scholarly journals Intermediate Diastolic Velocity as a Parameter of Cardiac Dysfunction in Growth-Restricted Fetuses

2015 ◽  
Vol 39 (1) ◽  
pp. 28-39 ◽  
Author(s):  
Xiangna Tang ◽  
Edgar Hernandez-Andrade ◽  
Hyunyoung Ahn ◽  
Maynor Garcia ◽  
Homam Saker ◽  
...  
Keyword(s):  
Cardiac Dysfunction ◽  
Umbilical Artery ◽  
Perinatal Death ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Atrioventricular Valves ◽  
Diastolic Velocity ◽  
Cardiac Ventricles ◽  
Restriction Methods

Objective: To evaluate the intermediate intracardiac diastolic velocities in fetuses with growth restriction. Methods: Doppler waveforms of the two atrioventricular valves were obtained. Peak velocities of the E (early) and A (atrial) components, and the lowest intermediate velocity (IDV) between them, were measured in 400 normally grown and in 100 growth-restricted fetuses. The prevalence of abnormal IDV, E/IDV, and A/IDV ratios in fetuses presenting with perinatal death or acidemia at birth (pH ≤7.1) was estimated. Results: IDV was significantly lower and E/IDV ratios significantly higher in the two ventricles of growth-restricted fetuses with reduced diastolic velocities in the umbilical artery (p < 0.05). In 13 fetuses presenting with perinatal death or acidemia at birth, 11 (85%) had either an E/IDV or A/IDV ratio >95th percentile, whereas 5 (38%) showed absent or reversed atrial velocities in the ductus venosus (DV-ARAV; p < 0.04). Fetuses without DV-ARAV but with elevated E/IDV ratios in either ventricle were nearly 7-fold more likely to have perinatal demise or acidemia at birth (OR 6.9, 95% CI 1.4-34) than those with E/IDV ratios <95th percentile. Conclusion: The E/IDV and A/IDV ratios in the two cardiac ventricles might provide information about the risk of perinatal demise or acidemia in growth-restricted fetuses.

scholarly journals Correlation of Doppler assessment of fetal aortic isthmus with perinatal outcome in intrauterine growth restriction

2018 ◽  
Vol 7 (9) ◽  
pp. 3780
Author(s):  
Bhoomika Tantuway ◽  
Y. M. Mala ◽  
Anju Garg ◽  
Reva Tripathi
Keyword(s):  
Blood Flow ◽  
Pregnant Women ◽  
Perinatal Outcome ◽  
Umbilical Artery ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Additional Parameter ◽  
Intrauterine Death ◽  
Aortic Isthmus ◽  
Diastolic Velocity

Background: The objective of the present study was to find out association between aortic isthmus Doppler changes and perinatal outcome in growth restricted fetuses with placental insufficiency.Methods: It is a prospective case control study, cases were 43 pregnant women with fetal growth restriction (FGR) with abnormal umbilical artery (UA) Doppler while 43 pregnant women with FGR but normal UA doppler, matched with period of gestation were taken as control. The direction of blood flow in aortic isthmus studied which may be antegrade, absent or retrograde and correlation between qualitative parameters of umbilical artery, aortic isthmus and ductus venosus were studied. Quantitative parameters, PI and RI were also calculated. Patients were managed as per hospital protocols. Perinatal outcome and any adverse event e.g. stillbirth, neonatal death, respiratory distress syndrome, intensive care unit stay >14 days etc. was noted.Results: The number of intrauterine death (IUD) and still birth was increased in women with absent and retrograde flow in aortic isthmus, 66.7% and 71.4% respectively (p value <0.001). Retrograde blood flow in the aortic isthmus is consistently associated with absent or reverse end diastolic velocity in umbilical artery and ductus venosus.Conclusions: Doppler of aortic isthmus is an additional parameter to assess severity of FGR. It plays an important role in termination of preterm FGR fetuses.

