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Chambon E, Hachem T, Salvador E, Rigourd V, Bellanger C, Stirnemann J, Kermorvant-Duchemin E, Tissieres P, Ville Y, Lapillonne A. Neonatal Hemodynamic Characteristics of the Recipient Twin of Twin-To-Twin Transfusion Syndrome Not Treated with Fetoscopic Laser Surgery. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9111766. [PMID: 36421215 PMCID: PMC9689049 DOI: 10.3390/children9111766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022]
Abstract
Background: This paper’s intent is to describe the neonatal hemodynamic characteristics of recipient twins of monochorionic pregnancies complicated with twin-to-twin transfusion syndrome (TTTS), born without prenatal fetoscopic selective laser coagulation (FSLC). Methods: Retrospective analysis of hemodynamic characteristics was performed during the first five days of life of recipient twins from untreated TTTS. Results: Forty-two recipient twins were included and divided into three groups: no hemodynamic impairment (NoHI) (n = 15, 36%), isolated high blood pressure (HighBP) (n = 12, 28%), and cardiac failure group (CF) (n = 15, 36%). Patients of both CF and HighBP groups had high systolic blood pressure during the first 12 h of life and ventricular hypertrophy at early echocardiography. Cardiac failure occurred at a median age of 14 h (IQR = 6−24) and was followed by a drop in systolic and diastolic blood pressure. Acute kidney injury was more frequent (93% vs. 25%, p < 0.001) and severe (p <0.001) in the CF group than in the HighBP group. The mortality rate in the CF group was 40%. Factors associated with CF were twin anemia-polycythemia sequence (p = 0.012), very preterm birth (p = 0.040), and polycythemia (p = 0.002). Conclusion: One-third of recipient twins born without prenatal FSLC developed life-threatening cardiac failure during the first 24 h of life.
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Affiliation(s)
- Edouard Chambon
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Taymme Hachem
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Elodie Salvador
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Virginie Rigourd
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Claire Bellanger
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Julien Stirnemann
- Department of Obstetrics and Fetal Medicine, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
- UFR de médecine, Université Paris Cité, Site Cordeliers, 75006 Paris, France
| | - Elsa Kermorvant-Duchemin
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
- UFR de médecine, Université Paris Cité, Site Cordeliers, 75006 Paris, France
| | - Pierre Tissieres
- Pediatric Intensive Care Unit, APHP Bicêtre University Hospital, 94270 Le Kremlin-Bicêtre, France
- UFR de médecine, Université de Paris Saclay, 94270 Le Kremlin-Bicêtre, France
| | - Yves Ville
- Department of Obstetrics and Fetal Medicine, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
- UFR de médecine, Université Paris Cité, Site Cordeliers, 75006 Paris, France
| | - Alexandre Lapillonne
- Neonatal Intensive Care Unit, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
- UFR de médecine, Université Paris Cité, Site Cordeliers, 75006 Paris, France
- Correspondence: ; Tel.: +33-1-71-19-61-74
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Torres X, Bennasar M, Bautista-Rodríguez C, Martínez-Portilla RJ, Gómez O, Micheletti T, Eixarch E, Crispi F, Gratacós E, Martínez JM. The heart after surviving twin-to-twin transfusion syndrome. Am J Obstet Gynecol 2022; 227:502.e1-502.e25. [PMID: 35351412 DOI: 10.1016/j.ajog.2022.03.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND The persistent changes in cardiac structure and function in children who survived twin-to-twin transfusion syndrome remain a matter of concern and controversy. Current fetal echocardiographic parameters and their postnatal evolution can help improve our understanding of the subject. OBJECTIVE To describe the echocardiographic changes of monochorionic fetuses affected by twin-to-twin transfusion syndrome, the recipient and the donor, before and after laser photocoagulation and to determine their evolution in the third trimester and during their first year of life. STUDY DESIGN An observational study was conducted including 55 uncomplicated monochorionic diamniotic twins and 78 pairs with twin-to-twin transfusion syndrome, 44 stage I-II and 34 stage III-IV, prospectively enrolled from 2015 until 2018. Comprehensive echocardiography was performed at 4 time periods: before laser photocoagulation, at 24 to 72 hours after surgery, at 28 to 30 weeks of gestation, and at 6 to 12 months after birth. Echocardiographic parameters were transformed to z-scores or indexed for heart area, estimated fetal weight, or body mass surface. RESULTS At diagnosis, recipients in all stages presented larger hearts (cardiothoracic ratio z-score: 2.77 [0.8] vs controls: -0.03 [0.5]; P<.001) and signs of ventricular hypertrophy (left end-diastolic ventricle wall thickness: 2.68 [0.7] vs controls -0.03 [0.7]; P<.001), along with systolic (cardiac index recipients: 317 [114] mL/min/kg vs controls: 400 [120] mL/min/kg, P<.001) and diastolic impairment (isovolumetric relaxation time z-score: 2.76 [0.6] vs controls: 0.05 [0.6]; P<.001). Donors presented smaller ventricular areas and diameters when compared with controls (left end-diastolic ventricle area z-score: -1.48 [1] vs 0.03 [0.9]; P<.001), along with decreased longitudinal motion (tricuspid annular plane systolic excursion z-score: -0.9 [1] vs controls -0.04 [1]; P<.001) and shorter ejection time z-score (-1.5 [0.7] vs controls: 0.0 [0.7]; P<.001). After surgery, an improvement in functional parameters was observed in both fetuses, whereas most morphometric changes prevailed in donors and recipients in the prenatal period. Postnatally, cardiac remodeling persisted in recipients (left relative wall thickness: 0.34 [0.02] vs controls: 0.30 [0.02]; P<.001), whereas donors mainly presented a decreased longitudinal motion in infancy (tricuspid annular plane systolic excursion z-score: -0.72 [0.7] vs controls: 0.23 [0.9]; P<.05). CONCLUSION Cardiac remodeling is present in both fetuses at the twin-to-twin transfusion syndrome diagnosis, whereas diastolic dysfunction is only significant in the recipient. Fetal therapy improves most echocardiographic parameters, although postnatally, the echocardiographic changes persist in both fetuses.
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Affiliation(s)
- Ximena Torres
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Mar Bennasar
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain.
| | - Carles Bautista-Rodríguez
- Paediatric Cardiology Services, Royal Brompton Hospital, London, United Kingdom; National Heart and Lung Institute, Imperial College, London, United Kingdom
| | - Raigam J Martínez-Portilla
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Olga Gómez
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Talita Micheletti
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Elisenda Eixarch
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Fátima Crispi
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Eduard Gratacós
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
| | - Josep M Martínez
- Fetal Medicine Research Center, BCNatal - Barcelona Center for Maternal-Fetal and Neonatal Medicine (Hospital Clínic and Hospital Sant Joan de Deu), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER), Barcelona, Spain
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Abstract
The blood pressure (BP) of neonates, especially those born premature, changes rapidly over the first days and weeks of life. Neonatal BPs may be affected by maternal factors, perinatal factors or events, and intrinsic or extrinsic infant factors. Unfortunately, the effect of many maternal health and disease states has only been studied in small numbers or has shown conflicting results. Many events around the time of delivery have the potential to influence the neonatal BP, and while definitive studies are often lacking, some observational data support physiological expectations. The strongest determinants of neonatal BP are the infant factors of gestational age at birth, birth weight, and postmenstrual age. Understanding the expected pattern of BP changes, identifying the potential influencing factors, and accurately measuring the BP are all essential to determine whether there is a BP abnormality present but are also more complex in the neonatal population. This review describes the evidence for maternal conditions, perinatal events, and infant factors to affect neonatal BP. It also explains what is currently known about the changing BP patterns in neonates including those born preterm. In addition, by examining the physiological process of hemodynamic adaptation to the extrauterine environment and compensatory cardiovascular responses, we can gain insight into the expected and unexpected vascular responses, making the variability of neonatal BP seem a little more predictable.
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Affiliation(s)
- Janis M Dionne
- Department of Pediatrics, Division of Nephrology, University of British Columbia, BC Children's Hospital, Vancouver, British Columbia, Canada
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Complications of Monochorionic Diamniotic Twins: Stepwise Approach for Early Identification, Differential Diagnosis, and Clinical Management. MATERNAL-FETAL MEDICINE 2020. [DOI: 10.1097/fm9.0000000000000076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Abstract
Blood pressure (BP) is routinely measured in newborn infants. Published BP nomograms demonstrate a rise in BP following delivery in healthy infants at all gestational ages (GA) and evidence that BP values are higher with increasing birth weight and GA. However, the complex physiology that occurs in newborn infants and range of BP values observed at all GA make it difficult to identify "normal" BP for a specific infant at a specific time under specific conditions. As such, complete hemodynamic assessment should include the physical examination, perinatal history, other vital signs, and laboratory values in addition to BP values.
