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https://www.readbyqxmd.com/read/29120452/vascular-aging-and-cardiac-maladaptation-in-growth-restricted-preterm-infants
#1
A Sehgal, B J Allison, S M Gwini, S Menahem, S L Miller, G R Polglase
OBJECTIVE: To assess arterial morphology and mechanics in preterm infants with fetal growth restriction (FGR) compared with those appropriate for gestational age (AGA) in the early neonatal period. STUDY DESIGN: This observational study involved 20 preterm FGR infants (28 to 32 weeks) of gestational age (GA) and birth weight (BW) <10th centile and 20 preterm AGA infants. Vascular ultrasound was performed to measure aortic properties. RESULTS: GA and BW of FGR and AGA infants were 29...
November 9, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29060332/investigating-fetal-myocardial-function-in-heart-anomalies-by-doppler-myocardial-performance-indices
#2
Ahsan H Khandoker, Haitham M Al-Angari, F Marzbanrad, Y Kimura
Fetal myocardial performance index are used to assess aspects of systolic and diastolic function in developing fetal heart. The aim of this study was to determine normal values of fetal left ventricular (LV) Tei Index (TI) for measuring systolic performance and K-Index (KI) for diastolic performance in early (<;32 weeks), Mid (32-35 weeks) and late trimester (35-41 weeks) normal fetuses and fetuses with congenital heart diseases (CHD). Simultaneous recordings of Doppler Ultrasound Signal (DUS) of the LV outflow tracts and fetal electrocardiogram signals were obtained in 57 normal and 14 fetuses with CHD...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28962216/assessing-the-impact-of-total-extracorporeal-circulation-on-hemodynamics-in-an-ovine-fetal-model
#3
Fei Xiao, Jian Zhuang, Cheng-Bin Zhou, Ji-Mei Chen, Jian-Zheng Cen, Gang Xu, Shu-Sheng Wen
The present study aimed to evaluate the impact of total extracorporeal circulation on hemodynamics and placental function in an ovine fetal model. Mid-term ovine fetuses (n=6) underwent extracorporeal circulation (30 min), cardioplegic arrest (20 min) and monitoring (120 min). The ascending aorta and umbilical cords of the fetuses were occluded during the bypass and an extracorporeal membrane oxygenator was used as the oxygen source. Biventricular intracardiac pressures, echocardiographic data, blood gas levels and placental function variables were recorded, and statistical analysis was performed using the repeated-measure analysis of variance test...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28682423/assessments-of-m-mode-color-echocardiography-on-fetal-right-ventricular-diastolic-function-with-umbilical-cord-around-neck
#4
W Shi, H-X Liu, Z-D Xuan, L Zhao, J-Z Li, Y-H Wang
OBJECTIVE: To investigate the fetal right ventricular diastolic function under the condition of umbilical cord around neck (UCAN), and analyze the changes of the right ventricular propagation velocity (Vp), then discuss the clinical value of the color M-mode echocardiography in the evaluation of fetal ventricular diastolic function quantitatively. PATIENTS AND METHODS: All patients enrolled were with singleton pregnancy from Cangzhou Central Hospital from December 2013 to December 2015 as the experimental group...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28455084/recipient-umbilical-artery-elongation-redundancy-in-twin-twin-transfusion-syndrome
#5
COMPARATIVE STUDY
Roopali Donepudi, Lovepreet K Mann, Christoph Wohlmuth, Anthony Johnson, Michael W Bebbington, Kenneth J Moise, David S Boudreaux, Helena Gardiner, Ramesha Papanna
BACKGROUND: Chronic hypertension in adults causes arterial lengthening in major arteries, but the effects of early fetal hypertension on the twin-twin transfusion syndrome recipient's vascular architecture remains unknown. OBJECTIVE: We hypothesize that arterial cord redundancy is related to recipient hypertension and subsequent heart failure. Our objectives were to: (1) establish a 3-dimensional color Doppler ultrasound method of measuring umbilical arterial length relative to its corresponding venous segment in the umbilical cord using artery vein angle; (2) compare recipient artery vein angle to gestational age-matched controls; and (3) test the association of artery vein angle with recipient heart failure...