Umbilical Artery Half-Peak Systolic Velocity Deceleration Time in Fetal Growth Restriction

2015 ◽  
Vol 40 (2) ◽  
pp. 128-134 ◽  
Author(s):  
Juan Carlos Bustos ◽  
Vivian Gonzalez ◽  
Waldo Sepulveda
Keyword(s):  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Perinatal Outcome ◽  
Umbilical Artery ◽  
Perinatal Death ◽  
Peak Systolic Velocity ◽  
Growth Restriction ◽  
Ultrasound Evaluation ◽  
Diastolic Velocity ◽  
Deceleration Time

Objective: To study the umbilical artery (UA) half-peak systolic velocity deceleration time (hPSV-DT) in pregnancies complicated by fetal growth restriction (FGR). Methods: The study included 266 singleton, high-risk pregnancies with an estimated fetal weight <10th percentile, which were examined between 24 and 40 weeks' gestation and delivered within a week from the last ultrasound evaluation. UA hPSV-DT was measured with Doppler ultrasound in the same wave used to measure the pulsatility index. UA hPSV-DT values were correlated with perinatal outcome. Results: UA hPSV-DT <5th percentile was found in 87 and 98% of fetuses with moderate and severe FGR, respectively. 94% of fetuses with a UA hPSV-DT <90 ms had poor perinatal outcome including perinatal death or prolonged admission to the neonatal intensive care unit. None of the fetuses had a UA hPSV-DT <70 ms. Perinatal death occurred in 39 fetuses; UA hPSV-DT was abnormal in all of them, with 95% of these fetuses having values of ≤120 ms. In the group of fetuses with absent/reverse end-diastolic velocity in the UA, the perinatal mortality rate was 51% for those with a UA hPSV-DT ≤90 ms and only 23% for those having a UA hPSV-DT >90 ms (p < 0.01). Conclusions: UA hPSV-DT seems to be a useful technique in the evaluation of pregnancies at risk for FGR and perinatal death. Additionally, hPSV-DT was shown to be a good predictor of perinatal death, with values of <90 ms corresponding to imminent risk of intrauterine demise and values of <70 ms being likely to be incompatible with intrauterine life.

scholarly journals Задержка (замедление) роста плода: современные принципы диагностики, классификации и динамического наблюдения

2019 ◽  
pp. 33-44
Keyword(s):  
Doppler Ultrasound ◽  
Fetal Growth ◽  
Fetal Growth Restriction ◽  
Uterine Artery ◽  
Umbilical Artery ◽  
Placental Insufficiency ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Cerebroplacental Ratio

В статье детально представлены унифицированные критерии диагностики задержки (замедления) роста плода, выработанные в 2016 г. ведущими мировыми экспертами и рекомендованные к применению в клинической и научной работе. Обсуждается современный подход к анализу допплерометрических параметров кровотока в системе “мать-плацентаплод”, включая расчет церебральноплацентар ного отношения. Приводятся международные принципы обследования беременных с задержкой роста плода, протоколы и алгоритмы дальнейшего наблюдения, выбора срока и метода родоразрешения, разработанные на основании доказательных многоцентровых европейских исследований. Ключевые слова: задержка (замедление) роста плода, церебрально-плацентарное отношение, артерия пуповины, маточная артерия, венозный проток, плацентарная недостаточность, ультразвуковое допплеровское исследование, fetal growth restriction, cerebroplacental ratio, umbilical artery, uterine artery, ductus venosus, placental insufficiency, Doppler ultrasound

Cord Occlusion in Monochorionic Twins with Early Selective Intrauterine Growth Restriction and Abnormal Umbilical Artery Doppler: A Consecutive Series of 90 Cases

2015 ◽  
Vol 39 (3) ◽  
pp. 186-191 ◽  
Author(s):  
Mauro Parra-Cordero ◽  
Mar Bennasar ◽  
José María Martínez ◽  
Elisenda Eixarch ◽  
Ximena Torres ◽  
...  
Keyword(s):  
Intrauterine Growth Restriction ◽  
Umbilical Artery ◽  
Perinatal Outcomes ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Consecutive Series ◽  
Type Ii ◽  
Monochorionic Twins ◽  
Intrauterine Growth ◽  
Umbilical Artery Doppler

Objective: To describe perinatal outcomes achieved with cord occlusion (CO) in monochorionic twins with severe selective intrauterine growth restriction (sIUGR) and abnormal umbilical artery Doppler in the IUGR twin (types II and III). Methods: We studied a consecutive series of 90 cases of sIUGR with abnormal Doppler treated with CO of the IUGR fetus. Abnormal Doppler was defined as continuous (type II, n = 41) or intermittent (type III, n = 49) absent/reversed end-diastolic flow. All cases presented at least one of the following severity criteria: gestational age (GA) <22 weeks, inter-twin estimated weight discordance >35%, reversed end-diastolic umbilical artery flow or ductus venosus pulsatility index >95th centile. We prospectively recorded pregnancy course and perinatal outcome. Results: Median GA at surgery was 20.6 weeks and mean duration 22.4 min. Miscarriage (<24 weeks) occurred in 3.3% (3/90) and preterm delivery <32 weeks in 7.1% (6/84) of continuing pregnancies. GA at delivery was 36.4 weeks and neonatal survival of the larger twin was achieved in 93.3%. Conclusion: In a consecutive series studied by an experienced team, CO in monochorionic twins with severe sIUGR type II or III was associated with delivery >32 weeks in 92.9% and neonatal survival of the normal twin in 93.3% of pregnancies.