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Affiliation(s)
- Beau Batton
- Department of Pediatrics, Southern Illinois University School of Medicine, PO Box 19676, Springfield, IL 62794, USA.
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Korček P, Širc J, Straňák Z. Cerebral oxygenation reflects fetal development in preterm monochorionic and dichorionic twins. Early Hum Dev 2020; 144:105025. [PMID: 32298945 DOI: 10.1016/j.earlhumdev.2020.105025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Cerebral oxygenation (crSO2) monitoring is increasingly used in high-risk infants. Monochorionic twins suffer from specific fetal pathologies that can affect cerebral hemodynamics. Limited data are available on crSO2 and blood flow patterns in this population after birth. OBJECTIVE To evaluate crSO2 changes in preterm monochorionic and dichorionic twins during the first 72 h of life. METHODS Near-infrared spectroscopy was used to measure crSO2 in 62 infants from 31 twin pregnancies <32 weeks of gestation. The study group was divided into 4 subgroups: donor (1) and recipient (2) monochorionic twins (with twin-twin transfusion syndrome), fetal growth restriction (FGR) infants (3) and twins without fetal compromise (4). RESULTS There was significant difference in birth weight (p < 0.001) among 4 subgroups. We observed significant variation in crSO2 among the subgroups using mixed model analysis (p < 0.001). The recipient twins exhibited the lowest crSO2 (mean ± SE) throughout the study period (76 ± 0.3%), whereas the FGR and donor twins presented with the highest values (86 ± 0.3% and 83 ± 0.4% respectively). We found no statistically significant differences in neonatal mortality and morbidity among subgroups. CONCLUSION Our study revealed significant correlation between crSO2 values postnatally and underlying fetal pathology in monochorionic and dichorionic preterm twins.
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Affiliation(s)
- Peter Korček
- Institute for the Care of Mother and Child - Neonatology, Podolské nábřeží 157/36, Prague 14700, Czech Republic; 3rd Faculty of Medicine - Charles University, Ruská 2411/87, Prague 10000, Czech Republic.
| | - Jan Širc
- Institute for the Care of Mother and Child - Neonatology, Podolské nábřeží 157/36, Prague 14700, Czech Republic; 3rd Faculty of Medicine - Charles University, Ruská 2411/87, Prague 10000, Czech Republic
| | - Zbyněk Straňák
- Institute for the Care of Mother and Child - Neonatology, Podolské nábřeží 157/36, Prague 14700, Czech Republic; 3rd Faculty of Medicine - Charles University, Ruská 2411/87, Prague 10000, Czech Republic
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7
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Renal functional markers in extremely premature infants with and without twin-twin transfusion syndrome. J Perinatol 2020; 40:256-262. [PMID: 31616050 DOI: 10.1038/s41372-019-0524-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 09/25/2019] [Accepted: 09/27/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Describe renal function of preterm infants <29 weeks of gestational age (GA) with twin-twin transfusion syndrome (TTTS) who received laser therapy. DESIGN Retrospective analysis of premature TTTS compared with dichorionic-diamniotic (di-di) twins from 2006 to 2015. Primary outcome was biomarkers of renal injury. RESULTS Thirty-three TTTS-laser and 101 di-di newborns with similar GA at birth (26.4 ± 1.4 vs 26.9 ± 1.6 weeks, p = 0.07) were included. Creatinine and urea levels were higher in TTTS-laser group at day of life (DOL) 2-7 (123.5 ± 12.4 vs 75.8 ± 2 μmol/L, p = 0.0001 and 11.9 ± 1.1 mmol/L vs 8.7 ± 0.3 mmol/L, p = 0.0001) and DOL 8-14, (98.1 ± 14.2 vs 64.8 ± 2.3 μmol/L, p = 0.0001 and 9.1 ± 1.2 vs 5.4 ± 0.3 mmol/L, p = 0.0001). There was a significant effect of TTTS status on creatinine level at DOL 8-14. CONCLUSION In extremely preterm with TTTS treated by laser, biomarkers of renal function were higher compared with di-di twins in the first 2 weeks of life.