August 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28410946/right-atrial-dysfunction-in-the-fetus-with-severely-regurgitant-tricuspid-valve-disease-a-potential-source-of-cardiovascular-compromise
#6
Lisa W Howley, Nee Scze Khoo, Anita J Moon-Grady, Sonali S Patel, Fayeza Alrais, Wayne Tworetzky, Timothy Colen, Paul Brooks, Jean Trines, Tiina Ojala, Lisa K Hornberger
BACKGROUND: In severe right heart obstruction (RHO), redistribution of cardiac output to the left ventricle (LV) is well tolerated by the fetal circulation. Although the same should be true of severely regurgitant tricuspid valve disease (rTVD) with reduced or no output from the right ventricle, affected fetuses more frequently develop hydrops or suffer intrauterine demise. We hypothesized that right atrium (RA) function is altered in rTVD but not in RHO, which could contribute to differences in outcomes...
April 11, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28324997/assessing-the-development-of-fetal-myocardial-function-by-a-novel-doppler-myocardial-performance-index
#7
Ahsan H Khandoker, F Marzbanrad, Y Kimura, Saeed Al Nuaimi, M Palaniswami
Doppler-derived myocardial performance index are used to assess aspects of systolic and diastolic function in adult as well as fetal heart. The Tei Index (TI) is a useful and non-invasive tool. The aim of this study was to determine normal values of fetal left ventricular (LV) TI in early (16-32 weeks) and late trimester (35-41 weeks) fetuses and to develop a new myocardial performance index (K-index; KI) which focuses on fetal diastolic interval when oxygenated blood from the placenta filled in the LV. Simultaneous recordings of Doppler Ultrasound Signal (DUS) of the LV outflow tracts and fetal electrocardiogram signals were obtained in 55 early- and late-trimester fetuses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227331/assessing-the-development-of-fetal-myocardial-function-by-a-novel-doppler-myocardial-performance-index
#8
Ahsan H Khandoker, F Marzbanrad, Y Kimura, Saeed Al Nuaimi, M Palaniswami, Ahsan H Khandoker, F Marzbanrad, Y Kimura, Saeed Al Nuaimi, M Palaniswami, Ahsan H Khandoker, Y Kimura, Saeed Al Nuaimi, F Marzbanrad, M Palaniswami
Doppler-derived myocardial performance index are used to assess aspects of systolic and diastolic function in adult as well as fetal heart. The Tei Index (TI) is a useful and non-invasive tool. The aim of this study was to determine normal values of fetal left ventricular (LV) TI in early (16-32 weeks) and late trimester (35-41 weeks) fetuses and to develop a new myocardial performance index (K-index; KI) which focuses on fetal diastolic interval when oxygenated blood from the placenta filled in the LV. Simultaneous recordings of Doppler Ultrasound Signal (DUS) of the LV outflow tracts and fetal electrocardiogram signals were obtained in 55 early- and late-trimester fetuses...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/27896244/adaptive-responses-of-cardiac-function-to-fetal-postural-change-as-gestational-age-increases
#9
Woo Jin Kim, Hye Jin Choi, Sun Young Yang, Boo Hae Koo, Ki Hoon Ahn, Geum Joon Cho, Soon Cheol Hong, Min-Jeong Oh, Hai-Joong Kim
OBJECTIVE: The cardiovascular system maintains homeostasis through a series of adaptive responses to physiological requirements. However, little is known about the adaptation of fetal cardiac function to gravity, according to gestational age. In the present study, we aimed to evaluate the adaptive responses of cardiac function to postural changes, using Tei index measurements. METHODS: Fetal echocardiography and Doppler examination were performed on 114 women with vertex singleton pregnancies at 19 to 40 weeks' gestation...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27626241/myocardial-function-pre-and-post-fetal-endoscopic-tracheal%C3%A2-occlusion-feto-in-fetuses-with-left-sided-moderate-to-severe-congenital-diaphragmatic-hernia
#10
Jan Degenhardt, Christian Enzensberger, Aline Tenzer, Andrea Kawecki, Thomas Kohl, Ellydda Widriani, Roland Axt-Fliedner
Purpose To evaluate pre- and postprocedural myocardial function in fetuses with moderate to severe congenital diaphragmatic hernia (CDH) who underwent FETO to improve survival and to reduce morbidity and to compare these data with fetuses and CDH not undergoing FETO and normal controls. Materials and Methods 8 fetuses with isolated left-sided CDH were included and underwent FETO at our center between 2012 and 2013. Prior to and after the operation, myocardial function was assessed by measuring the mitral annular plane systolic excursion (MAPSE), the tricuspid annular plane systolic excursion (TAPSE), Tei index, isovolumetric contraction time (ICT), ejection time (ET), isovolumetric relaxation time (IRT) for the left ventricle in PW Doppler ultrasound as well as ICT, ET, IRT and Tei index in pulsed wave tissue Doppler imaging (PW-TDI) for the left and right ventricle...
