANP [pmol/L] 215.53 ± 12.96/54.65 ± 3.41, BNP [pg/mL] 32.02 ± 3.37/19.76 ± 3.29, NTproBNP [pg/mL] 1228.94 ± 91.73/71.48 ± 8.65, copeptin [pmol/L] 103.42 ± 22.89/10.41 ± 1.71, and hsTnI [pg/mL] 13.54 ± 5.17/4.91 ± 2.37. Fetal MRproANP, NTproBNP, and BNP were inversely correlated with gestational age. Maternal and fetal MRproANP (r=0.472, p=0.002) and copeptin (r=0.572, p<0.001) levels were correlated, whereas there was no feto-maternal correlation for the other biomarkers. Fetal copeptin was elevated after exposure to labor. CONCLUSIONS Biomarker levels appear to be regulated independently in mother and fetus. Fetal biomarkers are influenced by gestational age and delivery mode. In this study on term and near term pregnancies without specific fetal pathology, correlation between paired maternal and fetal biomarker levels was weak or not demonstrable.
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Affiliation(s)
- Martin E Blohm
- University Children's Hospital, Department of Pediatrics, Division of Neonatology and Pediatric Intensive Care, University Medical Center Hamburg-Eppendorf, Martinistr. 52, Hamburg 20246, Germany.
| | - Florian Arndt
- University Heart Center, Clinic for Pediatric Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Sandig
- University Children's Hospital, Department of Pediatrics, Division of Neonatology and Pediatric Intensive Care, University Medical Center Hamburg-Eppendorf, Martinistr. 52, Hamburg 20246, Germany
| | - Werner Diehl
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tanja Zeller
- University Heart Center, Clinic for General and Interventional Cardiology, German Center for Cardiovascular Research (DZHK), Partner Sites Hamburg, Lübeck, Kiel, Hamburg, Germany
| | - Goetz C Mueller
- University Heart Center, Clinic for Pediatric Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Claudia Schlesner
- University Heart Center, Clinic for Pediatric Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas S Mir
- University Heart Center, Clinic for Pediatric Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Stefan Blankenberg
- University Heart Center, Clinic for General and Interventional Cardiology, German Center for Cardiovascular Research (DZHK), Partner Sites Hamburg, Lübeck, Kiel, Hamburg, Germany
| | - Kurt Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Dominique Singer
- University Children's Hospital, Department of Pediatrics, Division of Neonatology and Pediatric Intensive Care, University Medical Center Hamburg-Eppendorf, Martinistr. 52, Hamburg 20246, Germany
| | - Jochen Weil
- University Heart Center, Clinic for Pediatric Cardiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Candel Pau J, Castillo Salinas F, Perapoch López J, Carrascosa Lezcano A, Sánchez García O, Llurba Olivé E. [Perinatal outcome and cardiac dysfunction in preterm growth-restricted neonates in relation to placental impairment severity]. An Pediatr (Barc) 2015; 85:170-180. [PMID: 25982472 DOI: 10.1016/j.anpedi.2015.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 03/25/2015] [Accepted: 03/27/2015] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Intrauterine growth restriction (IUGR) and prematurity have been associated with increased perinatal morbidity and mortality and also with cardiovascular foetal programming. However, there are few studies on the impact of placenta-related IUGR on perinatal outcomes and cardiovascular biomarkers in pre-term infants. OBJECTIVES To determine differences in neonatal morbidity, mortality and cord blood biomarkers of cardiovascular dysfunction between pre-term placenta-related IUGR and non-IUGR new-borns, and to analyse their relationship with the severity of IUGR according to foetal Doppler evaluation. MATERIAL AND METHODS Prospective cohort study: pre-term infants with placenta-related IUGR and matched pre-term infants without IUGR. A Doppler scan was performed, and placenta-IUGR was classified according to severity. Comparative analysis of perinatal outcomes, neonatal morbidity and mortality, and cord blood levels of biomarkers of cardiovascular dysfunction was performed. RESULTS IUGR new-borns present lower weight, length, head circumference, and Apgar score at birth, as well as increased neonatal and cardiovascular dysfunction biomarker levels, compared with pre-term new-borns without IUGR. These differences increase with the severity of IUGR determined by prenatal umbilical artery Doppler scan. CONCLUSIONS Placenta-related-IUGR pre-term infants, irrespective of gestational age, present increased neonatal morbidity and mortality that is significantly proportional to the severity of IUGR. Placental impairment and severity also determine levels of cardiovascular dysfunction biomarkers at birth.