Hematological changes in severe early onset growth-restricted fetuses with absent and reversed end-diastolic flow in the umbilical artery

2017 ◽  
Vol 45 (3) ◽  
Author(s):  
Franz Bahlmann ◽  
Ammar Al Naimi ◽  
Manfred Ossendorf ◽  
Monica Schmidt-Fittschen ◽  
Arne Willruth
Keyword(s):  
Early Onset ◽  
Umbilical Artery ◽  
Reverse Flow ◽  
Color Doppler ◽  
Venous Blood ◽  
Growth Restriction ◽  
Ductus Venosus ◽  
Diastolic Flow ◽  
Hemodynamic Compromise ◽  
Hematological Changes

AbstractBackground:Erythropoietin seems to play an important role in the regulation of fetal hypoxemia. The present prospective study was designed to determine if changes in erythropoietin levels can be found in fetuses with severe early-onset growth restriction and hemodynamic compromise.Methods and results:Erythropoietin, hemoglobin, hematocrit, platelet counts, normoblasts, lacate, arterial and venous blood gasses in the umbilical cord were determined in 42 fetuses with fetal growth restriction (IUGR) with absent (zero-flow) and 26 IUGR fetuses with retrograde end-diastolic flow (reverse-flow) in the umbilical artery. Color Doppler measurements were performed on the middle cerebral artery (PI) and ductus venosus [(S-a)/D and (S-a)/VConclusions:Fetuses with severe IUGR due to chronic placental insufficiency and absent or reversed flow in the umbilical artery show increased erythropoietin levels.

scholarly journals Third trimester Doppler ultrasound as prediction of obstetric outcome in high-risk pregnancy, Gujarat, India

2017 ◽  
Vol 6 (8) ◽  
pp. 3518
Author(s):  
Runoo Ghosh ◽  
Hina Oza ◽  
Shikha Meel
Keyword(s):  
High Risk ◽  
Middle Cerebral Artery ◽  
Lower Limit ◽  
Perinatal Outcome ◽  
Uterine Artery ◽  
Umbilical Artery ◽  
Ductus Venosus ◽  
Third Trimester ◽  
Adverse Perinatal Outcome ◽  
Diastolic Velocity

Background: Doppler ultrasound has emerged as beneficial tool in the assessment of the fetal and placental circulation and in the prediction of adverse pregnancy outcome. Umbilical artery Doppler has proved helpful to supervise the growth restricted fetuses and compromised vasculature as in hypertensive disorders high risk pregnancies. Objective of present study was to investigate the association between third-trimester uterine artery Doppler assessment and adverse obstetric outcome.Methods: This prospective study was done among 110 high risk pregnancies. Vessel like uterine artery, umbilical artery, middle cerebral artery and ductus venosus were studied in present study. Indices calculated: Peak systolic velocity, End diastolic velocity, Mean velocity, Systolic/diastolic ratio, Pulsatility index (PI) and resistance index (RI) of middle cerebral artery (MCA), Ductus venosus S/A ratio.Results: bilateral notch was present statistically significant (p<0.05) in 18.1% and absent in 28.2% among cases of adverse perinatal outcome. UA S/D ratio was >3 in 22.7% and <3 in 11.8% among cases of adverse perinatal outcome and findings were statistically significant (p<0.05). End diastolic velocity was reduced in statistically significant (p<0.05) in 9.1% and normal in 20.1% among cases of adverse perinatal outcome. MCA PI was <lower limit statistically significant (p<0.05) in 24.5% and >lower limit in 18.2% among cases of adverse perinatal outcome. MCA PI/UA PI ratio was <1 statistically significant (p<0.05) in 25.5% and absent in 17.3% among cases of adverse perinatal outcome.Conclusions: Increase in UA PI and decrease in MCA PI are early marker for detection of fetal compromise. Ratio of indices between MCA PI and UA PI reflects brain sparing effect as well as placental insufficiency and these are more specific in detection of IUGR than individual artery indices.

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