January 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/27562129/right-heart-function-of-fetuses-and-infants-with-large-ventricular-septal-defect-a-longitudinal-case-control-study
#11
Jiao Chen, Liang Xie, Li Dai, Li Yu, Lijun Liu, Yongbi Zhou, Guiying Wu, Fengfei Qin, Hanmin Liu
The objective of this study was to detect the effect of a large ventricular septal defect (VSD) on right ventricular function before and after birth. All consecutive children with large VSD who were born in our hospital between January 2013-February 2016 and followed up throughout early infancy, and who lacked malformations or chromosomal abnormalities, were identified by a retrospective review of the medical records and included in this retrospective longitudinal case-control study (n = 30). Thirty normal control cases with an equivalent gestational age and gender served as controls...
December 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27466259/echocardiographic-parameters-and-outcomes-in-primary-fetal-cardiomyopathy
#12
David S Ezon, Nancy A Ayres, Carolyn A Altman, Susan W Denfield, Shaine A Morris, Shiraz A Maskatia
OBJECTIVES: Primary fetal cardiomyopathy is a rare entity, with a poor prognosis. We sought to describe its echocardiographic characteristics and outcomes. METHODS: We performed a 12-year retrospective review of fetuses with primary cardiomyopathy. RESULTS: Of more than 6000 fetuses evaluated, 25 met criteria for primary cardiomyopathy, and 18 had sufficient echocardiographic and pregnancy outcome data for inclusion. At echocardiography, the median gestational age was 29...
September 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27442223/effect-of-cordocentesis-on-fetal-myocardial-performance
#13
Kasemsri Srisupundit, Fuanglada Tongprasert, Suchaya Luewan, Kuntharee Traisrisilp, Phudit Jatavan, Theera Tongsong
OBJECTIVE: To compare fetal Tei index before, immediately after and 30 min after cordocentesis for prenatal diagnosis. PATIENTS AND METHODS: Pregnant women undergoing prenatal diagnostic cordocentesis in the early mid-trimester underwent measurement of the fetal Tei index of both right and left ventricles just before cordocentesis, immediately after and at 30 min after the procedure. RESULTS: A total of 143 singleton women underwent cordocentesis at a median gestational age of 19 weeks (range 16-23)...
September 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27155334/assessment-of-right-heart-function-in-preeclampsia-by-echocardiography
#14
Fatma Nihan Turhan Çağlar, Cem Ozde, Evrim Bostancı, İlker Murat Çağlar, Serkan Çiftçi, İsmail Unğan, Bülent Demir, Osman Karakaya
BACKGROUND: Preeclampsia (PE) is a multisystemic disorder characterized by hypertension and proteinuria that is specific to pregnancy and associated with maternal and fetal morbidity-mortality. AIM: To assess right heart structure and function in PE by echocardiography using conventional and tissue Doppler techniques. METHODS: In total, 67 women with untreated PE and 46 matched healthy pregnant women were included. PE was defined according to the ACOG (2002) criteria...
April 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/26830850/human-embryonic-cardiovascular-function
#15
REVIEW
Ganesh Acharya, Yonghao Gui, Wojciech Cnota, James Huhta, Agata Wloch
INTRODUCTION: This review presents an overview of descriptive knowledge on human embryonic cardiovascular physiology mostly based on noninvasive assessment by Doppler ultrasonography. Our objective was to identify and analyze published studies on embryonic cardiovascular function, and summarize available knowledge in this field. MATERIAL AND METHODS: Citations related to human embryonic cardiovascular function were searched in PubMed, EMBASE, CINAHL and Web of Science using keywords and MeSH terms without any time limitation...