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Hecher K, Gardiner HM, Diemert A, Bartmann P. Long-term outcomes for monochorionic twins after laser therapy in twin-to-twin transfusion syndrome. THE LANCET CHILD & ADOLESCENT HEALTH 2018; 2:525-535. [PMID: 30169324 DOI: 10.1016/s2352-4642(18)30127-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/09/2018] [Accepted: 04/03/2018] [Indexed: 12/28/2022]
Abstract
Twin-to-twin transfusion syndrome typically occurs in the second trimester in 10-15% of monochorionic twin pregnancies. Vascular anastomoses of monochorionic placentae are the underlying cause of the development of the syndrome. If a blood flow imbalance occurs, one fetus becomes the so-called donor twin and the other the recipient. If untreated, perinatal mortality is 80-90%. Fetoscopic laser coagulation of the vascular anastomoses destroys the cause of the syndrome and leads to dual twin survival rates of around 70% and more than 90% of pregnancies with at least one survivor. However, unequal placental sharing, intrauterine death, and severe prematurity are still limiting factors for further improvement of survival rates and decreases in long-term morbidity. Prematurity and neurodevelopmental impairment affect the donor and recipient twins, whereas cardiovascular failure and obstruction of the right ventricular outflow tract are typical complications of recipients, which can lead to long-term morbidity. In this Review, we summarise the literature on follow-up data for survivors of twin-to-twin-transfusion syndrome after laser therapy, including neurodevelopmental outcomes, cardiovascular outcomes, growth, renal function, and ischaemic events, as well as the potential effects of intrauterine programming on later life.
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Affiliation(s)
- Kurt Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Helena M Gardiner
- Fetal Center at Children's Memorial Herman Hospital, McGovern Medical School at UTHealth, University of Texas Health Sciences Center, Houston, TX, USA
| | - Anke Diemert
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter Bartmann
- Children's Hospital, University Hospital Bonn, Bonn, Germany
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Kawamura H, Ishii K, Mabuchi A, Yamamoto R, Hayashi S, Mitsuda N. Perinatal outcome of monochorionic diamniotic twin pregnancies complicated with isolated amniotic fluid volume abnormality of one twin less than 26 weeks of gestation. J Obstet Gynaecol Res 2016; 42:1657-1665. [DOI: 10.1111/jog.13106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/18/2016] [Accepted: 06/19/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Hiroshi Kawamura
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
| | - Keisuke Ishii
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
| | - Aki Mabuchi
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
| | - Ryo Yamamoto
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
| | - Shusaku Hayashi
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
| | - Nobuaki Mitsuda
- Department of Maternal Fetal Medicine; Osaka Medical Center and Research Institute for Maternal and Child Health; Osaka Japan
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10
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Wohlmuth C, Osei FA, Moise KJ, Johnson A, Papanna R, Bebbington M, Gardiner HM. Aortic distensibility as a surrogate for intertwin pulse pressure differences in monochorionic pregnancies with and without twin-twin transfusion syndrome. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2016; 48:193-199. [PMID: 26663469 DOI: 10.1002/uog.15836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 11/21/2015] [Accepted: 12/04/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES Twin-twin transfusion syndrome (TTTS) complicates 10-15% of monochorionic diamniotic (MCDA) twin pregnancies. The donor response to hypovolemia allows the transfer of vasoactive mediators to the recipient, causing increased recipient afterload and hypertension. Our objective was to apply a novel speckle-tracking technique to measure the aortic fractional area change (AFAC) during the cardiac cycle in MCDA twins with and without TTTS, and identify intertwin differences in AFAC and parameters of cardiac function. METHODS High-frame rate four-chamber views of the fetal heart, including the mid-thoracic aorta, were collected prospectively in MCDA twin pairs referred to our center between June 2014 and April 2015. Using speckle-tracking software, the endovascular border of the aorta was traced manually during systole, with guidance on cardiac cycle timing by anatomical M-mode. AFAC, defined as the difference between maximum and minimum area divided by minimum area, expressed as a percentage, was calculated offline and averaged over three cardiac cycles. Tissue Doppler and displacement were used to measure long-axis cardiac function. Intra- and interclass correlation coefficients were used to test observer