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Affiliation(s)
- Júlia Candel Pau
- Fundación Institut de Recerca de la Vall d'Hebron (VHIR), Barcelona, España.
| | - Félix Castillo Salinas
- Servicio de Neonatología, Hospital Universitario Vall d'Hebron, Barcelona, España; Universidad Autónoma de Barcelona, Barcelona, España
| | - Josep Perapoch López
- Servicio de Neonatología, Hospital Universitario Vall d'Hebron, Barcelona, España; Red de Salud Materno Infantil y del Desarrollo (RED SAMID), Barcelona, España
| | - Antonio Carrascosa Lezcano
- Servicio de Pediatría y Endocrinología Pediátrica, Hospital Universitario Vall d'Hebron, Barcelona, España; Universidad Autónoma de Barcelona, Barcelona, España; CIBERER, Barcelona, España
| | - Olga Sánchez García
- Fundación Institut de Recerca de la Vall d'Hebron (VHIR), Barcelona, España; Red de Salud Materno Infantil y del Desarrollo (RED SAMID), Barcelona, España
| | - Elisa Llurba Olivé
- Servicio de Obstetricia y Ginecología, Hospital Universitario Vall d'Hebron, Barcelona, España; Red de Salud Materno Infantil y del Desarrollo (RED SAMID), Barcelona, España; Universidad Autónoma de Barcelona, Barcelona, España
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11
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Merz WM, Leufgen C, Fimmers R, Stoffel-Wagner B, Gembruch U. Reference intervals for N-terminal pro-B-type natriuretic peptide in amniotic fluid between 10 and 34 weeks of gestation. PLoS One 2014; 9:e114416. [PMID: 25490554 PMCID: PMC4260852 DOI: 10.1371/journal.pone.0114416] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 11/10/2014] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND In adult and pediatric cardiology, n-terminal pro-B-type natriuretic peptide (nt-proBNP) serves as biomarker in the diagnosis and management of cardiovascular dysfunction. Elevated levels of circulating nt-proBNP are present in fetal conditions associated with myocardial pressure or volume load. Compared to fetal blood sampling, amniocentesis is technically easier and can be performed from early pregnancy onwards. We aimed to investigate amniotic fluid (AF) nt-proBNP concentrations in normal pregnancies between 10 and 34 weeks of gestation. METHODS Nt-proBNP and total protein (TP) was measured in AF by chemiluminescence assay (photometry, respectively). To adjust for a potential dilutional effect, the AF-nt-proBNP/AF-TP ratio was analyzed. Reference intervals were constructed by regression modeling across gestational age. RESULTS 132 samples were analyzed. A negative correlation between AF-nt-proBNP/AF-TP ratio and gestational age was observed. Curves for the mean and the 5% and 95% reference interval between 10 and 34 weeks of gestation were established. CONCLUSION In normal pregnancy, nt-proBNP is present in AF and decreases during gestation. Our data provide the basis for research on AF-nt-proBNP as biomarker in fetal medicine.