2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/25172400/systolic-and-diastolic-function-of-the-fetal-single-left-ventricle
#16
Paul A Brooks, Nee S Khoo, Lisa K Hornberger
BACKGROUND: The functionally single fetal right ventricle demonstrates reduced longitudinal relative to circumferential contraction velocities and deformation, a pattern similar to the normal fetal left ventricle. Altered diastolic properties are also present, with greater reliance on atrial contraction for right ventricular filling. It is unknown whether the functionally single left ventricle (SLV) demonstrates similar altered deformation patterns and diastolic properties. METHODS: Echocardiograms from 29 fetuses with SLVs were retrospectively compared with those from 48 controls with appropriately grown left ventricles...
September 2014: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/24834706/comparison-of-fetal-myocardial-contractility-before-and-after-laser-photocoagulation-of-communicating-vessels-in-twin-to-twin-transfusion-syndrome
#17
COMPARATIVE STUDY
Katarzyna Leszczyńska, Krzysztof Preis, Małgorzata Swiatkowska-Freund, Zofia Pankrac
OBJECTIVES: To evaluate changes in myocardial contractility that occur after selective laser photocoagulation of communicating vessels (SLPCV) in fetuses from pregnancies complicated with twin-to-twin transfusion syndrome (TTTS). METHODS: The study included 51 pregnant women between 16 and 26 weeks of gestation who underwent SLPCV due to TTTS. Ultrasonography was performed before SLPCV and on postoperative day 1, 3(4) and 7. Fetal heart contractility in both fetuses was evaluated by determining the shortening fractions of the left and right ventricles (FS LV and FS RV), and the myocardial performance index (Tei-Index)...
April 2014: Ginekologia Polska
https://www.readbyqxmd.com/read/24225288/-perinatal-integrative-intervention-for-critical-pulmonary-artery-valve-stenosis
#18
Kai-yu Zhou, Yi-min Hua, Yi-bin Wang, Qi Zhu, De-zhi Mu, Jun Tang, Rong Zhou, Chuan Wang, Yi-fei Li, Xiao-qing Shi
OBJECTIVE: To investigate the effect of different operation time to percutaneous balloon pulmonic valvuloplasty (PBPV) to critical pulmonary valve stenosis (CPS). METHOD: Twenty-one infants (age ≤ 60 days at operating day) suffered from CPS, diagnosed by fetal echocardiogram and confirmed by echocardiography after birth, were enrolled in this case-control-study with written informed consent during April 2007 to December 2011. Of the 21 cases, 7 had prenatal diagnosis in our prenatal diagnosis center (prenatal group, Pre) and 14 were referred from other hospitals, who were divided into postpartum group A (Post A, referred within 28 days after birth) and postpartum group B (Post B, referred 29 to 60 days after birth)...
August 2013: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/23719251/serial-hemodynamic-assessment-using-doppler-echocardiography-in-a-fetus-with-left-ventricular-aneurysm-presented-as-fetal-hydrops
#19
A Hirose, Y Maeno, K Suda, N Fusazaki, H Kado, T Matsuishi
A 22-week fetus presented with a large left ventricular aneurysm, 24 × 21 × 18 mm in size, detected by abnormal four-chamber view, and severe fetal hydrops with pericardial effusion, ascites and skin edema. The aneurysm was thin-walled, hypokinetic, and had enlarged with gestational age, causing compression of the lung. Although the left ventricular function had progressively impaired as expressed by increase in Tei index, hydrops had resolved by 32 weeks of gestation, probably because of maternal digoxin therapy and successful compensation by the right ventricle, as represented by retrograde blood flow in the distal aortic arch via the patent arterial duct...
June 2013: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/23712591/hemodynamic-assessment-of-indomethacin-induced-fetal-heart-failure-in-high-output-state
#20
Theera Tongsong, Suchaya Luewan, Kasemsri Srisupundit, Thanate Jatavan
Hemodynamic study was performed on a 32-year-old woman presenting at 27 weeks' gestation. Ultrasound revealed a single normal fetus with mild cardiomegaly, polyhydramnios, and placental chorioangioma. Doppler study showed increased middle cerebral artery peak systolic velocity, normal Tei index, and forward flow of "a" wave with normal preload in the ductus venosus. Twelve hours after initiation of indomethacin for tocolysis, frank hydrops fetalis developed rapidly. The right ventricle showed poor contractility and performance...
September 2013: Journal of Clinical Ultrasound: JCU
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