variability. RESULTS Fifty-one MCDA twin pregnancies were included, comprising uncomplicated MCDA (n = 14), TTTS Stages 1/2 (n = 21) and TTTS Stages 3/4 (n = 16). Median gestational age was 20.4 (range, 16.2-27.5) weeks. Mean ± SD heart rate was 142.6 ± 7.2 bpm with no significant intertwin pair differences. AFAC was significantly higher in recipients than in donors of TTTS pairs (Stages 1/2: 72.3 ± 29.9% vs 43.7 ± 19.3%, P < 0.001; Stages 3/4: 75.2 ± 29.2% vs 42.5 ± 18.4%, P = 0.002), consistent with higher recipient pulse pressure. No intertwin differences in AFAC were seen in uncomplicated MCDA pairs. Inter- and intraclass correlation coefficients for AFAC were 0.894 and 0.888. AFAC correlated significantly with combined cardiac output (r = 0.252, P = 0.011) and left and right E/E' ratio (left: r = 0.302, P = 0.004; right: r = 0.247, P = 0.030). CONCLUSION AFAC is a quantifiable and reproducible method to assess aortic distensibility and is a promising tool to monitor the response to prelaser therapeutic interventions in pregnancies with TTTS. Copyright © 2015 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- C Wohlmuth
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
- Department of Obstetrics and Gynecology, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - F A Osei
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
| | - K J Moise
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
| | - A Johnson
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
| | - R Papanna
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
| | - M Bebbington
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
| | - H M Gardiner
- The Fetal Center at Children's Memorial Hermann Hospital, Department of Obstetrics, Gynecology and Reproductive Sciences, UT Health - McGovern Medical School, Houston, TX, USA
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11
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Abstract
This review addresses the physiology of monochorionic diamniotic (MC/DA) twins and the potential for twin–twin transfusion syndrome (TTTS). It focuses on the underlying cardiovascular pathophysiology of TTTS and the cardiovascular impact of TTTS for both the recipient and the donor twin. It explains the principles for assessment and monitoring of these cardiovascular changes and how these may be used to guide pregnancy management. Finally, it describes the effect of treatment on the altered hemodynamics and how this can influence pregnancy and perinatal management, as well as longer-term follow-up.
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12
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Crispi F, Gratacós E. Fetal cardiac function: technical considerations and potential research and clinical applications. Fetal Diagn Ther 2012; 32:47-64. [PMID: 22614129 DOI: 10.1159/000338003] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 03/07/2012] [Indexed: 12/12/2022]
Abstract
Fetal echocardiography was initially used to detect structural anomalies but has more recently also been proposed to assess fetal cardiac function. This review summarizes technical issues and limitations in fetal cardiac function evaluation, as well as its potential research and clinical applications. Functional echocardiography has been demonstrated to select high-risk populations and to be associated with outcome in several fetal conditions including intrauterine growth restriction, twin-to-twin transfusion syndrome, maternal diabetes, and congenital diaphragmatic hernia. Fetal heart evaluation is challenging due to the smallness and high heart rate of the fetus and restricted access to the fetus far from the transducer. Due to these limitations and differences in cardiac function which are related to fetal maturation, cardiovascular parameters should be validated in the fetus and used with caution. Despite these precautions, in expert hands and with appropriate ultrasound equipment, evaluation of cardiac function is feasible in most fetuses. Functional fetal echocardiography is a promising tool that may soon be incorporated into clinical practice. Research is warranted to further refine the contribution of fetal cardiac assessment to the diagnosis, monitoring, or prediction of outcomes in various fetal conditions.
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Affiliation(s)
- Fatima Crispi
- Department of Maternal-Fetal Medicine, Institut Clínic de Ginecologia, Obstetrícia i Neonatologia, Hospital Clinic - Institut d'Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain.
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13
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Gratacós E, Ortiz J, Martinez J. A Systematic Approach to the Differential Diagnosis and Management of the Complications of Monochorionic Twin Pregnancies. Fetal Diagn Ther 2012; 32:145-55. [DOI: 10.1159/000342751] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 08/04/2012] [Indexed: 11/19/2022]
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