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Affiliation(s)
- Waltraut M. Merz
- Department of Obstetrics and Prenatal Medicine, University Bonn Medical School, Bonn, Germany
| | - Christina Leufgen
- Department of Obstetrics and Prenatal Medicine, University Bonn Medical School, Bonn, Germany
| | - Rolf Fimmers
- Institute for Medical Biometry, Informatics and Epidemiology, University Bonn Medical School, Bonn, Germany
| | - Birgit Stoffel-Wagner
- Institute for Clinical Chemistry and Pharmacology, University Bonn Medical School, Bonn, Germany
| | - Ulrich Gembruch
- Department of Obstetrics and Prenatal Medicine, University Bonn Medical School, Bonn, Germany
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12
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Merz WM, Gembruch U. Old tool - new application: NT-proBNP in fetal medicine. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2014; 44:377-385. [PMID: 24919683 DOI: 10.1002/uog.13443] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 05/29/2014] [Accepted: 06/05/2014] [Indexed: 06/03/2023]
Affiliation(s)
- W M Merz
- Department of Obstetrics and Prenatal Medicine, University Bonn Medical School, Bonn, Germany
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13
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Fan X, Zhou Q, Zeng S, Zhou J, Peng Q, Zhang M, Ding Y. Impaired fetal myocardial deformation in intrahepatic cholestasis of pregnancy. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2014; 33:1171-1177. [PMID: 24958403 DOI: 10.7863/ultra.33.7.1171] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES To investigate changes in fetal myocardial deformation in intrahepatic cholestasis of pregnancy. METHODS Patients with intrahepatic cholestasis of pregnancy were divided into 2 groups according to the total maternal serum bile acid concentration: mild cholestasis (10-40 μmol/L) and severe cholestasis (>40 μmol/L). Fetal echocardiography and velocity vector imaging were performed on women with cholestasis and control patients. The left ventricular global longitudinal strain and strain rate were measured. Clinical characteristics, maternal serum bile acid levels, and N-terminal pro-brain natriuretic peptide (NT-proBNP) levels in umbilical vein blood were compared between groups. The relationships among fetal myocardial deformation, maternal total bile acids, and cord NT-proBNP were analyzed. RESULTS Twenty women with mild cholestasis, 20 with severe cholestasis, and 40 control patients were enrolled. There were no significant differences in maternal and gestational ages between the case and control groups. Maternal bile acids and NT-proBNP were significantly higher in fetuses of mothers with cholestasis than control fetuses. The left ventricular longitudinal strain (-10.56% ± 1.83% versus -18.36% ± 1.11%; P < .01), systolic strain rate (-1.63 ± 0.18 versus -2.04 ± 0.18 secondsz(-1); P < .01), and diastolic strain rate (1.37 ± 0.18 versus 1.83 ± 0.14 seconds(-1); P < .01) were significantly decreased in fetuses with severe cholestasis compared with control fetuses. There were positive correlations between fetal myocardial deformation and maternal total bile acids (r = 0.705, 0.643, and 0.690, respectively; P < .01) and between myocardial deformation and NT-proBNP (r = 0.672, 0.643, and 0.647; P < .01). CONCLUSIONS Fetal myocardial deformation is impaired in severe intrahepatic cholestasis of pregnancy. Further investigation is needed to determine whether fetal echocardiography and velocity vector imaging can help predict which fetuses of mothers with cholestasis are likely to have poor outcomes.
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Affiliation(s)
- Xuemei Fan
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
| | - Qichang Zhou
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China.
| | - Shi Zeng
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
| | - Jiawei Zhou
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
| | - Qinghai Peng
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
| | - Ming Zhang
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
| | - Yiling Ding
- Departments of Ultrasonography (X.F., Q.Z., S.Z., J.Z., Q.P., M.Z.) and Obstetrics and Gynecology (Y.D.), Second Xiangya Hospital, Central South University, Changsha, China
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Menendez-Castro C, Toka O, Fahlbusch F, Cordasic N, Wachtveitl R, Hilgers KF, Rascher W, Hartner A. Impaired myocardial performance in a normotensive rat model of intrauterine growth restriction. Pediatr Res 2014; 75:697-706. [PMID: 24603294 DOI: 10.1038/pr.2014.27] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 11/01/2013] [Indexed: 01/21/2023]
Abstract
BACKGROUND Intrauterine growth restriction (IUGR) is an important risk factor for cardiovascular disease. Previous studies revealed altered myocardial matrix composition after IUGR. We hypothesized that IUGR is accompanied by compromised myocardial performance independently from arterial hypertension. METHODS IUGR was induced in Wistar rats by maternal protein restriction, and hearts of male offspring were studied using echocardiography, immunohistochemistry, real-time PCR, and western blot analysis. RESULTS At day 70 of life, in the absence of arterial hypertension (mean arterial blood pressure: 101.3 ± 7.1 mmHg in IUGR vs. 105.3 ± 4.6 mmHg in controls, not significant (NS)), echocardiography showed a reduced contractility (ejection fraction: 65.4 ± 1.8% in IUGR vs. 82.2 ± 1.5% in controls, P < 0.001) of a more distensible myocardium in IUGR rats. Altered expression patterns of myosin chains and titin isoforms and increased expression levels of atrial natriuretic peptide, Na/K-ATPase, and β-adrenergic receptor 1 were detected. A higher number of cardiac fibroblasts and vascular cross-sections were observed in IUGR rats, accompanied by elevated expression of hypoxia inducible factor 1 target genes, such as vascular endothelial growth factor and its receptors. CONCLUSION We observed a blood pressure-independent impairment of myocardial function after IUGR, which possibly favors cardiovascular disease later in life. Some IUGR-induced myocardial changes (e.g., sarcomeric components) may partly explain the compromised cardiac performance, whereas others (e.g., elevated vascular supply) reflect compensatory mechanisms.
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Affiliation(s)
- Carlos Menendez-Castro
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Okan Toka
- Department of Pediatric Cardiology, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Fabian Fahlbusch
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Nada Cordasic
- Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Wachtveitl
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Karl F Hilgers
- Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Wolfgang Rascher
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Andrea Hartner
- Department of Pediatrics and Adolescent Medicine, University of Erlangen-Nürnberg, Erlangen, Germany
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15
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Costa VN, Nomura RMY, Miyadahira S, Vieira Francisco RP, Zugaib M. Cord blood B-type natriuretic peptide levels in placental insufficiency: correlation with fetal Doppler and pH at birth. Eur J Obstet Gynecol Reprod Biol 2013; 171:231-4. [PMID: 24054827 DOI: 10.1016/j.ejogrb.2013.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 07/18/2013] [Accepted: 09/02/2013] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To examine the correlation of cardiac B-type natriuretic peptide (BNP) concentrations in umbilical cord blood at birth with fetal Doppler parameters and pH at birth. STUDY DESIGN Prospective cross-sectional study with the following inclusion criteria: women with a singleton pregnancy, placental insufficiency characterized by increased pulsatility index (PI) of the umbilical artery (UA), intact membranes, and absence of fetal abnormalities. The exclusion criteria kept out cases of newborns with postnatal diagnosis of abnormality and cases in which the blood analysis was not performed. The Doppler parameters used were the UA PI, middle cerebral artery (MCA) PI, cerebroplacental ratio (CPR), and ductus venosus (DV) PI for veins (PIV), all converted into zeta scores. Blood samples were obtained from the umbilical cord immediately after delivery to measure the pH of the UA and the BNP. RESULTS Thirty-two pregnancies with placental insufficiency were included, 21 (65%) with positive diastolic flow and 11 (35%) with absent or reversed end diastolic flow in the UA. The concentration of BNP correlated significantly with the UA PI z-score (rho=0.43, P=0.016), the CPR z-score (rho=-0.35, P=0.048), the DV PIV z-score (rho=0.61, P<0.001), pH at birth (rho=-0.39, P=0.031), and gestational age (rho=-0.51, P=0.003). In the multiple regression analysis, antenatal parameters were included; the DV PIV z-score (P=0.008) was found to be an independent parameter correlating with BNP at birth. Correlation between BNP and the DV PIV z-score was borne out by the regression equation Log[BNP]=2.34+0.13*DV (F=18.8, P<0.001). Correlation between BNP and pH at birth was confirmed by the regression equation Log[BNP]=21.36-2.62*pH (F=7.69, P=0.01). CONCLUSION The results suggest that fetal cardiac dysfunction identified by BNP concentrations at birth correlated independently with changes in DV PIV and correlated negatively with pH values at birth.
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Affiliation(s)
- Verbenia N Costa
- Department of Obstetrics and Gynecology, School of Medicine, University of São Paulo, São Paulo, SP, Brazil
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